CN109815032B - Communication method, device and storage medium - Google Patents
Communication method, device and storage medium Download PDFInfo
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- CN109815032B CN109815032B CN201910067849.3A CN201910067849A CN109815032B CN 109815032 B CN109815032 B CN 109815032B CN 201910067849 A CN201910067849 A CN 201910067849A CN 109815032 B CN109815032 B CN 109815032B
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Abstract
The application provides a communication method, a communication device and a storage medium, wherein the method comprises the following steps: in response to the received display information of the target application associated with the first screen device, determining a port identification of a second screen device associated with the target application; inquiring the equipment address corresponding to the port identification based on the corresponding relation established in advance; and sending the display information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device. According to the method and the device, communication between the first screen device and the second screen device can be achieved, application limitation of a communication scheme is broken through, the situation that the system broadcast message cannot be received due to reasons such as disconnection of the second screen device can be avoided, and communication quality between the first screen device and the second screen device can be improved to a certain extent.
Description
Technical Field
The present application relates to the field of terminal device technologies, and in particular, to a communication method, an apparatus, and a storage medium.
Background
An existing multi-screen cashier system may include a main screen device and at least one sub-screen device, and each of the screen devices corresponds to an APK (Android Package). When information needs to be presented through multiple screens, it is common for a primary screen device to communicate with a secondary screen based on a manner of system broadcast. However, this solution requires the APKs of the main screen device and the sub-screen device to be in one system, otherwise, the system broadcast message cannot be sent, and thus communication cannot be performed.
Disclosure of Invention
In view of the above, the present application provides a communication method, apparatus and storage medium, which can solve the above problems in the prior art.
Specifically, the method is realized through the following technical scheme:
according to a first aspect of the present application, a communication method is provided, including:
in response to the received display information of the target application associated with the first screen device, determining a port identification of a second screen device associated with the target application;
inquiring the equipment address corresponding to the port identification based on the corresponding relation established in advance;
and sending the display information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device.
In an embodiment, the determining the port identifier of the second screen device associated with the target application includes:
acquiring a screen array for representing currently available screen equipment;
determining a port identification of a second screen device associated with the target application based on the screen array.
In an embodiment, the determining, based on the screen array, a port identifier of a second screen device associated with the target application includes:
and if the numerical value in the screen array is greater than 1, determining the port identification of the second screen device associated with the target application.
In an embodiment, before querying, based on the pre-constructed correspondence, the device address corresponding to the port identifier, the method further includes:
receiving a preset message broadcasted by a second screen device to a local area network, wherein the preset message comprises a port identifier of a second screen device associated target application and a device address of the second screen device;
and establishing a corresponding relation between the port identification and the equipment address.
In an embodiment, before sending the presentation information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device, the method further includes:
establishing a long connection between the first screen device and the second screen device based on the device address.
According to a second aspect of the present application, there is provided a communication apparatus comprising:
the port identification determining module is used for responding to the received display information of the target application associated with the first screen device and determining the port identification of the second screen device associated with the target application;
the device address query module is used for querying a device address corresponding to the port identifier based on a pre-constructed corresponding relationship;
and the display information sending module is used for sending the display information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device.
In one embodiment, the port identification determination module further comprises:
the screen array determining unit is used for acquiring a screen array used for representing currently available screen equipment;
and the port identification determining unit is used for determining the port identification of the second screen device related to the target application based on the screen array.
In an embodiment, the port identifier determining unit is further configured to determine the port identifier of the second screen device associated with the target application when the value in the screen array is greater than 1.
In one embodiment, the apparatus further comprises: a corresponding relation establishing module;
the corresponding relation establishing module comprises:
the device address receiving unit is used for receiving a preset message broadcasted by a second screen device to a local area network, wherein the preset message comprises a port identifier of a target application associated with the second screen device and a device address of the second screen device;
and the corresponding relation establishing unit is used for establishing the corresponding relation between the port identification and the equipment address.
In one embodiment, the apparatus further comprises:
and the long connection establishing module is used for establishing long connection between the first screen device and the second screen device based on the device address.
According to a third aspect of the present application, a computer-readable storage medium is proposed, the storage medium storing a computer program for executing the communication method of any one of the above.
