WO2022242312A1

WO2022242312A1 - Application-based device connection relationship establishment method and related apparatus

Info

Publication number: WO2022242312A1
Application number: PCT/CN2022/083299
Authority: WO
Inventors: 叶筠
Original assignee: 华为技术有限公司
Priority date: 2021-05-20
Filing date: 2022-03-28
Publication date: 2022-11-24
Also published as: CN115460233A

Abstract

The present application provides an application-based device connection relationship establishment method and a related apparatus. When a first electronic device invokes, by means of a first application for the first time, a second electronic device to provide a first service, connection information of the first electronic device and the second electronic device can be stored. The connection information can comprise a device identifier of the second electronic device and an identifier of the first service. When the first electronic device invokes, by means of the first application again, another electronic device to provide the first service, the first electronic device can invoke, according to the connection information, the second electronic device to provide the first service. According to the method, connection relationships between a plurality of electronic devices can be quickly established. A user does not need to respectively operate on the plurality of electronic devices, such that user operations during the establishment of connections between the plurality of electronic devices are simplified.

Description

Application-based device connection relationship establishment method and related device

This application claims the priority of the Chinese patent application with the application number 202110552602.8 and the application title "Application-Based Device Connection Relationship Establishment Method and Related Devices" submitted to the China Patent Office on May 20, 2021, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the field of terminal technology, in particular to an application-based method for establishing a device connection relationship and a related device.

Background technique

With the development of the Internet of Things, in some application scenarios, users may need to use multiple electronic devices to work together. For example, in the application scenario of course learning through a learning application, the user can use the large screen to play the course video, and at the same time use the tablet to take notes and complete the homework after class.

Currently, an application on an electronic device is generally opened in response to a user operation performed by the user on an icon of the application. For the above-mentioned application scenarios that require multiple electronic devices to work together, the user needs to operate on the multiple electronic devices each time to establish the connection relationship between the multiple electronic devices, and to open the multiple electronic devices. Multiple applications used to work together to implement an application scenario. The above process is cumbersome for the user to operate, and it is difficult to quickly establish a connection relationship between multiple electronic devices.

Contents of the invention

Embodiments of the present application provide an application-based method for establishing a device connection relationship and a related device. Wherein, the first electronic device may acquire the stored connection information. The connection information may include a device identifier of the second electronic device and a service identifier of the first service. According to the connection information, the first electronic device invokes the second electronic device to provide the first service. The method can quickly establish the connection relationship between multiple electronic devices.

In a first aspect, the present application provides an application-based method for establishing a device connection relationship. The method can be applied to communication systems. The communication system may include a first electronic device and a second electronic device. The first electronic device is installed with a first application. The second electronic device is installed with an application for providing the first service. In this method, the first electronic device may acquire first snapshot information of the first session. The first session is a communication in which the first electronic device invokes one or more electronic devices to provide one or more services through the first application. The first snapshot information may include first connection information. The first connection information includes the device identifier of the second electronic device and the identifier of the first service. The first electronic device may send the first instruction to the second electronic device according to the first connection information. The first instruction may be used to instruct the second electronic device to provide the first service. The second electronic device receives the first instruction and provides the first service.

With reference to the first aspect, in some embodiments, the first electronic device may receive a second instruction, and the second instruction may be used to instruct the first electronic device to call the second electronic device to provide the first service through the first application. The first electronic device can create a first session and store first snapshot information. The first electronic device may send the first instruction to the second electronic device according to the second instruction.

It can be seen from the above embodiments that when the first electronic device invokes the second electronic device to provide the first service through the first application for the first time, it may store the first connection information between the first electronic device and the second electronic device. When the first electronic device invokes other electronic devices to provide the first service again through the first application, the first electronic device may invoke the second electronic device to provide the first service according to the first connection information. The above method can quickly establish the connection relationship between multiple electronic devices. The user does not need to perform operations on multiple electronic devices separately, which simplifies user operations when multiple electronic devices are connected.

The above-mentioned first application and the above-mentioned application for providing the first service may be a program entity providing various services in a distributed application, or a

system,

System and other traditional applications in the system.

The above identifier of the first service may be used to indicate specific content of the first service. For example, the above-mentioned first service is a course video playing service. The identifier of the above-mentioned first service may be data indicating a course video playing service. According to the identifier of the first service, the first electronic device can call other electronic devices to provide the first service.

When creating the above-mentioned first session, the first electronic device may allocate a storage sandbox for the first session. Each session can be assigned a storage sandbox. The location of a storage sandbox can be determined by the device account of the electronic device (such as Huawei account), the application identifier invoked by the electronic device in the session, and the session identifier of the session corresponding to the storage sandbox. The storage sandbox for each session is isolated. The electronic device may acquire the snapshot information of a session according to the location of the storage sandbox of the session.

The second instruction received by the above-mentioned first electronic device may come from a user operation acting on the first application. Exemplarily, the first electronic device runs the first application, and displays the user interface of the first application. The first electronic device receives a user operation for invoking other electronic devices to provide the first service, acting on the user interface of the first application. The first electronic device may search for one or more electronic devices that can provide the first service. The one or more electronic devices capable of providing the first service include a second electronic device. In response to the user operation of selecting the second electronic device, the first electronic device may receive the above second instruction, and send the above first instruction to the second electronic device according to the above second instruction. Wherein, the first electronic device may store the first connection relationship with the second electronic device. When the first electronic device calls another electronic device to provide the first service again, the first electronic device may call the second electronic device to provide the first service according to the first connection relationship.

With reference to the first aspect, in some embodiments, the above-mentioned first session has a first session identifier. The session identifier of the first session may be determined by the device account of the first electronic device and the application identifier of the first application. The first electronic device may acquire the first snapshot information according to the first session identifier. In addition, when the first electronic device invokes the second electronic device to provide the first service through the first application, the first electronic device may transfer the above-mentioned first session identifier to the second electronic device. The first session identifier may be included in the above-mentioned first instruction.

With reference to the first aspect, in some embodiments, the first electronic device may indicate to the second electronic device the application that provides the first service. Specifically, the second electronic device is installed with the second application. The second application can be used to provide the first service. The first connection information may further include an application identifier of the second application. The first electronic device sends the first instruction to the second electronic device according to the first connection information. The first instruction may be used to instruct the second electronic device to run the second application to provide the first service.

The above-mentioned second application may be a program entity providing the first service in a distributed application. For example, the second application and the first application are program entities providing different services in the same distributed application. The application identifier of the second application may include the application package name of the distributed application to which the second application belongs and the service package name of the program entity of the first service. Or, the above-mentioned second application may be the above-mentioned traditional application. The application identifier of the second application may be an application package name of the second application.

With reference to the first aspect, in some embodiments, the first electronic device may not instruct the second electronic device to provide the application of the first service. The second electronic device may contain multiple applications that can provide the first service. The second electronic device may select an application from the multiple applications capable of providing the first service to provide the first service. Specifically, the second electronic device is installed with the second application and the third application. Both the second application and the third application can be used to provide the first service. When receiving the first instruction from the first electronic device, the second electronic device can determine whether the second application is available. If it is determined that the second application is available, the second electronic device may run the second application to provide the first service. If it is determined that the second application is unavailable, the second electronic device may determine whether the third application is available. If it is determined that the third application is available, the second electronic device may run the third application to provide the first service.

The situation that an application is unavailable may include: the application is deleted in the electronic device, the electronic device cannot find the application, and the electronic device cannot install the application again.

Wherein, if there is an application that belongs to the same distributed application as the first application among the multiple applications that can provide the first service in the second electronic device, the second electronic device can preferentially select the application that belongs to the same distributed application as the first application. application to provide the first service.

With reference to the first aspect, in some embodiments, the second electronic device may send the first activity information of the application providing the first service to the first electronic device. Wherein, the first activity information may include data for instructing the user interface of the application to present content at the first moment during the provision of the first service. The first moment is any moment when the first service is provided. The first electronic device may store the first activity information in a storage sandbox of the first session. The first activity information is included in the first snapshot information.

During the process of providing the first service by the second electronic device, the second electronic device may periodically send activity information of the application providing the first service every preset time period. Optionally, the second electronic device may send the activity information of the application providing the first service to the first electronic device when the provision of the first service ends. The activity information may be, for example, the video ID of the playing video, the playing progress, data input by the user received on the user interface, and so on. Wherein, when the first electronic device stores the activity information of the application providing the first service in the second electronic device, the activity information received last time may be used to update the activity information received last time. That is, the first electronic device may only store the latest received activity information.

With reference to the first aspect, in some embodiments, when the first electronic device invokes another electronic device to provide the first service through the first application again, it may obtain the first snapshot information from the storage sandbox of the first session. The first snapshot information may include the above-mentioned first activity information. The first electronic device may send the first activity information to the second electronic device. The second electronic device may determine, according to the first activity information, the presentation content of the user interface of the application at the initial moment of running the application for providing the first service. For example, the above-mentioned first service is a course video playing service. The above-mentioned first activity information includes the video identification (or course identification) and playback progress of the course video played by the application providing the first service at the first moment. When the second electronic device starts to run the application providing the first service, the video and the progress to be played in the user interface may be adjusted to the video and the playing progress indicated in the first activity information.

It can be seen from the above embodiments that, in addition to quickly establishing a connection with the second electronic device according to the first connection information in the first snapshot information, and calling the second electronic device to provide the first service, the first electronic device can also The first activity information enables the second electronic device to restore the state of the application providing the first service to the state at the first moment. In this way, the operation traces of the user on the application providing the first service before the first moment can be saved, and the user experience can be improved.

In combination with the first aspect, in some embodiments, when the first electronic device calls other electronic devices to provide a service through an application for the first time, the first electronic device can check whether it calls other electronic devices through other applications to provide a service related to the above-mentioned one. Services of the same type. If found, the first electronic device may recommend calling other electronic devices through other applications to provide a connection relationship corresponding to a service of the same type as the above-mentioned service.

Specifically, the first electronic device is further installed with a fourth application. The first electronic device may receive the third instruction. The third instruction is used to instruct the first electronic device to call the electronic device to provide the first service through the fourth application. The first electronic device may obtain the first connection information by searching for the connection information including the identifier of the first service from the snapshot information of one session or multiple sessions. The above one or more sessions are created by the first electronic device. The first electronic device may send a fourth instruction to the second electronic device according to the first connection information, create a second session, and store second snapshot information of the second session. The fourth instruction may be used to instruct the second electronic device to provide the first service. The second session is a communication performed by the first electronic device calling one or more electronic devices to provide one or more services through the fourth application. The second snapshot information may include second connection information. The second connection information may include a device identifier of the second electronic device and an identifier of the first service. The second electronic device receives the fourth instruction and provides the first service.

Wherein, the storage sandbox of each session in the first electronic device is isolated. For example, the above-mentioned storage sandbox of the first session can only be accessed by the first application in the first electronic device, but cannot be accessed by the fourth application in the first electronic device. The first electronic device may store the connection information in the snapshot information of each session to the collaborative record storage module. The collaborative record storage module can be accessed by one or more applications in the first electronic device. The first electronic device may obtain the first connection information from the storage sandbox of the first session, and store the first connection information in the collaborative record storage module. When the first electronic device invokes other electronic devices to provide the first service through the first application, it may find the first connection information including the identifier of the first service from the collaborative record storage module. Further, according to the first connection information, the first electronic device may call the second electronic device to provide the first service through the fourth application.

The search is not limited to connection information including the identifier of the first service, the first electronic device may also search for connection information corresponding to a service of the same type as the first service. The type of service may provide the type of action that this service requires the electronic device to perform. The type of service can be determined by the service's identification. For example, the identifier of the service is the data indicating the course video playing service. That is, this service is a course video playback service. Then the type of this service can be a video playback class. The first electronic device may search the connection information corresponding to all services whose type is video playing from the cooperative record storage module.

The above-mentioned embodiments can be conveniently used to call the electronic devices that one is used to to work together, and provide user experience.

With reference to the first aspect, in some embodiments, after the first electronic device acquires the first snapshot information of the first session, it may first determine whether the second electronic device is available. If it is determined that the second electronic device is unavailable, the first electronic device may select a third electronic device from the searched multiple electronic devices, and invoke the third electronic device to provide the first service. The third electronic device is an electronic device that is available among the plurality of searched electronic devices and can provide the first service.

Wherein, the first electronic device may determine whether the second electronic device is available by sending an inquiry message to the second electronic device. If the first electronic device receives a response message from the second electronic device to the above inquiry message, and the response message indicates that the second electronic device is available, the first electronic device may determine that the second electronic device is available. Otherwise, the first electronic device determines that the second electronic device is unavailable.

When the first electronic device invokes other electronic devices to provide the first service through the first application, in addition to acquiring the first snapshot information of the first session, it may also search for electronic devices that can provide the first service. Wherein, the first electronic device may search for electronic devices in the same local area network (for example, the same home Wi-Fi) as the first electronic device. That is, the plurality of electronic devices found above are in the same local area network as the first electronic device.

In a possible implementation manner, the first electronic device may specifically select the third electronic device from the searched multiple electronic devices according to the first rule. Wherein, the third electronic device is an electronic device that is available among the plurality of electronic devices, can provide the first service, and has the highest priority. The first rule includes: the priority of the electronic device with the same device account and the same device type as the first electronic device> the priority of the electronic device with the same device account as the first electronic device but a different device type> the priority of the electronic device with the same device account as the first electronic device Priorities of electronic devices with different device accounts but the same device type>priorities of electronic devices with different device accounts and different device types from the first electronic device.

Optionally, there are multiple electronic devices with the same device account and different device types of the first electronic device, or multiple electronic devices with different device accounts and different device types from the first electronic device. Then, the first rule may further include: among multiple electronic devices of different device types, the priority of the electronic device is determined by the privacy degree of the electronic device, and the lower the privacy degree of the electronic device, the higher the priority of the electronic device. The privacy of electronic devices includes: TV = speaker < tablet < watch = mobile phone.

The first electronic device calling the electronic device with a high degree of privacy to provide the first service may require the user to confirm on the electronic device with a high degree of privacy. Electronic devices with lower privacy are ranked higher. The first electronic device preferentially selects an electronic device with a low privacy density, which can simplify user operations during the connection process and improve device connection efficiency.

With reference to the first aspect, in some embodiments, after the first electronic device obtains the first snapshot information of the first session, it may further display options of the second electronic device on the user interface according to the first connection information. The first electronic device may detect a first user action on an option of the second electronic device. The first user operation is used to trigger the first electronic device to send the first instruction to the second electronic device. In response to the first user operation, the first electronic device may send a first instruction to the second electronic device.

The aforementioned second electronic device options may be displayed in the user interface in different display states. Specifically, the first electronic device may determine whether the second electronic device is available. If it is determined that the second electronic device is available, the first electronic device may display the options of the second electronic device in the first state. The first state is used to indicate that the second electronic device is available. If it is determined that the second electronic device is unavailable, the first electronic device may display the options of the second electronic device as a second state. The second state is used to indicate that the second electronic device is unavailable.

With reference to the first aspect, in some embodiments, a communication system corresponding to a session may include multi-level connections. The electronic device that creates the session can store the connection information between each node in the multi-level connection, and store the connection information in the storage sandbox of the session. According to the connection information, the electronic device that created the session can restore the multi-level connection.

Specifically, the communication system may further include a fourth electronic device. The fourth electronic device is installed with an application for providing the second service. The first snapshot information includes third connection information. The third connection information includes source device information and destination device information. The source device information in the third connection information includes the device identifier of the second electronic device and the identifier of the first service. The destination device information in the third connection information includes the device identifier of the fourth electronic device and the identifier of the second service. After the first electronic device obtains the first snapshot information of the first session, the first electronic device may send the third connection information to the second electronic device. The second electronic device may use the application providing the first service to send the fifth instruction to the fourth electronic device according to the third connection information. The fifth instruction is used to instruct the fourth electronic device to provide the second service. The fourth electronic device receives the fifth instruction and provides the second service.

The source device may be an electronic device that invokes services provided by other electronic devices. The destination device may be an electronic device that receives the calling instruction and provides services.

With reference to the first aspect, in some embodiments, the second electronic device receives the sixth instruction. The sixth instruction is used to instruct the second electronic device to call the fourth electronic device to provide the second service through the running application providing the first service. The second electronic device sends the fifth instruction to the fourth electronic device according to the sixth instruction.

If the second electronic device determines that the way to open the application providing the first service is actively opening, the second electronic device creates a third session and stores third snapshot information of the third session. Active opening means that the electronic device receives a user operation acting on an application to open the application, and starts the application. The third session is a communication in which the second electronic device invokes one or more electronic devices to provide one or more services through the application providing the first service, and the third snapshot information includes third connection information. Wherein, the second electronic device may assign a storage sandbox to the third session to store the third snapshot information.

If the second electronic device determines that the mode of opening the application providing the first service is passive opening, the second electronic device sends the third connection information to the first electronic device. The first electronic device stores the third connection information in the storage sandbox of the first session. Passive opening means that the electronic device receives an invocation instruction for providing a service from another electronic device, and starts an application for providing the service.

It can be seen from the foregoing embodiments that the first electronic device may call the second electronic device to provide the first service through the first application. On the basis that the second electronic device is invoked by the first electronic device to provide the first service, the second electronic device invokes the fourth electronic device to provide the fourth service through the application providing the first service. Wherein, the first electronic device may transfer the first session identifier of the first session to the second electronic device. The second electronic device transmits the session identifier of the first session to the fourth electronic device. The second electronic device may send the connection information between itself and the fourth electronic device to the first electronic device. The first electronic device can restore the connection relationship between itself and the second electronic device, and the connection relationship between the second electronic device and the fourth electronic device based on the connection information stored by itself. The above method can quickly establish the connection relationship between multiple electronic devices. Users do not need to operate on multiple electronic devices separately, which not only simplifies the user operations when multiple electronic devices are connected, but also facilitates users to call their accustomed electronic devices and enter familiar application scenarios faster, improving the user experience. user experience.

In the foregoing embodiment, the fifth instruction sent by the second electronic device to the fourth electronic device may include an application identifier of an application (such as a fifth application) that provides the second service. Then, the fourth electronic device runs the fifth application to provide the second service according to the fifth instruction.

With reference to the first aspect, in some embodiments, the first snapshot information further includes fourth connection information, the fourth connection information includes source device information and destination device information, and the source device information in the fourth connection information includes the information of the second electronic device. The device identifier, the identifier of the first service, and the destination device information in the fourth connection information include the device identifier of the first electronic device and the application identifier of the first application. After the first electronic device acquires the first snapshot information of the first session, the first electronic device may send fourth connection information to the second electronic device. According to the fourth connection information, the second electronic device uses the application providing the first service to send a seventh instruction to the first electronic device, where the seventh instruction is used to instruct the first electronic device to invoke the first application. The first electronic device compares its first-level identification with the second-level identification of the second electronic device, determines that the first-level identification is lower than the second-level identification, and the first electronic device refuses to respond to the seventh instruction. An electronic device in a session has a hierarchical identification, and the hierarchical identification of an electronic device is determined by the connection distance between an electronic device and the electronic device that creates a session, and the farther the connection distance from the electronic device that creates a session, The higher the level identification of an electronic device is.

It can be known from the above embodiments that the first electronic device invokes the second electronic device to provide the second service through the first application, and the second electronic device invokes the first electronic device to run the first application through the application providing the second service. The above problem of cyclic calling may cause the connection information between the two electronic devices to be cyclically transmitted between the two devices, wasting computing resources and storage resources of the two electronic devices. However, the above-mentioned embodiment can avoid the problem of cyclic calling between electronic devices in a session, and save computing resources and storage resources of electronic devices.

In a second aspect, the present application provides an application-based method for establishing a device connection relationship. Wherein, the first electronic device acquires the first snapshot information of the first session, the first electronic device is installed with the first application, and the first session provides one or more items for the first electronic device to call one or more electronic devices through the first application For communications performed by a service, the first snapshot information includes first connection information, and the first connection information includes a device identifier of the second electronic device and an identifier of the first service. The second electronic device is installed with an application for providing the first service. The first electronic device sends a first instruction to the second electronic device according to the first connection information, where the first instruction is used to instruct the second electronic device to provide the first service.

With reference to the second aspect, in some embodiments, the first electronic device receives a second instruction, and the second instruction is used to instruct the first electronic device to call the second electronic device to provide the first service through the first application. The first electronic device may create a first session, and store first snapshot information in a storage sandbox of the first session. The first electronic device may send the first instruction to the second electronic device according to the second instruction.

It can be seen from the above embodiments that when the first electronic device invokes the second electronic device to provide the first service through the first application for the first time, it may store the first connection information between the first electronic device and the second electronic device. When the first electronic device calls another electronic device to provide the first service again through the first application, the first electronic device may call the second electronic device to provide the first service according to the first connection information. The above method can quickly establish the connection relationship between multiple electronic devices. The user does not need to perform operations on multiple electronic devices separately, which simplifies user operations when multiple electronic devices are connected.

With reference to the second aspect, in some embodiments, the first session has a first session identifier, and the first session identifier is determined by a device account of the first electronic device and an application identifier of the first application. The first session identifier can be used by the first electronic device to acquire the first snapshot information. The first instruction may include a first session identification.

