WO2013060245A1 - 用于移动终端的应用屏幕截图方法和装置 - Google Patents
用于移动终端的应用屏幕截图方法和装置 Download PDFInfo
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- WO2013060245A1 WO2013060245A1 PCT/CN2012/083012 CN2012083012W WO2013060245A1 WO 2013060245 A1 WO2013060245 A1 WO 2013060245A1 CN 2012083012 W CN2012083012 W CN 2012083012W WO 2013060245 A1 WO2013060245 A1 WO 2013060245A1
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- Prior art keywords
- screenshot
- specified
- application screen
- application
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
Definitions
- the present invention relates to the field of mobile terminals, and in particular, to an application screenshot method and apparatus for a mobile terminal. Background technique
- Android is equipped with Android system.
- Android is a software platform for developing mobile programs. It includes operating system, middleware and some key applications.
- Mobile End User Switching Activity (Activity) is a standard component of the Android platform. In fact, an Activity is a single screen in the application, it inherits from the Activity class, it will display the UI composed of Views and response events.
- the application scenario such as the task manager and the home desktop application is managed under the Android platform
- only the background running is obtained.
- the application screen cannot read all the screens of the historical application. It is not easy for the user to find the application that he wants to switch. Therefore, when the application is switched, the UI (User Interface) has less room for display, the display is not intuitive, and the user experience is poor.
- Embodiments of the present invention provide an application screenshot method and apparatus for a mobile terminal.
- the technical solution is as follows:
- An application screenshot method for a mobile terminal comprising:
- An application screenshot device for a mobile terminal comprising: a receiving module, configured to receive an instruction for closing a specified application screen;
- a screenshot module configured to intercept a specified area of the specified application screen, to obtain a screenshot of the specified area
- a saving module configured to save the specified area screenshot, and close the specified application screen.
- the beneficial effects of the technical solution provided by the embodiment of the present invention are: by taking a screenshot of the application screen before the Activity screen is closed before closing the application screen activity, obtaining the last real screen of the Activity, avoiding after the application screen is closed.
- the high memory footprint caused by the screenshots improves the screen capture efficiency and reduces the memory usage and number of calls.
- FIG. 1 is a flow chart of an application screenshot method for a mobile terminal according to an embodiment of the present invention
- FIG. 2 is a flow chart of an application screenshot method for a mobile terminal according to an embodiment of the present invention
- FIG. 3 is a flowchart of an example of an application screenshot method for a mobile terminal in a JAVA environment according to an embodiment of the present invention
- FIG. 4 is a schematic structural diagram of an application screen capture apparatus for a mobile terminal according to an embodiment of the present invention. detailed description
- Activity is a standard component of the Android platform.
- an Activity is a single screen in the application, it inherits from the Activity class, it will display the UI composed of Views And responding to events.
- History Activity is a historical Activity, which refers to the Activity that the user has opened, including the activity that is running in the background.
- Surface View is a special View view class for the Android platform. It is the parent class of the two 3D view classes, GLSurface View and RSSurfaceView. Both of these 3D view classes run on their own separate drawing threads. Therefore, it is different from other common View view classes.
- Live Wappaper refers to the dynamic wallpaper of the Android platform, usually implemented by the RSSurfaceView view class.
- ActivityManager Service refers to the Activity Management Service, which is a key system service in the Android platform.
- WindowManagerService refers to the Window Management Service, which is a key system service in the Android platform.
- TaskManager refers to the task manager, which is an Android application with functions such as task display, switching and killing.
- FIG. 1 is a flow chart of an application screenshot method for a mobile terminal according to an embodiment of the present invention.
- the executor of the embodiment is a mobile terminal. Referring to FIG. 1 , the embodiment specifically includes:
- At least one application is running on the mobile terminal, and the application is currently in a full screen state.
- the instruction to close the specified application screen is a switching instruction that switches the specified application to run in the background, or switches another application to a switching instruction that runs in the foreground, or turns off the closing instruction of the specified application.
- the instruction when the instruction is to switch the specified application to the background running switching instruction, the instruction may be manually triggered by the mobile terminal user, for example, minimizing the specified application, etc., the instruction may also be triggered according to a preset condition, for example, specifying a program If it is idle within 20 minutes, a switch instruction for switching the specified application to background operation is triggered.
- the life cycle of an application Acitvity includes: When an Activity is started, after the execution of the Activity() constructor is completed, the system calls the onCreate() method, where the global state and resources of the Activity are set, and then onStart is called. () method, after this method is executed, the Activity is visible on the screen. Execute the onResume() method, this time Acitvity waits for a window event in a loop loop. When the window is partially visible, that is, Acitvity is not At the very front end, the Activity's onFreeze() method is called, which saves some internal state of the Activity. The window then pauses until the Activity appears at the front end, and the activity's onResume() method is called.