According to the technical scheme, the port identification of the second screen device associated with the target application is determined in response to the received display information of the target application associated with the first screen device, the device address corresponding to the port identification is inquired based on the pre-established corresponding relation, and then the display information is sent to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device, so that the communication between the first screen device and the second screen device can be realized, and because the first screen device is not required to send the system broadcast message to the second screen device, the APKs of the first screen device and the second screen device are not required to be in the same system, the application limitation of the communication scheme can be broken through, and the communication with the second screen device is carried out based on the long connection, therefore, the situation that the system broadcast message cannot be received due to reasons such as disconnection of the second screen device and the like can be avoided, and the communication quality between the first screen device and the second screen device can be improved to a certain extent.
Drawings
FIG. 1 is a flow chart illustrating a method of communication according to an exemplary embodiment of the present application;
FIG. 2 is a flow chart illustrating how the port identification of the second screen device associated with the target application is determined in accordance with an exemplary embodiment of the present application;
FIG. 3A is a flow chart illustrating a method of communication according to yet another exemplary embodiment of the present application;
FIG. 3B is a diagram illustrating a multi-screen communication process according to an exemplary embodiment of the present application;
fig. 4 is a block diagram illustrating a communication device according to an exemplary embodiment of the present application;
fig. 5 is a block diagram of a communication device according to another exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first cryptographic signature information may also be referred to as second cryptographic signature information, and similarly, the second cryptographic signature information may also be referred to as the first cryptographic signature information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
An existing multi-screen cashier system may include a main screen device and at least one sub-screen device, and each of the screen devices corresponds to an APK (Android Package). When information needs to be presented through multiple screens, it is common for a primary screen device to communicate with a secondary screen based on a manner of system broadcast.
However, the basic idea that the above solution can be implemented is that the APKs of the main screen device and the sub-screen device are in one system, and if the APKs are not in one system, the APKs cannot transmit system broadcast messages, and thus communication between the main screen device and the sub-screen device cannot be implemented. In addition, in the above scheme, the secondary screen device may not receive the system broadcast message of the primary screen device due to a dropped connection or the like, and communication between the primary screen device and the secondary screen device may be affected to a great extent.
In view of the above, the present application is directed to provide a communication method, apparatus and storage medium, which can solve the problem that the existing multi-screen communication scheme needs to rely on a system broadcast manner, and improve the quality of communication between a main screen device and a sub-screen device.
Fig. 1 is a flow chart illustrating a communication method according to an exemplary embodiment of the present application. Among them, this embodiment can be applied to a main screen device of a multi-screen cash register system. As shown in fig. 1, the method comprises the following steps S101-S103:
in step S101: in response to receiving presentation information of a target application associated with a first screen device, determining a port identification of a second screen device associated with the target application.
In an embodiment, when a first screen device (e.g., a primary screen device) receives presentation information for a target service, a port identification of a second screen device (e.g., a secondary screen device) associated with the target application may be determined.
In an embodiment, the type of the target application may be set by a developer according to actual business needs, for example, set to a menu display service, an order settlement service, and the like, which is not limited in this embodiment.
In an embodiment, the background service process of the first screen device may receive the presentation information of the target application, and determine a port identifier of the second screen device associated with the target application.
In an embodiment, the port identifier of the second screen device uniquely corresponds to the second screen device.
In an embodiment, the manner of determining the port identifier of the second screen device associated with the target application can also be referred to the following embodiment shown in fig. 2, which is not described in detail herein.
In step S102: and inquiring the equipment address corresponding to the port identification based on the corresponding relation constructed in advance.
In an embodiment, after the first screen device determines the port identifier of the second screen device associated with the target application, the device address corresponding to the port identifier may be queried based on a pre-constructed correspondence.
The corresponding relation is the relation between the port identifier of the second screen device associated with the target application and the device IP.
In an embodiment, the correspondence may be pre-constructed and stored in the first screen device, and then, after the background service process of the first screen device determines the port identifier of the second screen device, the device address corresponding to the port identifier may be queried from the locally stored correspondence.
In an embodiment, the corresponding relationship may be constructed as shown in the following fig. 3A, which is not described in detail herein.
In step S103: and sending the display information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device.
In an embodiment, after querying a device address corresponding to the port identifier, the first screen device may send the presentation information to the second screen device corresponding to the device address based on a pre-established long connection between the first screen device and the second screen device.