With reference to the second aspect, in some embodiments, the second electronic device is installed with the second application. The second application is used to provide the first service. The first connection information also includes an application identifier of the second application. The first instruction is used to instruct the second electronic device to run the second application to provide the first service.

With reference to the second aspect, in some embodiments, the first electronic device receives and stores the first activity information sent by the second electronic device, and the first activity information is included in the first snapshot information. The first activity information includes data for instructing the user interface of the application providing the first service to present content at the first moment during the process of the second electronic device providing the first service. The first moment is any moment in the process of providing the first service by the second electronic device.

With reference to the second aspect, in some embodiments, after the first electronic device obtains the first snapshot information of the first session, it may send the first activity information in the first snapshot information to the second electronic device. The first activity information is used to determine the presentation content of the user interface applied by the second electronic device at the initial moment of running the application providing the first service.

In combination with the second aspect, in some embodiments, when the first electronic device calls other electronic devices to provide a service through an application for the first time, the first electronic device can check whether it calls other electronic devices through other applications to provide a service related to the above-mentioned one. Services of the same type. If found, the first electronic device may recommend calling other electronic devices through other applications to provide a connection relationship corresponding to a service of the same type as the above-mentioned service.

Specifically, the first electronic device is further installed with a fourth application. The first electronic device receives the third instruction, and the third instruction is used to instruct the first electronic device to call the electronic device to provide the first service through the fourth application. The first electronic device searches for the connection information including the identifier of the first service from the snapshot information of one session or multiple sessions, and obtains the first connection information. The session or sessions are created by the first electronic device. The first electronic device sends a fourth instruction to the second electronic device according to the first connection information, creates a second session, and stores second snapshot information of the second session. The second snapshot information may be stored in the storage sandbox of the second session. The fourth instruction is used to instruct the second electronic device to provide the first service. The second session is a communication performed by the first electronic device calling one or more electronic devices to provide one or more services through the fourth application. The second snapshot information includes second connection information, and the second connection information includes a device identifier of the second electronic device and an identifier of the first service.

With reference to the second aspect, in some embodiments, after the first electronic device obtains the first snapshot information of the first session, it may determine whether the second electronic device is available. If it is determined that the second electronic device is unavailable, the first electronic device selects a third electronic device from the searched multiple electronic devices, and invokes the third electronic device to provide the first service. The third electronic device is an electronic device that is available among the plurality of electronic devices and can provide the first service.

With reference to the second aspect, in some embodiments, the first electronic device may select the third electronic device from the searched multiple electronic devices according to the first rule. The third electronic device is an electronic device that is available among the searched multiple electronic devices, can provide the first service, and has the highest priority. The first rule includes: the priority of the electronic device with the same device account and the same device type as the first electronic device> the priority of the electronic device with the same device account as the first electronic device but a different device type> the priority of the electronic device with the same device account as the first electronic device Priorities of electronic devices with different device accounts but the same device type>priorities of electronic devices with different device accounts and different device types from the first electronic device.

With reference to the second aspect, in some embodiments, there are multiple electronic devices with the same device account and different device types of the first electronic device, or there are multiple electronic devices with different device accounts and different device types from the first electronic device . The first rule further includes: among multiple electronic devices of different device types, the priority of the electronic device is determined by the privacy degree of the electronic device, and the lower the privacy degree of the electronic device, the higher the priority of the electronic device. The privacy of electronic devices includes: TV = speaker < tablet < watch = mobile phone.

With reference to the second aspect, in some embodiments, after the first electronic device obtains the first snapshot information of the first session, it may display options of the second electronic device on the user interface according to the first connection information in the first snapshot information. The first electronic device detects a first user operation acting on an option of the second electronic device, and the first user operation is used to trigger the first electronic device to send a first instruction to the second electronic device.

The aforementioned second electronic device options may be displayed in the user interface in different display states. Specifically, the first electronic device may determine whether the second electronic device is available. If it is determined that the second electronic device is available, the first electronic device may display the second electronic device option as the first state. The first state is used to indicate that the second electronic device is available. If it is determined that the second electronic device is unavailable, the first electronic device may display the options of the second electronic device as a second state. The second state is used to indicate that the second electronic device is unavailable.

With reference to the second aspect, in some embodiments, the first snapshot information further includes third connection information, the third connection information includes source device information and destination device information, and the source device information in the third connection information includes the information of the second electronic device. The device identifier, the identifier of the first service, and the destination device information in the third connection information include the device identifier of the fourth electronic device and the identifier of the second service. The fourth electronic device is installed with an application for providing the second service. After the first electronic device obtains the first snapshot information of the first session, it may send the third connection information in the first snapshot information to the second electronic device. The third connection information enables the second electronic device to send a fifth instruction to the fourth electronic device through the application providing the first service, where the fifth instruction is used to instruct the fourth electronic device to provide the second service.

The above method can quickly establish the connection relationship between multiple electronic devices. Users do not need to operate on multiple electronic devices separately, which not only simplifies the user operations when multiple electronic devices are connected, but also facilitates users to call their accustomed electronic devices and enter familiar application scenarios faster, improving the user experience. user experience.

With reference to the second aspect, in some embodiments, the first snapshot information further includes fourth connection information. The fourth connection information includes source device information and destination device information. The source device information in the fourth connection information includes the device identifier of the second electronic device and the identifier of the first service. The destination device information in the fourth connection information includes the first electronic The device identifier of the device and the application identifier of the first application. After the first electronic device obtains the first snapshot information of the first session, it may send the fourth connection information to the second electronic device. The fourth connection information enables the second electronic device to send a seventh instruction to the first electronic device through the application providing the first service, and the seventh instruction is used to instruct the first electronic device to invoke the first application. The first electronic device receives the seventh instruction, compares its own first-level identification with the second-level identification of the second electronic device, determines that the first-level identification is lower than the second-level identification, and the first electronic device refuses to respond to the seventh instruction. An electronic device in a session has a hierarchical identification, and the hierarchical identification of an electronic device is determined by the connection distance between an electronic device and the electronic device that creates a session, and the farther the connection distance from the electronic device that creates a session, The higher the level identification of an electronic device is.

In a third aspect, the present application provides an application-based method for establishing a device connection relationship. Wherein, the second electronic device may receive the first instruction from the first electronic device. The second electronic device is installed with an application for providing the first service. The first instruction is used to instruct the second electronic device to provide the first service. The first instruction is sent by the first electronic device according to the first connection information. The first connection information includes the device identifier of the second electronic device and the service identifier of the first service. The first connection information is included in the first snapshot information of the first session. The first electronic device is installed with a first application. The first session is a communication in which the first electronic device invokes one or more electronic devices to provide one or more services through the first application. According to the first instruction, the second electronic device may provide the first service.

With reference to the third aspect, in some embodiments, the second electronic device is installed with the second application. The second application is used to provide the first service. The above-mentioned first connection information also includes the application identifier of the second application. The first instruction may be used to instruct the second electronic device to run the second application to provide the first service. When receiving the second instruction, the second electronic device can run the second application to provide the first service.

With reference to the third aspect, in some embodiments, the second electronic device is installed with the second application and the third application. Both the second application and the third application are used to provide the first service. After receiving the first instruction, the second electronic device can determine whether the second application is available. If it is determined that the second application is available, the second electronic device runs the second application to provide the first service. If it is determined that the second application is unavailable, the second electronic device determines whether the third application is available. If it is determined that the third application is available, the second electronic device runs the third application to provide the first service.

With reference to the third aspect, in some embodiments, after the second electronic device provides the first service, it may send the first activity information of the application providing the first service (such as the second application or the third application) to the first electronic device . Wherein, the first activity information includes data for instructing the user interface of the application providing the first service to present content at the first moment during the process of providing the first service. The first moment is any moment when the first service is provided.

With reference to the third aspect, in some embodiments, in addition to the above first instruction, the second electronic device may also receive the first activity information sent by the first electronic device. According to the first activity information, the second electronic device may determine the presentation content of the user interface of the application at the initial moment of running the application for providing the first service.

With reference to the third aspect, in some embodiments, in addition to the above first instruction, the second electronic device may also receive third connection information sent by the first electronic device. The third connection information includes source device information and destination device information. The source device information in the third connection information includes the device identifier of the second electronic device and the identifier of the first service. The destination device information in the third connection information includes the device identifier of the fourth electronic device and the identifier of the second service. The fourth electronic device is installed with an application for providing the second service. According to the third connection information, the second electronic device may use the application providing the first service to send the fifth instruction to the fourth electronic device. The fifth instruction is used to instruct the third electronic device to provide the second service.

With reference to the third aspect, in some embodiments, the second electronic device receives a sixth instruction, and the sixth instruction is used to instruct the second electronic device to call the fourth electronic device to provide the second service through the running application providing the first service. The second electronic device sends the fifth instruction to the fourth electronic device according to the sixth instruction. If the second electronic device determines that the way to open the application providing the first service is active opening, the second electronic device creates a third session and stores the third snapshot information of the third session; A user operation on an application for opening the application, and the application is opened. The third session is a communication in which the second electronic device invokes one or more electronic devices to provide one or more services through the application providing the first service, and the third snapshot information includes third connection information. If the second electronic device determines that the mode of opening the application providing the first service is passive opening, the second electronic device sends the third connection information to the first electronic device. Passive opening means that the electronic device receives an invocation instruction for providing a service from another electronic device, and starts an application for providing the service.

The foregoing embodiments can quickly establish connection relationships among multiple electronic devices. Users do not need to operate on multiple electronic devices separately, which not only simplifies the user operations when multiple electronic devices are connected, but also facilitates users to call their accustomed electronic devices and enter familiar application scenarios faster, improving the user experience. user experience.

In a fourth aspect, the present application provides a communication system. The communication system includes at least a first electronic device and a second electronic device. Wherein, the first electronic device and the second electronic device cooperate to implement any possible implementation manner in the first aspect.

In a fifth aspect, the present application provides an electronic device. The electronic equipment includes: a communication device, a memory, and a processor. The memory can be used to store computer programs, and the processor can be used to invoke computer programs, so that the electronic device executes any possible implementation manner as in the second aspect or the third aspect.

In a sixth aspect, the present application provides a chip, the chip is applied to an electronic device, the chip includes one or more processors, and the processor is used to invoke computer instructions so that the electronic device executes the electronic device as described in the first aspect or the second aspect. any possible implementation.

In the seventh aspect, the present application provides a computer program product containing instructions, which is characterized in that, when the above-mentioned computer program product is run on an electronic device, the electronic device is made to execute any of the possible steps in the first aspect or the second aspect. Method to realize.

In an eighth aspect, the present application provides a computer-readable storage medium, including instructions, which is characterized in that, when the above-mentioned instructions are run on an electronic device, the electronic device is made to perform any possible operation according to the first aspect or the second aspect. Method to realize.

Understandably, the communication system provided by the fourth aspect, the electronic device provided by the fifth aspect, the chip provided by the sixth aspect, the computer program product provided by the seventh aspect, and the computer-readable storage medium provided by the eighth aspect are all used for Execute the method provided in the embodiment of this application. Therefore, the beneficial effects that it can achieve can refer to the beneficial effects in the corresponding method, and will not be repeated here.

Description of drawings

FIG. 1 is a schematic structural diagram of a distributed application provided by an embodiment of the present application;

FIG. 2A-FIG. 2I are schematic diagrams of scenarios in which some electronic devices establish connection relationships provided by the embodiments of the present application;

FIG. 3A-FIG. 3F are schematic diagrams of other electronic devices establishing connection relationships provided by the embodiments of the present application;

FIG. 4A-FIG. 4D are schematic diagrams of other electronic devices establishing connection relationships provided by the embodiments of the present application;

5A to 5D are schematic diagrams of other electronic devices establishing connection relationships provided by the embodiments of the present application;

6 to 10 are schematic structural diagrams of some communication systems provided by the embodiments of the present application;

FIG. 11 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and in detail below in conjunction with the accompanying drawings. Among them, in the description of the embodiments of this application, unless otherwise specified, "/" means or means, for example, A/B can mean A or B; "and/or" in the text is only a description of associated objects The association relationship indicates that there may be three kinds of relationships, for example, A and/or B, which may indicate: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiment of the present application , "plurality" means two or more than two.

Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as implying or implying relative importance or implicitly specifying the quantity of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present application, unless otherwise specified, the "multiple" The meaning is two or more.

The present application provides an application-based method for establishing a device connection relationship. In this method, the electronic device 100 may store connection information between the electronic device 100 and the other electronic device after first establishing a communication connection with the other electronic device through the application A and requesting the other electronic device to work together to realize the application scenario A. The connection information may include the device ID of the electronic device 100 during the collaborative work process, the device IDs of the electronic devices connected to the electronic device 100 , and the application IDs invoked by the electronic devices connected to the electronic device 100 during the collaborative work process. When the electronic device 100 requests the electronic device to work cooperatively through the application A again to realize the above-mentioned application scenario A, the electronic device 100 can establish a communication connection with the historical coordination device according to the above-mentioned connection information stored by itself, and instruct the historical coordination device to call the application that was implemented in the past. The respective applications invoked in scenario A. The above-mentioned historical collaboration device is the above-mentioned electronic device that has established a communication connection with the electronic device 100 and worked cooperatively to implement the application scenario A. It can be seen that the above method can quickly establish the connection relationship between multiple electronic devices. The user may only need to perform operations on the electronic device 100 instead of performing operations on multiple electronic devices to establish connection relationships among the multiple electronic devices. This simplifies user operations when a plurality of electronic devices establish a connection.

The communication connection established between the electronic device 100 and other electronic devices may be, for example, a short-distance communication connection such as a wireless fidelity (Wi-Fi) network communication connection. The embodiment of the present application does not limit the specific manner of the above-mentioned communication connection.

Cooperative work of multiple electronic devices may mean that a communication connection is established between the multiple electronic devices, and the multiple electronic devices communicate, exchange data and instructions, and perform different functions respectively. The scenario composed of the above-mentioned multiple electronic devices respectively performing different functions may be an application scenario implemented by the multiple electronic devices working together. Exemplarily, a learning application is installed in the mobile phone. This learning app can be used to provide answers to course questions. An application that plays lesson videos is installed on the TV. Note-taking and quiz-answering apps are installed on the tablet. The mobile phone can establish a communication connection with the TV and the tablet through the learning application. The phone can instruct the TV to call up an app that plays lesson videos. The phone can instruct the tablet to call apps for note-taking and answering questions. Then, students can watch lecture videos on TV and take notes and complete course exercises on the tablet. Parents can check the completion results of students' course exercises through the learning application in the mobile phone. It can be seen that the above-mentioned mobile phones, TVs, and tablets can work together to realize the application scenarios in which students watch course videos, record notes, complete after-school exercises, and parents check the after-school exercises completed by students.

It should be noted that, in the above method for establishing a device connection relationship, the electronic device 100 may be a master device. The master device can be used to store connection information between the master device and other electronic devices during the collaborative work process. In addition, the master device can be used to establish a connection relationship between multiple electronic devices according to the connection information stored by itself. A specific implementation manner for the master device to establish a connection relationship between multiple electronic devices will be described in detail in subsequent embodiments, and will not be described here.

In some embodiments, during the collaborative work between the electronic device 100 and other electronic devices to implement the above application scenario A, the application A invoked by the electronic device 100 and the applications invoked by other electronic devices may belong to the same distributed application. Alternatively, these applications may not belong to the same distributed application.

The embodiments of the present application relate to distributed applications. In order to facilitate the understanding of the method provided by the present application, related concepts are firstly introduced below.

1. Distributed application and service

A distributed application can provide multiple services. Services may also be referred to as capabilities. A program installation package of a distributed application may include program installation packages of these multiple services. The program installation packages of these multiple services can be respectively installed in multiple different electronic devices. Wherein, one electronic device can install program installation packages of one or more of these multiple services. The program entity in the program installation package of the one or several services may be called an application in the one electronic device. That is to say, a distributed application can support installation in units of services. Multiple services in a distributed application can be distributed among multiple different electronic devices. These multiple different electronic devices can work together, and respectively call various services in this distributed application to jointly complete a task and realize an application scenario.

The following is an example of learning distributed applications in the course to introduce the relationship between the above-mentioned distributed applications and services.

As shown in Figure 1, the course learning distributed application can provide the following multiple services: exercise answer providing service, course video playing service, note taking and answering service. Wherein, the mobile phone may include a program installation package that provides services for answering exercises. The TV may include a program installation package for the course video playback service. The tablet may include program installation packages for note-taking and answering services. In a possible application scenario, the mobile phone may be a parent's mobile phone. In response to the parent's user operation, the mobile phone can instruct the TV to call the course video playing service to play the course video. Moreover, the mobile phone can also instruct the tablet to call the note-taking and question-answering service to display a user interface for taking notes and answering questions. Among them, students can watch the course videos played on TV, and record notes and complete course exercises on the tablet 200 . In addition, the tablet 200 can send the completed course exercises to the mobile phone. The mobile phone can invoke the exercise answer providing service to check the completion results of the above-mentioned course exercises.

It can be seen from Figure 1 that mobile phones, TVs, and tablets can work together to call various services in the course learning distributed application to enable students to watch course videos, record notes, complete after-school exercises, and parents to check the lessons completed by students. The application scenario of the post-exercise.

A program installation package of a distributed application may have an application package name. The program installation package of each service may have a service package name. In a possible implementation, when an electronic device downloads a program installation package of a service in a distributed application, the storage path of the program installation package of this service can be: .../<application package name>/<service package name>/…. Exemplarily, the application package name of the course learning distributed application shown in FIG. 1 may be com.example.study. The service package name of the note-taking and answering service can be StudyNotepadServiceAbility. The storage path of the program installation package of the note-taking and answering service in the tablet can be: …/<com.example.study>/<StudyNotepadServiceAbility>/…. Among them, the storage path of multiple services under the distributed application of this course can be: …/<com.example.study>/…. The embodiment of the present application does not limit the specific names of the above-mentioned application package name and service package name.

FIG. 1 is only an example of a distributed application and its corresponding service provided by this application, which should not limit this application.

In some embodiments, an electronic device installed with a program installation package of a service may include an icon corresponding to the service. The electronic device can invoke this one service in response to a user operation acting on the icon. That is, the above-mentioned icon may correspond to an entry for invoking a service corresponding to the icon. The user may touch an icon corresponding to a service to trigger the electronic device to call the service. Not limited to the form of the above icon, the electronic device may also provide the user with an entry to call the service in other forms.

Optionally, the electronic device installed with the program installation package of a service may invoke the service in response to an instruction of the electronic device working with it. That is, the electronic device installed with the program installation package of a service may not have an entry for the user to directly call the service. For example, in the course learning distributed application shown in FIG. 1 . The program installation package of the course video playback service is included in the TV. But there is no entrance for the user to directly call the course video playback service in the TV. In response to relevant user operations, the mobile phone may instruct the TV to call the course video playing service (that is, the TV runs the program corresponding to the course video playing service).

The application in the subsequent embodiments of this application may refer to a program entity that provides various services in a distributed application, or may refer to a traditional application, such as

system,

Camera application, gallery application, video application, etc. in the system such as system. For example, in the course learning distributed application shown in Figure 1, the mobile phone is installed with an application for providing answers to exercises. The exercise answer providing application may provide exercise answer providing services. A course video playback application is installed on the TV. The course video playing application can provide a course video playing service. Note-taking and answering apps are installed in the tablet. The note-taking and answering application can provide note-taking and answering services. Calling an application by an electronic device is calling a service that the application can provide. For example, calling the course video playing application by the electronic device may mean that the electronic device calls the course video playing service. The above-mentioned exercise answer providing application, the above-mentioned course video playing application, and the above-mentioned note-taking and question-answering application all belong to the same distributed application (distributed application for course learning), and may have the same application package name (such as com.example.study). A traditional application can also provide multiple services. Compared with distributed applications, a program installation package that provides multiple services in a traditional application can be installed on an electronic device as a whole. That is to say, the above-mentioned traditional applications do not support installation in units of services. The multiple services that can be provided by the above conventional applications do not have the ability to be distributed on different electronic devices. A traditional application can have a corresponding application package name.

Subsequent embodiments of the present application specifically use a distributed application as an example to introduce the method for establishing a device connection relationship provided in the embodiments of the present application.

2. Conversation

In some embodiments, there may be a master device among multiple electronic devices that work together to implement an application scenario. The master device can be used to establish a connection relationship between the plurality of electronic devices when working together. Requested by the master device, the electronic devices that work together with the master device are sub-devices. For example, in the scenario where a mobile phone, a TV, and a tablet work together as shown in FIG. 1 . A mobile phone can be the master device. Both TV and tablet can be child devices. The mobile phone can establish a communication connection with the TV, and instruct the TV to call the course video playback service. The mobile phone can establish a communication connection with the tablet, and instruct the tablet to call note-taking and question-answering services.

A session can mean that the above-mentioned main device and sub-device are connected to exchange data during the process of cooperative work. A session can have a session ID. The session ID of a session can be determined by the device account (such as Huawei ID) of the main device and the application ID of the application running on the main device that requests the sub-device to work together. The above-mentioned device account can uniquely identify the user logged in on the master device. In a possible implementation manner, the master device runs a program corresponding to application A to request the sub-devices to work together. The above application identifier may be the application package name of the above application A. In another possible implementation manner, the master device runs a program corresponding to service A under application A to request the sub-devices to work together. The above application identifier is still the application package name of application A. For example, an application that runs on a mobile phone and requests sub-devices (such as a TV, a tablet) to work together is a distributed application for course learning. The application identifier may be an application package name (such as com.example.study) of the course learning distributed application. The embodiment of the present application does not limit the specific content of the above-mentioned device account and application identifier.