- the Activity window is not visible, then the Activity's onStop() method is called, until the activity's window is closed, the activity's onRestart() method starts, and then the onStart() method is repeated.
- the system recycles the resource or the Activity is called the finish() method, the Activity stops and calls onDestroy() to release the resources owned by the Activity.
- the designated area may be the entire application screen, or may be an area preset by the mobile terminal, which is not specifically limited in the embodiment of the present invention.
- step 102 of the embodiment is performed after receiving the instruction to close the specified application screen and before closing the designated application screen, as compared with the description of the life cycle of the Acitvity in the prior art in step 101.
- the screen capture in the prior art occurs after the onStop() method is called, and the screen capture of the present invention is after the onStop() method is called after the onPause() method is called.
- the specified application screen is closed, and the specified application is closed or the designated application is switched to the background operation according to the received instruction.
- step 103 the method further includes:
- the specified area screenshot is obtained, and the specified area screenshot is displayed.
- the method provided in this embodiment can take a screenshot of the application screen and obtain the last real screen of the Activity by closing the application screen before closing the application screen activity, thereby avoiding the high memory usage caused by the screenshot after the application screen is closed. Improve screen capture efficiency, reduce memory usage and number of calls.
- FIG. 2 is a flow chart of an application screenshot method for a mobile terminal according to an embodiment of the present invention.
- the executor of the embodiment is a mobile terminal, and a specified application is currently running on the mobile terminal.
- the embodiment specifically includes:
- the mobile terminal receives an instruction to close a specified application screen.
- This step 201 is the same as the principle of step 101, and details are not described herein again.
- the mobile terminal displays the specified application screen according to a local display size and a preset zoom ratio.
- the specified area of the screen is zoomed, and the scaled thumbnail is captured to obtain a screenshot of the designated area.
- the local display size refers to the display size of the mobile terminal, generally, the size and locality of the application screen.
- the size of the display screen is the same, that is, the original size of the screenshot is the size of the local display screen; the designated area of the designated application screen can be set by the mobile terminal user according to the browsing habit, and the designated area can be the full screen area of the specified application screen, or A certain area of the application screen is specified; the preset zoom ratio is set by the mobile terminal user according to the browsing habits and the like, and is not specifically limited in the embodiment of the present invention.
- the step 202 specifically includes: the mobile terminal acquires a local display size and a preset zoom ratio, and uses a local display size to specify an initial size of the application screen, and scales a specified area of the specified application screen according to a preset zoom ratio. , get the zoomed thumbnail, and capture the scaled thumbnail to get a screenshot of the specified area.
- drawFBO is a drawing method
- the drawing method acquires the current image of the display by calling a preset display device, and reads the preset display device.
- the buffer pixel uses the buffer pixel to generate a Bitmap image. Since drawFBO draws through a preset display device, its range also includes the status bar of the display, which expands the range of the screenshot.
- drawFB() can be specifically represented as follows:
- SkBitmap* bitmap new SkBitmap(); ⁇ construct a bitmap
- the specified area of the specified application screen is intercepted, and a screenshot of the specified area is obtained.
- the specified application screen is closed, and the step of closing the specified application screen ensures the integrity and validity of the screenshot after the screenshot, avoiding the screenshot after the shutdown and causing the screenshot to be black, so that the view by the GLSurfaceView class
- the activity or background of the elements, RSSurfaceView class view elements is the Live Wallpaper class's Activity can accurately capture the screen.
- the instruction to view the specified application may be an instruction to view a history application or an instruction to view an application running in the background.
- the command may be triggered by the task manager of the mobile terminal, for example, when the task manager of the mobile terminal is started, displaying a screenshot of the specified area of the application running in the background, so that the mobile terminal user can intuitively view the application running in the background, and It is known that the application running in the background is applied to a certain historical application or the background running application, which is not specifically limited in the embodiment of the present invention.
- the mobile terminal can perform operations such as browsing, switching, and releasing the specified application according to the received operation instruction.
- the browsing refers to viewing the last running state of the specified application.
- the switching refers to switching the specified application from the foreground running to the background running, or switching the specified application from the background running to the foreground running, and releasing refers to deleting the specified area of the specified program. Screenshot.
- the above embodiments can be used in embedded products of the android platform, such as tablet computers, set top boxes and fixed stations.