In an embodiment, the type of the long connection may be preset by a developer according to actual service needs, for example, the type of the long connection is set to be a Socket long connection, an HTTP long connection, and the like, which is not limited in this embodiment.
In an embodiment, after the background service process of the first screen device sends the presentation information to the second screen device corresponding to the device address, the presentation information may be synchronously presented with the second screen device through a front-end process.
In one embodiment, the long connection can be constructed as shown in fig. 3A, which will not be described in detail.
As can be seen from the above description, in this embodiment, by determining, in response to received presentation information of a target application associated with a first screen device, a port identifier of a second screen device associated with the target application, and querying, based on a pre-established correspondence relationship, a device address corresponding to the port identifier, and further sending, based on a pre-established long connection between the first screen device and the second screen device, the presentation information to the second screen device corresponding to the device address, communication between the first screen device and the second screen device can be implemented, because it is not necessary to rely on the first screen device to send a system broadcast packet to the second screen device, it is not necessary that APKs of the first screen device and the second screen device are in the same system, application limitations of a communication scheme can be broken, and because communication is performed with the second screen device based on the long connection, therefore, the situation that the system broadcast message cannot be received due to reasons such as disconnection of the second screen device and the like can be avoided, and the communication quality between the first screen device and the second screen device can be improved to a certain extent.
FIG. 2 is a flow chart illustrating how the port identification of the second screen device associated with the target application is determined in accordance with an exemplary embodiment of the present application; on the basis of the above embodiments, the present embodiment takes an example of how to determine the port identifier of the second screen device associated with the target application. As shown in fig. 2, the determining the port identifier of the second screen device associated with the target application in step S101 may include the following steps S201 to S202:
in step S201, a screen array for characterizing currently available screen devices is acquired.
In step S202, a port identifier of a second screen device associated with the target application is determined based on the screen array.
In one embodiment, the screen array used to characterize the currently available screen devices may be obtained based on the screen Manager Display Manager.
In an embodiment, the screen Manager Display Manager may include a Display Manager service in an existing Android System. Android provides a Display management service displaymanager service from version 4.2, supports the mirror image Display of a plurality of displays of a plurality of Display types, including a built-in Display type (local), an HDMI Display type and a WIFI Display protocol (miraast), and realizes the mirror image Display of local equipment on a remote Display.
In one embodiment, all currently active Display devices may be determined through an external interface provided by the DisplayManager, such as "public Display [ ] getDisplays ()", i.e., a screen array is obtained that characterizes the currently available screen devices.
In an embodiment, the value in the screen array is used to indicate the number of screens displaying the presentation information, and if the value in the screen array is greater than 1, it may be determined that the presentation information is displayed on both the first screen device and the second screen device, so that the operation of determining the port identifier of the second screen device associated with the target application may be performed.
On the contrary, if the value in the screen array is not greater than 1 (i.e., less than or equal to 1), it may be determined that the presentation information is only presented on the first screen device, and thus the operation of determining the port identifier of the second screen device associated with the target application is not required.
It should be noted that, for the use manner of the screen Manager Display Manager and the determination manner of the port identifier of the second screen device, reference may be made to explanation and description in the prior art, which is not limited in this embodiment.
As can be seen from the above description, in this embodiment, by obtaining a screen array for representing a currently available screen device, and then determining a port identifier of a second screen device associated with the target application based on the screen array, adaptive identification of the port identifier of the second screen device can be achieved, so as to lay a foundation for subsequent communication between the first screen device and the second screen device.
FIG. 3A is a flow chart illustrating a method of communication according to yet another exemplary embodiment of the present application; among other things, this embodiment may be applied to a first screen device of a multi-screen cashier system. As shown in fig. 1, the method comprises the following steps S301-S306:
in step S301, a preset message broadcasted by the second screen device to the local area network is received.
The preset message includes a port identifier of the second screen device associated target application and a device address of the second screen device.
In an embodiment, as shown in fig. 3B, after the second screen device 100 is started, the second screen device may be connected to a gateway device (not shown) through the lan 200, and further the gateway device may send the preset message to at least one device (including the first screen device) in the lan 200.
It should be noted that, in this embodiment, the second screen device sends the local area network packet to the first screen device instead of the system packet, so that it is not necessary that the APKs of the first screen device and the second screen device are in the same system, and the application limitation of the communication scheme can be broken through.
