WO2022228076A1

WO2022228076A1 - Automatic printing method and electronic device

Info

Publication number: WO2022228076A1
Application number: PCT/CN2022/085616
Authority: WO
Inventors: 成闻博; 时锐; 谢存; 宋连祥; 潘锦玲; 高仲; 刘建军
Original assignee: 华为技术有限公司
Priority date: 2021-04-30
Filing date: 2022-04-07
Publication date: 2022-11-03
Also published as: CN115268802A

Abstract

The present application relates to the technical field of terminals, and provides an automatic printing method and an electronic device. The present application can enable a user to automatically and quickly print by simply putting the electronic device close to a printing device, i.e., according to a current interface of the electronic device. The whole process requires no additional operation of the user or requires only a few of operations of the user, and thus user experience is relatively high. The method comprises: when the electronic device detects that there is a printing device within a certain distance from the printing device, determining that a foreground application is a non-desktop application and is an application in a white list library, thereby automatically determining print content, and automatically sending the print content to the printing device for printing.

Description

An automatic printing method and electronic device

This application claims the priority of the Chinese patent application with the application number 202110485882.5 and the invention title "An automatic printing method and electronic device", which was submitted to the State Intellectual Property Office on April 30, 2021, the entire contents of which are incorporated herein by reference Applying.

technical field

The embodiments of the present application relate to the technical field of terminals, and in particular, to an automatic printing method and an electronic device.

Background technique

With the promotion of online education and telecommuting, users have an increasingly strong demand for mobile printing. The current mobile printing is mainly based on two schemes, one is to print through the printing service provided by the operating system of the electronic device, and the other is to print through a third-party printing application or printing applet. However, this will require the user to operate more steps, resulting in inconvenience for the user, time-consuming, and low user experience. Therefore, how to provide a convenient and quick automatic printing method and electronic equipment has become our demand.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present application provides an automatic printing method and electronic device. The technical solution provided by the present application can enable the user to automatically and quickly print according to the current interface of the electronic device only by bringing the electronic device close to the printing device; this process requires only a small amount of user operation or no additional user operation; the user experience is relatively low. high.

In order to achieve the above-mentioned technical purpose, the embodiments of the present application provide the following technical solutions:

In a first aspect, an automatic printing method is provided, which is applied to an electronic device. The method includes: within a certain distance of the printing device, the electronic device detects the printing device and establishes a communication connection with the printing device. After the foreground application of the electronic device is a non-desktop application and belongs to a preset whitelist library, the electronic device automatically obtains the print content according to the current interface of the foreground application. In response to the received user input, all or part of the print is selected and the electronic device sends all or part of the selected print to the printing device; alternatively, the electronic device automatically sends the print to the printing device. Alternatively, the electronic device automatically sends the print content to the printing device.

The foreground application is an application corresponding to the current interface of the electronic device. Exemplarily, the interface of which application is currently displayed on the display screen of the electronic device is the foreground application.

In some embodiments, the electronic device uses the queried application package name to determine the application package name included in the registered whitelist, and then determines that the foreground application is a whitelisted application. Wherein, the whitelist is a registered list of applications supporting printing services.

In some embodiments, the electronic device and the printing device can support one or more of the NFC touch discovery function, the Bluetooth proximity discovery function, the proximity discovery function of the IEEE 802.11 protocol, the general smart sensor hub discovery function, etc.; based on One or more of the above functions supported by both, the electronic device and the printing device can discover each other. After the electronic device detects the printing device and automatically obtains the printing content according to the foreground application interface, in response to the user's operation, the electronic device can determine part or all of the content selected by the user as the content to be printed and send to the printing device. Or, in response to the user's operation, it is determined to send the interface screenshot file to the printing device as the content to be printed. Alternatively, the electronic device directly sends the acquired print content to the printing device for printing.

In this way, after detecting the printing device, the electronic device can automatically identify the foreground application interface and determine the content to be printed, and printing can be realized without additional user operation or only a small amount of user operation.

According to the first aspect, after the foreground application of the electronic device is a desktop application, the method further includes: in response to another user input received, at least one display element supporting printing in the current interface of the desktop application is selected, and the electronic device sends The printing device sends the selected display element; or, the electronic device automatically sends a screenshot of the current interface of the desktop application to the printing device.

In some embodiments, the electronic device determines that the foreground application is the system desktop (that is, the desktop application) according to the package name of the determined foreground application, so it cannot directly determine the content that the user needs to print, and needs to receive a message that the user selects the print content on the desktop application display interface. operate. The print content selected by the user is at least one display element that supports printing in the current desktop application display interface, and the display element may be a control, an icon, or the like displayed on the interface. Or, detecting the user's operation of opening another application on the desktop application to select a file, and determining the content to be printed. Or, the electronic device screenshots the display interface of the current foreground application, and determines the screenshot file as the content to be printed.

In this way, when the foreground application is a desktop application, the electronic device can also automatically obtain the print content, ensuring that the user can perform convenient printing with fewer operations in various scenarios.

According to the first aspect, or any implementation manner of the above first aspect, according to the current interface of the foreground application, the electronic device automatically obtains the print content; including: after the current interface supports the printing service, determining the print content corresponding to the current interface, and The print content is automatically acquired; the print content is at least one display content included in the current interface that supports printing.

In some embodiments, the number of print contents supported by the display interface of the foreground application is one or more. For example, if the foreground application is a music application, and the current display interface is a music playback interface, it is assumed that the music playback interface supports displaying lyrics pictures and album cover pictures. Then, the printed content that can be acquired by the electronic device is the lyrics picture and/or the album cover picture. Further, the print content acquired by the electronic device may be the display content being displayed on the current interface, or may be the display content that is not displayed on the current interface but supports printing.

In this way, the electronic device can automatically obtain all or part of the display content supported by the display interface for printing according to the display interface, so as to meet the printing requirements of the user.

According to the first aspect, or any implementation manner of the above first aspect, the electronic device automatically obtains the print content according to the current interface of the foreground application; including: after the current interface does not support the printing service, determining that the screenshot of the current interface is the print content , and get the print content automatically.

In this way, in the case that the electronic device determines that the current interface does not support the printing service, it can also obtain the printing content by taking a screenshot, realize automatic printing, and meet the printing demand of the user.

According to the first aspect, or any implementation manner of the above first aspect, the method further includes: the electronic device sends a query message to the foreground application through a print service run by the electronic device. The print service receives the query response sent by the foreground application. According to the query response, the electronic device obtains the print content.

In some embodiments, after detecting the printing device, the electronic device invokes the printing service to determine the printing content. A communication connection for transmitting signals is established between the printing service and the foreground application, and based on the communication connection, the information exchange between the printing service and the foreground application is realized. For example, obtain the print content and related information of the print content.

According to the first aspect, or any one of the implementation manners of the above first aspect, after the query response includes an identifier of the content displayed in the current interface, the current interface supports a printing service, and the identifier is used to indicate at least one display that supports printing included in the current interface. content. After the query response does not contain the identifier of the content displayed in the current interface, the current interface does not support the printing service.

In some embodiments, after receiving and parsing the query response sent by the foreground application, the print service can determine whether the current display interface supports printing services, and which printing services are supported. For example, the print service determines, according to the identifier of the display content, that the foreground application supports printing the display content corresponding to the representation. For example, if the query response includes an identifier of the lyrics image (eg, contentname), the print service determines that the current interface supports printing the lyrics image.

In this way, the electronic device can quickly determine the print content to be printed according to the identifier carried in the query response, thereby improving the efficiency of automatically identifying the print content.

According to the first aspect, or any implementation manner of the above first aspect, after the electronic device automatically acquires the print content, the method further includes: the electronic device prompts the print content.

In some embodiments, after determining the print content, the electronic device displays a print interface for prompting the user to check whether the print content is correct and whether to confirm the print, so as to avoid abnormal printing caused by misoperation. For example, if the user accidentally triggers the printing process (for example, accidentally touching the NFC area of the printing device to establish a connection with the printing device), the current user may choose not to print. Or, after determining the print content, the electronic device prompts the print content. For example, the electronic device prompts the user that the current electronic device needs to print by means of voice prompts, vibration prompts, etc., and confirms whether to execute the print job.

According to the first aspect, or any implementation manner of the above first aspect, the electronic device prompts the print content; including: the electronic device displays a print content confirmation interface.

In this way, the electronic device receives the user's confirmation operation by displaying the confirmation interface, so as to ensure the security of the printing operation. Wherein, the determination operation may include, for example, a preset gesture operation on the display screen such as clicking on a confirmation control (such as a "start printing" control), double-clicking the display screen, etc., or may also include preset operations such as double-clicking the volume key, double-clicking the back shell of the mobile phone, etc., Alternatively, it may also include an operation of automatically confirming after waiting for a preset period of time. The specific type of the determination operation is not specifically limited in this embodiment of the present application.

