Method and apparatus for taking screenshot of screen of application in mobile terminal
The present invention relates to the field of mobile terminals and discloses a method and an apparatus for taking a screenshot of a screen of an application. An instruction is received for closing a screen of a designated application. A designated area of the screen of the designated application is captured to obtain a screenshot of the designated area. The screenshot of the designated area is saved and the screen of the designated application is closed.
1. A method for taking a screenshot of an application, implemented by a mobile terminal, the method comprising:
displaying an application on a display of the mobile terminal;
receiving an instruction for switching an application state of the application to running in background with a screen of the application closed;
zooming a designated area of the screen of the designated application according to a size of the display and a preset zoom ratio;
capturing a thumbnail after the zooming;
obtaining a screenshot of the designated area thumbnail, including a status bar of the display, by invoking a drawFB( ) method in response to the receiving the instruction for switching the designated application state, after an onPause method is invoked, and before an onStop method is invoked, wherein the drawFB( ) method is a drawing method that obtains a current image of a display invoking a preset display device, reading a buffer pixel of the preset display device is read, and generating a bitmap image using the buffer pixel, and wherein the drawFB( ) method has a range that includes the status bar of the display;
storing the screenshot of the designated application and switching the designated application state to running in background;
receiving an instruction for viewing an application running in background; and
displaying the screenshot of the application in response to the receiving the instruction for viewing the application running in background.
2. The method according to claim 1 , the method further comprising displaying the screen of the application when the onPause method is invoked.
3. The method according to claim 1 , wherein the designated area of the screen of the application is an entire screen of the application.
4. The method according to claim 1 , the method further comprising:
receiving an operational instruction; and
switching the designated application state from running in background to running in foreground according to the operational instruction.
5. A mobile terminal, comprising:
a display;
one or more processors; and
a non-transitory computer-readable storage medium storing a first software application and a program to be executed by the processor, the program including instructions for:
displaying the first software application on the display of the mobile terminal;
receiving an instruction for switching an application state of the first software application to running in background with a screen of the designated application closed;
zooming a designated area of the screen of the designated application according to a size of the display and a preset zoom ratio;
capturing a thumbnail after the zooming;
obtaining a screenshot of the designated area thumbnail, including a status bar of the display, by invoking a drawFB( ) method in response to the receiving the instruction for switching the application state, after an onPause method is invoked, and before an onStop method is invoked, wherein the drawFB( ) method is a drawing method that obtains a current image of a display invoking a preset display device, reading a buffer pixel of the preset display device is read, and generating a bitmap image using the buffer pixel, and wherein the drawFB( ) method has a range that includes the status bar of the display;
storing the screenshot of the first software application and switching the designated application state to running in background;
receiving an instruction for viewing an application running in background; and
displaying the screenshot of the first software application in response to the receiving the instruction for viewing the designated application running in background.
6. The mobile terminal according to claim 5 , the program further including instructions for displaying the screen of the application when the onPause method is invoked.
7. The mobile terminal according to claim 5 , wherein the designated area of a screen of the application is an entire screen of the application.
8. The mobile terminal according to claim 5 , the program further including instructions for:
receiving an operational instruction; and
switching the designated application from running in background to running in foreground according to the operational instruction.
9. A non-transitory computer readable storage medium storing one or more programs, the one or more programs including instructions, which, when executed by a mobile terminal with a display, and one or more processors, cause the mobile terminal to:
display an application on the display of the mobile terminal;
receive an instruction for switching an application state of the application to running in background with a screen of the application closed;
zooming a designated area of the screen of the designated application according to a size of the display and a preset zoom ratio;
capturing a thumbnail after the zooming;
obtain a screenshot of the designated area thumbnail, including a status bar of the display, by invoking a drawFB( ) method in response to receiving the instruction for switching the application state, after an onPause method is invoked, and before an onStop method is invoked, wherein the drawFB( ) method is a drawing method that obtains a current image of a display invoking a preset display device, reading a buffer pixel of the preset display device is read, and generating a bitmap image using the buffer pixel, and wherein the drawFB( ) method has a range that includes the status bar of the display;
store the screenshot of the designated application and switch the designated application state to running in background;
receive an instruction for viewing an application running in background; and
display the screenshot of the application in response to receiving the instruction for viewing the application running in background.
10. The computer readable storage medium according to claim 9 , wherein the instructions further cause the mobile terminal to display the screen of the application when the onPause method is invoked.
11. The computer readable storage medium according to claim 9 , wherein the designated area of a screen of the application is an entire screen of the application.
12. The computer readable storage medium according to claim 9 , wherein the instructions further cause the mobile terminal to:
receive an operational instruction; and
switch the designated application state from running in background to running in foreground according to the operational instruction.