CN112463273A - Display method and device for android application in PC (personal computer) display - Google Patents
Display method and device for android application in PC (personal computer) display Download PDFInfo
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- CN112463273A CN112463273A CN202011283645.2A CN202011283645A CN112463273A CN 112463273 A CN112463273 A CN 112463273A CN 202011283645 A CN202011283645 A CN 202011283645A CN 112463273 A CN112463273 A CN 112463273A
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- 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
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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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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Abstract
The invention discloses a display method and a display device of an Android application in a PC (personal computer) display, which are characterized in that a coordinate range of a part which is not required to be displayed in an Android application interface is calculated through a container window running in a desktop operating system, the coordinate range is sent to an Android system, the Android system selectively refreshes part of the Android application interface according to the coordinate range, and the whole Android application interface is not needed to be refreshed, so that the performance cost of refreshing the Android application in an Android compatible environment is effectively reduced.
Description
Technical Field
The invention belongs to the technical field of development of running mobile applications on a desktop operating system, and particularly relates to a display method and device of an android application in a PC (personal computer) display.
Background
An Android compatible environment (hereinafter abbreviated as an Android compatible environment) of a desktop operating system such as Linux or Windows is a technology for running an Android application (App) on the Linux or Windows operating system, and has important significance for enriching the application ecology of the operating system. For example, an Android compatible environment running on a Linux system generally comprises a Host end and a Guest end, the Host end runs on the Linux system and mainly comprises an Android container and a user interaction window, the Android container is used for isolating part of kernel resources from the Linux system to support the Guest end to run, the Guest end mainly comprises a specially customized Android application frame, an Android run-time library and the like, and Android applications run on the Guest end. When a user uses an Android application in a Linux operating system, the Android application window is realized in the following mode: and the window of the Linux system sends the handle to an Android system running in an Android container, and an Android application user interface is obtained by rendering the Android system, wherein the xDreidUI is one implementation of the Android application user interface.
When a user uses Android applications in an Android compatible environment, the appearance of the display screen of the adopted PC display is generally a horizontal rectangle, namely a horizontal screen, however, most of the Android applications generally adopt a vertical screen for displaying in order to match the size of the display screen of the mobile phone, therefore, when the user needs to display the interface of the Android applications on the PC display, namely, when the vertical rectangle is displayed in the horizontal screen display, the situation that the PC display screen cannot be fully utilized (namely, a large amount of blanks are left on two sides of the PC display screen) generally occurs, and the width of the vertical screen application is narrow, so that characters, pictures and the like displayed are relatively small, and inconvenience is brought to the user operation. In the prior art, the technical scheme disclosed in the invention with application number 202011283641.4, namely 'a display method and device for Android application in a horizontal screen display', realizes the display of the Android application in the horizontal screen display, but the method cannot solve the problem that the Android compatible environment frequently sends interface data of the Android application to a desktop operating system due to the refreshing requirement of the Android application, so that the Android compatible environment generates large performance overhead, and the running performance of the Android compatible environment is reduced.
Disclosure of Invention
In view of the above, the invention provides a display method and device for an Android application in a PC display, which effectively reduce performance overhead brought by an Android application display process to an Android compatible environment on the basis of displaying the Android application in a horizontal screen PC display.
The invention provides a display method of an android application in a PC (personal computer) display, which specifically comprises the following steps:
the method comprises the steps that an Android system running in an Android compatible environment sends interface data of started Android applications to an Android application display buffer area running on a desktop operating system, and an Android application container window running on the desktop operating system reads data needing to be displayed from the Android application display buffer area and displays the Android applications in a rolling mode on a horizontal screen display; the Android application container window calculates an undisplayed coordinate range of the interface data of the Android application which is not displayed, and sends the undisplayed coordinate range to the Android system, and the Android system controls the Android application to be refreshed according to the undisplayed coordinate range;
the height of the output interface of the Android application container window is not larger than the height of the horizontal screen display, and the width of the output interface of the Android application container window is not smaller than the width of the interface of the Android application.
Further, the Android application container window reads data to be displayed from the Android application display buffer area, and the method comprises the following steps: when the current interface of the Android application is displayed in the Android application container window for the first time, the Android application container window reads data to be displayed from the initial position of the Android application display buffer area according to the size of an output interface.
Further, the Android application container window reads data to be displayed from the Android application display buffer area, and the method comprises the following steps: when a user drags a scroll bar in the Android application container window, the Android application container window calculates to obtain the distance between the top end of the Android application container window and the top end of an interface of an Android application stored in an Android application display buffer area, the distance is recorded as an offset, the range of data to be displayed is calculated according to the offset, and then the data to be displayed is read from the Android application display buffer area according to the obtained range.