According to the first aspect, or any implementation manner of the above first aspect, in response to the received user input, all or part of the print content is selected, and the electronic device sends all or part of the selected print content to the printing device ; comprising: the electronic device receives the first user input. In response to the first user input received by the electronic device, all or part of the print content is selected. The electronic device receives the second user input. In response to the second user input received by the electronic device, the electronic device transmits all or part of the selected print content to the printing device. Wherein, the user input includes a first user input and a second user input.

In some embodiments, the number of prints is plural. After acquiring the plurality of print contents, the electronic device displays selection information of the plurality of print contents for the user to select and confirm, that is, to receive the user's first user input. After it is determined that the user needs to print part or all of the print content, the corresponding print content information is obtained, and then a second user input operation of the user is received to determine to send the print content to the printing device.

In this way, by detecting the user's input, it is ensured that the print content meets the user's requirements, and the printing security is ensured, so that the final print result can meet the user's expectation.

According to the first aspect, or any implementation manner of the above first aspect, in response to the received user input, the electronic device automatically sends the print content to the printing device; including: the electronic device receives the second user input. In response to the second user input received by the electronic device, the electronic device automatically sends the print content to the printing device. Wherein, the user input includes a second user input.

In some embodiments, the number of prints is one. After acquiring the print content, the electronic device sends the acquired print content to the printing device directly in response to the user's operation for determining printing.

In other embodiments, the number of print contents is one or more, and after acquiring the one or more print contents, the electronic device sends the one or more print contents to the printing device after detecting that the user has determined the printing operation. to print.

In this way, after the electronic device determines that the user's determination operation is received, the electronic device sends the print content to the printing device for printing, which can ensure the security of printing.

According to the first aspect, or any implementation manner of the above first aspect, the method further includes: the electronic device runs a printing service and a printing module. The electronic device sends all or part of the selected printing content to the printing device; including: the electronic device sends all or part of the printing content to the printing device through a printing service and a printing module.

In some embodiments, the printing module may contain one or more plug-ins in the electronic device corresponding to the printing device. After the printing service detects the printing device, it can automatically call the printing module corresponding to the printing device to process the printing business, so as to realize automatic printing.

In a second aspect, an electronic device is provided. The electronic device includes: a processor, a memory and a computer program, wherein the computer program is stored in the memory, and when the computer program is executed by the processor, the electronic device executes: within a certain distance of the printing device, the electronic device detects the printing device , and establish a communication connection with the printing device. After the foreground application of the electronic device is a non-desktop application and belongs to a preset whitelist library, the electronic device automatically obtains the print content according to the current interface of the foreground application. In response to the received user input, all or part of the print is selected and the electronic device sends all or part of the selected print to the printing device; alternatively, the electronic device automatically sends the print to the printing device. Alternatively, the electronic device automatically sends the print content to the printing device.

According to the second aspect, the electronic device further performs: after the foreground application of the electronic device is a desktop application, in response to another user input received, at least one display element supporting printing in the current interface of the desktop application is selected, and the electronic device The selected display element is sent to the printing device; or, the electronic device automatically sends a screenshot of the current interface of the desktop application to the printing device.

According to the second aspect, or any implementation manner of the above second aspect, according to the current interface of the foreground application, the electronic device automatically obtains the print content; including: after the current interface supports the printing service, determining the print content corresponding to the current interface, and The print content is automatically acquired; the print content is at least one display content included in the current interface that supports printing.

According to the second aspect, or any implementation manner of the above second aspect, according to the current interface of the foreground application, the electronic device automatically obtains the print content; including: after the current interface does not support the printing service, determining that the screenshot of the current interface is the print content , and get the print content automatically.

According to the second aspect, or any implementation manner of the above second aspect, the electronic device further executes: the electronic device sends a query message to the foreground application through a print service run by the electronic device. The print service receives the query response sent by the foreground application. According to the query response, the electronic device obtains the print content.

According to the second aspect, or any implementation manner of the above second aspect, after the query response includes an identifier of the content displayed in the current interface, the current interface supports a printing service, and the identifier is used to indicate at least one display that supports printing included in the current interface. content. After the query response does not contain the identifier of the content displayed in the current interface, the current interface does not support the printing service.

According to the second aspect, or any implementation manner of the above second aspect, after the electronic device automatically acquires the print content, the electronic device further executes: the electronic device prompts the print content.

According to the second aspect, or any implementation manner of the above second aspect, the electronic device prompts the print content; including: the electronic device displays a print content confirmation interface.

According to the second aspect, or any one implementation of the above second aspect, in response to the received user input, all or part of the print content is selected, and the electronic device sends all or part of the selected print content to the printing device ; comprising: the electronic device receives the first user input. In response to the first user input received by the electronic device, all or part of the print content is selected. The electronic device receives the second user input. In response to the second user input received by the electronic device, the electronic device transmits all or part of the selected print content to the printing device. Wherein, the user input includes a first user input and a second user input.

According to the second aspect, or any implementation manner of the above second aspect, in response to the received user input, the electronic device automatically sends the print content to the printing device; including: the electronic device receives the second user input; in response to the electronic device With the received second user input, the electronic device automatically sends the print content to the printing device; wherein the user input includes the second user input.

According to the second aspect, or any implementation manner of the above second aspect, the electronic device further performs: the electronic device runs a printing service and a printing module. The electronic device sends all or part of the selected printing content to the printing device; including: the electronic device sends all or part of the printing content to the printing device through a printing service and a printing module.

For the technical effects corresponding to the second aspect and any implementation manner of the second aspect, reference may be made to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which will not be repeated here.

In a third aspect, an embodiment of the present application provides an electronic device, the electronic device has the function of implementing the automatic printing method described in the first aspect and any of the possible implementation manners. This function can be implemented by hardware, or can also be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

For the technical effects corresponding to the third aspect and any implementation manner of the third aspect, reference may be made to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which will not be repeated here.

In a fourth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program (also referred to as instructions or codes), which when executed by an electronic device, causes the electronic device to perform the method of the first aspect or any one of the embodiments of the first aspect.

For the technical effects corresponding to the fourth aspect and any implementation manner of the fourth aspect, reference may be made to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which will not be repeated here.

In a fifth aspect, an embodiment of the present application provides a computer program product that, when the computer program product runs on an electronic device, enables the electronic device to execute the first aspect or the method of any one of the implementations of the first aspect.

For the technical effects corresponding to the fifth aspect and any implementation manner of the fifth aspect, reference may be made to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which will not be repeated here.

In a sixth aspect, an embodiment of the present application provides a circuit system, where the circuit system includes a processing circuit, and the processing circuit is configured to execute the method of the first aspect or any one of the implementation manners of the first aspect.

For the technical effects corresponding to the sixth aspect and any implementation manner of the sixth aspect, reference may be made to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which will not be repeated here.

In a seventh aspect, an embodiment of the present application provides a chip system, including at least one processor and at least one interface circuit, where the at least one interface circuit is configured to perform a transceiving function and send instructions to the at least one processor. When executing the instructions, at least one processor performs the method of the first aspect or any one of the embodiments of the first aspect.

For the technical effects corresponding to the seventh aspect and any implementation manner of the seventh aspect, reference may be made to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which will not be repeated here.

Description of drawings

1 is a schematic diagram one of an interface provided by an embodiment of the present application;

FIG. 2 is a schematic diagram 2 of an interface provided by an embodiment of the present application;

3 is a schematic diagram three of an interface provided by an embodiment of the present application;

4 is a schematic diagram of a scene of an automatic printing method provided by an embodiment of the present application;

5A is a schematic structural diagram 1 of an electronic device provided by an embodiment of the present application;

5B is a schematic block diagram of a software structure of an electronic device provided by an embodiment of the present application;

FIG. 6 is a flowchart 1 of an automatic printing method provided by an embodiment of the present application;

7 is a flowchart 2 of an automatic printing method provided by an embodiment of the present application;

FIG. 8 is a fourth schematic diagram of an interface provided by an embodiment of the present application;

FIG. 9 is a schematic diagram five of the interface provided by the embodiment of the present application;

10 is a schematic diagram of a communication framework provided by an embodiment of the present application;

FIG. 11 is a sixth schematic diagram of an interface provided by an embodiment of the present application;

FIG. 12 is a flowchart three of the automatic printing method provided by the embodiment of the present application;

13A is a seventh schematic diagram of an interface provided by an embodiment of the present application;

FIG. 13B is the eighth schematic diagram of the interface provided by the embodiment of the present application;

14 is a schematic diagram 9 of an interface provided by an embodiment of the present application;

15 is a fourth flowchart of the automatic printing method provided by the embodiment of the present application;

FIG. 16 is a schematic diagram ten of an interface provided by an embodiment of the present application;

FIG. 17 is a second 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 below with reference to the accompanying drawings in the embodiments of the present application. Wherein, in the description of the embodiments of the present application, the terms used in the following embodiments are only for the purpose of describing specific embodiments, and are not intended to be used as limitations of the present application. As used in the specification of this application and the appended claims, the singular expressions "a," "an," "the," "above," "the," and "the" are intended to include Such expressions as "one or more" unless the context clearly dictates otherwise. It should also be understood that, in the following embodiments of the present application, "at least one" and "one or more" refer to one or more than two (including two).