In some embodiments, when the master device invokes an application to request the sub-device to work together, it may check whether a corresponding session identifier is stored according to the above-mentioned device account and application identifier. If there is no corresponding session ID, the main device can establish a session, and determine the session ID of the session according to the device account and the application ID. When the main device establishes a connection with each sub-device, the main device may pass the session identifier of this session to each sub-device. In the process of working together to implement an application scenario, both the main device and the sub-device can store the same session identifier. The communication between the main device and the sub-device is carried out under the session indicated by the above-mentioned same session identifier during cooperative work.

The process of establishing a session by the master device may be a process of determining a session identifier of the session and assigning a storage sandbox to the session. The storage sandbox can be used to store the data interacted between the main device and the sub-device in this session, and the connection information between the main device and the sub-device.

If there is a corresponding session identifier, the main device may transfer the found session identifier to each sub-device. The data exchanged between the main device and the sub-device under the session corresponding to the session identifier can be stored in the storage sandbox of the session. In some embodiments, when the corresponding session identifier is found, the main device can establish a connection with the corresponding sub-device according to the connection information between devices stored in the storage sandbox of the session. That is to say, when the main device and the sub-device have established a connection to realize an application scenario, if the main device needs to request other electronic devices to work together to realize this application scenario, the main device can The connection information between the devices stored in the box can quickly establish a connection with the sub-device that has been connected. This greatly simplifies user operations for establishing connections between devices.

The life cycle of a session begins when the master device calls an application for the first time to request the sub-device to work together. Wherein, when the main device calls an application for the first time to request the sub-device to work together, the main device cannot find the session ID corresponding to the device account and the application ID. The master device can clean up sessions periodically or irregularly. If the session ID of a session and the storage sandbox of the session are deleted, the session ends. In a possible implementation manner, the master device may clean up the session according to a least recently used (LRU) algorithm. For a specific implementation method, reference may be made to the implementation process of the LRU algorithm in the prior art. The embodiment of the present application does not limit the method for the master device to clear the session.

Wherein, in the case that a session has been established, if one or more electronic devices in the main device and each sub-device exits the application invoked in the session, the session still exists. That is, the master device can still store the session identifier of this session and store the data in the sandbox. For example, in the course learning distributed application shown in FIG. 1 , if the TV finishes invoking the course video playing service, the course video will no longer be played. Using the above courses to learn distributed applications, the sessions established when mobile phones work with TVs and tablets still exist.

In some embodiments, in the process of cooperating to complete an application scenario, the main device and the sub-device respectively invoke services belonging to a distributed application. The master device can pass the session identification of the same session to each sub-device when the cooperative work is connected with the sub-device. In some other embodiments, in the process of cooperating to complete an application scenario, the services invoked by the main device and the sub-device do not belong to the same distributed application. The main device can still pass the session identifier of the same session to each sub-device when it is connected to the sub-device in this cooperative work. The session identifier of the same session can be determined by the device account and application identifier on the master device during the collaborative work. For example, in the course learning distributed application shown in FIG. 1 , the course video playback service in the TV is unavailable (for example, the program installation package of the course video playback service has been cleaned up on the TV, and the program installation package cannot be obtained temporarily). When the mobile phone instructs the TV to play the course video, the TV can call other applications (such as the Huawei video application) to play the course video. Wherein, the mobile phone may transmit the session identifier to the TV. The session identifier can be determined by the device account logged in on the mobile phone and the application identifier of the course learning distributed application.

3. Snapshot information (snapshot)

Snapshot information is a copy of the specified data. Snapshot information can be used for data backup and recovery. The snapshot information associated with a session may include connection information between electronic devices in this session. The above connection information may include a device identifier of the source device, a device identifier of the destination device, an application identifier of the called application on the destination device, and a service identifier (optional) of a service in the called application on the destination device. The aforementioned source device is an electronic device that instructs other electronic devices to invoke related applications. The above-mentioned target device is an electronic device that receives a call instruction to call a related application. For example, in the scenario where the mobile phone instructs the TV to call the course video playing application, the mobile phone is the source device and the TV is the destination device. Optionally, the above connection information may also include information such as an application identifier of an application on the source device that requests other electronic devices to work together. This embodiment of the present application does not limit it.

In some embodiments, the snapshot information associated with a session may further include activity (activity) information when each electronic device in this session invokes a corresponding application. Exemplarily, in the scenario where the mobile phone instructs the TV to call the course video playing application, the above activity information may include the course identification and playing progress of the course video played by the TV. The TV can send this activity information to the mobile phone. The phone can store this activity information in the storage sandbox of the session associated with it. In the scenario where the mobile phone instructs the tablet to call the note-taking and answering applications, the above activity information may include recorded note data and answering data. The tablet can send the activity information to the mobile phone. The phone can store this activity information in the storage sandbox of the session associated with it.

Snapshot information associated with a session may be stored in the master device that established the session. That is, the snapshot information associated with the session can be stored in the storage sandbox allocated for the session in the master device.

The master device can periodically record snapshot information associated with a session. For example, the master device may acquire snapshot information associated with a session every minute, and use the currently acquired snapshot information to update the latest acquired snapshot information in the storage sandbox. Optionally, the master device may record snapshot information associated with a session in response to a user operation. For example, in the scenario where the mobile phone instructs the TV to call the course video playback application, in response to the user operation on the TV for exiting the course video playback, the TV can send the course identification and playback progress of the course video to the master device. The main device may store the above-mentioned course identification and playing progress of playing the course video in the storage sandbox of the corresponding session. The embodiment of the present application does not limit the user operation that triggers the master device to record the snapshot information.

4. Storage sandbox

A storage sandbox is a storage area of memory in an electronic device. The electronic device may assign a storage sandbox to one of the above sessions. The storage sandbox can be used to store snapshot information associated with a session (such as connection information between electronic devices in this session, activity information when each electronic device calls a corresponding application in this session).

The location of a storage sandbox can be determined by the device account of the electronic device (such as a Huawei account), the application identifier invoked by the electronic device in a session, and the session identifier of the session. Exemplarily, a storage sandbox location may be: .../data/user/<device account>/<application ID>/<session ID>/.... The above application identification may be the application package name of the application. The storage sandbox for each session is isolated. The electronic device may obtain snapshot information associated with a session according to the location of the storage sandbox of the session.

In the course learning distributed application shown in Figure 1, the mobile phone can instruct the TV to call the course video playback service through the installed exercise answer providing application, and instruct the tablet to call the note-taking and answering service. The phone can create sessions. The session is a session for learning the distributed application based on the course when the mobile phone logs into the current device account. The phone can assign a storage sandbox to this session. The location of the storage sandbox can be: .../data/user/<device account of the mobile phone>/<application package name of the course learning distributed application>/<session identifier>/.... The phone can pass the session ID to the TV and the phone. Wherein, the television may assign a storage sandbox to the session corresponding to the session identifier. The location of the storage sandbox in the TV may be: .../data/user/<device account of the TV>/<application package name of the distributed application for course learning>/<session ID>/.... The TV can store data such as course identification and playback progress of the course video in the storage sandbox of the session on the TV. The mobile phone may assign a storage sandbox to the session corresponding to the session identifier. The location of the storage sandbox in the mobile phone can be: .../data/user/<device account of the mobile phone>/<application package name of the course learning distributed application>/<session ID>/.... The mobile phone can store data such as note data and answer data in the storage sandbox of the session in the mobile phone.

Based on the distributed application for course learning shown in FIG. 1 , a scenario of establishing a device connection relationship provided by the embodiment of the present application is introduced below.

FIG. 2A to FIG. 2I exemplarily show a schematic diagram of a scenario of establishing a device connection relationship.

As shown in FIG. 2A , an electronic device 100 (such as a mobile phone) may display a user interface 210 . The user interface 210 displays a page on which application icons are placed. The page may include multiple application icons (for example, a clock application icon, a file management application icon, a Huawei video application icon, a learning application icon 211, etc.). A page indicator may also be displayed below the plurality of application icons to indicate the positional relationship between the currently displayed page and other pages. Below the page indicators are multiple tray icons (eg, camera app icon, contacts app icon, dialer app icon, messaging app icon). The tray icon remains displayed across page switches. The embodiment of the present application does not limit the content displayed on the user interface 410 .

The learning application icon 211 is an application icon indicating a course learning distributed application. In some embodiments, the electronic device 100 includes a program installation package that provides a service for answering exercises. Then, in response to a user operation acting on the learning application icon 211, the electronic device 100 may display a user interface including answers to exercises.

In some embodiments, in addition to the program installation package of the above-mentioned exercise answer providing service, the program installation package of the course learning distributed application in the electronic device 100 may also include a device connection program. The above-mentioned device connection program can be used for the electronic device 100 to establish a communication connection with other electronic devices, and instruct other electronic devices to call the services provided by the course learning distributed application (such as course video playing service, note taking and answering service). Optionally, the electronic device 100 may also include a program installation package for course video playback services, and a program installation package for note-taking and question-answering services. That is to say, the electronic device 100 can call multiple services such as exercise answer providing service, course video playing service, note taking and question answering service.

Here, the electronic device 100 is specifically introduced by taking multiple services such as the service of providing answers to exercises, the service of playing lecture videos, and the services of taking notes and answering questions as examples.

In response to a user operation acting on the learning application icon 211, the electronic device 100 may display a login interface 220 as shown in FIG. 2B. The login interface 220 may include an account name input box 221 , a password input box 222 , a login control 223 and a registration control 224 . in:

A registration control 224 may be used to register an account. The user can register a new account on the learning application through the registration control 224 .

If an account has been registered, the user can log in to the learning application by entering the account name and password of the registered account.

The account name input box 221 can be used to output the login account name. For example "Zhang San".

The password input box 222 can be used to input the password for login.

The login control 223 can be used to trigger the electronic device 100 to perform a login operation according to the data received in the account name input box 221 and the password input box 222 .

When the login is successful, the electronic device 100 may display a user interface 230 as shown in FIG. 2C . The user interface 230 may include a course selection area 231 , a “Home” control 232 , a “Learning” control 233 , and a “My” control 234 . in:

The “Home” control 232 , the “Learning” control 233 , and the “My” control 234 can be used to indicate the content displayed in the user interface 230 . For example, as shown in FIG. 2C , the “Learning” control 233 is in a selected state, and the content displayed on the user interface 230 may be various courses included in the course selection area 231 . In response to a user operation acting on any one of the “Home” control 232 , the “Learning” control 233 , and the “My” control 234 , the electronic device 100 can switch the content displayed on the user interface 230 .

The course selection area 231 may include course options for the first lesson, course options for the second lesson, course options for the third lesson, course options for the fourth lesson and so on. Optionally, each course selection may include course progress. Example: Lesson 1 course progress is "0% complete". The above-mentioned course progress can be determined by whether the course video is played and whether the after-school exercises are completed.

In response to a user operation acting on the course option of the first lesson, the electronic device 100 may display a user interface 240 as shown in FIG. 2D . The user interface 240 may include a course video area 241 , a video output device selection control 242 , an after-school exercise area 243 , a student learning device selection control 244 , and an exercise answer area 245 . in:

The course video of the first lesson may be included in the course video area 241 . When receiving a user operation for playing the course video, the electronic device 100 may call the course video playing service in the learning application to play the course video of the first lesson.

The video output device selection control 242 can be used for the electronic device 100 to instruct other electronic devices to call the course video playing service.

After-school exercises area 243 may include homework exercises for the first lesson. Optionally, the after-school exercise area 243 may also include a text input box for taking notes. That is, the electronic device 100 can invoke the note-taking and answering service for the user to take notes and complete homework exercises.

The student learning device selection control 244 may be used by the electronic device 100 to instruct other electronic devices to invoke note-taking and quiz-answering services.

The homework answer area 245 may contain the answers to the homework questions after the first lesson.

As shown in FIG. 2D , in response to a user operation acting on the video output device selection control 242 , the electronic device 100 may search for nearby electronic devices that can be used to play videos, and display a user interface 250 as shown in FIG. 2E .

In a possible implementation manner, the electronic device 100 may search for electronic devices that are in the same local area network (such as the same home Wi-Fi) as the electronic device 100 and that can be used to play videos. A device selection area 251 and a search control 252 may be included in the user interface 250 . Wherein, the search control 252 can be used to trigger the electronic device 100 to continue searching for an electronic device that is in the same local area network (such as the same home Wi-Fi) as itself and can be used to play videos. The above search process may be, for example, that the electronic device 100 sends a message to each electronic device in the same home Wi-Fi as itself. This message can be used to ask whether the electronic device has the ability to play video. When receiving the message, the electronic device capable of playing video may send a response message to the electronic device 100 . Then, the electronic device 100 can search for an electronic device that is in the same home Wi-Fi as itself and can be used to play videos. The embodiment of the present application does not limit the method for the electronic device 100 to search for the electronic device.

The device selection area 251 may include device options of one or more electronic devices searched by the electronic device 100 . For example, Zhang San's tablet, Zhang San's TV, Li Si's tablet, Li Si's TV. The embodiment of the present application does not limit the names of the above equipment options. In response to a user operation acting on any one of the above-mentioned device options, the electronic device 100 may be an electronic device corresponding to the device option, and the electronic device 100 may instruct the electronic device to call the course video playing service.

Exemplarily, in response to the user operation acting on the device option "Zhang San's TV", the electronic device 100 may instruct the electronic device 200 (that is, Zhang San's TV) to call the course video playing service.

In some embodiments, the electronic device 200 has already installed the program installation package of the course video playing service. The electronic device 200 can invoke the course video playing service, and display the user interface 260 as shown in FIG. 2F .

As shown in FIG. 2F , a communication connection (such as a Wi-Fi communication connection) is established between the electronic device 100 and the electronic device 200 . The electronic device 200 may display a user interface 260 . The user interface 260 is a user interface for playing a course video (such as the course video of the first lesson). Wherein, the user may instruct the electronic device 200 to play the first lesson video or pause playing the first lesson video by acting on the user operation of the play control or the pause control on the remote control.

In some other embodiments, the electronic device 200 has not yet installed the program installation package of the course video playing service. When receiving an instruction from the electronic device 100 for instructing the electronic device 200 to call the course video playing service, the electronic device 200 may obtain (for example, obtain from a cloud server) the program installation package of the course video playing service. When the program installation package of the course video playing service is acquired, the electronic device 200 may invoke the course video playing service, and display a user interface 260 as shown in FIG. 2F . The embodiment of the present application does not limit the method for the electronic device 200 to obtain the program installation package of the course video playing service.

In some other embodiments, the electronic device 200 has not yet installed the program installation package of the course video playback service, and the electronic device 200 cannot obtain the program installation package of the course video playback service. The electronic device 200 can call other applications that can be used to play videos (such as video player applications, Huawei video applications, etc.) to play course videos. The aforementioned invoked application may be a default one in the electronic device 200, or may be selected by the user. This embodiment of the present application does not limit it. Wherein, the electronic device 200 may obtain (for example, obtain from the electronic device 100 or from a cloud server) the data of the course video to be played.

When receiving the above-mentioned user operation acting on the video output device selection control 242, the electronic device 100 can check whether it has stored the session according to the device account of the electronic device 100 (such as Huawei account) and the application identification of the learning application (such as the application package name). logo. If there is a session corresponding to the session identifier (the session is a session based on the learning application when logging into the current device account on the electronic device 100), the electronic device 100 can find out whether there is a session related to calling the course video playback from the snapshot information associated with the session. Connection information for electronic device connections to the service. Optionally, the electronic device 100 may also find, from the snapshot information associated with the session, whether there is connection information connected to the electronic device calling the application for playing the video.

If there is no session corresponding to the session identifier, the electronic device 100 may establish a session. The session ID of the session is determined according to the device account of the electronic device 100 and the application ID of the learning application. The electronic device 100 may assign a storage sandbox to the session.

During the above-mentioned process in which the electronic device 100 is connected to the electronic device 200 and the electronic device 100 instructs the electronic device 200 to play the course video, the electronic device 100 may store the connection information between the electronic device 100 and the electronic device 200 in the storage sandbox of the session. Optionally, the electronic device 100 may also store the course identification and playing progress of the course video played by the electronic device 200 at a moment in the storage sandbox of the session.

The foregoing situation that there is no session corresponding to the session identifier may include: the electronic device 100 has never created a session corresponding to the session identifier. Or, the electronic device 100 once created a session corresponding to the session identifier. However, the session has been deleted. The deletion of the above session may indicate that the session identifier corresponding to the above session and the storage sandbox of the session are deleted.

It can be seen that FIG. 2D to FIG. 2F exemplarily show schematic diagrams of scenarios where the electronic device 100 establishes a session.

As shown in FIG. 2G , in response to a user operation acting on the student learning device selection control 244 , the electronic device 100 can search for nearby electronic devices that can provide note-taking and answering services, and display a user interface 270 as shown in FIG. 2H .

For the electronic device 100 to search for nearby electronic devices that can be used to provide note-taking and answering services, refer to the method for the electronic device 100 to search for electronic devices that can be used to play videos in the foregoing embodiments. I won't go into details here.

User interface 270 may include a learning device selection area 271 . The learning device selection area 271 may include device options of one or more electronic devices searched by the electronic device 100 . For example, Zhang San's tablet, Zhang San's TV, Li Si's tablet, Li Si's TV. The embodiment of the present application does not limit the names of the above equipment options. In response to a user operation acting on any one of the above-mentioned device options, the electronic device 100 can be the electronic device corresponding to the device option, and the electronic device 100 can instruct the electronic device to call the note-taking and answering service.

Exemplarily, in response to the user operation acting on the device option "Zhang San's tablet", the electronic device 100 may instruct the electronic device 300 (that is, Zhang San's tablet) to call the note-taking and answering service, and display the user's Interface 280.

As shown in FIG. 2I , a communication connection (such as a Wi-Fi communication connection) is established between the electronic device 100 and the electronic device 300 . The electronic device 300 may display the user interface 280 . The user interface 280 may include course materials, text input boxes for taking notes, homework exercises and so on. That is, the user can take notes and complete homework exercises on the electronic device 300 .

When receiving the above-mentioned user operation acting on the student learning device selection control 244, the electronic device 100 can check whether it has stored sessions according to the device account of the electronic device 100 (such as Huawei account) and the application identification of the learning application (such as the application package name). logo. In the foregoing embodiments shown in FIG. 2D to FIG. 2F , the electronic device 100 establishes a session. The session is a session based on a learning application when logging into the current device account on the electronic device 100 . Then, the electronic device 100 can find the session corresponding to the session identifier. The electronic device 100 may find, from the snapshot information associated with the session, whether there is connection information connected to the electronic device calling the note-taking and quiz-answering service.

If there is connection information about the electronic device calling the note-taking and answering service, the electronic device 100 may connect to the electronic device indicated by the connection information, and instruct the electronic device to call the note-taking and answering service.

During the above-mentioned process in which the electronic device 100 is connected to the electronic device 300, and the electronic device 100 instructs the electronic device 300 to call the note-taking and answering service, the electronic device 100 may store the connection information between the electronic device 100 and the electronic device 300 in the storage sandbox of the session. in the box. Optionally, the electronic device 100 may also store notes and answer data received by the electronic device 300 in the session sandbox.

It can be seen that FIG. 2G to FIG. 2I exemplarily show schematic diagrams of scenarios where the electronic device 100 does not find the connection information in the snapshot information. The connection information is the connection information between the electronic device 100 and the electronic device that invokes the note-taking and answering service.

The user interfaces shown in FIG. 2A to FIG. 2I are only exemplary illustrations, and should not be construed as limiting the present application.

From the embodiments shown in FIGS. 2A to 2I , it can be seen that when the electronic device 100 first requests other electronic devices to work together to implement application scenario A, it can store connection information between itself and the other electronic devices. The above connection information may include the device identifiers of the other electronic devices, the application identifiers of the applications invoked by the other electronic devices during the collaborative work, and the service identifiers of the services in the applications invoked by the other electronic devices during the collaborative work (optional ). The above connection information may be used by the electronic device 100 to establish a connection with the historical cooperation device when requesting other electronic devices to work together again to realize the application scenario A. And, the electronic device 100 may instruct the historical coordinated devices to call the applications that were respectively called when the application scenario A was implemented. This not only simplifies the user operation when multiple electronic devices are connected, but also facilitates the user to call the electronic device he is accustomed to, and enters the familiar application scene more quickly, thus improving the user experience.

In some embodiments, the electronic device 100 may implement the application scenario A by requesting the application A to cooperate with other electronic devices. If there is a session based on application A when the electronic device 100 logs in the current device account on the electronic device 100, and the snapshot information associated with the session includes the connection information between the electronic device 100 and other electronic devices when the above application scenario A is implemented, The electronic device 100 may restore the connection relationship with the historical coordination device according to the connection information, and instruct the historical coordination device to invoke the applications invoked when the application scenario A was implemented. The aforementioned historical collaboration device may be an electronic device that has established a connection relationship with the electronic device 100 when the application scenario A was implemented.