- FIG. 3 is a flow chart of an example of the application screen capture method for the mobile terminal in the JAVA environment according to an embodiment of the present invention.
- the onCreate(), onStart(), onRestart(), onResume(), drawFB(), onPause(), onStop(), onDestory() are abstract functions in the present invention, and are not specifically implemented.
- the specific application is overloaded.
- For the life cycle of an Activity there are the following processes: When the Activity starts, it calls onCreate(), onStart(), and onResumeQ to make the Activity run normally, and when the Activity screen switches, call drawFB().
- the method provided in this embodiment can take a screenshot of the application screen and obtain the last real screen of the Activity by closing the application screen before closing the application screen activity, thereby avoiding the high memory usage caused by the screenshot after the application screen is closed. Improve screen capture efficiency, reduce memory usage and number of calls.
- FIG. 4 is a schematic structural diagram of an application screenshot device for a mobile terminal according to an embodiment of the present invention. Referring to FIG. 4, the embodiment specifically includes:
- a receiving module 401 configured to receive an instruction for closing a specified application screen
- a screenshot module 402 configured to intercept a specified area of the specified application screen, to obtain a specified area cut-off;
- the saving module 403 is configured to save the specified area screenshot and close the specified application screen.
- the screenshot module 402 includes:
- a zooming unit configured to scale a specified area of the specified application screen according to a local display size and a preset zoom ratio
- the screenshot unit is configured to intercept the scaled thumbnail and obtain a screenshot of the specified area.
- the device also includes:
- a display module configured to: when receiving an instruction to view the specified application, obtain the screenshot of the specified area, and display the specified area screenshot.
- the instruction for closing the specified application screen is a switching instruction to switch the specified application to the background operation, or to switch another application to a switching instruction running in the foreground, or to close the closing instruction of the specified application.
- the device provided in this embodiment may be a mobile terminal, and the method is the same as the method embodiment.
- the method is the same as the method embodiment.
- details refer to the method embodiment, and details are not described herein.
- All or part of the above technical solutions provided by the embodiments of the present invention may be completed by hardware related to program instructions, and the program may be stored in a readable storage medium, and the storage medium includes: ROM, RAM, disk or CD. And other media that can store program code.
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Priority Applications (6)
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IN3386CHN2014 IN2014CN03386A (zh) | 2011-10-26 | 2012-10-16 | |
KR1020147012685A KR101693563B1 (ko) | 2011-10-26 | 2012-10-16 | 이동 단말에서 애플리케이션 스크린의 스크린샷을 취하는 방법 및 장치 |
JP2014537475A JP5887419B2 (ja) | 2011-10-26 | 2012-10-16 | 携帯端末内のアプリケーションの画面のスクリーンショットをとるための方法及び装置 |
EP12842933.9A EP2763034B1 (en) | 2011-10-26 | 2012-10-16 | Method and device for image-capturing application screen for use in mobile terminal |
US14/262,171 US10078434B2 (en) | 2011-10-26 | 2014-04-25 | Method and apparatus for taking screenshot of screen of application in mobile terminal |
US16/100,495 US11016641B2 (en) | 2011-10-26 | 2018-08-10 | Method and apparatus for taking screenshot of screen of application in mobile terminal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201110329295.3A CN102521020B (zh) | 2011-10-26 | 2011-10-26 | 用于移动终端的应用屏幕截图方法和装置 |
CN201110329295.3 | 2011-10-26 |
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US14/262,171 Continuation US10078434B2 (en) | 2011-10-26 | 2014-04-25 | Method and apparatus for taking screenshot of screen of application in mobile terminal |
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WO2013060245A1 true WO2013060245A1 (zh) | 2013-05-02 |
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US (2) | US10078434B2 (zh) |
EP (1) | EP2763034B1 (zh) |
JP (1) | JP5887419B2 (zh) |
KR (1) | KR101693563B1 (zh) |
CN (1) | CN102521020B (zh) |
IN (1) | IN2014CN03386A (zh) |
WO (1) | WO2013060245A1 (zh) |
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CN102521020A (zh) | 2012-06-27 |
EP2763034A4 (en) | 2014-10-22 |
US11016641B2 (en) | 2021-05-25 |
KR101693563B1 (ko) | 2017-01-06 |
IN2014CN03386A (zh) | 2015-07-03 |
KR20140075786A (ko) | 2014-06-19 |
JP5887419B2 (ja) | 2016-03-16 |
EP2763034B1 (en) | 2021-07-28 |
EP2763034A1 (en) | 2014-08-06 |
US20180348999A1 (en) | 2018-12-06 |
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