References in this specification to "one embodiment" or "some embodiments" and the like mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically emphasized otherwise. The terms "including", "including", "having" and their variants mean "including but not limited to" unless specifically emphasized otherwise. The term "connected" includes both direct and indirect connections unless otherwise stated. "First" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features.

In the embodiments of the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described in the embodiments of the present application as "exemplarily" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "such as" is intended to present the related concepts in a specific manner.

In some scenarios, the electronic device can be connected to a printer to send the content to be printed to the printer for printing, and the electronic device needs to receive the user's selection to determine the content to be printed.

In some embodiments, some applications (such as a gallery, etc.) in the electronic device are supported by an operating system (such as

etc.) to print.

Exemplarily, when a user wants to print an album cover image during the process of playing music by using a music application, the user needs to save the album cover image before printing. The interface 101 shown in Fig. 1 (a), after the electronic device (such as a mobile phone) detects the user's long-pressing operation of the picture 11, the interface 102 shown in Fig. 1 (b) is displayed to determine whether the user saves the picture (ie album cover image). After detecting that the user clicks the "save picture" control 12, it is determined to save the album cover picture. After that, the user needs to find the save location of the album cover in the file system before printing. As shown in the interface 201 in FIG. 2(a), the electronic device opens the gallery application in response to the user operation, and saves the album cover image to be printed (such as the image indicated by mark 21) in the gallery application. After detecting the operation of the user clicking on the picture indicated by the mark 21, the electronic device opens the album cover picture to display the interface 202 shown in (b) of FIG. 2 . After detecting that the user clicks on the "more" control 22, more edit categories are displayed. After detecting that the user clicks the "print or generate PDF" control 23, the print interface is invoked, and the interface 203 shown in FIG. 2(c) is displayed. After detecting that the user clicks on the "select printer" control 24, an interface 204 as shown in (d) of FIG. 2 is displayed. Finally, after detecting that the user clicks the "printer A" control 25, it is determined to send the album cover image to the printer A for printing.

It can be seen that, in the above printing scheme, only some application programs that support the printing interface of the operating system can apply the printing scheme. During the printing process, the user needs to perform multiple operations, and the user needs to clearly determine the storage location of the content to be printed, which makes the operation difficult for the user. Moreover, in the above printing process, personalized options such as image editing, correction, and filters are not rich enough, and the printing function is single.

In other embodiments, a third-party printing application or applet is installed in the electronic device, and printing can be performed by using the application or applet.

Exemplarily, as with the above printing solution, currently printing is performed using a third-party printing application or applet, and the content to be printed also needs to be saved first. Assuming that it is still the scene of printing the album cover picture, the electronic device uses the method shown in FIG. 1 to save the album cover picture. Then, as shown in the interface 301 in (a) of FIG. 3, the electronic device starts the third-party printing application display interface 301 in response to the user's operation, and after detecting the user's operation of clicking the "Gallery Print" control 31, determines that the user needs After printing the picture, it is necessary to detect the content to be printed selected by the user. The interface 302 shown in FIG. 3(b) detects that the user clicks the “select picture” control 32 and clicks the “OK” control 33. After confirming that the user chooses to print the picture, the display is displayed as shown in FIG. 3(c). The display interface 303 is displayed, and after detecting that the user clicks on the "printer A" control 34, it is determined that the user selects the printer A for picture printing, and the picture selected by the user is sent to the printer A for printing.

It can be seen that in this printing solution, the user needs to download a corresponding application program and start the application program first. In addition, multiple operations are also required during the printing process, and the user is required to clearly determine the storage location of the content to be printed, which makes the operation difficult for the user.

Therefore, the embodiments of the present application provide an automatic printing method, in which the electronic device can automatically identify the content displayed in the foreground, and automatically determine whether the content displayed in the foreground supports printing. User experience.

FIG. 4 is a schematic scene diagram of an automatic printing method provided by an embodiment of the present application. As shown in FIG. 4 , the electronic device 100 has established a communication connection with the printing device 200 . Exemplarily, the electronic device 100 establishes a wireless communication connection with the printing device 200 . The electronic device 100 may send the to-be-printed file on the electronic device 100 to the printing device 200 for printing through the wireless communication connection with the printing device 200 .

The electronic device 100 may establish a wireless communication connection with the printing device 200 through a wireless communication technology. The wireless communication technologies include, but are not limited to, at least one of the following: near field communication (NFC), Bluetooth (BT) (for example, traditional Bluetooth or bluetooth low energy (BLE) Bluetooth) ), wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Zigbee (Zigbee), frequency modulation (FM), infrared (IR), etc.

In some embodiments, both the electronic device 100 and the printing device 200 support the proximity discovery function. Exemplarily, both the electronic device 100 and the printing device 200 can realize the proximity discovery function through NFC sensing. After the electronic device 100 approaches the printing device 200, the electronic device 100 and the printing device 200 can discover each other, and then establish a wireless communication connection such as a Wi-Fi peer-to-peer (P2P) connection and a Bluetooth connection. After that, the electronic device 100 identifies the current interface, automatically determines the print content according to the current interface, and sends the print content to the printing device 200 for printing, which effectively reduces user operations.

In some embodiments, the electronic device 100 and the printing device 200 establish a wireless communication connection through a local area network. For example, both the electronic device 100 and the printing device 200 are connected to the same router.

In some embodiments, the electronic device 100 and the printing device 200 establish a wireless communication connection through a cellular network, the Internet, or the like. For example, the printing device 200 is connected to the Internet through a router, and the electronic device 100 is connected to the Internet through a cellular network; further, the electronic device 100 and the printing device 200 establish a wireless communication connection.

Illustratively, the electronic device 100 includes, but is not limited to, smartphones, tablet computers, wearable devices (eg, smart watches, smart bracelets, smart glasses), laptop computers (Laptops), and personal digital assistants (PDAs). ), in-vehicle devices, virtual reality (VR) devices, augmented reality (AR) devices, artificial intelligence (AI) devices, etc. The operating system installed on the electronic device 100 includes but is not limited to

or other operating systems. In some embodiments, the electronic device 100 may be a stationary device or a portable device. This application does not limit the specific type of the electronic device 100 and the installed operating system.

Exemplarily, the printing device 200 may be an electronic device having a printing function. The printing apparatus 200 may install an operating system. The operating system installed on the printing device 200 includes but is not limited to

or other operating systems. The printing apparatus 200 may not have an operating system installed. This application does not limit the specific type of the printing apparatus 200, whether an operating system is installed, or the type of the operating system when the operating system is installed.

Exemplarily, FIG. 5A shows a schematic structural diagram of the electronic device 100 . As shown in FIG. 5A , the electronic device 100 may include a processor 110 , an external memory interface 120 , an internal memory 121 , a universal serial bus (USB) interface 130 , a charge 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, Sensor Module 180, Key 190, Motor 191, Indicator 192, Camera 193, Display Screen 194, and Subscriber Identification Module , SIM) card interface 195 and so on.

It can be understood that the structures illustrated in the embodiments of the present application do 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 less components than shown, or combine some components, or separate some components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units. For example, the processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video Codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors. The controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions. A memory may also be provided in the processor 110 for storing instructions and data.

In some embodiments, the processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / or universal serial bus (universal serial bus, USB) interface, etc. The USB interface 130 is an interface that conforms to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like.

It can be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only a schematic illustration, and does not constitute a structural limitation of the electronic device 100 .

The charging management module 140 is used to receive charging input from the charger. The charger may be a wireless charger or a wired charger. While the charging management module 140 charges the battery 142 , it can also supply power to the electronic device through the power management module 141 . In some other embodiments, the power management module 141 may also be provided in the processor 110 . In other embodiments, the power management module 141 and the charging management module 140 may also be provided in the same device.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, the 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 a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G etc. applied on the electronic device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA) and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110 .

The wireless communication module 160 can provide applications on the electronic device 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellites System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication (near field communication, NFC), Zigbee (ZigBee), infrared (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 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .

In some embodiments, the antenna 1 of the electronic device 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code Division Multiple Access (WCDMA), Time Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc. The GNSS may include global positioning system (global positioning system, GPS), global navigation satellite system (global navigation satellite system, GLONASS), Beidou navigation satellite system (beidou navigation satellite system, BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite based augmentation systems (SBAS).

The electronic device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. The GPU is 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 alter display information.

Display screen 194 is used to display images, videos, and the like. 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 diode (quantum dot light emitting diodes, QLED) and so on. In some embodiments, the electronic device 100 may include one or M display screens 194 , where M is a positive integer greater than one.