It can be understood that, if the APKs of the first screen device and the second screen device are in the same system, the second screen device may also send a system message to the first screen device, which is not limited in this embodiment.
In step S302, a corresponding relationship between the port identifier and the device address is established.
In an embodiment, after the first screen device receives a preset message broadcasted by the second screen device into the local area network, the port identifier of the second screen device associated with the target application and the device address of the second screen device may be obtained from the preset message, and then the corresponding relationship between the port identifier and the device address may be established.
In an embodiment, after the first screen device receives a preset message, the first screen device may obtain, from the preset message, a port identifier of a second screen device associated with a target application and a device address of the second screen device, and may further determine whether a corresponding relationship between the port identifier and the device address is stored locally; if it is determined that the correspondence between the port identifier and the device address is not stored locally, the correspondence may be stored locally for use in the subsequent step S305.
In step S303, a long connection between the first screen device and the second screen device is established based on the device address.
In an embodiment, as shown in fig. 3B, after the first screen device 300 acquires the device address from the preset message broadcast by the second screen device 100, a long connection with the second screen device 100 may be established based on the device address, so as to be used in the subsequent step S306.
In step S304, in response to the received presentation information of the target application associated with the first screen device, a port identifier of a second screen device associated with the target application is determined.
In step S305, based on the pre-constructed correspondence, the device address corresponding to the port identifier is queried.
In step S306, the display information is sent to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device.
For the explanation and description of steps S304-S306, reference may be made to the above embodiments, which are not repeated herein.
As can be seen from the above description, the present embodiment receives the preset message broadcasted by the second screen device into the lan, the preset message includes a port identifier of the second screen device associated target application and a device address of the second screen device, and establishes a corresponding relationship between the port identifier and the device address, and establishing a long connection between the first screen device and the second screen device based on the device address, can lay a foundation for inquiring the device address corresponding to the port identification based on the corresponding relation and sending the display information to the second screen device based on the established long connection, can break through the application limitation of the communication scheme, moreover, the situation that the system broadcast message can not be received due to the reason that the second screen device is disconnected and the like can be avoided, the communication quality between the first screen device and the second screen device can be improved to a certain extent.
Corresponding to the embodiment of the communication method, the application also provides an embodiment of the communication device.
Fig. 4 is a block diagram illustrating a communication device according to an exemplary embodiment of the present application; as shown in fig. 4, the apparatus includes: a port identification determining module 110, a device address querying module 120, and a presentation information sending module 130, wherein:
a port identifier determining module 110, configured to determine, in response to the received presentation information of the target application associated with the first screen device, a port identifier of a second screen device associated with the target application;
the device address query module 120 is configured to query, based on a pre-established correspondence, a device address corresponding to the port identifier;
a display information sending module 130, configured to send the display information to the second screen device corresponding to the device address based on a pre-established long connection between the first screen device and the second screen device.
As can be seen from the above description, in this embodiment, by determining, in response to received presentation information of a target application associated with a first screen device, a port identifier of a second screen device associated with the target application, and querying, based on a pre-established correspondence relationship, a device address corresponding to the port identifier, and further sending, based on a pre-established long connection between the first screen device and the second screen device, the presentation information to the second screen device corresponding to the device address, communication between the first screen device and the second screen device can be implemented, because it is not necessary to rely on the first screen device to send a system broadcast packet to the second screen device, it is not necessary that APKs of the first screen device and the second screen device are in the same system, application limitations of a communication scheme can be broken, and because communication is performed with the second screen device based on the long connection, therefore, the situation that the system broadcast message cannot be received due to reasons such as disconnection of the second screen device and the like can be avoided, and the communication quality between the first screen device and the second screen device can be improved to a certain extent.
Fig. 5 is a block diagram of a communication device according to another exemplary embodiment of the present application. The port identifier determining module 230, the device address querying module 240, and the display information sending module 250 have the same functions as the port identifier determining module 110, the device address querying module 120, and the display information sending module 130 in the foregoing embodiment shown in fig. 4, and are not described herein again.
As shown in fig. 5, the port identification determining module 230 may further include:
a screen array determining unit 231, configured to obtain a screen array for representing currently available screen devices;
a port identifier determining unit 232, configured to determine, based on the screen array, a port identifier of a second screen device associated with the target application.
In an embodiment, the port identifier determining unit 232 may be further configured to determine the port identifier of the second screen device associated with the target application when the value in the screen array is greater than 1.