Taking the example of invoking a learning application when the electronic device 100 establishes a connection relationship with other electronic devices, another scenario of establishing a device connection relationship provided by the embodiment of the present application is introduced below.

FIG. 3A to FIG. 3F exemplarily show another schematic diagram of a scenario for establishing a device connection relationship.

When the learning application is started, the electronic device 100 may display a user interface 230 as shown in FIG. 3A . For the content included in the user interface 230, reference may be made to the introduction of the aforementioned FIG. 2C.

As shown in Figure 3A, the first lesson is 100% complete. 30% of the second course is completed. In response to a user operation acting on the course option of the second lesson, the electronic device 100 may display a user interface 240 as shown in FIG. 3B . For the content contained in the user interface 240, reference may be made to the introduction of the aforementioned FIG. 2D. As shown in FIG. 3B , some exercises in the homework area 243 have been completed. The course progress shown in FIG. 3A and the answer data shown in FIG. 3B may be determined according to the snapshot information associated with session A. The above-mentioned session A is a session based on a learning application when logging into a current device account on the electronic device 100 .

Session A may be established during the process of establishing a device connection relationship shown in FIG. 2A to FIG. 2I. The snapshot information associated with session A may include: the device identifier of the electronic device 100, the device identifier of the electronic device 200, the application identifier of the application to which the electronic device 200 invokes the service, the service identifier of the service invoked by the electronic device 200, and the course played on the electronic device 200. Course display and playback progress of the video, the device ID of the electronic device 300, the application ID of the application to which the electronic device 300 invokes the service, the service ID of the service invoked by the electronic device 300, note data and answer data received on the electronic device 300, etc. Snapshot information associated with session A is stored in a storage sandbox allocated for session A by electronic device 100 .

In response to a user operation acting on the video output device selection control 242 , the electronic device 100 may search from the snapshot information associated with session A whether there is connection information with the electronic device calling the application for playing the video. Optionally, the electronic device 100 can also search for an electronic device that is in the same local area network as itself and can be used to play videos. For a method for the electronic device 100 to search for an electronic device for playing a video, reference may be made to the introduction of the foregoing embodiments.

The electronic device 100 may display the user interface 250 shown in FIG. 3C. A device selection area 251 may be included in the user interface 250 . The device selection area 251 may include a historical collaborative device area 251A and a nearby available device area 251B.

Among them, the device option in the history cooperation device area 251 can be used to remind the user of the electronic device that has been connected with the electronic device 100 and played the course video. The device options in the history collaboration device area 251A are the device options of the electronic device found by the electronic device 100 according to the snapshot information associated with the session A. For example, in the snapshot information associated with session A, the electronic device that invokes an application for playing video (such as an application that provides a course video playback service) includes electronic device 200 (that is, Zhang San's TV). The device options in the historical collaboration device area 251A may include the electronic device 200 .

The device options in the nearby available devices area 251B can be used to prompt the user for electronic devices that the user has not but can connect with the electronic device 100 and play the lesson video. For example, the electronic device 100 can search for an electronic device that is in the same home Wi-Fi as itself, can be used to play videos, and has never played a course video under its instruction. The searched electronic devices may include Zhang San's tablet, Li Si's tablet, and Li Si's TV. The device options in the nearby available device area 251B may include the device options of the above-mentioned searched electronic devices.

As shown in FIG. 3C , in response to the user operation on the device option "Zhang San's TV", the electronic device 100 may instruct the electronic device 200 to call the course video playing service.

As shown in FIG. 3D , in response to a user operation acting on the student learning device selection control 244 , the electronic device 100 may search from the snapshot information associated with session A whether there is connection information with the electronic device calling the note-taking and answering service. Optionally, the electronic device 100 can also search for an electronic device that is in the same local area network as itself and can call note-taking and question-answering services. For the method for the electronic device 100 to search for an electronic device for invoking the note-taking and answering service, reference may be made to the introduction of the foregoing embodiments.

The electronic device 100 may display the user interface 270 shown in FIG. 3E. User interface 270 may include a learning device selection area 271 . The learning device selection area 271 may include a historical learning device area 271A and a nearby learning device area 271B.

Among them, the device option in the historical learning device area 271A can be used to remind the user of the electronic devices that have been connected with the electronic device 100 and invoked note-taking and answering services. The device options in the historical learning device area 271A are the device options of the electronic device that the electronic device 100 finds according to the snapshot information associated with the session A. For example, in the snapshot information associated with session A, the electronic device that invokes the note-taking and answering service includes electronic device 300 (that is, Zhang San's tablet). The device options in the history learning device area 271A may include the electronic device 300 .

The device options in the nearby learning devices area 271B can be used to prompt the user for electronic devices that the user has not but can connect to the electronic device 100 and invoke note-taking and answering services. For example, the electronic device 100 may search for an electronic device that is in the same home Wi-Fi as itself, can call the note-taking and question-answering service, and has not called the note-taking and question-answering service under its instruction. The searched electronic devices may include Zhang San's TV, Li Si's tablet, and Li Si's TV. The device options in the nearby learning device area 271B may include the device options of the above-mentioned searched electronic devices.

As shown in FIG. 3E , in response to the user operation acting on the device option "Zhang San's Tablet", the electronic device 100 may instruct the electronic device 300 to call the note-taking and answering service.

As shown in FIG. 3F , communication connections are established between the electronic device 100 , the electronic device 200 , and the electronic device 300 .

The electronic device 100 may instruct the electronic device 200 to call the course video playing service (or other applications and services for playing videos) to play the course video of the second lesson. When receiving an instruction from the electronic device 100, the electronic device 200 may invoke the course video playing service, and display the user interface 260 as shown in FIG. 3F. The user interface 260 is a user interface for playing course videos.

In a possible implementation manner, the electronic device 100 may determine, from the snapshot information of session A, the course identification and playing progress of the course video when the electronic device 200 is playing the course video. The above course identification and playing progress of the course video may be the data in the snapshot information of session A last updated by the electronic device 100 . The electronic device 100 may send the course identification and playing progress of the course video to the electronic device 200 . The electronic device 200 may start playing the course video corresponding to the above-mentioned course logo from the position indicated by the above-mentioned playing progress in the user interface 260 according to the course logo and the playing progress of the above-mentioned course video. For example, in the latest snapshot information of session A updated by the electronic device 100, the course identification of the course video played by the electronic device 200 is the second course course video. The playback progress of the second lesson video is "3:04". "3:04" may represent the position at 3 minutes and 4 seconds when the video of the second lesson is played. When the electronic device 100 instructs the electronic device 200 to call the course video playing service, it may send the course identification and playing progress of the course video to the electronic device 200 . Then, the electronic device 200 may start playing the second lesson video from the position of 3 minutes and 4 seconds.

In another possible implementation manner, when the electronic device 100 and the electronic device 200 establish the communication connection shown in FIG. 3F , the session identifier of the session A may be transferred to the electronic device 200 . The electronic device 200 may assign a storage sandbox to session A. The storage sandbox of the session A in the electronic device 200 can be used to store data such as the course identification and playing progress of playing the course video. The electronic device 200 may periodically record the course identification and playing progress of playing the course video. Alternatively, the electronic device 200 may record the course identification and playing progress of playing the course video in response to a user operation (for example, a user operation to quit playing the course video). When receiving an instruction from the electronic device 100 for invoking the course video playing service, the electronic device 200 may call the course video playing service. Wherein, the electronic device 200 may play the course video according to the last recorded data in the storage sandbox of session A. For example, the last recorded data in the storage sandbox of session A in the electronic device 200 is: the course ID of the course video played is the course ID of the second lesson video, and the playback progress is "3:04". The electronic device 200 may start playing the second lesson video from the position of 3 minutes and 4 seconds.

As shown in FIG. 3F , the electronic device 100 may instruct the electronic device 300 to call a note-taking and answering service. When receiving an instruction from the electronic device 100, the electronic device 300 invokes the note taking and answering service, and displays the user interface 280 shown in FIG. 3F. The user interface 280 may include course materials, a text input box for taking notes, homework exercises and the like. That is, the user can take notes and complete homework exercises on the electronic device 300 .

As shown in the user interface 280, the electronic device 300 can display the latest received note data and answer data. That is, the user can continue to take notes from the notes that have been recorded, and continue to complete the after-school exercises from the completed after-school exercises. Wherein, the note data and answer data received last time may be sent by the electronic device 100 , or may be obtained by the electronic device 300 from the storage sandbox of session A stored by the electronic device 300 .

The above user interfaces shown in FIGS. 3A to 3F are only exemplary illustrations, and should not be construed as limiting the present application.

It can be known from the above-mentioned embodiments shown in FIG. 3A to FIG. 3F that when the electronic device 100 requests other electronic devices to work together again to realize the application scenario A, the electronic device 100 can obtain a snapshot of the session A established when the application scenario A was implemented. information. According to the snapshot information, the electronic device 100 can restore the connection relationship with the historical coordinated device, and instruct the historical coordinated device to call the applications that were invoked when the application scenario A was implemented. The aforementioned historical collaboration device may be an electronic device that has established a connection relationship with the electronic device 100 when the application scenario A was implemented. In this way, the user can establish a connection relationship between the multiple electronic devices without performing operations on the multiple electronic devices respectively. This not only simplifies the user operation when multiple electronic devices are connected, but also facilitates the user to call the electronic device he is accustomed to, and enters the familiar application scene more quickly, thus improving the user experience.

In addition, the above-mentioned snapshot information of session A may also include the activity information of invoking applications by the electronic device 100 and the historical coordination device when the application scenario A is implemented. According to the activity information, when the electronic device 100 and the history coordination device invoke the application to implement the application scenario A, the state of the application can be restored to the state indicated by the activity information. The activity information is, for example, the playing progress of the video. The electronic device can play the video from the play progress indicated by the activity information. In this way, the electronic device 100 and the historical cooperation device can continue to work together from the position where the cooperation work was interrupted last time, so as to realize the application scenario A.

In some embodiments, the electronic device 100 stores the session identifier of session A and the snapshot information of session A. The above-mentioned snapshot information of session A includes the connection information of the electronic device 100 and the electronic device 200 , and the connection information of the electronic device 100 and the electronic device 300 . The electronic device 100 cooperates with the electronic device 200 and the electronic device 300 to implement the application scenario A. In response to a user operation that triggers the connection of the electronic device 100 with other electronic devices to implement the application scenario A, the electronic device 100 may obtain the snapshot information of A. According to the snapshot information, the electronic device 100 can automatically connect with the electronic device 200 and the electronic device 300 , and instruct the electronic device 200 and the electronic device to call related applications to realize the application scenario A. That is, the electronic device 100 can automatically restore the connection relationship that was once established, so as to improve the efficiency of establishing the connection relationship on the device. The user may not perform the user operation of the selection device shown in FIG. 3C and FIG. 3E . This can simplify user operations during the connection of the aforementioned devices.

In some embodiments, when the electronic device 100 requests to cooperate with other electronic devices through application A to implement application scenario A for the first time, the electronic device 100 may query whether it has performed the same type of cooperative work with other electronic devices through other applications. The aforementioned same type of cooperative work may mean that the electronic device 100 instructs other electronic devices to perform the same action. The above-mentioned same action is, for example, an action of playing a video, an action of editing a document, and so on. The embodiment of the present application does not limit the types of the foregoing actions.

If the electronic device 100 inquires that it has performed the same type of collaborative work with other electronic devices through other applications, the electronic device 100 may recommend the connection relationship of the electronic device during the same type of collaborative work. For example, the electronic device 100 finds out that it requests the electronic device 200 to play the video through the application B by invoking an application for playing the video. When the electronic device 100 requests other electronic devices to play a video through the application A for the first time, the electronic device 100 may prompt the user that the application B has called the video playing application in the electronic device 200 to play the video. In response to the user operation of selecting the above electronic device 200 , the electronic device 100 may call the video playing application in the electronic device 200 through the application A to play the video.

4A to 4D exemplarily show another schematic diagram of a scenario for establishing a device connection relationship.

For the user interface 410 shown in FIG. 4A, reference may be made to the introduction of the user interface 210 in FIG. 2A. The user interface 410 may include a network disk application A icon 411 and a network disk application B icon 412 . That is, the program installation package of the network disk application A and the program installation package of the network disk application B are installed in the electronic device 100 .

In response to a user operation acting on the icon of the network disk application B, the electronic device 100 may display a user interface 420 as shown in FIG. 4B . The user interface 420 may include a document display area 421 , an edit control 422 , a share control 423 , a download control 424 and a delete control 425 . in:

The document display area 421 can be used to display document content.

The share control 423 can be used to share the content of the document in the document display area 421 .

The download control 424 can be used to download the document content in the document display area 421 .

The delete control 425 can be used to delete the document content in the document display area 421 from the cloud server corresponding to the network disk application B.

The edit control 422 can be used to edit document content in the document display area 421 . In response to a user operation acting on the editing control 422, the electronic device 100 may search for nearby electronic devices that can be used to edit the document, and display an option box 426 as shown in FIG. 4C. The options box 426A may include a local edit option 426A, a recommended device selection area 426B, an available device selection area 426C, and a device search control 426D. in:

The local editing option 426A can be used to trigger the electronic device 100 to invoke its own installed application for document editing, and edit the content of the document in the document display area 421 shown in FIG. 4B .

Device options for one or more electronic devices may be included in the available device selection area 426C. The one or more electronic devices may be electronic devices that are searched by the electronic device 100 and have not edited the document under its instruction. Wherein, the electronic device 100 may search among electronic devices that are in the same home Wi-Fi as the electronic device 100 . The embodiment of the present application does not limit the method for the electronic device 100 to search for nearby electronic devices that can be used to edit documents.

The device search control 426D can be used to trigger the electronic device 100 to continue searching for an electronic device that is in the same local area network (such as the same home Wi-Fi) and can be used to edit documents.

Recommended device selection area 426B may include device options for one or more electronic devices. The one or more electronic devices may be the electronic devices that once invoked the application for document editing according to the instruction of the electronic device 100 . Exemplarily, the recommended device selection area 426B includes the device options of the electronic device 300 (ie Zhang San's tablet) and the recommendation information of the electronic device 300 "the last time the network disk application A was used for document editing together with the document editing application A". That is to say, the electronic device 100 once instructed the electronic device 300 to call the document editing application A to edit the document through the network disk application A. The snapshot information of session B is stored in the electronic device 100 . The above-mentioned session B is a session based on the network disk application A when logging in the current device account on the electronic device 100 . The snapshot information of session B may include: the device identifier of the electronic device 100, the device identifier of the electronic device 300, the application identifier of the application invoked by the electronic device 300 (such as the application package name of the document editing application A), the action type of the electronic device 300 (i.e. document editing actions). A collaborative record storage module may exist in the electronic device 100 . The collaboration record storage module can be used to store data that the electronic device 100 instructs other electronic devices to perform different types of collaborative work. These data may include the application identifiers of the applications invoked by the electronic device 100 and the electronic devices that work with it, and the types of actions performed by the electronic devices that work with the electronic device 100 . Then, the relevant data that the electronic device 100 instructs the electronic device 300 to edit the document in the above session B can be stored in the above collaborative record storage module. In response to a user operation acting on the editing control shown in FIG. 4B , the electronic device 100 may search from the collaborative record storage module whether the electronic device 100 has instructed other electronic devices to invoke an application for document editing.

In response to user operations on the device options of the electronic device 300, the electronic device 100 may send the document data in the document display area 421 shown in FIG.

As shown in FIG. 4D , a communication connection is established between the electronic device 100 and the electronic device 300 . When receiving the document data sent by the electronic device 100 and the instruction to call the document editing application A, the electronic device 300 can call the document editing application A and display the user interface 430 . The user interface 430 may include a document editing area 431 , a save control 432 and a cancel control 433 . The document editing area 431 can be used to display document content. The save control 432 can be used to trigger the electronic device 300 to save the edited document content in the document editing area 431 . In response to a user operation acting on the save control 432 , the electronic device 300 can also send the edited document content to the electronic device 100 . The cancel control 433 is used to trigger the electronic device to delete the editing operation on the document content in the document editing area 431 .

It should be noted that when the electronic device 100 instructs the electronic device 300 to call the document editing application A through the network disk application B for the first time, the electronic device 100 may establish a session C and assign a storage sandbox to the session C. The storage sandbox of session C can be used to store the snapshot information of session C. The snapshot information of the session C may include: the device identifier of the electronic device 100, the device identifier of the electronic device 300, the application identifier of the application invoked by the electronic device (such as the application package name of the network disk application B), the action type of the electronic device 300 (i.e. document editing actions). The relevant data that the electronic device 100 instructs the electronic device 300 to edit the document in the above session C can be stored in the above collaborative record storage module.

The above-mentioned user interfaces shown in FIGS. 4A-4D are only exemplary illustrations, and should not be construed as limiting the present application.

It can be seen from the above embodiments shown in FIGS. 4A to 4D that the electronic device 100 can store the data that it instructs other electronic devices to perform different types of collaborative work in the collaborative record storage module. When the electronic device 100 requests other electronic devices to cooperate with each other through the application A, the electronic device 100 can check whether it has performed the same type of coordinated work with other electronic devices through other applications from the above-mentioned cooperation record storage module. If found, the electronic device 100 may request the electronic device indicated by the found connection information through the application A to perform the above-mentioned same type of collaborative work. This can facilitate the user to call the electronic device he is accustomed to to work together, and improve the user experience.

5A to 5D exemplarily show another schematic diagram of a scenario for establishing a device connection relationship.

The electronic device 100 may display a negative one-screen interface 510 as shown in FIG. 5A . The negative one-screen interface 510 may include a search bar 510 , an application bar 512 , a shortcut tool bar 513 and a news bar 514 . in:

The search bar 510 can be used to search for information (such as applications, news, files, etc.) locally on the electronic device 100 or online.

The application bar 512 may include one or more recently used applications of the electronic device 100 (such as code scanning applications, payment code applications, music applications, etc.). For example, the electronic device 100 may display the payment code in response to a user operation acting on the payment code application. The embodiment of the present application does not limit the applications in the application column 512 .

News 514 may be used to display news information. The embodiment of the present application does not limit the news information displayed in the news 514 .

The shortcut toolbar 513 may include a weather control 513A, a courier control 513B, and a collaborative device recommendation control 513C. The weather control 513 can be used to view weather conditions (such as temperature, etc.). The courier control 513B can be used to check the courier information (such as the logistics status of the courier, etc.). The collaborative device recommendation control 513C can be used to acquire information of electronic devices that the application installed in the electronic device 100 can request for collaborative work. The shortcut toolbar 513 may also include more or fewer controls, which is not limited in this embodiment of the present application.

In response to a user operation acting on the collaborative device recommendation control 513C, the electronic device 100 may display a user interface 520 as shown in FIG. 5B . The user interface 520 may include a first recommendation box 521 , a second recommendation box 522 and a third recommendation box 523 . in:

The first recommendation box 521 may be used to display electronic device information requested by the electronic device 100 to work together through a learning application. The first recommendation box 521 may include a learning application icon 521A, a last used device 521B, and a nearby collaboratively recommended device 521C. The learning application in the electronic device 100 can be used to provide the exercise answer providing service in the foregoing embodiments. This learning application provides the application for the answers to the exercises in the course learning distributed application in the foregoing embodiments. The electronic device in the last used device 521B is the historical coordination device in the foregoing embodiment. The electronic device 100 once used the electronic device 521B in the device 521B to call a related application to perform collaborative work by learning the application instruction last time. Exemplarily, the last used device 521B includes an electronic device named "Zhang San's tablet" (namely the electronic device 300 ) and an electronic device named "Zhang San's TV" (namely the electronic device 200 ). The above-mentioned session A is a session based on a learning application when logging into a current device account on the electronic device 100 . Wherein, the electronic device 300 is a learning terminal, which may indicate that the electronic device 100 instructs the electronic device 300 to call an application for taking notes and answering questions. The electronic device 300 provides note-taking and question-answering services, and displays the user interface 280 as shown in FIG. 3F . The electronic device 200 is a video output device, which may indicate that the electronic device 100 instructs the electronic device 200 to play video as a type of collaborative work. The electronic device 200 can invoke an application for playing videos (such as a course video playing application, a Huawei video application), play the course video, and display a user interface 260 as shown in FIG. 3F . The above information of the electronic device 200 and the electronic device 300 may be acquired by the electronic device 100 from the storage sandbox of the session A. For a specific acquisition method, reference may be made to the introduction of the foregoing embodiments, and details are not repeated here.

In some embodiments, the electronic device 100 may determine whether the historical collaboration device is in an available state. For example, when the device identifier of the electronic device 200 is obtained from the storage sandbox of the session 1, the electronic device 100 may send an inquiry message to the electronic device 200 . If a response from the electronic device 200 is received, the electronic device 100 may determine that the electronic device 200 is in an available state. If no response is received from the electronic device 200 (for example, the electronic device 200 is in a power-off state and cannot respond to the inquiry message of the electronic device 100), the electronic device 200 may determine that the electronic device 200 is in an unavailable state. The embodiment of the present application does not limit the implementation manner for the electronic device 100 to determine whether the historical collaboration device is in an available state.