In some embodiments, the display screen 194 of the electronic device 100 displays an interface, and the electronic device 100 can use the processor 110 to automatically identify the display content, and display the content according to the internal memory 121 , the external memory connected to the external memory interface 120 , or the processor 110 . The application whitelist stored in the memory determines whether the currently displayed application supports automatic identification printing. When automatic identification printing is supported, the electronic device 100 can determine the print content selected by the user according to the user's voice input and/or touch input, and use the wireless communication module 160 to send the print content to the printing device 200 for printing.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, 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 realize the data storage function. For example to save files like music, video etc in external memory card.

Internal memory 121 may be used to store computer executable program code, which includes instructions. The internal memory 121 may include a storage program area and a storage data area. The storage program area can store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like. The storage data area may store data (such as audio data, phone book, etc.) created during the use of the electronic device 100 and the like.

P of the SIM card interface 195 is a positive integer greater than 1.

The software system of the electronic device 100 may adopt a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture. The embodiments of the present application take an Android system with a layered architecture as an example to exemplarily describe the software structure of the electronic device 100 . Exemplarily, FIG. 5B shows a software structural block diagram of the electronic device 100 provided by the embodiment of the present application.

The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Layers communicate with each other through software interfaces. In some embodiments, the Android system is divided into four layers, which are, from top to bottom, an application layer, an application framework layer, an Android runtime (Android runtime) and a system library, and a kernel layer.

The application layer can include a series of application packages.

As shown in Fig. 5B, the application package may include applications such as printing service, printing module, WLAN, camera, gallery, calling, navigation, Bluetooth, video, etc.

In some embodiments, the printing service may be provided by a Huawei Hilink-enabled application (eg, a smart life application (application, APP)). The printing service can also be a separate Huawei Hilink-enabled application. After the electronic device discovers the printing device by means of proximity discovery, it automatically invokes the printing service to process the printing business. Among them, Huawei Hilink provides a way to join the open ecosystem of smart hardware for various smart devices. Electronic devices can be added to the Huawei Hilink ecosystem through hardware access or cloud access to realize interconnection of electronic devices and interconnection between applications within electronic devices.

It should be noted that the embodiment of the present application uses the Huawei Hilink ecosystem as an example to describe the automatic printing method provided by the embodiment of the present application. The automatic printing method can also be applied in other ecological environments that support intelligent communication between applications.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions.

As shown in FIG. 5B, the application framework layer may include a window manager, a content provider, a view system, a telephony manager, a resource manager, and a notification manager, among others. A window manager is used to manage window programs. The window manager can get the size of the display screen, determine whether there is a status bar, lock the screen, take screenshots, etc. Content providers are used to store and retrieve data and make these data accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phone book, etc. The view system includes visual controls, such as controls for displaying text, controls for displaying pictures, and so on. View systems can be used to build applications. A display interface can consist of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide the communication function of the electronic device 100 . For example, the management of call status (including connecting, hanging up, etc.). The resource manager provides various resources for the application, such as localization strings, icons, pictures, layout files, video files and so on. The notification manager enables applications to display notification information in the status bar, which can be used to convey notification-type messages, and can disappear automatically after a brief pause without user interaction. For example, the notification manager is used to notify download completion, message reminders, etc. The notification manager can also display notifications in the status bar at the top of the system in the form of graphs or scroll bar text, such as notifications of applications running in the background, and notifications on the screen in the form of dialog windows. For example, text information is prompted in the status bar, a prompt sound is issued, the electronic device vibrates, and the indicator light flashes.

Android Runtime includes core libraries and a virtual machine. Android runtime is responsible for scheduling and management of the Android system. The core library consists of two parts: one is the function functions that the java language needs to call, and the other is the core library of Android.

The application layer and the application framework layer run in virtual machines. The virtual machine executes the java files of the application layer and the application framework layer as binary files. The virtual machine is used to perform functions such as object lifecycle management, stack management, thread management, safety and exception management, and garbage collection.

A system library can include multiple functional modules. For example: surface manager (surface manager), media library (Media Libraries), 3D graphics processing library (eg: OpenGL ES), 2D graphics engine (eg: SGL), etc. The Surface Manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications. The media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc. The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, compositing, and layer processing. A 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is the layer between hardware and software. The kernel layer contains at least display drivers, camera drivers, audio drivers, and sensor drivers.

The following embodiments are all described by taking the printing device 200 as a printer as an example.

Exemplarily, FIG. 6 is a schematic diagram of an automatic printing method provided by an embodiment of the present application. As shown in Figure 6, the method may include S601-S609:

S601. The electronic device detects a printing device.

In some embodiments, the electronic device and the printer can support NFC touch discovery function, Bluetooth proximity discovery function, proximity discovery function of Institute of Electrical and Electronics Engineers (IEEE) 802.11 protocol, general smart sensor One or more of a hub (sensorHub) discovery function, etc.; the electronic device and the printing device can discover each other based on one or more of the above-mentioned functions supported by both.

For example, the electronic device and/or the printer turns on the NFC function, and the electronic device discovers the printer after the electronic device approaches or touches the NFC sensing area on the printer.

S602, the electronic device identifies the foreground application.

In some embodiments, the electronic device needs to confirm the foreground application displayed on the current display interface to determine whether the electronic device can automatically determine the print content in the current scenario. For example, use the UsageStatsManager class for foreground application identification. The UsageStatsManager class is a tool in the Android system for statistical management of the usage of electronic devices; it can query the usage history of electronic devices (such as an application currently opened) and statistical information, and then obtain the current foreground application. Package name to identify different foreground applications. The package name of the application is unique in the Android system and can be used as the unique identifier of the application.

Exemplarily, as shown in the automatic printing method shown in FIG. 7 , the electronic device may include, for example, a printing service, a foreground application, and a printing module. After the electronic device discovers the printer through touch discovery, proximity discovery, etc., the printing service is started. As shown in S701, the print service identifies the foreground application. For example, the printing service determines that the foreground application is the system desktop, or determines that the foreground application is a music application. Among them, the printing service can be called through the startService method.

It should be noted that, in the case of split-screen display or floating window display, the electronic device determines that the application is a foreground application by detecting the application corresponding to the position where the user operation was most recently received. For example, the electronic device displays Application 1 and Application 2 on a split screen, and the electronic device determines that the foreground application is Application 1 if the most recent user's operation is a touch operation on the display area corresponding to Application 1 .

S603, the electronic device determines whether the foreground application is the system desktop. If yes, that is, the foreground application is the system desktop, then go to S604; if not, that is, the foreground application is not the system desktop, go to S605.

In some embodiments, the electronic device uses the queried application package name to determine whether the application package name is the system desktop package name, and then determines whether the foreground application is the system desktop. That is, it is determined whether the foreground application is a desktop application.

Exemplarily, as shown in S702 in FIG. 7 , the electronic device can determine whether the foreground application is the system desktop by invoking the print service. As shown in FIG. 8 , when the electronic device displays the main interface, it is determined that the currently displayed foreground application is the system desktop, and the following S604 needs to be performed.

In this way, the electronic device can automatically identify the content displayed on the front-end interface, and select different ways of processing the printing service according to the content displayed on the different interface, thereby providing the user with a more flexible printing method.

S604, the electronic device detects the print content selected by the user.

In some embodiments, if the electronic device determines that the foreground application is the system desktop, it cannot directly determine the content that the user needs to print, and needs to receive the user's operation of selecting print content on the desktop application display interface. The print content selected by the user is at least one display element that supports printing in the current desktop application display interface, and the display element may be a control, an icon, or the like displayed on the interface. Therefore, as shown in FIG. 7 , the electronic device needs to execute S703 and S704.

S703, the print service invokes the print module.

S704. The printing module receives the print content to be printed selected by the user.

Exemplarily, in S703-S704, after determining that the foreground application is the system desktop, the printing service calls or starts the printing module, and the printing module receives the printing content determined by the user. Among them, the print service can call the print module across processes through the Android interface definition language (AIDL). AIDL cross-process call is one of the common cross-process interface call methods in Android. It requires both apps to hold the same AIDL file at the same time, and by binding the services of both parties, the cross-process interface call can be realized. In addition, for the method for determining the print content by the user, reference may be made to the methods described in FIG. 1 to FIG. 3 above, and details are not described herein again. Or, in other scenarios, the electronic device directly takes a screenshot of the current desktop application display interface, and uses the screenshot of the display interface as the print content to be printed.

S605. The electronic device determines whether the foreground application is a whitelisted application. If no, that is, the foreground application is not a whitelisted application, execute S606; if yes, that is, the foreground application is a whitelisted application, execute S607.