In an embodiment, the apparatus may further include: a correspondence relationship establishing module 210;
the correspondence relationship establishing module 210 may include:
a device address receiving unit 211, configured to receive a preset message broadcasted by a second screen device into a local area network, where the preset message includes a port identifier of a target application associated with the second screen device and a device address of the second screen device;
a corresponding relationship establishing unit 212, configured to establish a corresponding relationship between the port identifier and the device address.
In an embodiment, the apparatus may further comprise:
a long connection establishing module 220, configured to establish a long connection between the first screen device and the second screen device based on the device address.
On the other hand, the present application also provides a computer-readable storage medium, which stores a computer program for executing the communication method provided by the embodiment shown in fig. 1 to 3B.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (9)
1. A communication method is characterized in that the method is applied to a multi-screen cash register system, and each screen device in the multi-screen cash register system corresponds to an APK; the method comprises the following steps:
in response to the received display information of the target application associated with the first screen device, determining a port identification of a second screen device associated with the target application; the type of the target application comprises menu display service and order settlement service;
inquiring the equipment address corresponding to the port identification based on the corresponding relation established in advance;
sending the display information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device;
the APK corresponding to the first screen device and the APK corresponding to the second screen device are not in one system;
before querying the device address corresponding to the port identifier based on the pre-constructed correspondence, the method further includes:
receiving a preset message broadcasted by a second screen device to a local area network, wherein the preset message comprises a port identifier of a second screen device associated target application and a device address of the second screen device; the preset message comprises a local area network message; if the APKs of the first screen device and the second screen device are in the same system, the preset message further comprises a system message;
and establishing a corresponding relation between the port identification and the equipment address.
2. The method of claim 1, wherein determining the port identification of the second screen device associated with the target application comprises:
acquiring a screen array for representing currently available screen equipment;
determining a port identification of a second screen device associated with the target application based on the screen array.
3. The method of claim 2, wherein determining the port identification of the second screen device associated with the target application based on the screen array comprises:
and if the numerical value in the screen array is greater than 1, determining the port identification of the second screen device associated with the target application.
4. The method of claim 1, wherein before sending the presentation information to the second screen device corresponding to the device address based on a pre-established long connection between the first screen device and the second screen device, the method further comprises:
establishing a long connection between the first screen device and the second screen device based on the device address.
5. The communication device is applied to a multi-screen cash register system, wherein each screen device in the multi-screen cash register system corresponds to an APK; the device comprises:
the port identification determining module is used for responding to the received display information of the target application associated with the first screen device and determining the port identification of the second screen device associated with the target application; the type of the target application comprises menu display service and order settlement service;
the device address query module is used for querying a device address corresponding to the port identifier based on a pre-constructed corresponding relationship;
the display information sending module is used for sending the display information to the second screen device corresponding to the device address based on the pre-established long connection between the first screen device and the second screen device;
the APK corresponding to the first screen device and the APK corresponding to the second screen device are not in one system;
the device further comprises: a corresponding relation establishing module;
the corresponding relation establishing module comprises:
the device address receiving unit is used for receiving a preset message broadcasted by a second screen device to a local area network, wherein the preset message comprises a port identifier of a target application associated with the second screen device and a device address of the second screen device; the preset message comprises a local area network message; if the APKs of the first screen device and the second screen device are in the same system, the preset message further comprises a system message;
and the corresponding relation establishing unit is used for establishing the corresponding relation between the port identification and the equipment address.
6. The apparatus of claim 5, wherein the port identification determination module further comprises:
the screen array determining unit is used for acquiring a screen array used for representing currently available screen equipment;
and the port identification determining unit is used for determining the port identification of the second screen device related to the target application based on the screen array.
7. The apparatus of claim 6, wherein the port identifier determining unit is further configured to determine the port identifier of the second screen device associated with the target application when the value in the screen array is greater than 1.
8. The apparatus of claim 5, further comprising:
and the long connection establishing module is used for establishing long connection between the first screen device and the second screen device based on the device address.
9. A computer-readable storage medium, characterized in that the storage medium stores a computer program for executing the communication method according to any one of the preceding claims 1 to 4.
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| CN111464839A (en) * | 2020-03-17 | 2020-07-28 | 南京创维信息技术研究院有限公司 | Main and auxiliary screen system capable of displaying auxiliary information |
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