The electronic device 100 may mark the historical coordination device that is unavailable, so as to prompt the user that the historical coordination device is unavailable. For example, the electronic device 100 determines that the electronic device 200 is in an unavailable state. The electronic device 200 in the last used device 521B may be grayed out. The embodiment of the present application does not limit the method for the electronic device 100 to mark an unavailable historical coordination device.

In some embodiments, when the electronic device 100 requests other electronic devices to work together, it does not specify the application to be invoked in the electronic device. Multiple applications in the electronic device can achieve the same type of collaborative work with the electronic device 100 . The electronic device 100 may display an application selection interface 530 as shown in FIG. 5C . In response to a user operation for selecting any one of the application options in the application selection interface 530 , the electronic device 100 may instruct an electronic device that works with itself to invoke the selected application. Exemplarily, all the electronic devices in the last used device 521B are in an available state. In response to a user operation acting on the last used device 521B shown in FIG. 5B , the electronic device 100 may request the electronic devices in the above used device 521B to perform cooperative work. Wherein, the electronic device 100 may instruct the electronic device 300 to provide note-taking and question answering services, and instruct the electronic device 200 to provide course video playing services. The application in the electronic device 300 for providing note-taking and question-answering services is a note-taking and question-answering application. The applications in the electronic device 200 for providing the course video playing service include a course video playing application and a Huawei video application. The electronic device 100 may display an application selection interface 530 as shown in FIG. 5C . The application selection interface 530 may include an application option area 521 and a determination control 532 . The application option area 521 may include options for the course video playing application and options for the Huawei video application. In response to the user operation of selecting the option of the lesson video playing application and the user operation acting on the determination control 532 , the electronic device 100 may instruct the electronic device 200 to invoke the lesson video playing application. In addition, the electronic device 300 may invoke a note-taking and answering application to provide note-taking and answering services.

In some embodiments, the electronic device 100 may specify an application invoked by the electronic device that works with itself according to the snapshot information of session A. Exemplarily, according to the snapshot information of session A, the electronic device 100 can determine that in the process of cooperating with the electronic device 200 and the electronic device 300, the application invoked by the electronic device 200 is a course video playing application, and the application invoked by the electronic device 300 App for note taking and answering questions. In response to the user operation acting on the last used device 521B, the electronic device 100 may instruct the electronic device 200 to invoke the course video playing application, and instruct the electronic device 300 to invoke the note-taking and answering application.

In some embodiments, the electronic device 100 may respond to a user operation on any electronic device in the last used device 521B, and instruct the electronic device to provide a corresponding service. Exemplarily, in response to user operations on the electronic device named "Zhang San's Tablet" in the last used device 521B, the electronic device 100 may instruct the electronic device named "Zhang San's Tablet" to provide notes and answer questions. Serve. Further, in response to the user operation on the electronic device named "Zhang San's TV" in the last used device 521B, the electronic device 100 may instruct the electronic device named "Zhang San's TV" to provide the course video playing service.

The nearby collaborative recommendation device 521C may include electronic devices searched by the electronic device 100 but not performing collaborative work under the instruction of the electronic device 100 . For example, an electronic device named "Si Li's tablet" and an electronic device named "Si Li's TV". Wherein, according to the above-mentioned snapshot information of session 1, the electronic device 100 may recommend an electronic device of the same type as the historical collaborative device as an electronic device that performs the same type of collaborative work with the historical collaborative device. For example, the electronic device named "Lisi's Tablet" and the electronic device 300 are of the same type. The electronic device 100 may determine the electronic device named "Li Si's Tablet" as the learning terminal. That is, in response to a user operation acting on the nearby collaborative recommendation device 521 , the electronic device 100 may instruct the electronic device named "Li Si's Tablet" to invoke the note-taking and question-answering application. Similarly, the electronic device named "Li Si's TV" and the electronic device 200 are of the same type. The electronic device 100 may determine the electronic device named "Lisi's TV" as the video output device. That is, in response to a user operation acting on the nearby collaborative recommendation device 521 , the electronic device 100 may instruct the electronic device named "Li Si's TV" to play the course video. For the method for the electronic device 100 to search for the electronic devices in the nearby collaborative recommendation device 521C, reference may be made to the embodiment shown in FIG. 2E , which will not be repeated here.

The second recommendation box 522 may be used to display the electronic device information requested by the electronic device 100 to work together through the network disk application A. The second recommendation box 522 may include a network disk application A icon 522A, a last used device 522B, and a nearby collaboratively recommended device 522C. For the device 522B used last time and the nearby collaboratively recommended device 522C, reference may be made to the introduction in the aforementioned first recommendation box 521 , which will not be repeated here. The network disk application A may be the traditional application in the foregoing embodiments. It can be known from the second recommendation box 522 that the electronic device 100 once instructed the electronic device named "Zhang San's tablet" to perform collaborative work on document editing through the network disk application A.

The third recommendation box 522 may be used to display the electronic device information requested by the electronic device 100 for collaborative work through the network disk application B. The third recommendation box 522 may include a network disk application B icon 523A and a nearby collaborative recommendation device 523B. The nearby collaborative recommendation device 523B may include electronic devices that the electronic device 100 requests to perform the same type of collaborative work through applications other than the network disk application B. Exemplarily, the electronic device 100 does not request other electronic devices to perform cooperative work through the network disk application B. The electronic device 100 can find out in the aforementioned cooperative record storage module that it calls the document editing application A through the network disk application A and instructs the electronic device named "Zhang San's tablet". The nearby collaborative recommendation device 523B may include an electronic device named "Zhang San's tablet". The nearby collaborative recommendation device 523B may also include a prompt "the last time the network disk application A document edited collaboratively used the document editing application A" to recommend the same type of collaborative work records to the user.

As shown in FIG. 5D , in response to a user operation acting on the nearby collaborative recommendation device 523B, the electronic device 100 can instruct the electronic device named "Zhang San's tablet" to invoke the document editing application A through the network disk application B. In this way, for an application in the electronic device 100 that does not cooperate with other electronic devices, the user can also conveniently use the application on the electronic device 100 to call the electronic device that he is used to to work together, thereby improving the user experience. For a specific method for the electronic device 100 to recommend electronic devices that work together in the same type, reference may be made to the foregoing embodiments shown in FIG. 4A to FIG. 4D .

The user interface 520 may also include more or less recommendation boxes associated with applications in the electronic device 100 .

For the method for the electronic device 100 to display the negative one-screen interface 510 shown in FIG. 5A , reference may be made to the implementation method in the prior art, which is not limited in this embodiment of the present application.

FIG. 5A-FIG. 5D exemplarily show user operations in which some users request other electronic devices to work together through an application on the electronic device 100. Wherein, when the electronic device 100 requests other electronic devices to work together through an application, the method for establishing a communication connection between the electronic devices, the method for creating a session and storing snapshot information of the session by the electronic device can refer to the foregoing embodiments. Compared with the user operations shown in FIGS. 3A to 3F and FIGS. 4A to 4D , through the user operations shown in FIGS. 5A to 5D , the user can more conveniently access the An application establishes a communication connection with other electronic devices and requests the above-mentioned other electronic devices to work together.

Based on the scenarios shown in FIG. 2A to FIG. 2I , a communication system 500 provided in the embodiment of the present application is introduced below.

FIG. 6 exemplarily shows a schematic structural diagram of a communication system 500 . As shown in FIG. 6 , a communication system 500 may include an electronic device 100 , an electronic device 200 and an electronic device 300 . The electronic device 100, the electronic device 200 and the electronic device 300 are installed with program installation packages of different services in the course learning distributed application. For example, an application for providing answers to exercises is installed in the electronic device 100 . The exercise answer providing application can provide exercise answer providing service (namely ability1). The application for providing answers to exercises may be the application corresponding to the learning application icon 211 in FIG. 2A . A course video playing application is installed in the electronic device 200 . The course video playing application can provide a course video playing service (namely ability2). Note-taking and question-answering applications are installed in the electronic device 300 . The note-taking and question-answering application may provide note-taking and question-answering services (ie, ability3). The above-mentioned application for providing answers to exercises, the above-mentioned application for playing course video, and the above-mentioned application for taking notes and answering questions are all distributed applications for course learning. The application package name of the distributed application for learning the above course may be, for example, com.example.study. An application that can provide a service in a distributed application can also have a service package name. For example, the above note-taking and question-answering application may also have a service package name, such as: .StudyNotePadServiceAbility. This application does not limit the above application package names. Optionally, applications used to provide different services in a distributed application may also have different application package names.

In some embodiments, the exercise answer providing application in the electronic device 100 further includes a device connection program. The above device connection program can be used for the electronic device 100 to cooperate with other electronic devices. Wherein, by running the above device connection program, the electronic device 100 can establish a communication connection with the electronic device indicated in the device connection program. The electronic device 100 may also instruct the electronic device connected to it to invoke a corresponding application. Optionally, the above-mentioned device connection program and the application for providing answers to exercises may be included in two independent program installation packages. When the electronic device 100 installs the above-mentioned exercise answer providing application and device connection program, the electronic device 100 can receive relevant information through the interface in the exercise answer providing application (such as the video output device selection control 242 and the student learning device selection control 243 shown in FIG. 2D ). The user operates and executes the device connection program to call other electronic devices for collaborative work. Alternatively, the electronic device 100 may receive relevant user operations through the interface in the shortcut toolbar 513 shown in FIG. 5A (such as the collaborative device recommendation control 513C), execute the device connection program, and call other electronic devices for collaborative work.

Exemplarily, the device connection program in the electronic device 100 may be:

The above directive "reqConnections" can be used to define different types of coroutines. The type of cooperative work may be determined by the type of action that the electronic device 100 instructs other electronic devices to perform. The following Table 1 can illustrate the fields that need to be determined when defining different types of collaborative work, and the meaning of each field.

字段field	是否必选Is it required?	描述describe
actionaction	是Yes	动作的类型type of action
devicesdevices	是Yes	可连接的设备类型Connectable Device Types
bundleNamebundleName	否no	应用包名Application package name
abilityNameabilityName	否no	服务包名service package name
labellabel	否no	动作的名称action name

Table 1

It can be seen from Table 1 that the fields "action" and "devices" must be determined. The fields "bundleName", "abilityName", "label" are optional fields. Not limited to the above fields, more or less fields may be included when defining different types of collaborative work.

It can be seen from the above device connection program that two different types of cooperative work are defined in the above instruction "reqConnections". Wherein, the first type of collaborative work is the collaborative work in which the electronic device 100 instructs other electronic devices to play videos. In the first type of collaborative work, the types of devices to which the electronic device 100 can be connected include: mobile phones, tablets, TVs, and smart cars. That is, when the electronic device 100 searches for electronic devices, it can search for the device types included in the above-mentioned field "devices". This first type of collaboration does not specify the application package name and service package name. That is, when the electronic device 100 instructs other electronic devices to play the course video, it does not specify the application called by the other electronic devices.

In a possible implementation manner, the electronic device 100 instructs the electronic device 200 to play the course video through the exercise answer providing application. The electronic device 200 may preferentially call an application that belongs to the same distributed application as the above-mentioned exercise answer providing application (such as a course video playing application) to play the course video. If the above-mentioned course video playing application is not installed in the electronic device 200, the electronic device 100 may call other applications (such as Huawei video application) to play the course video.

In another possible implementation, the electronic device 100 instructs the electronic device 200 to play the course video through the exercise answer providing application, and the electronic device 200 invokes the above-mentioned course video playing application to play the course video. Snapshot information of session 1 is stored in electronic device 100 . The session 1 is a session in which an application is provided based on the answers to exercises when the electronic device 100 is logged into the current device account. The snapshot information of session 1 may include the application identifier of the course video playing application (ie, the application package name com.example.study of the course learning distributed application). When the electronic device 100 instructs the electronic device 200 to play the course video through the exercise answer providing application again, the electronic device 100 may send the application identification of the above-mentioned course video playing application to the electronic device 200 to instruct the electronic device 200 to call the historical collaborative application (that is, the above-mentioned Course video playback application) to play course videos. If the electronic device 200 cannot call the above course video playing application, the electronic device 200 can also call other applications (such as Huawei video application) to play the course video.

In another possible implementation manner, the electronic device 100 instructs the electronic device 200 to play the course video through the exercise answer providing application. The electronic device 200 can search for an application that can be used to play the video, and display the application options of the found application. In response to a user operation of selecting one of the above application options, the electronic device 200 may invoke an application corresponding to the application option to play the course video.

The second type of collaborative work is that the electronic device 100 instructs other electronic devices to provide note-taking and question-answering services. This second type of collaboration specifies an application package name and a service package name. The above application package name and service package name can be used to indicate the implementation manner of electronic equipment working together. That is, when the electronic device 100 instructs other electronic devices to provide note-taking and question-answering services, it specifies the application called by the other electronic devices.

Exemplarily, the electronic device 100 instructs the electronic device 300 to invoke the aforementioned note-taking and question-answering application through the exercise answer providing application. If the note-taking and question-answering application is installed in the electronic device 300, the electronic device 300 can invoke the note-taking and question-answering application. If the note-taking and question-answering application is not installed in the electronic device 300, the electronic device 300 may obtain and call the note-taking and question-answering application from the cloud server.

In some embodiments, when defining a type of cooperative work in the above-mentioned device connection program, only the name of the application package may be specified without specifying the name of the service package. Exemplarily, the electronic device 100 instructs the electronic device 200 to call a traditional application (such as a Huawei video application) to play the course video through the exercise answer providing application. The definition of the above-mentioned first type of collaborative work may include a field "bundleName". The value of the field "bundleName" can be the application package name of the Huawei video application.

The above instruction "onConnectAbilityReq" can be used to establish a connection between the electronic device 100 and the electronic device 300, and instruct the electronic device 300 to call the note-taking and answering application.

In some embodiments, the electronic device 100 requests other electronic devices to work cooperatively through the above-mentioned exercise answer providing application for the first time. For example, the electronic device 100 requests the electronic device 300 to invoke a note-taking and answering application. The electronic device 300 invoking the note-taking and answering application may display the user interface 280 as described in FIG. 2I. The electronic device 100 can create a session 1 shown in FIG. 6 . The electronic device 100 may determine the session ID of the session 1 according to the device account logged in on the electronic device 100 and the application package name (such as com.example.study) of the exercise answer providing application. The electronic device 100 may assign a storage sandbox to session 1 (ie session 1 storage sandbox A shown in FIG. 6 ). The location where session 1 stores sandbox A may be: .../data/user/<device account of electronic device 100>/com.example.study/<session ID of session 1>/....

Since the application package name and service package name are specified in the definition of the above-mentioned second type of collaborative work, the electronic device 100 can pass the session identifier of the above-mentioned session 1 to the electronic device 300, and instruct the electronic device 300 to call the note-taking and answering application. In the electronic device 300, the session identifier of the above-mentioned session 1 may be transmitted to the above-mentioned note-taking and question-answering application. The electronic device 300 may locally allocate a storage sandbox for session 1 (ie, session 1 storage sandbox C shown in FIG. 6 ). The location where session 1 stores sandbox C may be: .../data/user/<device account of electronic device 300>/com.example.study/<session identifier of session 1>/....

Session 1 storage sandbox A can be used to store the snapshot information of session 1. The snapshot information of session 1 may include connection information of the electronic device 100 and the electronic device 300 . The connection information may include: the device ID of the electronic device 100, the device ID of the electronic device 300, the application ID of the application invoked by the electronic device 300, the service ID of the service invoked by the electronic device 300, and the action type of the electronic device 300. The snapshot information of Session 1 may also include activity information of note-taking and quiz-answering applications in the electronic device 300 . The activity information may include: note data, answer data. Not limited to the above content, the snapshot information of session 1 may also include more or less content.

The session 1 storage sandbox C can be used to store activity information of note-taking and question-answering applications in the above-mentioned electronic device 300 . When the above note-taking and question-answering application is invoked again, the electronic device 300 may determine the state of the note-taking and question-answering application according to the above-mentioned activity information stored in the session 1 storage sandbox C. In this way, when the electronic device 100 instructs the electronic device 300 to invoke the note-taking and question-answering application again, the electronic device 300 can restore the note-taking and question-answering application to the state that the note-taking and question-answering application was exited last time.

The scenario in which the electronic device 100 creates the session 1 is not limited to the scenario in which the electronic device 100 requests other electronic devices to work together through the above exercise answer providing application for the first time. In some embodiments, the electronic device 100 once requested the electronic device 300 to call the note-taking and answering service through the above-mentioned exercise answer providing application, and the session created by this process has been cleared. Then, when the electronic device 100 requests another electronic device to work together through the above-mentioned exercise answer providing application again, the electronic device 100 cannot find the corresponding session identifier. The electronic device 100 may create a session 1 . The session 1 is a session in which an application is provided based on the answers to the above exercises when the electronic device 100 logs into the current device account.

In some other embodiments, when the electronic device 100 requests other electronic devices to work together through the above-mentioned exercise answer providing application, the session tag of session 1 may be queried. That is, the electronic device 100 once requested other electronic devices to work together by providing an application through the answers to the above exercises. The electronic device 100 may obtain the snapshot information of the session 1 from the above session 1 storage sandbox A. The electronic device 100 may send the session identifier of the session 1 to the electronic device (such as the electronic device 300 ) indicated by the snapshot information of the session 1, and request the electronic device 300 to call the note-taking and answering application. Wherein, the electronic device 300 may display the user interface 280 as shown in FIG. 3F .

The instruction for establishing a connection between the electronic device 100 and the electronic device 200 and instructing the electronic device 200 to play the course video may refer to the above-mentioned instruction "onConnectAbilityReq".

In some embodiments, the electronic device 100 stores the session ID of the session 1 and the snapshot information of the session 1 . The snapshot information of session 1 may be stored in session 1 storage sandbox A.

Since the application package name and service package name are not specified in the definition of the above-mentioned first type of collaborative work, when the electronic device 100 instructs the electronic device 200 to play the course video through the above-mentioned exercise answer providing application, it can pass the session identification of the above-mentioned session 1 to the electronic device. Device 200. The electronic device 200 can select an application that can be used to play the course video (such as a course video playing application, a Huawei video application, etc.). The specific selection method may be: select an application that belongs to the same distributed application as the application that provides the answers to the above exercises, select an application that plays a video when the electronic device 200 used to work with the electronic device 100 according to the snapshot information of A user action to select an app to play a course video to select. The embodiment of the present application does not limit the method for the electronic device 200 to select an application that can be used to play the course video. For example, the electronic device 200 may choose to call the course video playing application. Then, in the electronic device 200, the session identification of the above-mentioned session 1 may be transmitted to the above-mentioned course video playing application. The electronic device 200 may locally allocate a storage sandbox for session 1 (ie, session 1 storage sandbox B shown in FIG. 6 ). The location where session 1 stores sandbox B may be: .../data/user/<device account of electronic device 200>/com.example.study/<session ID of session 1>/....

The session 1 storage sandbox B can be used to store the activity information of the course video playing application in the electronic device 200 . The activity information may include the course identification and playing progress of the course video played by the electronic device 200 . When the above-mentioned course video playing application is invoked again, the electronic device 100 can determine the state of the course video playing application according to the activity information stored in the session 1 storage sandbox B. In this way, when the electronic device 100 instructs the electronic device 200 to call the course video playing application again, the electronic device 200 can restore the course video playing application to the state of the last exit from the course video playing application. For example, the electronic device 200 may display a user interface 260 as shown in FIG. 3F.

If the electronic device 100 instructs other electronic devices to play the course video through the exercise answer service for the first time, and the electronic device 200 is selected, and the electronic device 200 invokes the course video playing application, then the electronic device 100 can share the connection information between the electronic device 100 and the electronic device 200 Store to session 1 storage sandbox A. The above connection information between the electronic device 100 and the electronic device 200 may include: the device identification of the electronic device 100, the device identification of the electronic device 200, the application identification of the application that the electronic device 200 calls the service, the service identification that the electronic device 200 calls the service, the electronic The action type of the device 200. The above connection information between the electronic device 100 and the electronic device 200 may include the snapshot information with the session 1 . The snapshot information of session 1 may also include the activity information of the above-mentioned course video playing application of the electronic device 200 .

If the electronic device 100 once instructed the electronic device 200 to play the course video through the exercise answer providing service, and the electronic device 200 invokes the course video playing application to play the video, then the snapshot information of the session 1 stored in the session 1 storage sandbox A may include the electronic device 100 and the connection information of the electronic device 200 . The snapshot information of session 1 may also include the activity information of the above-mentioned course video playing application of the electronic device 200 . When the connection information between the electronic device 100 and the electronic device 200 is stored in the session 1 storage sandbox A, the method for the electronic device 100 to request other electronic devices to play the course video through the above-mentioned exercise answer providing application can be described above. Exercise Answers provides a method for applications to request other electronic devices to invoke note-taking and answering services. I won't go into details here.

The method for updating the snapshot information of the session 1 by the electronic device 100 is introduced below.

In some embodiments, the electronic device 100 may periodically record the snapshot information of the session 1 .