In some embodiments, if the electronic device determines that the foreground application is not the system desktop, it needs to further determine whether the foreground application is a whitelisted application, that is, whether to support automatic identification and printing. The whitelist may be a whitelist library for storing registered application package names, and the whitelist may be preset in the electronic device; or the electronic device may request the server to download the whitelist when inquiring. The whitelist can include the package name of the registered application. The electronic device can check whether the whitelist contains the package name of the current foreground application to determine whether the current foreground application is a registered application that supports automatic identification and printing.

Exemplarily, as shown in S705 in FIG. 7 , whether the foreground application is a whitelisted application may be determined by the print service. Specifically, the print service uses the package name of the foreground application obtained in S701 to perform configuration file matching in the whitelist to determine whether the foreground application exists in the whitelist, and then determines whether the foreground application is a whitelist application.

In some embodiments, before S605, the application needs to perform whitelist registration. For example, in the process of configuring the configuration file on the developer website, the application developer registers the package name to determine that the current application is allowed to support the automatic identification printing service. The server receives the registration information and generates a white list for the electronic device to download. The electronic device may periodically update the download whitelist, or query the whitelist online, or periodically download the registration information of newly registered applications.

Exemplarily, an application whitelist is shown as follows, and the registered applications in the application whitelist include:

applications and word processing systems

application.

S606, the electronic device determines that the print content is the content of the screenshot of the display interface.

In some embodiments, the electronic device determines that the foreground application is not an application in the whitelist, determines that the foreground application does not support automatic identification and printing, and further determines that a screenshot of the current display interface needs to be printed.

Exemplarily, S705 and S706 are shown in FIG. 7 .

S705, the print service determines whether the foreground application is a whitelisted application.

S706, the print service sends the screenshot of the current display interface to the print module.

In some embodiments, the print service determines that the foreground application is not a whitelisted application, and uses the SurfaceControl.screenshot interface in the Android system to take a screenshot and save the screenshot file. After that, send the uniform resource identifier (URI) of the saved screenshot file to the printing module through the AIDL cross-process call.

The URI is used to represent the corresponding data reference to be operated. After receiving the URI, the printing module can determine the corresponding screenshot file storage location according to the URI, that is, obtain the access authority of the screenshot file, and then obtain the screenshot file for printing. For example, content:\/\/cn.netease.cloudmusic.fileprovider\/external_storage_root\/test\/Test1.png is an example of a URI.

Exemplarily, as shown in interface 901 in FIG. 9 , the electronic device is displaying

In the process of using the chat interface 901, if a printer is detected, the printing service is invoked to execute the above S701-S705. The print service determines that the foreground application corresponding to the current interface 901 is

application, and it is not a whitelisted application, a screenshot 91 is generated, and the URI of the saved location of the screenshot 91 is sent to the printing module, so that the printing module can print the current display interface.

In this way, even if the foreground application is not a whitelisted application, the user does not need to perform multiple operations to achieve automatic printing, which reduces the difficulty of the user's operation.

S607, the electronic device determines whether the display interface supports the printing service. If not, that is, the display interface does not support the printing service, then go to S606; if yes, that is, the display interface supports the printing service, go to S608.

In some embodiments, the foreground application is a whitelisted application and supports the printing service, but the foreground application may include multiple display interfaces, and the display content of some display interfaces may support the printing service, and the display content of some display interfaces may not support the printing service, then The electronic device needs to further obtain the specific print content supported by the display interface of the foreground application to realize printing.

In some embodiments, if the print service determines that the foreground application is a whitelisted application, it needs to establish a communication connection with the foreground application to determine whether the current display interface of the foreground application supports the printing service and obtain the supported print content information.

Exemplarily, S707 is shown in FIG. 7 .

S707, the print service establishes a communication connection with the foreground application.

In some embodiments, the print service and the foreground application may establish a communication connection for transmitting signals based on the Android lightweight messenger inter-process communication method.

Exemplarily, as shown in FIG. 10 , between the print service 101 and the foreground application 102 , the Binder entity 1011 and the Binder entity 1012 are used to establish a communication connection between the two, so as to transmit the interaction information in the subsequent steps. Further, a handler (Handle) 1013 for processing interactive information is configured on the print service 101 side, for example, for processing messages that can be sent to the foreground application 102 or the printing module. The foreground application 102 is provided with a handler (Handle) 1014 for processing interactive information, for example, for processing messages that can be sent to the print service 101 .

In this way, the electronic device realizes the information interaction between the printing service and the foreground application by establishing the communication connection as shown in FIG. 10 .

Optionally, the above S607 may be implemented as S708-S711 as shown in FIG. 7 .

S708, the print service sends query information to the foreground application.

In some embodiments, the printing service uses the communication connection with the foreground application to send query information to the foreground application, where the query information is used to query whether the current display interface of the foreground application supports the printing service. The query information may include, for example, the package name (clientName) of the printing service and the printing business ID (businessID).

The package name of the print service is used to notify the foreground application of the current request message, and the print service identifier may be 0 (or described as 0x00) by default. The query information can also be described as an APP page print business (APPB) request message. The print service encapsulates the APPB request message in a preset encapsulation manner, and through the communication connection established in the above S707, encapsulates the encapsulated APPB Request messages to be transmitted across processes. Correspondingly, the foreground application receives the APPB request message. The preset encapsulation manner may include, for example, encapsulating in sequence with JSON object (or XML), Bundle and Message.

Exemplarily, an APPB request message is shown as follows.

S709, the foreground application parses the query information, and determines the supported printing service.

In some embodiments, after receiving the query information, the foreground application parses the query information. For example, parse Message, Bundle, and JSON Object in turn to obtain the package name and print service ID of the print service. According to the package name of the print service and the print service identifier, the foreground application determines a list of print services supported by the content displayed on the current display interface, and generates a query response.

In some embodiments, the query response can also be described as an APPB response message, and the query response is used to notify the printing service of the printing services currently supported by the display interface. ), the name of the foreground application interface (foregroundName), and the list of supported printing services (contentlist). The list of supported printing services may include, for example, a content code (contentId), a content name (contentname), and a content type (fileType). The value of the content type field is used to indicate the format of the printed content. For example, the value of the fileType field is 0, which is used to indicate that the format of the print content is the image format. For another example, the value of the fileType field is 1, which is used to indicate that the format of the print content is the document format. The value of the above fileType field and its meaning are only exemplary descriptions, which are not specifically limited in this embodiment of the present application.

Exemplarily, an APPB response message is shown as follows.

S710. The foreground application sends a query response to the print service.

In some embodiments, after the foreground application generates the query response, the query response is encapsulated in a preset encapsulation manner (such as JSON Object, Bundle and Message encapsulation manner), and is transmitted across processes through the communication connection established in the above S707. Accordingly, the print service receives the query response.

S711, the print service determines whether the display interface supports the print service.

In some embodiments, after receiving the query response, the print service parses the query response. For example, by analyzing Message, Bundle, and JSON Object in turn, and according to the length of the contentlist field, it can be determined whether the current display interface supports printing services, and which printing services are supported. For example, if the length of the contentlist field is 0, it means that the display interface does not support printing services. Or, the print service determines whether the current interface supports the print service according to whether the query response contains the identifier of the displayed content. For example, after the query response includes an identifier of the display content in the current interface, the current interface supports the printing service, and the identifier is used to indicate at least one display content included in the current interface that supports printing. After the query response does not contain the identifier of the content displayed in the current interface, the current interface does not support the printing service.

Exemplarily, the print service parses the query response in the example in S709, and determines, according to the content of the contentlist field, that the display interface of the current foreground application supports printing lyrics pictures.

In this way, the electronic device determines whether the display interface supports the printing service through the above-mentioned S708-S711. If the printing service is supported, the electronic device can further obtain the printing content, that is, execute the following S608; if the printing service is not supported, the electronic device executes the above-mentioned S606, That is, take a screenshot of the display interface, and determine that the print content is the content of the screenshot.

Exemplarily, as shown in FIG. 7 , S712 is the same as S706 above, and the print service determines that the current display interface does not support the printing service, and sends a screenshot of the current display interface to the printing module. Correspondingly, after receiving the screenshot, the printing module determines that the print content to be printed is the screenshot content.

S608, the electronic device determines the print content of the display interface.

In some embodiments, after determining the printing service supported by the current display interface, the electronic device needs to further determine the printing content corresponding to the printing service supported by the current display interface, and the printing content is at least one display content that supports printing included in the current display interface. For example, if the printing service supported by the current display interface is lyric pictures, the electronic device needs to further obtain the lyrics and picture information of the song being played on the current display interface to realize printing.

Optionally, as shown in FIG. 7 , S608 may be implemented as the following S713-S716.

S713, the print service sends a print content request to the foreground application.

In some embodiments, the print service uses the communication connection with the foreground application to send a print content request to the foreground application, where the print content request is used to request print content information of the print service supported by the current interface of the foreground application. The print content request may include, for example, the package name of the print service (clientName), the print service ID (businessID), the print content ID (contIdId), the print content type (fileType), and the maximum supported print quantity (maxFileNum). The print service ID can be 0 by default. The print content request can also be described as an application interface data (APP page data, APPD) request message. The print service encapsulates the APPD request message in a preset encapsulation method (such as JSON Object, Bundle and Message encapsulation methods), and passes the above S707 The communication connection established in the process is transmitted across the process. Correspondingly, the foreground application receives the APPD request message.