Further, the Android application container window acquires a user click event to obtain a click coordinate of a click position of the user click event; the Android application container window converts the click coordinates into application interface coordinates of a current interface of the Android application, and the Android application container window sends the application interface coordinates to the Android system.
Further, the mode that the Android application container window sends the application interface coordinates to the Android system is as follows: and the Android application container window sends an RPC message to the Android system.
The invention provides a display device of an android application in a horizontal screen display, which comprises: the system comprises an Android compatible environment unit, an Android application display buffer area unit and an Android application container window unit;
the Android compatible environment unit is used for providing an operating environment of the Android system in a desktop operating system;
the Android application display buffer unit runs in a desktop operating system and is used for receiving the interface data of the Android application sent by the Android system and storing the interface data in the desktop operating system;
the Android application container window unit runs in a desktop operating system and is used for reading data to be displayed from the Android application display buffer area unit and displaying the data to be displayed in the desktop operating system, so that the Android application is displayed in a rolling manner in the horizontal screen display; the Android application container window unit calculates to obtain a coordinate range of the interface data of the Android application which is not displayed, and sends the coordinate range to the Android system; the height of the interface generated by the Android application container window unit is not more than that of the horizontal screen display, and the width of the interface is not less than that of the Android application;
when the current interface of the Android application is displayed in the Android application container window unit for the first time, the Android application container window unit reads data to be displayed from the initial position of the Android application display buffer area according to the size of an output interface.
Further, when the Android application container window unit displays the current interface of the Android application for the first time, the Android application container window reads data to be displayed from the starting position of the Android application display buffer area according to the size of an output interface.
Further, when the Android application container window unit drags a scroll bar in the Android application container window, the Android application container window unit calculates to obtain a distance between the top end of an output interface of the Android application container window and the top end of an interface of an Android application stored in an Android application display buffer area, the distance is recorded as an offset, a range of data to be displayed is calculated according to the offset, and then data to be displayed is read from the Android application display buffer area according to the obtained range.
Further, when the Android application container window unit obtains a user click event, the Android application container window unit converts the obtained click coordinate of the click position of the user click event into an application interface coordinate of the current interface of the Android application, and the Android application container window unit sends the application interface coordinate to the Android system.
Has the advantages that:
according to the method and the device, the coordinate range of the part, which does not need to be displayed, in the Android application interface is calculated through the container window running in the desktop operating system, and the coordinate range is sent to the Android system, the Android system selectively refreshes part of interfaces of the Android application according to the coordinate range without refreshing the whole Android application interface, and therefore performance overhead of refreshing the Android application in an Android compatible environment is effectively reduced.
Drawings
Fig. 1 is a flowchart of a display method of an android application in a PC display provided in the present invention.
Fig. 2 is a structural diagram of a display device for an android application in a PC display provided in the present invention.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides a display method and a display device of an android application in a PC display, which are further improved on the basis of the scheme disclosed by the invention 'a display method and a display device of an android application in a horizontal screen display' with the application number of 202011283641.4. The basic idea of the display method of the android application in the PC display provided by the invention is as follows: and calculating a coordinate range of a part which is not required to be displayed in the Android application interface by the container window running in the desktop operating system, and selectively refreshing part of interfaces of the Android application by the Android system according to the coordinate range, thereby reducing the data transmission quantity between the Android compatible environment and the desktop operating system.
For convenience of expression, the width of a vertical-screen Android application display interface is assumed to be w, the height of the vertical-screen Android application display interface is assumed to be h, and the height of a display interface of a PC display is assumed to be h1Width of w1And satisfies the condition w < w1And h > h1. The Android application interface is displayed in the horizontal screen display by adopting the scheme disclosed by the invention with the application number of 202011283641.4, namely the display method and the device for the Android application in the horizontal screen display.
The process of the display method of the android application in the PC display provided by the invention is shown in figure 1, and comprises the following steps:
step 1, when a user starts an Android application in an Android compatible environment, an API of a desktop operating system (Linux or Windows) is used to create an Android application display buffer (i.e., a display buffer), for example, the Android application display buffer has a display interface with a width w and a height h for accommodating the Android application.
And 2, the Android system sends the content required to be displayed by the Android application to an Android application display buffer area.
And 3, reading data from the Android application display buffer area by adopting an Android application container window with a scroll bar created by a desktop operating system (Linux or Windows) API, displaying the read data in the Android application container window, simultaneously calculating a coordinate range which is not displayed in the Android application container window in the Android application interface, and sending the coordinate range to the Android system. In the subsequent refreshing of the Android application interface, the Android system can locally refresh the Android application interface according to the coordinate range. The size of the Android application container window is set according to the size of the PC display.