The electronic device 100 may request the electronic device 200 and the electronic device 300 to cooperate with itself according to the methods in the foregoing embodiments. As shown in FIG. 6 , the electronic device 100 can instruct the electronic device 200 to call the course video playing application through the exercise answer providing application, and instruct the electronic device 300 to call the note-taking and answering application. During the above collaborative work process, the electronic device 100 may store the snapshot information of the session 1 shown in FIG. 6 in the session 1 storage sandbox A.

As shown in FIG. 6 , the snapshot information of session 1 may include one or more records. Wherein, a record may include connection information between the electronic device 100 and an electronic device, activity information of invoking an application in the above-mentioned electronic device under the connection relationship, and a record time of this record. The connection information in the above record may include a source device identifier, a destination device identifier, an application identifier and a service identifier. The source device may be an electronic device (such as the electronic device 100 ) that instructs other electronic devices to invoke related applications. The destination device may be an electronic device (such as the electronic device 200, the electronic device 300) that receives the calling instruction to call the relevant application. The application identifier can call the application package name (such as com.example.study) of the application for the destination device. The service identifier is the service package name that can call the service for the destination device. The above service identifier may be an optional field. For example, if the application invoked by the destination device does not provide a program installation package in units of services, the service identifier in a record of the destination device may be empty. The recording time of a record can be determined by the activity information of this record. That is, the above activity information may be the activity information of the calling application in the destination device at the above recording time. For example, the first record shown in FIG. 6 is a record of electronic device 100 and electronic device 200 working together. The recording time of this record is t1. The recorded activity information may include the course identifier and the playing progress of the course video played by the electronic device 200 at time t1.

The specific method for the electronic device 100 to periodically record the snapshot information of session 1 may be as follows: the electronic device 100 may request to acquire the activity information of the course video playing application in the electronic device 200 every preset time period. When the above activity information is obtained, the electronic device 100 may update the activity information and record time of the first record in the snapshot information of Session 1 shown in FIG. 6 .

The electronic device 200 may store the activity information of the course video playing application in the session 1 storage sandbox B. The electronic device 200 may also periodically record the above activity information. Not limited to the course identification and playback progress of the above-mentioned course video, the cache data of the course video, etc. may also be stored in the session 1 storage sandbox B. This embodiment of the present application does not limit it.

For the method for the electronic device 100 to record the second record in the snapshot information of session 1 shown in FIG. 6 , reference may be made to the foregoing embodiments. A record in the snapshot information of session 1 may also include more or less fields. For example, the fields of a record may also include the type of action of the destination device and so on. The embodiment of the present application does not limit the storage form of the session snapshot information. In addition to the tabular form shown in FIG. 6, snapshot information may also be stored in the storage sandbox in other forms.

In some other embodiments, the electronic device 100 may record the snapshot information of session 1 in response to a user operation.

Exemplarily, during the cooperative work of the electronic device 100 and the electronic device 200, in response to a user operation on the electronic device 200 for exiting the playing of the course video, the electronic device 200 may record the time when the playing of the course video (such as time t3 ) to send the course identification and playing progress of the course video to the electronic device 100. The electronic device 100 may update the activity information and recording time of the first record in the snapshot information of session 1 by using the received course identification and playback progress of the course video played at time t3.

It can be seen from the communication system 500 shown in FIG. 6 that when the electronic device 100 requests other electronic devices to cooperate to realize the application scenario A through the application A (such as the above-mentioned application for answering exercises), the electronic device 100 can send the session A (such as the above-mentioned session 1) The session ID passed to the electronic device that works with itself. The electronic device 100 can exchange data with electronic devices in the same session. The above-mentioned session A is a session based on application A when logging into the current device account on the electronic device 100 . The electronic device 100 can use the snapshot information of session A to restore the connection relationship with the historical coordination device. The aforementioned historical collaboration device may be an electronic device that has established a connection relationship with the electronic device 100 when the application scenario A was implemented. In this way, the user can establish a connection relationship between the multiple electronic devices without performing operations on the multiple electronic devices respectively. This not only simplifies the user operation when multiple electronic devices are connected, but also facilitates the user to call the electronic device he is accustomed to, and enters the familiar application scene more quickly, thus improving the user experience.

In addition, the above-mentioned snapshot information of session A may also include the activity information of invoking applications by the electronic device 100 and the historical coordination device when the application scenario A is implemented. Optionally, the historical collaboration device may also locally store the interaction information of the application it invokes. According to the above activity information, when the electronic device 100 and the historical coordination device call the application to realize the application scenario A, the state of the application can be restored to the state indicated by the activity information. The activity information is, for example, the playing progress of the video. The electronic device can play the video from the play progress indicated by the activity information. In this way, the electronic device 100 and the historical cooperation device can continue to work together from the position where the cooperation work was interrupted last time, so as to realize the application scenario A.

Another communication system 600 provided by the embodiment of the present application is introduced below.

FIG. 7 exemplarily shows a schematic structural diagram of a communication system 600 . As shown in FIG. 7 , a communication system 600 may include an electronic device 100 , an electronic device 200 and an electronic device 400 . The device account registered on the electronic device 100 is different from the device account registered on the electronic device 400 .

The electronic device 100 , the electronic device 200 and the electronic device 400 may be installed with program installation packages of different services in the course learning distributed application. For example, both the electronic device 100 and the electronic device 400 are installed with exercises answer providing applications. The exercise answer providing application can provide exercise answer providing service (namely ability1). A course video playing application is installed in the electronic device 200 . The course video playing application can provide a course video playing service (namely ability2).

The electronic device 100 may request the electronic device 200 to play the course video by installing the exercise answer providing application. The electronic device 400 may also request the electronic device 200 to play the course video by installing the exercise answer providing application. The implementation process of the electronic device 100 and the electronic device 400 requesting the electronic device 200 to play the course video may refer to the embodiment shown in FIG. 6 above.

It can be seen from FIG. 7 that when the electronic device 100 instructs the electronic device 200 to play the course video through the exercise answer providing application, the electronic device 100 may send the session ID of session 1 to the electronic device 200 . The electronic device 200 may invoke the course video playing application, and allocate a storage sandbox for session 1 (ie session 1 storage sandbox B). The location where session 1 stores sandbox B may be: .../data/user/<device account of electronic device 200>/com.example.study/<session ID of session 1>/.... During the communication between the electronic device 100 and the electronic device 200 based on the above-mentioned session 1, the course video playback application can read the data in the session 1 storage sandbox B, and write data into the session 1 storage sandbox B.

The electronic device 400 includes a session 2 storage sandbox A. Session 2 storage sandbox A can be used to store snapshot information of session 2. This session 2 is a session in which an application is provided based on the answers to the above-mentioned exercises when the electronic device 400 logs into the current device account. When the electronic device 400 instructs the electronic device 200 to play the course video through the exercise answer providing application, the electronic device 400 may send the session identification of the session 2 to the electronic device 200 . The electronic device 200 may invoke the course video playing application, and allocate a storage sandbox for session 2 (ie session 2 storage sandbox B). The location where session 2 stores sandbox B may be: .../data/user/<device account of electronic device 200>/com.example.study/<session ID of session 2>/.... During the communication between the electronic device 400 and the electronic device 200 based on the above-mentioned session 2, the course video playing application can read the data in the session 2 storage sandbox B, and write data into the session 2 storage sandbox B.

It can be seen from the above embodiments that the electronic device can isolate a local storage sandbox in units of applications and sessions.

In some embodiments, an electronic device may receive instructions for invoking the same application from different electronic devices. The device accounts registered on the above-mentioned different electronic devices are different. The above-mentioned different electronic devices may respectively send the session identifiers of the sessions created by themselves to the above-mentioned one electronic device. When receiving session identifiers of different sessions, the above-mentioned one electronic device may assign storage sandboxes to these different sessions respectively. Since the above-mentioned different electronic devices instruct the above-mentioned one electronic device to call the same application, the storage sandboxes of the above-mentioned different sessions can all be read and written by the same application. Wherein, during the collaborative work of the above-mentioned one electronic device based on one session, the application invoked by the above-mentioned one electronic device can perform operations of reading and writing data on the storage sandbox of the session. That is, the same application can read and write data to different storage sandboxes in different sessions.

In some other embodiments, one electronic device instructs another electronic device to invoke application D and application E through application C. The session identifier of session C exists in the above-mentioned one electronic device. The session identifier of the session C is a session based on the application C when the above-mentioned one electronic device logs into the current device account. When the above-mentioned one electronic device instructs the above-mentioned other electronic device to call the application D through the application C, the above-mentioned one electronic device may transfer the session identifier of the session C to the above-mentioned another electronic device. The above-mentioned another electronic device may assign the local storage sandbox D to the session C. The application D above can perform data read and write operations on the storage sandbox D. When the above-mentioned one electronic device instructs the above-mentioned another electronic device to call the application E through the application C, the above-mentioned one electronic device may transfer the session identifier of the session C to the above-mentioned another electronic device. The above another electronic device may assign the local storage sandbox E to the session C. The above-mentioned application E can perform operations of reading and writing data on the storage sandbox E. That is, different applications can read and write data to different storage sandboxes in the same session.

In some embodiments, snapshot information of a session may be stored in a distributed storage system. The above distributed storage system may include multiple storage devices. These multiple storage devices can perform data sharing and synchronization. Multiple electronic devices related to a session can obtain the snapshot information of the session from the distributed storage system. The multiple electronic devices related to a session may be a main device (such as the electronic device 100 ) and a sub-device (an electronic device that cooperates with the electronic device 100 in this session) in a session. The above method can facilitate the electronic device related to a session to obtain the snapshot information of the session. Moreover, the storage devices in the distributed storage system may be devices with higher computing performance and storage performance than multiple electronic devices related to one session. Using the above-mentioned distributed storage system, multiple electronic devices related to a session can save their own computing resources and storage resources.

The following specifically uses the communication system 700 shown in FIG. 8 to introduce a distributed storage method involved in the embodiment of the present application.

As shown in FIG. 8 , a communication system 700 may include an electronic device 100 , an electronic device 200 , an electronic device 300 and a distributed storage system 710 . Wherein, the electronic device 100 may instruct the electronic device 200 to call the course video playing application through the exercise answer providing application. The connection information in the collaborative work process and the activity information of the course video playback application can be included in the snapshot information of session 1. Session 1 is a session in which the electronic device 100 provides applications based on the answers to exercises when logging into the current device account. The electronic device 200 may instruct the electronic device 200 to use the course video playing application through the exercise answer providing application. The connection information in the collaborative work process and the activity information of the course video playing application can be included in the snapshot information of session 2. Session 2 is a session in which the electronic device 400 provides applications based on the answers to exercises when logging into the current device account. The device accounts registered in the electronic device 100 and the electronic device 400 are different.

In a possible implementation manner, the distributed storage system 710 may include a session 1 storage sandbox 711 , a session 2 storage sandbox 712 and other storage sandboxes allocated for other sessions. The location of the storage sandbox of a session in the distributed storage system 710 can be determined according to the device account of the master device in the session, the application identifier of the application on the master device that calls the sub-device to work together, and the session identifier of the session. Multiple electronic devices related to a session can perform read and write operations on the storage sandbox of the session in the distributed storage system 710 . The above-mentioned session 1 storage sandbox 711 and session 2 storage sandbox 712 are storage sandboxes allocated by the distributed storage system 710 for session 1 and session 2 respectively.

When the electronic device 100 establishes the session 1, it may instruct the distributed storage system 710 to allocate a storage sandbox for the session 1. The location of the session 1 storage sandbox 711 may be determined by the device account of the electronic device 100 , the application identifier of the above-mentioned exercise answer providing application, and the session identifier of the session 1 . When the electronic device 100 requests other electronic devices to call the course video playing application through the exercise answer providing application, the electronic device 100 may obtain the session 1 snapshot information from the session 1 storage sandbox 711 in the distributed storage system 710 . The snapshot information of the session 1 may include connection information between the electronic device 100 and the electronic device 200 . Then, the electronic device 100 may request to be connected with the electronic device 200, and instruct the electronic device 200 to invoke the course video playing application. The electronic device 100 may transfer the session identifier of the session 1 to the electronic device 200 . The electronic device 200 determines that it is in the communication connection of Session 1 . The electronic device 200 may store the activity information of the course video playing application (such as the course identification and playing progress of the course video) in the session 1 storage sandbox 711 of the distributed storage system 710 .

The method for determining the session 2 storage sandbox 712 when the electronic device 400 establishes the session 2 may refer to the method for establishing the session 1 storage sandbox 711 of the electronic device 100 . When the electronic device 200 determines that it is in the communication connection of the session 2, it may perform read and write operations on the session 2 storage sandbox 712 .

The multiple storage devices in the distributed storage system 710 may include one or more electronic devices among the main device and the sub-device that communicate with each other. For example, the multiple storage devices in the distributed storage system 710 may include the electronic device 100 and the electronic device 200 . Optionally, the multiple storage devices in the distributed storage system 710 may also include electronic devices other than the main device and sub-device of each session. For example, both the electronic device 100 and the electronic device 200 are connected to the same router. In the scenario where the electronic device 100 instructs the electronic device 100 to invoke the course video playing application through the exercise answer providing application, the electronic device 100 may instruct a router connected to itself to allocate a storage sandbox for Session 1 . There may be a session 1 storage sandbox 711 in the router. The router can be a storage device in the distributed storage sandbox 710 .

In a possible implementation manner, the electronic device 100 may perform read and write operations on the session 1 storage sandbox in the router. The electronic device 200 may send the activity information of the course video playing application to the electronic device 100 . Further, the electronic device 100 may store the received activity information of the course video playing application in the session 1 storage sandbox 711 .

In another possible implementation manner, the electronic device 100 may send the location of the session 1 storage sandbox 711 in the router to the electronic device 200 . The electronic device 200 can acquire the snapshot information of the session 1 from the session 1 storage sandbox 711 , and store the activity information of the course video playing application in the session 1 storage sandbox 711 . In this way, if the electronic device 100 leaves during the process of the electronic device 100 instructing the electronic device 200 to play the course video through the exercise answer providing application, the electronic device 200 can continue to update the snapshot information of the session 1.

In some embodiments, the master device and sub-device in a session can still locally allocate the storage sandbox shown in Figure 6 and Figure 7 for this session, and store the snapshot information of the session in the local storage sandbox .

The embodiment of the present application does not limit the method for establishing a communication connection between the main device and the sub-device in each session and the storage device in the distributed storage system 710 . For details, reference may be made to the implementation method of the distributed storage technology in the prior art.

Through the above-mentioned distributed storage system, both the main device and the sub-device in a session can conveniently obtain and record the snapshot information of the session. Moreover, the storage devices in the distributed storage system may be devices with higher computing performance and storage performance than multiple electronic devices related to one session. Using the above-mentioned distributed storage system, multiple electronic devices related to a session can save their own computing resources and storage resources.

In some embodiments, when an electronic device requests other electronic devices to cooperate with itself through an application, the electronic device may prioritize the electronic devices found by itself. This electronic device may select the electronic device with the highest priority and that can perform cooperative work.

A method for an electronic device to select an electronic device that cooperates with itself provided by an embodiment of the present application is introduced below.

Here, a scenario in which the electronic device 100 requests other electronic devices to play the course video by providing a service through the answers to the exercises is used as an example for introduction. Wherein, the electronic device 100 may establish a session 1 . Session 1 may be a session in which an application is provided based on the answers to the above exercises when the electronic device 100 logs into the current device account.

First, the electronic device 100 may acquire the snapshot information of session 1 from the storage sandbox of session 1 . If the snapshot information of session 1 contains the connection information for the electronic device 100 to request other electronic devices to play the course video, the electronic device 100 can instruct the history collaboration device to call the history collaboration application to play the course video according to the connection information. For example, the snapshot information of session 1 includes the first record of the snapshot information in session 1 storage sandbox A shown in FIG. 6 . The first record may indicate that the electronic device 100 instructs the electronic device 200 to call the course video playing application. Then the historical collaboration device is the electronic device 200 . The historical collaborative application is a course video playback application. If the electronic device 200 is in an available state, the electronic device 100 may instruct the electronic device 200 to call the course video playing application. Optionally, if the electronic device 200 cannot call the application for playing the course video, the electronic device 200 may call other applications that can play the course video (such as the Huawei video application) to play the course video. The fact that the electronic device 200 is in the usable state may indicate that the electronic device can establish a communication connection with other electronic devices and run applications installed by itself.

In some embodiments, if the electronic device 100 finds multiple historical collaborative devices instructed to play course videos from the snapshot information of session 1, and these multiple historical collaborative devices are all available, the electronic device 100 can Prioritize the multiple historical collaborative devices. The device type may represent the degree of privacy of the device. Electronic devices with lower privacy are ranked higher. The degree of privacy of different types of devices can be TV=speaker<tablet<watch=mobile phone. For example, the plurality of historical collaboration devices include a TV and a tablet, and the electronic device 100 may preferentially select and instruct the TV to call the course video playing application. Optionally, the device connection program of the electronic device 100 includes prioritization of devices. This prioritization can eg be TV, tablet, mobile phone, smart car. Among them, TV has the highest priority. If the multiple historical collaboration devices include a TV and a tablet, the electronic device 100 may preferentially instruct the TV to call the course video playing application.

The request of the electronic device 100 to cooperate with an electronic device with a high degree of privacy may require the user to confirm on the electronic device with a high degree of privacy. Electronic devices with lower privacy are ranked higher. The electronic device 100 preferentially selects electronic devices with low privacy, which can simplify user operations during the connection process and improve device connection efficiency.

In some embodiments, if the electronic device 100 finds the above-mentioned historical coordination device from the snapshot information of session 1 but the historical coordination device is in an unavailable state, the electronic device 100 can play the content that it has searched for but has not been instructed by itself. Prioritize electronics over lesson videos. Among them, the priority order of the searched electronic devices may be from front to back: electronic devices with the same device account and the same device type as the historical collaborative device, electronic devices with the same device account as the historical collaborative device but different device types, An electronic device with a device account different from that of the historical collaborative device but of the same device type, and an electronic device with a device account different from that of the historical collaborative device but of a different device type.

Wherein, if there are multiple electronic devices with the same device account as the historical collaboration device but with different device types, the multiple electronic devices can be prioritized according to the above privacy level, or according to the device connection program defined in the electronic device 100. order of priority. If there are multiple electronic devices with different device accounts and different device types from the historical collaboration device, these multiple electronic devices can also be prioritized according to the above privacy level, or according to the order defined in the device connection program of the electronic device 100 Prioritize. The electronic device 100 may instruct the electronic device that has the highest priority and can work together to play the course video.

In some embodiments, if the electronic device 100 does not find the historical collaborative device instructed to play the course video from the snapshot information of session 1, the electronic device 100 may search the electronic device 100 from the collaborative record storage module described in the previous embodiment. Whether it has instructed other electronic devices to perform the same type of collaborative work (that is, instruct other electronic devices to play video). For example, the electronic device 100 instructs the electronic device 200 to call the Huawei video application through an application (an application other than the application for providing answers to exercises). The electronic device 100 may provide the user with the option of connecting with the electronic device 200 and calling the Huawei video application to play the course video. Alternatively, the electronic device 100 may directly instruct the electronic device 200 to call the Huawei video application to play the course video.

In some embodiments, the electronic device 100 may recommend the electronic devices it has searched for to the user in the order of priority sorted above, and receive a user operation for selecting a device. The electronic device 100 may instruct the selected electronic device to call the course video playing application.

It can be seen from the above method of selecting electronic devices for cooperative work that the master device in a session may preferentially request historical cooperative devices to perform cooperative work again. This makes it convenient for users to call their accustomed electronic devices, enter familiar application scenarios faster, and improve user experience. Moreover, if the historical coordinated device is unavailable, the main device may select the electronic device that is ranked first and that can work cooperatively to perform coordinated work according to the above priority ranking.

In some embodiments, a communication system composed of a master device and sub-devices of a session may include multi-level connections. The master device may store the connection information between each node in the multi-level connection in the storage sandbox of this session. According to the connection information between each of the above nodes, the above-mentioned master device can restore the above-mentioned multi-level connection.

The following uses the communication system 800 shown in FIG. 9 as an example to introduce the method for establishing a multi-level connection of an electronic device provided in the embodiment of the present application.

As shown in FIG. 9 , the communication system 800 may include an electronic device 810 , an electronic device 820 , an electronic device 830 , an electronic device 840 and an electronic device 850 . Wherein, an application 811 may be installed in the electronic device 810 . An application 821 may be installed in the electronic device 820 . An application 831 may be installed in the electronic device 830 . An application 841 may be installed in the electronic device 840 . An application 851 may be installed in the electronic device 850 .

The communication system 800 may be composed of a session 801 master device and slave devices. The master device of a session can be used to establish a connection relationship between multiple electronic devices working together in this session. The session identifier of this session may be determined by the device account of the master device and the application identifier of the application on the master device that requests other electronic devices to work together. A session can have only one master device. A sub-device of a session may be an electronic device that cooperates with the main device in this session. As shown in FIG. 9 , the main device of session 801 is electronic device 810 , and the sub-devices include electronic device 820 , electronic device 830 , electronic device 840 and electronic device 850 .