Exemplarily, an APPD request message is shown as follows.

S714: The foreground application parses the print content request, and determines the print content information.

In some embodiments, after receiving the print content request, the foreground application parses the print content request. For example, parse Message, Bundle, and JSON Object in turn to obtain the package name (clientName), printing business ID (businessID), printing content ID (contIdId), printing content type (fileType), and maximum supported print quantity (maxFileNum) of the printing service. . Further, the print content information to be printed is determined, and a print content response is generated. The print content information includes, for example, URI data of the print content.

In some embodiments, the print content response can also be described as an APPD response message, the print content response is used to inform the print service of URI data of the current print content, ie, the print service is allowed to access the print content. The print content response may include, for example, a foreground application package name (serverName), a print service ID (businessID), a print content ID (contIdId), a print content type (fileType), a print content number (maxFileNum), and a print content file list (fileList). The print content file list (fileList) may include, for example, a file number (index), a file format (format), a file status (status), a file URI (fileUriStr), a file path (filePath), and a file size (fileSize).

Exemplarily, an APPD response message is shown as follows.

S715. The foreground application sends a print content response to the print service.

In some embodiments, after the front-end application generates the print content response, the print content response is encapsulated in a preset encapsulation method (such as JSON Object, Bundle and Message encapsulation methods), and cross-process transmission is performed through the communication connection established in the above S707 . Accordingly, the print service receives the print content response.

S716, the print service parses the print content response, and obtains print content information.

In some embodiments, after receiving the print content response, the print service parses the print content response. For example, parse Message, Bundle, and JSON Object in turn to obtain print content information, such as the information in the file list.

In this way, the electronic device determines the print content information to be printed on the display interface of the foreground application through the above S713-S716, and obtains the access authority, so as to be able to execute subsequent printing tasks.

S609, the electronic device displays a print interface, detects a user's determination operation, and prints the corresponding print content.

In some embodiments, after determining the print content information, the electronic device displays a print interface for prompting the user to check whether the print content is correct and whether to confirm the print, so as to avoid abnormal printing caused by misoperation. For example, if the user accidentally triggers the above S601, the current user may choose not to print. Or, after determining the print content, the electronic device prompts the print content. For example, the electronic device prompts the user that the current electronic device needs to print by means of voice prompts, vibration prompts, etc., and confirms whether to execute the print job.

It should be noted that, as shown in FIG. 6 , the print content determined in S609 is the print content included in the print content determined in the above S604 , S606 , or S608 . That is, the electronic device executes S604 and then executes S609, or the electronic device executes S606 and then executes S609, or the electronic device executes S608 and then executes S609.

Exemplarily, as shown in FIG. 7 , S609 may be implemented as the following S717 and S718.

S717, the print service sends print content information to the print module.

In some embodiments, after acquiring the printing information, the printing service sends the printing information to the printing module, so that the printing module obtains the permission to access the printing content, thereby realizing printing.

For example, the print service takes the URI of the data information content to be printed as a parameter, and passes it to the print module through AIDL cross-process calls.

S718, the print module prints the corresponding print content in response to the user's determination operation.

In some embodiments, after receiving the print content information, the print module accesses the print content, displays a confirmation interface, and receives a user's confirmation operation on the print content. If the confirmation operation is received, the corresponding print content will be sent to the printer for printing.

Exemplarily, as shown in the interface 1101 shown in (a) of FIG. 11 , the interface 1101 is used to display the contents of the gallery. Assuming that the electronic device discovers the printer by touch to discover in the process of displaying the interface 1101 , the printing service is invoked, and the methods shown in FIG. 6 and FIG. 7 are executed. At this time, as shown by the icon 111 on the interface 1101, the user has selected a picture, that is, the current print content is the picture indicated by the icon 111, and the print content information is the URI data of the picture indicated by the icon 111. After the printing module obtains the printing content information, it causes the electronic device to display an interface 1102 as shown in (b) in FIG. 11 , which is used to prompt the user to determine the printing content. If the electronic device determines to print the current print content after detecting that the user clicks the "start printing" control 112, the printing module sends the picture to the printer for printing.

Wherein, the determination operation may include, for example, a preset gesture operation on the display screen such as clicking on a confirmation control (such as a "start printing" control), double-clicking the display screen, etc., or may also include preset operations such as double-clicking the volume key, double-clicking the back shell of the mobile phone, etc., Alternatively, it may also include an operation of automatically confirming after waiting for a preset period of time. The specific type of the determination operation is not specifically limited in this embodiment of the present application.

In some embodiments, it is assumed that the print content is the print content obtained by taking a screenshot of the print service in S706 or S712 as shown in FIG. 7 . If the printing module determines to cancel the printing in response to the user's operation, the electronic device can automatically delete the printing content of the screenshot to save storage space. Alternatively, the electronic device may delete the printed content of the corresponding screenshot in response to the user's operation.

In this way, with the automatic printing method provided by the embodiments of the present application, the electronic device can automatically identify the display content and realize automatic printing, without the need for the user to manually jump through multiple applications repeatedly to find the print content. Thereby, the difficulty of printing is reduced, the printing efficiency is improved, and the user's fast and convenient mobile printing needs are met.

In addition, the electronic device can predefine printing strategies for different display interfaces of different applications through query responses (ie, APPB response messages), or predefine printing strategies for different printing contents supported by the same display interface, so as to meet the flexible printing requirements of users.

In some scenarios, after receiving the print content information, the print module can directly send the print content to the printer for printing without user confirmation, further reducing user operations and ensuring automatic printing without additional user operations. Or, in other scenarios, after receiving the print content information, the printing module automatically sends the print content to the printer for printing after waiting for a preset period of time, so that the electronic device can also ensure that automatic printing can be realized without any additional operation by the user. .

Exemplarily, in the scenario shown in FIG. 11 , after the electronic device detects the printer in the process of displaying the interface 1101 shown in (a) in FIG. The interface 1102 is displayed, and the confirmation operation of the user is received.

It can be understood that in the above embodiment, the division of the printing service, the foreground application, and the printing module shown in FIG. 7 is only an exemplary illustration, and there may be other divisions for implementing the above automatic printing method.

In some scenarios, the current display interface of the foreground application supports multiple print contents, and the electronic device needs to confirm the print contents that the user needs to print. For example, the music playback interface supports printing lyrics pictures and album cover pictures, and the electronic device cannot directly determine the print content, so it needs to receive the user's selection operation to determine the print content to be printed. Exemplarily, FIG. 12 is yet another automatic printing method provided by this embodiment of the present application. As shown in FIG. 12 , after S711 shown in FIG. 7 , S1201 and S1202 may also be included.

S1201. The print service determines whether multiple print contents are supported. If yes, that is, multiple print contents are supported, then go to S1202; if not, that is, only one print content is supported, go to S713.

In some embodiments, the display interface of the foreground application can support one or more print contents. After receiving the query response, the print service parses the query response, and determines the foreground application according to the length of the supported print service list (contentlist) field. Indicates whether the display interface supports multiple print contents. If the length of the supported print service list (contentlist) field is greater than 1, it means that the display interface of the foreground application supports multiple print contents.

Exemplarily, according to the length of the supported printing service list (contentlist) field in the APPB response message shown in the above S709, the printing service determines that the printing content data supported by the foreground application is 1, that is, the printing of lyrics pictures is supported.

For another example, as shown in (a) in FIG. 13A, the interface 1301 is a music playing interface, which has a music playing function and displays a music album cover picture. The electronic device detects that the user clicks on a blank position on the interface 1301, and can switch the displayed content. For example, the interface 1302 shown in (b) of FIG. 13A is displayed. The display content is switched to a picture of the lyrics of the music being played. The interface 1302 is also a music playing interface and has a music playing function. Then the current music playing interface can implement different printing strategies. For example, three printing strategies can be implemented: printing lyrics pictures and/or printing album cover pictures. That is, the music playback function page supports multiple print contents. During the process of displaying the interface 1301 or the interface 1302, the electronic device detects the printer and determines that the current interface supports multiple printing contents, and then executes S1202, and the user determines which printing strategy is specifically implemented.

The APPB response message under the current scene is shown as follows, and the print service determines that the print content data supported by the foreground application is 2 according to the length of the print service list (contentlist) field supported in the APPB response message, that is, supports printing lyrics pictures and album cover pictures. .