The method of the Java type 'LaunchingTaskPositioner' in the Android system can realize the control of the refreshing range.
When the Android application container window displays the Android application interface, the coordinate range which is not displayed in the Android application container window in the Android application interface is calculated, and specifically, the following conditions mainly exist:
displaying for the first time, namely displaying the Android application in the desktop operating system for the first time, wherein the Android application container window is wide w and high h according to display contents1The method comprises the steps that a picture with the size starts to read corresponding data to be displayed from the initial position of an Android application display buffer area, and the read data to be displayed are displayed in an Android application container window; meanwhile, the Android application container window calculates the coordinate range in the unread Android application display buffer area, and sends the coordinate range to the Android application.
For example, the Android application container window reads the coordinate range from (0,0) to (w, h) from the Android application display buffer1) The data content of (a); the coordinate range of the unread data is calculated to be from (0, h-h)1) To (w, h).
Scrolling, namely when a user drags a scroll bar in an Android application container window, the Android application container window calculates the distance between the top end of an output window and the top end of a page stored in a buffer area, the distance is recorded as an offset, the range of data to be displayed is recalculated according to the offset, and therefore data are read from the Android application display buffer area and the read data to be displayed are displayed in the Android application container window; meanwhile, the Android application container window calculates the coordinate range in the unread Android application display buffer area, and sends the coordinate range to the Android application. For example, the Android application container window reads the coordinate range from (0, offset) to (w, h) from the Android application display buffer1+ offset) data content; the coordinate range of the calculated unread data includes 2, i.e., from (0,0) to (w, offset) and from (0, h)1+ offset) to (w, h).
A user clicks a screen, that is, when the user uses a touch or a mouse to click an Android application interface displayed in a desktop operating system, an Android application container window obtains a click coordinate of a current touch or mouse click position, for example: the click coordinate is (x, y), the click coordinate can be an absolute coordinate of a display or an absolute coordinate of an interface displayed by an Android application container window, and then the coordinate of the whole Android application interface corresponding to the click coordinate is obtained through corresponding conversion according to the click coordinate, so that the corresponding coordinate in the Android application display buffer area is obtained, and the coordinate in the Android application display buffer area is named as a response coordinate; meanwhile, the Android application container window calculates the coordinate range in the unread Android application display buffer area, namely the coordinate range is not displayed; and then, simultaneously sending the response coordinate range and the non-display coordinate range to the Android application.
For example, when the click coordinate is an absolute coordinate of an interface displayed by the Android application container window, the converted response coordinate is (x, y + offset); at this time, the coordinate range of the calculated unread data includes 2, i.e., from (0,0) to (w, offset) and from (0, h)1+ offset) to (w, h).
The Android application container window can send the response coordinate to the Android system in a mode of sending an RPC message, and the Android system generates a new page according to the response coordinate to respond to the operation of the user.
Based on the display method of the android application in the PC display provided by the invention, the invention provides a display device of the android application in the PC display, the structure of which is shown in FIG. 2, and the display device specifically comprises: the Android application display system comprises an Android compatible environment unit, an Android application display buffer area unit and an Android application container window unit.
The Android compatible environment unit is used for providing an operation environment of the Android system in the desktop operating system, and the Android system operates in the Android compatible environment.
The Android application display buffer unit runs in the desktop operating system and is used for storing the data of the Android application interface in the desktop operating system, and the Android system sends the data of the Android application interface to the Android application display buffer unit for storage.
The Android application container window unit runs in the desktop operating system and is used for realizing the rolling display of an Android application interface in the desktop operating system, the Android application container window unit determines the window size of a container window in the desktop operating system according to the size of a display screen of a PC display and the size of the Android application interface, corresponding data are read from the Android application display buffer area unit according to the determined window size for display, and when the Android application is displayed in the Android application container window unit for the first time, the Android application container window unit reads the data from the initial position of the Android application display buffer area unit; calculating a coordinate range of data which is not displayed in the Android application container window unit in the Android application display buffer unit, and sending the coordinate range to the Android system; and a scroll bar in the Android application container window unit is used for controlling the display range of the Android application window.