In the session 801 , the electronic device 810 instructs the electronic device 820 to invoke the application 821 through the application, and instructs the electronic device 840 to invoke the application 841 . The electronic device 820 instructs the electronic device 830 to invoke the application 831 through the application 821 . The electronic device 840 instructs the electronic device 850 to invoke the application 851 through the application 841 . Wherein, an electronic device may store its own way of opening an application. The above-mentioned ways of opening an application may include passive opening and active opening. Passive opening may mean that the electronic device receives an instruction from another electronic device to call the application, and starts the application. Active opening may mean that the electronic device receives a user operation for opening the application (such as a user operation acting on an application icon of the application), and starts the application. In the case that the electronic device 820 opens the application 821 in the above-mentioned passive opening mode, the electronic device 820 instructs the electronic device 830 to invoke the snapshot information contained in the connection information of the application 831 through the application 821 . If the electronic device 820 actively starts the application 821, and instructs the electronic device 830 to call the application 831 through the application 821, the electronic device 820 can create a session as the master device, and store the connection information with the electronic device 830 in the storage sandbox of the session created by itself middle.

Communication system 800 includes two levels of connectivity. The first-level connection is the connection between the master device (ie, the electronic device 810 ) and the electronic devices (such as the electronic device 820 and the electronic device 840 ) in the first-level nodes. The second-level connection is the connection between the electronic device in the above-mentioned first layer node and the electronic device in the second layer node. For example, the connection between the electronic device 820 and the electronic device 830 , the connection between the electronic device 840 and the electronic device 850 .

In a possible implementation manner, the electronic device 810 may store the connection information table 812 shown in FIG. 9 in the storage sandbox of the session 1. Connection information table 812 may include connection information between each node in session 801 . Here, the main device and the sub-device in the session all allocate storage sandboxes locally for this session as an example. That is, the connection information table 812 may be stored in the storage sandbox allocated for the session 1 in the electronic device 810 . For example, the fields in the connection information table 812 may include a source application in the source device and a target application in the destination device. The source device may represent an electronic device instructing other electronic devices to invoke related applications in the first-level connection. The source application may refer to an application in the source device for instructing other electronic devices to invoke related applications. The destination device may refer to an electronic device receiving a call instruction to call a related application in the first-level connection. The target application may refer to the application called by the target device after receiving the calling instruction.

It should be noted that the data in the connection information table may specifically be the device identifier of the electronic device and the application identifier of the application. If the above application can provide a service in a distributed application, the application identifier of the application may include the application package name of the distributed application and the service package name of the service. If the above application is a traditional application, the application identifier of this application may be the application package name of this traditional application. In each connection information identifier shown in FIG. 9 , the device identifier of the electronic device and the application identifier of the application are respectively represented by the label of the electronic device and the label of the application. The symbols and applied symbols of the above-mentioned electronic equipment shall not limit the present application.

It can be known from the connection information table 812 that when the source device is the electronic device 810 and the source application is the application 811 , the destination devices may be the electronic device 820 and the electronic device 840 . Wherein, the target application in the electronic device 820 is the application 821 . The target application in the electronic device 840 is the application 841 . When the source device is the electronic device 820 and the source application is 821 , the destination device may be the electronic device 830 . The target application in the electronic device 830 is the application 831 . When the source device is the electronic device 840 and the source application is 841 , the destination device may be the electronic device 850 . The target application in the electronic device 850 is the application 851 .

When receiving an instruction for restoring the connection relationship indicated by the snapshot information of the session 801 , the electronic device 810 may restore the multi-level connection in the communication system 800 according to the above connection information table 812 . The above-mentioned instruction for restoring the connection relationship indicated by the snapshot information of the session 801 may be automatically triggered by the above-mentioned application 811, or may be triggered by a user operation acting on the application 811 (as shown in FIG. 3B , the video output device selection control 242 user actions). The embodiment of the present application does not limit the above instructions.

Specifically, the electronic device 810 may obtain the connection information table 812 from the storage sandbox of the session 801 . According to the connection information table 812, the electronic device 810 can connect with the electronic device in the first layer node, and instruct the electronic device in the first layer node to call the corresponding destination application. The electronic device 810 may also send the connection information between the electronic device in the first layer node and the electronic device in the subsequent layer nodes of the first layer node to the electronic device in the first layer node. For example, the electronic device 810 may be connected to the electronic device 820 and instruct the electronic device 820 to call the application 821 through the application 811 . The electronic device 810 may also send the connection information between the electronic device 820 and the electronic device 830 to the electronic device 820 . Then, the electronic device 820 can be connected with the electronic device 830 , and instruct the electronic device 830 to call the application 831 through the application 821 .

In a possible application scenario, the electronic device 810 is a mobile phone. Application 811 provides applications for the answers to exercises in the foregoing embodiments. Electronic device 820 is a television. Application 821 is the course video playing application in the foregoing embodiments. The electronic device 830 is a speaker. Application 831 is an audio playback application. The mobile phone can instruct the TV to call the course video playing application through the application for providing answers to the exercises, and send the connection information between the TV and the sound box to the TV. According to the above connection information between the TV and the speaker, the TV instructs the speaker to call the audio playback application through the course video playback application. In the above-mentioned application scenario where the mobile phone, TV and speakers work together, the mobile phone can be used to provide answers to exercises. The TV can display the user interface of the course videos. Speakers can play the audio of the lesson video.

If in the session 801, the electronic device 830 is also connected to an electronic device, and the application 831 instructs the electronic device to call a corresponding application, the connection information table 812 may also include the connection information between the electronic device 830 and the electronic device. In addition to the connection information between the electronic device 820 and the electronic device 830 , the electronic device 810 may also send the connection information between the electronic device 830 and the electronic device to the electronic device 820 . Further, the electronic device 820 may send the connection information between the electronic device 830 and the electronic device to the electronic device 830 . In this way, the electronic device 830 can be connected with this one electronic device.

In some embodiments, a sub-device of a session may store connection information between itself and an electronic device in a subsequent hierarchical node. For example, electronic device 820 is a child device of session 801 . The electronic device 820 may store the connection information table 822 shown in FIG. 9 . It can be known from the connection information table 822 that when the source device is the electronic device 820 and the source application is the application 821 , the destination device may be the electronic device 830 . The target application in the electronic device 830 is the application 831 . The connection information table 822 may be stored in a storage sandbox locally allocated by the electronic device 820 to the session 801 . When receiving an instruction from the application 811 in the electronic device 810 to call the application 821, the electronic device 820 can call the application 821, connect with the electronic device 830 according to the connection information table 822, and instruct the electronic device 830 to call the application 831.

The connection information table 822 can also be used for collaborative recommendation of the same type. Specifically, the electronic device 820 may include the collaborative record storage module in the foregoing embodiments. The electronic device 820 may store data on the cooperative work of the electronic device 820 and the electronic device 830 in the collaborative record storage module. These data may include the application identifiers of the applications invoked by the electronic device 820 and the electronic device 830 when working together (such as the application identifiers of the application 821 and the application 831 ), and the type of action performed by the electronic device 830 invoking the application 831 . If the electronic device 820 requests other electronic devices to work together through the installed application 823, and the type of the cooperation is the same as the type of action that the electronic device 820 instructs the electronic device 830 to perform, the electronic device 820 can instruct the electronic device through the application 823 830 invokes the application 831 . The type of the aforementioned cooperative work can be determined by the field "action" in the aforementioned device connection program. Exemplarily, the above-mentioned application 821 is a course video playing application. Application 831 is an audio playback application. The collaborative record storage module in the electronic device 820 may include the collaborative work data that the electronic device 820 instructs the electronic device 830 to call the application 831 through the application 821 . When the electronic device 820 requests other electronic devices to play audio through the Huawei video application, the electronic device 820 can find the collaborative work data of the above-mentioned electronic device 820 instructing the electronic device 830 to call the application 831 through the application 821 from the collaborative record storage module. Then, the electronic device 820 can instruct the electronic device 830 to call the application 831 to play audio through the Huawei video application.

The electronic device 810 instructs the electronic device 840 to call the application 841 through the application 811, and the electronic device 840 instructs the electronic device 850 to call the application 851 through the application 841. The connection process can refer to the connection of the electronic device 810, the electronic device 820 and the electronic device 830 in the foregoing embodiments. The process will not be repeated here. The connection information between the first layer nodes and the electronic devices in the subsequent layer nodes in the connection information table 812 may be transmitted to the electronic device 810 by layer-by-layer reporting. For example, in the session 801, the connection information between the electronic device 820 and the electronic device 830 may be sent by the electronic device 820 to the electronic device 810. If in the session 801, the electronic device 830 is also connected to an electronic device. The electronic device 830 may send the connection information between itself and the electronic device to the electronic device 820 . Further, the electronic device 820 may send the connection information between the electronic device 830 and the electronic device to the electronic device 810 .

In some embodiments, the electronic device 810 can restore the above-mentioned multi-level connections hierarchically. For example, the electronic device 810 may restore the first-level connection first. The first-level connection may include: a connection between the electronic device 810 and the electronic device 820 , and a connection between the electronic device 810 and the electronic device 840 . In response to a user operation acting on the electronic device in the first-level node to request other electronic devices to work together, the electronic device 810 may instruct the electronic device in the first-level node to resume the second-level connection. The second-level connection may include: a connection between the electronic device 820 and the electronic device 830 , and a connection between the electronic device 840 and the electronic device 850 .

In some embodiments, the electronic device 910 may restore a part of the above-mentioned multi-level connections. For example, in response to a user operation acting on the electronic device 810 for requesting the electronic device 820 to work together, the electronic device 810 may restore the connection between the electronic device 810 and the electronic device 820 and the connection between the electronic device 820 and the electronic device 830 shown in FIG. 9 . The connection between the electronic device 810 and the electronic device 840 may be restored after the electronic device 810 receives a corresponding user operation.

In some embodiments, the storage sandbox of session 801 may also be located in a distributed storage system. Both the main device and the sub-device in the session 801 can perform read and write operations on the storage sandbox of the session 801 in the distributed storage system. For an implementation manner of distributed storage collaboration allocating a storage sandbox to the session 801, reference may be made to the embodiment shown in FIG. 8 above, which will not be repeated here.

It can be seen from the communication system shown in FIG. 9 that, not limited to the single-level connection shown in FIG. 3F , the master device in a session can store connection information of multi-level connections. The master device can restore the multi-level connection according to the connection information of the multi-level connection. This simplifies user operations when multiple electronic devices are connected, making it convenient for users to call their accustomed electronic devices and quickly enter familiar application scenarios.

In some embodiments, when the master device in a session restores the connection relationship between multiple electronic devices in the session according to the snapshot information of the session, there may be problems such as cyclic calling, unavailable historical coordination devices, and the like. The above problem of circular calling may mean that the source device instructs the destination device to call the destination application through the source application. The destination device instructs the source device to call the source application through the destination application. The above cyclic call may cause the connection information between the two electronic devices to be cyclically transmitted between the two devices, wasting computing resources and storage resources of the two electronic devices.

The following uses the communication system 900 shown in FIG. 10 as an example to introduce a method for avoiding the above-mentioned cycle call problem during the device connection process, and a method for transferring connection information when the historical collaboration device is unavailable.

As shown in FIG. 10 , the communication system 900 may include an electronic device 910 , an electronic device 920 , an electronic device 930 , an electronic device 940 , an electronic device 950 , an electronic device 960 , an electronic device 970 , an electronic device 980 , an electronic device 990 and an electronic device 9100 . Among them, the electronic device 910, the electronic device 920, the electronic device 930, the electronic device 940, the electronic device 950, the electronic device 960, the electronic device 970, the electronic device 980, the electronic device 990, and the electronic device 9100 can respectively install the application 911, the application 921 , application 931 , application 941 , application 951 , application 961 , application 971 , application 981 , application 991 and application 9101 .

The communication system 900 may be composed of a master device and a slave device of a session 901 . It can be known from the foregoing embodiments that the electronic device 910 is the master device of the session 901 . All electronic devices in the communication system 900 except the electronic device 910 are sub-devices of the session 901 . For a method for establishing a connection relationship between electronic devices in the communication system 900, reference may be made to the foregoing embodiments. The connection information table 912 in the electronic device 910, the connection information table 922 in the electronic device 920, the connection information table 932 in the electronic device 930, the connection information table 952 in the electronic device 950, the connection information table 972 in the electronic device 970, and For the data and functions contained in the connection information table 920 in the electronic device 980, reference may be made to the foregoing embodiment shown in FIG. 9 . I won't go into details here.

In some embodiments, according to the connection information table 912 , the electronic device 910 can use the application 911 to instruct the electronic device 950 to call the application 951 . The electronic device 910 may also send the connection information that the electronic device 950 is the source device to the electronic device 950 . The aforementioned connection of the electronic device 950 as the source device may include: the electronic device 950 instructs the electronic device 960 to call the application 961 through the application 951 , and the electronic device 950 instructs the electronic device 910 to call the application 911 through the application 951 . Then, in the session 901, the electronic device 910 instructs the electronic device 950 to call the application 951 through the application 911, and the electronic device 950 instructs the electronic device 910 to call the application through the application 951, which will cause the above-mentioned problem of cyclic calling. Wherein, the electronic device 910 sends the calling instruction to the electronic device 950 through the application 911 , and the electronic device 950 sends the calling instruction to the electronic device 910 through the application 951 .

In order to avoid the above-mentioned circular call problem, the master device and the sub-devices in a session can store their own hierarchical identifiers. The hierarchical identification of an electronic device may be determined by the connection distance between this electronic device and the master device. The connection distance may represent the number of devices separated between one electronic device and the main device. The more device data there is between an electronic device and the main device, the greater the connection distance between this electronic device and the main device, and the higher the level identification of this electronic device. In a possible implementation manner, in a session, when an electronic device with a higher level identifier instructs an electronic device with a lower level identifier to invoke an application, an invocation instruction may be sent to the electronic device with a lower level identifier. If the electronic device with a lower level identifier recognizes that the call instruction indicates that the application it calls is an application that has been called in a session, the electronic device with a lower level identifier may not execute the call instruction (for example, discard the call instruction), and send the call instruction to The above-mentioned electronic device with a higher level identifier sends a response message. The response message may be used to indicate that the above calling instruction is an invalid instruction. In another possible implementation, the electronic device with a higher level identifier may search for connection information of the destination device as an electronic device with a lower level identification than its own from the connection information of itself as the source device. If it exists, the electronic device with a higher level identifier can further determine whether the target application in the connection information is an application that has been invoked in this session. If so, the electronic device with a higher level identifier may not send the calling instruction to the electronic device with a lower level identifier according to the connection information. In this way, the above-mentioned circular calling problem can be avoided between two electronic devices in a session, and the computing resources and storage resources of the electronic devices are saved.

Exemplarily, the master device, that is, the layer identifier of the electronic device 910 may be layer 0. The sub-device directly connected to the main device in the session 901 may have a level identifier of the first level. In the session 901, the sub-device directly connected to the electronic device with the first-level identification (such as the electronic equipment 930, the electronic equipment 960, and the electronic equipment 980) may have a second-level identification. In the session 901, the sub-device directly connected to the electronic device with the second-level identification (for example, the electronic device 940 and the electronic device 990) may have a third-level identification. By analogy, it is possible to determine the electronic devices whose layers are identified as layer 4, layer 5, . . . in a session.

It can be known from the connection information table 952 that the electronic device 950 can obtain the connection information of itself as the source device and the electronic device 910 as the destination device: the electronic device 950 instructs the electronic device 910 to call the application 911 through the application 951 . Since the application 911 is an application that has been called in the session 901 . The electronic device 950 sends a call instruction to the electronic device 910 to call the application 911 through the application 951, and the electronic device 910 can determine that the application 911 is an application that has been called in the session 901, and the sending device of the call instruction is an electronic device with a higher level identification than itself. equipment. The electronic device 910 may discard the calling instruction and send the above-mentioned response message to the electronic device 950 . Alternatively, the electronic device 950 may determine that the application 911 is an application that has been called in the session 901, and the receiving device of the calling instruction is an electronic device with a lower level identifier than itself. The electronic device 950 may delete the connection information between itself and the electronic device 910 in the connection information table 952 .

In some embodiments, the connection information table 972 in the electronic device 970 may include: connection information between the electronic device 970 and the electronic device 980 , and connection information between the electronic device 980 and the electronic device 990 . That is, in the session 901 , the electronic device 970 once instructed the electronic device 980 to call the application 981 through the application 971 . The electronic device 980 once instructed the electronic device 990 to invoke the application 991 through the application 981 . When the electronic device 970 requests the electronic device 980 to invoke the application 981 through the application 971, the electronic device 970 finds that the electronic device 980 is in an unavailable state. For example, the electronic device 980 is turned off. Electronic device 970 cannot connect to 980. The electronic device 970 may select the electronic device 9100 according to the method for selecting an electronic device that cooperates with itself in the foregoing embodiments. Wherein, in the session 901, the electronic device 970 has never been connected with the electronic device 9100. The connection information between the electronic device 970 and the electronic device 9100 cannot be found in the above connection information table 912 and the connection information table 972 .

When the electronic device 970 is connected to the electronic device 9100 and instructs the electronic device to call the application 9101 through the application 971, the electronic device 970 can add the connection information between itself and the electronic device 9100 to the above-mentioned connection information table 972, and send the connection information to the electronic device. device 910. The electronic device 910 may add the connection information of the electronic device 970 and the electronic device 9100 into the connection information table 912 . In addition, the electronic device 970 may transfer the session identification of the session 901 to the electronic device 9100 .

Application 9101 and application 981 may be the same application (for example, both are course video playing applications), or application 9101 and application 981 may be different applications, but the two applications may provide the same service. For example, application 981 is a course video playing application. Application 9101 is a Huawei video application. Both applications can provide services to play videos.

Since the electronic device 980 is unavailable, the electronic device 970 may terminate transmission of the connection information that the source device is the electronic device 980 . That is, the electronic device 980 may not send the connection information between the electronic device 980 and the electronic device 990 to the electronic device 9100, so as to avoid affecting the user experience due to inappropriate restoration of the device connection relationship.

The connection information in the snapshot information of a session may be transferred according to the method shown in FIG. 9 and FIG. 10 . The activity information of the application in the snapshot information of a session can also be transmitted according to the methods shown in FIG. 9 and FIG. 10 . I won't go into details here.

In some embodiments, the session ID of a session can be the device account of the main device, the application ID of the application running on the main device that requests the sub-device to work together, and the application running on the main device that requests the sub-device to work together The account number is determined jointly. That is to say, the device account on the main device remains unchanged. The master device requests the sub-devices to work together through an application. If different application accounts are logged in successively on this application, the main device can create different sessions. A session may be a session based on an application account in the application when the main device logs in the current device account. For the snapshot information of a session, reference may be made to the foregoing embodiments. Combining the application account to identify the session ID of the session, the main device can distinguish the activity information of the application invoked by the sub-device when the above-mentioned application logs in with different application accounts.

For example, the main device instructs the sub-device to call the course video playing application through the application for providing answers to exercises in the foregoing embodiments. When user A and user B log in to the app that provides answers to the exercises, the playback progress of the course video in the course video playback app on the sub-device is different. Under the above-mentioned different application accounts, the activity information of calling the application on the sub-device may be stored in storage sandboxes of different sessions respectively.

Optionally, the activity information of the application invoked on the sub-device may be associated with the application account and stored in the cloud server. The sub-device can obtain the activity information associated with the above-mentioned application account from the cloud server to reply to the status of the application called by itself.

The embodiment of the present application does not limit the types of the electronic devices mentioned in the foregoing embodiments. The electronic device in the foregoing embodiments may be, for example, a mobile phone, a tablet computer, a television, a wearable electronic device, a vehicle machine, a notebook computer, a handheld computer, a netbook, a personal digital assistant (personal digital assistant, PDA), an augmented reality (augmented reality, AR) equipment, virtual reality (virtual reality, VR) equipment, artificial intelligence (AI) equipment, etc., can also be Internet of Things (IOT) or smart home equipment, such as speakers, air conditioners, refrigerators , water heaters, lamps, etc.

A schematic structural diagram of an electronic device 100 provided in an embodiment of the present application is introduced below.

As shown in FIG. 11 , the electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charging management module 140, a power management module 141, and a battery 142 , antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, button 190, motor 191, indicator 192, camera 193 , a display screen 194, and a subscriber identification module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, bone conduction sensor 180M, etc.

It can be understood that, the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100 . In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU) Wait. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

Wherein, the controller may be the nerve center and command center of the electronic device 100 . The controller can generate an operation control signal according to the instruction opcode and timing signal, and complete the control of fetching and executing the instruction.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thus improving the efficiency of the system.

The USB interface 130 is an interface conforming to the USB standard specification, specifically, it can be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 can be used to connect a charger to charge the electronic device 100 , and can also be used to transmit data between the electronic device 100 and peripheral devices. It can also be used to connect headphones and play audio through them. This interface can also be used to connect other electronic devices, such as AR devices.

The charging management module 140 is configured to receive a charging input from a charger. Wherein, the charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 can receive charging input from the wired charger through the USB interface 130 . In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100 . While charging the battery 142, the charging management module 140 can also provide power for the electronic device through the power management module 141.

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives the input from the battery 142 and/or the charging management module 140 to provide power for the processor 110 , the internal memory 121 , the external memory, the display screen 194 , the camera 193 , and the wireless communication module 160 .