It can be seen that the print content corresponding to different printing strategies includes the display content visible to the user on the current interface of the electronic device, and may also include the display content that is invisible to the user on the current interface of the electronic device. For example, the electronic device detects a printer in the process of displaying the interface 1301 shown in (a) in FIG. 13A, and triggers the printing process. The current interface 1301 supports printing the display content visible to the user (such as the album cover picture displayed on the interface 1301) and supports Print the display content that is invisible to the user (the lyrics picture displayed on the interface 1302 as shown in FIG. 13A (b)).

It should be noted that this embodiment of the present application does not limit the execution order of S711 and S1201. For example, after receiving the query response, the printing service can simultaneously determine whether the display interface of the foreground application supports the printing service and the number of supported printing contents according to the query response.

S1202: The print service displays a plurality of supported print contents, and receives the print contents selected by the user.

In some embodiments, if the print service determines that there are multiple print content data supported by the foreground application, a print content selection interface needs to be displayed to receive the print content selected by the user. For example, the print service generates prompt information according to the list of supported print contents in the parsed APPB response message, uses a custom session (Dialog) or activity (Activity) in Android for interface prompts, and receives the print contents selected by the user.

Exemplarily, as shown in interface 1303 in (a) of FIG. 13B , it is assumed that the number of print contents supported by the music playing interface is 2, including lyrics pictures and album cover pictures. After the electronic device discovers the printer by means of touch discovery, etc., a pop-up box displays a prompt box 131 for displaying prompt information generated by the print service. After the electronic device detects that the user clicks on the "Lyric Pictures" control 132, and determines that the print content that needs to be printed currently is the lyrics picture, the print service determines the print content selected by the user, and then can execute S713 to request the corresponding print content from the foreground application. information. Alternatively, after discovering the printer by touch discovery, the electronic device displays an interface 1304 as shown in (b) in FIG. 13B , and prompts the user to select print content by displaying notification information 133 .

In some scenarios, the number of print contents supported by the display interface of the foreground application is multiple, and the print service can obtain the print content information of the multiple print contents from the foreground application, and then send all the print content information of the multiple print contents to the printing module. . The print module directly determines the print content in the process of receiving the user's operation of determining the print. That is, the print service does not execute the above S1201 and S1202, and in the method flow shown in FIG. 7, the specific print content is directly determined in S718.

Exemplarily, as shown in the interface 1401 in FIG. 14( a ), it is assumed that the electronic device has selected the picture 141 and the picture 142 as shown in the interface 1401 when the electronic device discovers the printer by means of touch and discovery. Then, in the above process of automatic identification of the print content, the print content response obtained by the print service in S715 shown in FIG. 7 includes the URI data of the picture 141 and the URI data of the picture 142 . The print service sends the URI data of the picture 141 and the URI data of the picture 142 to the printing module, and the printing module has the permission to access the pictures 141 and 142 (ie, can print the pictures 141 and 142). As shown in the interface 1402 in (b) of FIG. 14 , the printing module receives the printing content selected by the user. As shown in the interface 1402, the current "Page 1" control 143 and the "Page 2" control 144 are both selected, and both the picture 141 and the picture 142 can be printed (that is, both print contents can be printed). When the user clicks the "2nd page" control 144 and deselects the state, it is determined that the user does not print the picture corresponding to the "2nd page" control 144, but only prints the picture corresponding to the "1st page" control 143.

In this way, in a scenario where the display interface of the foreground application supports multiple print contents, the electronic device can flexibly determine the print contents according to the user's selection.

In some scenarios, after receiving and parsing the query information, the foreground application can not only determine the supported printing services, but also directly determine the printing content information corresponding to the supported printing services. The print content information is directly carried in the response. FIG. 15 is a schematic flowchart of another automatic printing method provided by an embodiment of the present application. As shown in FIG. 15, after S711 shown in FIG. 7, the print service may execute S1501.

S1501. The print service determines print content information.

In some embodiments, after receiving the query response, the print service determines whether the query response carries print content information. The print content information determined by the print service may be print content information of all print contents supported by the display interface of the foreground application. The print content information determined by the print service can also determine the print content information of the print content selected for printing by the user, that is, corresponding to the process shown in FIG. 15 , and after S1202 in the process shown in FIG. After the print service determines the print content information, there is no need to request the foreground application for print content information, that is, it is unnecessary to execute S713-S716, and it is unnecessary to exchange APPD messages with the foreground application.

Exemplarily, in the scenario shown in FIG. 11 , in S710 as shown in FIG. 7 , in the query response determined by the foreground application, the carried information includes the interface 1101 as shown in (a) in FIG. 11 supports printing services, printing The number of contents is 1 (that is, the print content is the picture indicated by the icon 111 ), and the URI data of the picture indicated by the icon 111 . Then, after receiving the query response, the print service can directly send the URI data of the picture indicated by the icon 111 to the print module for printing.

In this way, the electronic device can reduce the interactive information transmission steps between the printing service and the foreground application, and improve the printing efficiency.

In some scenarios, the electronic device can receive user edits to whitelisted applications. For example, an application developer registers application A, application B, and application C on the developer website, and registers these three applications as whitelist applications that support automatic identification and printing. After obtaining the whitelist, the electronic device receives the user's editing of the whitelist. If the user does not allow printing of the content corresponding to application B, the whitelist permission of application B can be cancelled in the whitelist. Then, in S605 as shown in FIG. 6 , the electronic device determines that the application B is not a whitelisted application, and if printing is required, only screenshot printing can be performed. For another example, the application developer registers the print content 1, print content 2, print content 3, print content 4, and print content 5 of application A on the developer website, that is, the number of print contents supported by the whitelisted application A is 5. . After the electronic device obtains the whitelist, it receives the user's editing of the whitelist. For example, if the user's common printing requirement is print content 1, the electronic device can cancel the print content 2, print content 3, and print content of application A in the white list in response to the user's selection. Whitelist permissions for print content 4 and print content 5. Then, in the subsequent process shown in FIG. 12 , the printing service can no longer execute S1201 and S1202 , that is, it is not necessary to receive the user's selection, which further reduces the user's operations and improves the printing efficiency.

Exemplarily, as shown in the interface 1601 in FIG. 16 , the electronic device receives the editing of the whitelist application by the user on the interface 1601 . For example, the electronic device detects that the user clicks on the "switch editing" control 161, and can switch the editing whitelist application, such as the application A is currently being edited. The electronic device detects that the user clicks the operation of the "select" control 162 corresponding to the print content option, and can determine whether the user selects or cancels the whitelist permission of the corresponding print content. Whitelist permissions. After detecting that the user clicks the "unselect all" control 163, the electronic device can determine that the user cancels the whitelist permission of application A (ie, cancels the whitelist permission of all printed contents of application A). After that, after detecting that the user clicks the "OK" control 164, the electronic device determines that the user has finished editing the whitelist application.

In this way, the electronic device can edit the whitelisted applications according to the user's personalized needs, so as to further improve the user's use experience.

In some scenarios, the printing service can also perform the operations performed by the printing module in the foregoing method embodiments. For example, after determining the print content, the print service directly sends the print content to a printing device for printing.

The automatic printing method provided by the embodiments of the present application has been described in detail above with reference to FIGS. 6 to 16 . The automatic printing apparatus provided by the embodiment of the present application will be described in detail below with reference to FIG. 17 .

In a possible design, FIG. 17 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 17 , the electronic device 1700 may include: a display unit 1701 , a processing unit 1702 and a transceiver unit 1703 . The electronic device 1700 may be used to implement the functions of the electronic device involved in the foregoing method embodiments.

Optionally, the display unit 1701 is configured to support the electronic device 1700 to display interface content; and/or, support the electronic device 1700 to perform S609 in FIG. 6 .

Optionally, the processing unit 1702 is configured to support the electronic device 1700 to perform S602, S603, S605, S606, S607 and S608 in FIG. 6 .

Optionally, the transceiver unit 1703 is configured to support the electronic device 1700 to perform S601, S604 and S609 in FIG. 6 .

The transceiver unit may include a receiving unit and a sending unit, which may be implemented by a transceiver or a circuit component related to the transceiver, and may be a transceiver or a transceiver module. Operations and/or functions of each unit in the electronic device 1700 In order to implement the corresponding flow of the automatic printing method described in the above method embodiments, all relevant contents of each step involved in the above method embodiments can be cited to the corresponding functional units For the sake of brevity, the function description will not be repeated here.

Optionally, the electronic device 1700 shown in FIG. 17 may further include a storage unit (not shown in FIG. 17 ), in which programs or instructions are stored. When the processing unit 1701 and the transceiver unit 1702 execute the program or instruction, the electronic device 1700 shown in FIG. 17 can execute the automatic printing method described in the above method embodiments.

For the technical effect of the electronic device 1700 shown in FIG. 17 , reference may be made to the technical effect of the automatic printing method described in the above method embodiments, which will not be repeated here.

In addition to being in the form of the electronic device 1700, the technical solutions provided in this application can also be functional units or chips in the electronic device, or a device matched with the electronic device.