The wireless communication function of the electronic device 100 can be realized by the antenna 1 , the antenna 2 , the mobile communication module 150 , the wireless communication module 160 , a modem processor, a baseband processor, and the like.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 may be used to cover single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G applied on the electronic device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like. The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves through the antenna 1 for radiation. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be set in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be set in the same device.

A modem processor may include a modulator and a demodulator. Wherein, the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator sends the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal is passed to the application processor after being processed by the baseband processor. The application processor outputs sound signals through audio equipment (not limited to speaker 170A, receiver 170B, etc.), or displays images or videos through display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In some other embodiments, the modem processor may be independent from the processor 110, and be set in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (Wireless Fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), global navigation satellite, etc. applied on the electronic device 100. System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

The electronic device 100 realizes the display function through the GPU, the display screen 194 , and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos and the like. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic light emitting diode or an active matrix organic light emitting diode (active-matrix organic light emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light emitting diodes (quantum dot light emitting diodes, QLED), etc. In some embodiments, the electronic device 100 may include 1 or N display screens 194 , where N is a positive integer greater than 1.

The electronic device 100 can realize the shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, and an application processor.

The ISP is used for processing the data fed back by the camera 193 . For example, when taking a picture, open the shutter, the light is transmitted to the photosensitive element of the camera through the lens, and the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be located in the camera 193 .

Camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects it to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the light signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. DSP converts digital image signals into standard RGB, YUV and other image signals. In some embodiments, the electronic device 100 may include 1 or N cameras 193 , where N is a positive integer greater than 1.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in various encoding formats, for example: moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4 and so on.

The NPU is a neural-network (NN) computing processor. By referring to the structure of biological neural networks, such as the transfer mode between neurons in the human brain, it can quickly process input information and continuously learn by itself. Applications such as intelligent cognition of the electronic device 100 can be realized through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. Such as saving music, video and other files in the external memory card.

The internal memory 121 may be used to store computer-executable program codes including instructions. The processor 110 executes various functional applications and data processing of the electronic device 100 by executing instructions stored in the internal memory 121 . The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data created during the use of the electronic device 100 (such as audio data, phonebook, etc.) and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (universal flash storage, UFS) and the like.

The electronic device 100 can implement audio functions through the audio module 170 , the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playback, recording, etc.

The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be set in the processor 110 , or some functional modules of the audio module 170 may be set in the processor 110 .

Speaker 170A, also referred to as a "horn", is used to convert audio electrical signals into sound signals. Electronic device 100 can listen to music through speaker 170A, or listen to hands-free calls.

Receiver 170B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the electronic device 100 receives a call or a voice message, the receiver 170B can be placed close to the human ear to receive the voice.

The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals.

The earphone interface 170D is used for connecting wired earphones.

The pressure sensor 180A is used to sense the pressure signal and convert the pressure signal into an electrical signal. In some embodiments, pressure sensor 180A may be disposed on display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, and capacitive pressure sensors. A capacitive pressure sensor may be comprised of at least two parallel plates with conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the intensity of pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold acts on the short message application icon, an instruction to view short messages is executed. When a touch operation whose intensity is greater than or equal to the first pressure threshold acts on the icon of the short message application, the instruction of creating a new short message is executed.

The gyro sensor 180B can be used to determine the motion posture of the electronic device 100 . In some embodiments, the angular velocity of the electronic device 100 around three axes (ie, x, y and z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 180B detects the shaking angle of the electronic device 100, calculates the distance that the lens module needs to compensate according to the angle, and allows the lens to counteract the shaking of the electronic device 100 through reverse movement to achieve anti-shake. The gyro sensor 180B can also be used for navigation and somatosensory game scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the electronic device 100 calculates the altitude based on the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.

The magnetic sensor 180D includes a Hall sensor. The electronic device 100 may use the magnetic sensor 180D to detect the opening and closing of the flip leather case. In some embodiments, when the electronic device 100 is a clamshell machine, the electronic device 100 can detect opening and closing of the clamshell according to the magnetic sensor 180D. Furthermore, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set.

The acceleration sensor 180E can detect the acceleration of the electronic device 100 in various directions (generally three axes). When the electronic device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.

The distance sensor 180F is used to measure the distance. The electronic device 100 may measure the distance by infrared or laser. In some embodiments, when shooting a scene, the electronic device 100 may use the distance sensor 180F for distance measurement to achieve fast focusing.

Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes.

The ambient light sensor 180L is used for sensing ambient light brightness. The electronic device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in the pocket, so as to prevent accidental touch.

The fingerprint sensor 180H is used to collect fingerprints. The electronic device 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access to application locks, take pictures with fingerprints, answer incoming calls with fingerprints, and the like.

The temperature sensor 180J is used to detect temperature.

Touch sensor 180K, also known as "touch panel". The touch sensor 180K can be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a “touch screen”. The touch sensor 180K is used to detect a touch operation on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100 , which is different from the position of the display screen 194 .

The bone conduction sensor 180M can acquire vibration signals.

The keys 190 include a power key, a volume key and the like. The key 190 may be a mechanical key. It can also be a touch button. The electronic device 100 can receive key input and generate key signal input related to user settings and function control of the electronic device 100 .

The motor 191 can generate a vibrating reminder.

The indicator 192 can be an indicator light, and can be used to indicate charging status, power change, and can also be used to indicate messages, missed calls, notifications, and the like.

The SIM card interface 195 is used for connecting a SIM card. The SIM card can be connected and separated from the electronic device 100 by inserting it into the SIM card interface 195 or pulling it out from the SIM card interface 195 . The electronic device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The electronic device 100 interacts with the network through the SIM card to implement functions such as calling and data communication. In some embodiments, the electronic device 100 adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the electronic device 100 and cannot be separated from the electronic device 100 .

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions described in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the various embodiments of the application.

Claims

A method for establishing a device connection relationship, characterized in that the method is applied to a communication system, the communication system includes a first electronic device and a second electronic device, the first electronic device is installed with a first application, and the first electronic device is installed with a first application. The second electronic device is installed with an application for providing the first service;

The methods include:

The first electronic device obtains first snapshot information of a first session, the first session is performed by the first electronic device calling one or more electronic devices to provide one or more services through the first application communication, the first snapshot information includes first connection information, and the first connection information includes the device identifier of the second electronic device and the identifier of the first service;

The first electronic device sends a first instruction to the second electronic device according to the first connection information, and the first instruction is used to instruct the second electronic device to provide the first service;

The second electronic device receives the first instruction and provides the first service.
The method according to claim 1, further comprising:

The first electronic device receives a second instruction, the second instruction is used to instruct the first electronic device to call the second electronic device to provide the first service through the first application;

The first electronic device creates the first session and stores the first snapshot information;

The first electronic device sends the first instruction to the second electronic device according to the second instruction.
The method according to claim 1 or 2, wherein the first session has a first session identifier, and the first session identifier consists of the device account of the first electronic device and the application of the first application Identification determination; the first session identification is used for the first electronic device to obtain the first snapshot information;

The first instruction includes the first session identifier.
The method according to any one of claims 1-3, wherein the second electronic device is installed with a second application, the second application is used to provide the first service, and the first connection The information further includes an application identifier of the second application, and the first instruction is used to instruct the second electronic device to run the second application to provide the first service;

The second electronic device provides the first service, and the method includes:

The second electronic device runs the second application to provide the first service.
The method according to any one of claims 1-3, wherein the second electronic device is installed with a second application and a third application, and both the second application and the third application are used to provide The first service, after the second electronic device receives the first instruction, the method further includes:

The second electronic device determines whether the second application is available;

If it is determined that the second application is available, the second electronic device runs the second application to provide the first service;

If it is determined that the second application is unavailable, the second electronic device determines whether the third application is available;

If it is determined that the third application is available, the second electronic device runs the third application to provide the first service.
The method according to any one of claims 1-5, wherein after the second electronic device provides the first service, the method further comprises:

The second electronic device sends first activity information of the application providing the first service to the first electronic device; wherein, the first activity information includes an indicator for indicating that the first service is being provided. The user interface of the application presents the data of the content at a first moment, and the first moment is any moment in the process of providing the first service;

The first electronic device stores the first activity information, and the first activity information is included in the first snapshot information.
The method according to claim 6, wherein after the first electronic device obtains the first snapshot information of the first session, the method further comprises:

The first electronic device sends the first activity information to the second electronic device;

The second electronic device determines, according to the first activity information, the presentation content of the user interface of the application at the initial moment of running the application for providing the first service.
The method according to any one of claims 1-7, wherein the first electronic device is also installed with a fourth application; the method further comprises:

The first electronic device receives a third instruction, and the third instruction is used to instruct the first electronic device to call the electronic device to provide the first service through the fourth application;

The first electronic device searches for the connection information including the identifier of the first service from the snapshot information of one session or multiple sessions, and obtains the first connection information; the one session or multiple sessions are the first Created by an electronic device;

The first electronic device sends a fourth instruction to the second electronic device according to the first connection information, and creates a second session, and stores second snapshot information of the second session; the fourth instruction is used to indicate the The second electronic device provides the first service; the second session is a communication performed by the first electronic device calling one or more electronic devices to provide one or more services through the fourth application; The second snapshot information includes second connection information, and the second connection information includes the device identifier of the second electronic device and the identifier of the first service;

The second electronic device receives the fourth instruction and provides the first service.
The method according to any one of claims 1-8, wherein after the first electronic device obtains the first snapshot information of the first session, the method further comprises:

The first electronic device determines whether the second electronic device is available;

If it is determined that the second electronic device is unavailable, the first electronic device selects a third electronic device from the searched multiple electronic devices, and invokes the third electronic device to provide the first service; The third electronic device is an electronic device that is available among the plurality of electronic devices and can provide the first service.
The method according to claim 9, wherein the first electronic device selects a third electronic device from the searched multiple electronic devices, the method comprising:

The first electronic device selects the third electronic device from the plurality of searched electronic devices according to the first rule, and the third electronic device is available among the plurality of electronic devices and can provide the first The electronic device that serves and has the highest priority; the first rule includes: the priority of the electronic device with the same device account and the same device type as the first electronic device>same as the device account of the first electronic device and The priority of electronic devices with different device types>the priority of electronic devices with different device accounts from the first electronic device but the same device type>the electronic devices with different device accounts and different device types from the first electronic device priority.
The method according to claim 10, characterized in that there are multiple electronic devices with the same device account and different device types of the first electronic device, or different device accounts and different device types from the first electronic device There are multiple electronic devices; the first rule also includes: among multiple electronic devices with different device types, the priority of the electronic device is determined by the privacy degree of the electronic device, and the lower the privacy degree of the electronic device, the lower the privacy degree of the electronic device. The higher the priority; the privacy of the electronic device includes: TV=speaker<tablet<watch=mobile phone.
The method according to any one of claims 1-11, wherein after the first electronic device acquires the first snapshot information of the first session, the method further comprises:

The first electronic device displays options of the second electronic device on the user interface according to the first connection information;

The first electronic device detects a first user operation acting on an option of the second electronic device, and the first user operation is used to trigger the first electronic device to send the first electronic device to the second electronic device. instruction.
The method according to claim 12, wherein after the first electronic device determines whether the second electronic device is available, the method further comprises:

If it is determined that the second electronic device is available, the first electronic device displays the option of the second electronic device as a first state, and the first state is used to indicate that the second electronic device is available;

If it is determined that the second electronic device is unavailable, the first electronic device displays the second electronic device option as a second state, and the second state is used to indicate that the second electronic device is unavailable.
The method according to any one of claims 1-8, wherein the communication system further comprises a fourth electronic device, and the fourth electronic device is installed with an application for providing the second service; the first The snapshot information includes third connection information, the third connection information includes source device information and destination device information, and the source device information in the third connection information includes the device identifier of the second electronic device, the first service The destination device information in the third connection information includes the device identifier of the fourth electronic device and the identifier of the second service;

After the first electronic device obtains the first snapshot information of the first session, the method further includes:

The first electronic device sends the third connection information to the second electronic device;

The second electronic device sends a fifth instruction to the fourth electronic device by using an application providing the first service according to the third connection information, and the fifth instruction is used to instruct the fourth electronic device to provide said second service;

The fourth electronic device receives the fifth instruction and provides the second service.
The method according to claim 14, characterized in that the method further comprises:

The second electronic device receives a sixth instruction, and the sixth instruction is used to instruct the second electronic device to call the fourth electronic device to provide the second service through an application running on the first service;

The second electronic device sends the fifth instruction to the fourth electronic device according to the sixth instruction;

If the second electronic device determines that the mode of opening the application providing the first service is to open it actively, the second electronic device creates a third session and stores third snapshot information of the third session; The active opening means that the electronic device receives a user operation acting on an application to open this application, and starts this application; the third session is the application that the second electronic device provides the first service through calling one or more electronic devices to provide one or more services for communication, the third snapshot information includes the third connection information;

If the second electronic device determines that the mode of opening the application providing the first service is passive opening, the second electronic device sends the third connection information to the first electronic device; the second electronic device sends the third connection information to the first electronic device; An electronic device stores the third connection information; the passive opening means that the electronic device receives an invocation instruction from another electronic device for providing a service, and starts an application for providing the service.
The method according to claim 1-8, wherein the first snapshot information further includes fourth connection information, the fourth connection information includes source device information and destination device information, and the fourth connection information includes The source device information in the fourth connection information includes the device identifier of the second electronic device and the identifier of the first service, and the destination device information in the fourth connection information includes the device identifier of the first electronic device, the first application The application identification;

After the first electronic device obtains the first snapshot information of the first session, the method further includes:

The first electronic device sends the fourth connection information to the second electronic device;

The second electronic device uses the application providing the first service to send a seventh instruction to the first electronic device according to the fourth connection information, and the seventh instruction is used to instruct the first electronic device to call said first application;

The first electronic device compares its first-level identification with the second-level identification of the second electronic device, determines that the first-level identification is lower than the second-level identification, and the first electronic device refuses to respond The seventh instruction: an electronic device in a session has a hierarchical identifier, and the hierarchical identifier of the electronic device is determined by the connection distance between the electronic device and the electronic device that created the session, and is related to the established The farther the connection distance between the electronic devices in the one session is, the higher the level identifier of the one electronic device is.
A method for establishing a device connection relationship, characterized in that the method includes:

The first electronic device acquires first snapshot information of a first session, the first electronic device is installed with a first application, and the first session is for the first electronic device to call one or more Communication performed by an electronic device providing one or more services, the first snapshot information includes first connection information, and the first connection information includes a device identifier of a second electronic device and an identifier of a first service; The second electronic device is installed with an application for providing the first service;

The first electronic device sends a first instruction to the second electronic device according to the first connection information, where the first instruction is used to instruct the second electronic device to provide the first service.
The method according to claim 17, further comprising:

The first electronic device receives a second instruction, the second instruction is used to instruct the first electronic device to call the second electronic device to provide the first service through the first application;

The first electronic device creates the first session and stores the first snapshot information;

The first electronic device sends the first instruction to the second electronic device according to the second instruction.
The method according to claim 17 or 18, wherein the first session has a first session ID, and the first session ID consists of the device account of the first electronic device and the application of the first application Identification determination; the first session identification is used for the first electronic device to obtain the first snapshot information;

The first instruction includes the first session identifier.
The method according to any one of claims 17-19, wherein the second electronic device is installed with a second application, the second application is used to provide the first service, and the first connection The information further includes an application identifier of the second application, and the first instruction is used to instruct the second electronic device to run the second application to provide the first service.
The method according to any one of claims 17-20, wherein the method further comprises:

The first electronic device receives and stores the first activity information sent by the second electronic device, the first activity information is included in the first snapshot information; the first activity information includes the second electronic device In the process of providing the first service, it is used to indicate that the user interface of the application providing the first service presents content data at a first moment; the second electronic device provides the first service at the first moment at any point in the process.
The method according to claim 21, wherein after the first electronic device obtains the first snapshot information of the first session, the method further comprises:

The first electronic device sends the first activity information to the second electronic device; the first activity information is used to determine the initial moment when the second electronic device runs the application that provides the first service. Presentation content of the user interface of the application.
The method according to claim 17-22, wherein the first electronic device is further installed with a fourth application; the method further comprises:

The first electronic device receives a third instruction, and the third instruction is used to instruct the first electronic device to call the electronic device to provide the first service through the fourth application;

The first electronic device searches for the connection information including the identifier of the first service from the snapshot information of one session or multiple sessions, and obtains the first connection information; the one session or multiple sessions are the first Created by an electronic device;

The first electronic device sends a fourth instruction to the second electronic device according to the first connection information, and creates a second session, and stores second snapshot information of the second session; the fourth instruction is used to indicate the The second electronic device provides the first service; the second session is a communication performed by the first electronic device calling one or more electronic devices to provide one or more services through the fourth application; The second snapshot information includes second connection information, and the second connection information includes the device identifier of the second electronic device and the identifier of the first service.
The method according to any one of claims 17-23, wherein after the first electronic device obtains the first snapshot information of the first session, the method further comprises:

The first electronic device determines whether the second electronic device is available;

If it is determined that the second electronic device is unavailable, the first electronic device selects a third electronic device from the searched multiple electronic devices, and invokes the third electronic device to provide the first service; The third electronic device is an electronic device that is available among the plurality of electronic devices and can provide the first service.
The method according to claim 24, wherein the first electronic device selects a third electronic device from the searched multiple electronic devices, the method comprising:

The first electronic device selects the third electronic device from the plurality of searched electronic devices according to the first rule, and the third electronic device is available among the plurality of electronic devices and can provide the first The electronic device that serves and has the highest priority; the first rule includes: the priority of the electronic device with the same device account and the same device type as the first electronic device>same as the device account of the first electronic device and The priority of electronic devices with different device types>the priority of electronic devices with different device accounts from the first electronic device but the same device type>the electronic devices with different device accounts and different device types from the first electronic device priority.
The method according to claim 25, characterized in that there are multiple electronic devices with the same device account and different device types for the first electronic device, or different device accounts and different device types from the first electronic device There are multiple electronic devices; the first rule also includes: among multiple electronic devices with different types of devices, the priority of the electronic device is determined by the privacy degree of the electronic device, the lower the privacy degree of the electronic device, the higher the priority of the electronic device. The higher the priority; the privacy of the electronic device includes: TV=speaker<tablet<watch=mobile phone.
The method according to any one of claims 17-26, wherein after the first electronic device acquires the first snapshot information of the first session, the method further comprises:

The first electronic device displays options of the second electronic device on the user interface according to the first connection information;

The first electronic device detects a first user operation acting on an option of the second electronic device, and the first user operation is used to trigger the first electronic device to send the first electronic device to the second electronic device. instruction.
The method according to claim 27, wherein after the first electronic device determines whether the second electronic device is available, the method further comprises:

If it is determined that the second electronic device is available, the first electronic device displays the option of the second electronic device as a first state, and the first state is used to indicate that the second electronic device is available;

If it is determined that the second electronic device is unavailable, the first electronic device displays the second electronic device option as a second state, and the second state is used to indicate that the second electronic device is unavailable.
The method according to any one of claims 17-23, wherein the first snapshot information further includes third connection information, the third connection information includes source device information and destination device information, and the first The source device information in the third connection information includes the device identifier of the second electronic device and the first service identifier, and the destination device information in the third connection information includes the device identifier of the fourth electronic device and the second service identifier. the identification of; the fourth electronic device is installed with an application for providing the second service;

After the first electronic device obtains the first snapshot information of the first session, the method further includes:

The first electronic device sends the third connection information to the second electronic device; the third connection information enables the second electronic device to send the fourth electronic device information to the fourth electronic device through the application that provides the first service. The device sends a fifth instruction, where the fifth instruction is used to instruct the fourth electronic device to provide the second service.
The method according to claim 17-23, wherein the first snapshot information further includes fourth connection information, the fourth connection information includes source device information and destination device information, and the fourth connection information includes The source device information in the fourth connection information includes the device identifier of the second electronic device and the identifier of the first service, and the destination device information in the fourth connection information includes the device identifier of the first electronic device, the first application the application identifier;

After the first electronic device obtains the first snapshot information of the first session, the method further includes:

The first electronic device sends the fourth connection information to the second electronic device; the fourth connection information enables the second electronic device to send the first electronic service to the first electronic device through the application that provides the first service. The device sends a seventh instruction, where the seventh instruction is used to instruct the first electronic device to invoke the first application;

The first electronic device receives the seventh instruction, compares its own first-level identification with the second-level identification of the second electronic device, and determines that the first-level identification is lower than the second-level identification, The first electronic device refuses to respond to the seventh instruction; an electronic device in a session has a hierarchical identification, and the hierarchical identification of the electronic device is established between the electronic device and the electronic device that created the session The connection distance is determined, and the farther the connection distance with the electronic device creating the one session is, the higher the level identification of the one electronic device is.
A communication system, characterized in that the communication system includes at least a first electronic device and a second electronic device, wherein the first electronic device and the second electronic device cooperate to perform any one of claims 1-16 method described in the item.
An electronic device, characterized in that the electronic device includes: a communication device, a memory, and a processor, the memory is used to store a computer program, and the processor is used to call the computer program so that the electronic device executes the rights The method of any one of claims 17-30.
A computer-readable storage medium, comprising instructions, wherein, when the instructions are run on an electronic device, the electronic device is made to execute the method described in any one of claims 17-30.