An embodiment of the present application further provides a chip system, including: a processor, where the processor is coupled with a memory, the memory is used to store a program or an instruction, and when the program or instruction is executed by the processor, the The chip system implements the method in any of the foregoing method embodiments.

Optionally, the number of processors in the chip system may be one or more. The processor can be implemented by hardware or by software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor implemented by reading software codes stored in memory.

Optionally, there may also be one or more memories in the chip system. The memory may be integrated with the processor, or may be provided separately from the processor, which is not limited in this embodiment of the present application. Exemplarily, the memory may be a non-transitory processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip, or may be provided on different chips. The arrangement of the memory and the processor is not particularly limited.

Exemplarily, the system-on-chip may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), It can also be a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller). controller unit, MCU), it can also be a programmable logic device (PLD) or other integrated chips.

It should be understood that, each step in the above method embodiments may be implemented by a hardware integrated logic circuit in a processor or an instruction in the form of software. The method steps disclosed in conjunction with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program runs on a computer, the computer executes the above-mentioned relevant steps, so as to realize the above-mentioned embodiments. automatic printing method.

Embodiments of the present application further provide a computer program product, which, when the computer program product runs on a computer, causes the computer to execute the above-mentioned relevant steps, so as to realize the automatic printing method in the above-mentioned embodiments.

In addition, an embodiment of the present application further provides an apparatus. Specifically, the apparatus may be a component or a module, and the apparatus may include one or more processors and memories connected thereto. Among them, the memory is used to store computer programs. When the computer program is executed by one or more processors, it causes the apparatus to execute the automatic printing method in the above method embodiments.

The apparatus, computer-readable storage medium, computer program product, or chip provided in the embodiments of the present application are all used to execute the corresponding method provided above. Therefore, for the beneficial effects that can be achieved, reference may be made to the beneficial effects in the corresponding methods provided above, which will not be repeated here.

The steps of the method or algorithm described in conjunction with the disclosure of the embodiments of this application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions. Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (RAM), flash memory, read only memory (ROM), erasable programmable read only memory ( erasable programmable ROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium may reside in an application specific integrated circuit (ASIC).

From the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules as required; that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, apparatus and unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided in this application, it should be understood that the disclosed method may be implemented in other manners. The apparatus embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored, or not. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of modules or units, and may be in electrical, mechanical or other forms.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

Computer-readable storage media include, but are not limited to, any of the following: U disk, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc. Various media that can store program code.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. . Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

An automatic printing method, characterized in that, applied to electronic equipment, the method comprising:

Within a certain distance of the printing device, the electronic device detects the printing device and establishes a communication connection with the printing device;

After the foreground application of the electronic device is a non-desktop application and belongs to a preset whitelist library, the electronic device automatically obtains the print content according to the current interface of the foreground application;

In response to received user input,

All or part of the print content is selected, and the electronic device sends all or part of the selected print content to the printing device; alternatively, the electronic device automatically sends the print to the printing device content;

or,

The electronic device automatically sends the print content to the printing device.
The method according to claim 1, wherein after the foreground application of the electronic device is a desktop application, the method further comprises:

In response to receiving another user input, at least one display element in the current interface of the desktop application that supports printing is selected, and the electronic device sends the selected display element to the printing device; or, all The electronic device automatically sends a screenshot of the current interface of the desktop application to the printing device.
The method according to claim 1, wherein the electronic device automatically obtains the print content according to the current interface of the foreground application; comprising: after the current interface supports a printing service, determining the current interface The corresponding print content is obtained, and the print content is automatically acquired; the print content is at least one display content included in the current interface that supports printing.
The method according to claim 1, wherein the electronic device automatically obtains the print content according to the current interface of the foreground application; comprising: after the current interface does not support a printing service, determining the current interface The screenshot of the interface is the print content, and the print content is automatically acquired.
The method according to claim 3 or 4, wherein the method further comprises:

The electronic device sends a query message to the foreground application through a print service run by the electronic device;

The print service receives a query response sent by the foreground application;

According to the query response, the electronic device acquires the print content.
The method according to claim 5, wherein after the query response includes an identifier of the displayed content in the current interface, the current interface supports a printing service, and the identifier is used to indicate the current interface Include at least one display that supports printing;

After the query response does not contain the identifier of the displayed content in the current interface, the current interface does not support the printing service.
The method according to claim 6, wherein after the electronic device automatically acquires the print content, the method further comprises: the electronic device prompts the print content.
The method according to claim 7, wherein the electronic device prompts the print content; comprising:

The electronic device displays a print content confirmation interface.
9. The method of claim 8, wherein in response to the received user input, all or part of the print is selected and the electronic device sends the selected print to the print device in whole or in part; including:

the electronic device receives a first user input;

in response to the first user input received by the electronic device, all or part of the print is selected;

the electronic device receives a second user input;

In response to the second user input received by the electronic device, the electronic device transmits all or part of the selected print content to the printing device;

Wherein, the user input includes the first user input and the second user input.
The method of claim 8, wherein, in response to the received user input, the electronic device automatically sends the print content to the printing device; comprising:

the electronic device receives a second user input;

in response to the second user input received by the electronic device, the electronic device automatically sends the print content to the printing device;

Wherein, the user input includes the second user input.
The method according to any one of claims 1-4 and 6-10, wherein the method further comprises: the electronic device runs a printing service and a printing module;

The electronic device sends all or part of the selected print content to the printing device; including: the electronic device sends the print content to the printing device through the printing service and the printing module. in whole or in part.
An electronic device, characterized in that the electronic device comprises:

processor;

memory;

and a computer program, wherein the computer program is stored on the memory and, when executed by the processor, causes the electronic device to execute:

Within a certain distance of the printing device, the electronic device detects the printing device and establishes a communication connection with the printing device;

After the foreground application of the electronic device is a non-desktop application and belongs to a preset whitelist library, the electronic device automatically obtains the print content according to the current interface of the foreground application;

In response to received user input,

All or part of the print content is selected, and the electronic device sends all or part of the selected print content to the printing device; alternatively, the electronic device automatically sends the print to the printing device content;

or,

The electronic device automatically sends the print content to the printing device.
The electronic device according to claim 12, wherein the electronic device further executes:

After the foreground application of the electronic device is a desktop application, in response to another user input received, at least one display element that supports printing in the current interface of the desktop application is selected, and the electronic device sends the printing The device sends the selected display element; or, the electronic device automatically sends a screenshot of the current interface of the desktop application to the printing device.
The electronic device according to claim 12, wherein, according to the current interface of the foreground application, the electronic device automatically obtains the print content; comprising: after the current interface supports a printing service, determining the current interface print content corresponding to the interface, and automatically acquire the print content; the print content is at least one display content that supports printing included in the current interface.
The electronic device according to claim 12, wherein, according to the current interface of the foreground application, the electronic device automatically obtains the print content; comprising: after the current interface does not support a printing service, determining the The screenshot of the current interface is the print content, and the print content is automatically acquired.
The electronic device according to claim 14 or 15, wherein the electronic device further executes:

The electronic device sends a query message to the foreground application through a print service run by the electronic device;

The print service receives a query response sent by the foreground application;

According to the query response, the electronic device acquires the print content.
The electronic device according to claim 16, wherein after the query response includes an identifier of the displayed content in the current interface, the current interface supports a printing service, and the identifier is used to indicate the current interface The interface includes at least one display content that supports printing;

After the query response does not contain the identifier of the displayed content in the current interface, the current interface does not support the printing service.
The electronic device according to claim 17, wherein after the electronic device automatically acquires the print content, the electronic device further executes: the electronic device prompts the print content.
The electronic device according to claim 18, wherein the electronic device prompts the print content; comprising: the electronic device displays a print content confirmation interface.
20. The electronic device of claim 19, wherein, in response to a received user input, all or part of the print is selected, and the electronic device sends the selected print to the printing device All or part of the content; including:

the electronic device receives a first user input;

in response to the first user input received by the electronic device, all or part of the print is selected;

the electronic device receives a second user input;

In response to the second user input received by the electronic device, the electronic device transmits all or part of the selected print content to the printing device;

Wherein, the user input includes the first user input and the second user input.
The electronic device of claim 19, wherein, in response to the received user input, the electronic device automatically sends the print content to the printing device; comprising:

the electronic device receives a second user input;

in response to the second user input received by the electronic device, the electronic device automatically sends the print content to the printing device;

Wherein, the user input includes the second user input.
The electronic device according to any one of claims 12-15 and 17-21, wherein the electronic device further executes: the electronic device runs a printing service and a printing module;

The electronic device sends all or part of the selected print content to the printing device; including: the electronic device sends the print content to the printing device through the printing service and the printing module. in whole or in part.
A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program, which, when the computer program is run on an electronic device, causes the electronic device to execute any one of claims 1-11 method described in item.
A computer program product, characterized in that, when the computer program product is run on a computer, the computer is caused to execute the method according to any one of claims 1-11.