The Android application container window unit needs to respond to two types of events, namely a scroll bar event, namely when a user drags a scroll bar in the Android application container window unit, the Android application container window unit calculates the distance between the top end of an output window of the Android application container window unit and the top end of a page stored in a buffer area, the distance is recorded as an offset, the range of data to be displayed is recalculated according to the offset, data are read from an Android application display buffer area and displayed according to the calculated range, then the coordinate range of undisplayed data is calculated, and the coordinate range of the undisplayed data is sent to an Android system; and secondly, a screen click event is a screen click event, namely when a user clicks an Android application interface displayed in a desktop operating system by using a touch or a mouse, an Android application container window unit obtains a click coordinate of a current touch or mouse click position, the click coordinate can be an absolute coordinate of a display or an absolute coordinate of an interface displayed by the Android application container window unit, and the coordinate of the whole Android application interface corresponding to the click coordinate is obtained through conversion, so that a corresponding coordinate in an Android application display buffer area, namely a response coordinate, is obtained, a coordinate range of undisplayed data is calculated, the Android application container window unit sends the response coordinate and the undisplayed data coordinate range to the Android system, and the Android system generates a new page according to the response coordinate to respond to the operation of the user.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the scope of the present invention.
Claims (9)
1. A display method of an android application in a PC display is characterized by comprising the following steps:
the method comprises the steps that an Android system running in an Android compatible environment sends interface data of started Android applications to an Android application display buffer area running on a desktop operating system, and an Android application container window running on the desktop operating system reads data needing to be displayed from the Android application display buffer area and displays the Android applications in a rolling mode on a horizontal screen display; the Android application container window calculates an undisplayed coordinate range of the interface data of the Android application which is not displayed, and sends the undisplayed coordinate range to the Android system, and the Android system controls the Android application to be refreshed according to the undisplayed coordinate range;
the height of the output interface of the Android application container window is not larger than the height of the horizontal screen display, and the width of the output interface of the Android application container window is not smaller than the width of the interface of the Android application.
2. The method according to claim 1, wherein the Android application container window reads data to be displayed from an Android application display buffer area, and the method comprises the following steps: when the current interface of the Android application is displayed in the Android application container window for the first time, the Android application container window reads data to be displayed from the initial position of the Android application display buffer area according to the size of an output interface.
3. The method according to claim 1, wherein the Android application container window reads data to be displayed from an Android application display buffer area, and the method comprises the following steps: when a user drags a scroll bar in the Android application container window, the Android application container window calculates to obtain the distance between the top end of the Android application container window and the top end of an interface of an Android application stored in an Android application display buffer area, the distance is recorded as an offset, the range of data to be displayed is calculated according to the offset, and then the data to be displayed is read from the Android application display buffer area according to the obtained range.
4. The method according to claim 1, wherein the Android application container window obtains a user click event, and obtains click coordinates of a click position of the user click event; the Android application container window converts the click coordinates into application interface coordinates of a current interface of the Android application, and the Android application container window sends the application interface coordinates to the Android system.
5. The method according to claim 4, wherein the Android application container window sends the application interface coordinates to the Android system in a manner that: and the Android application container window sends an RPC message to the Android system.
6. A display device for an android application in a cross-screen display, comprising: the system comprises an Android compatible environment unit, an Android application display buffer area unit and an Android application container window unit;
the Android compatible environment unit is used for providing an operating environment of the Android system in a desktop operating system;
the Android application display buffer unit runs in a desktop operating system and is used for receiving the interface data of the Android application sent by the Android system and storing the interface data in the desktop operating system;
the Android application container window unit runs in a desktop operating system and is used for reading data to be displayed from the Android application display buffer area unit and displaying the data to be displayed in the desktop operating system, so that the Android application is displayed in a rolling manner in the horizontal screen display; the Android application container window unit calculates to obtain a coordinate range of the interface data of the Android application which is not displayed, and sends the coordinate range to the Android system; the height of the interface generated by the Android application container window unit is not more than that of the horizontal screen display, and the width of the interface is not less than that of the Android application;
when the current interface of the Android application is displayed in the Android application container window unit for the first time, the Android application container window unit reads data to be displayed from the initial position of the Android application display buffer area according to the size of an output interface.
7. The display device according to claim 6, wherein when the Android application container window unit displays the current interface of the Android application for the first time, the Android application container window reads data to be displayed from a starting position of the Android application display buffer according to the size of an output interface.
8. The display device according to claim 6, wherein when the Android application container window unit drags a scroll bar in the Android application container window, the Android application container window unit calculates a distance between a top end of an output interface of the Android application container window and a top end of an interface of an Android application stored in an Android application display buffer, the distance is recorded as an offset, a range of data to be displayed is calculated according to the offset, and then data to be displayed is read from the Android application display buffer according to the obtained range.
9. The display device according to claim 6, wherein when the Android application container window unit obtains a user click event, the Android application container window unit converts the obtained click coordinate of the click position of the user click event into an application interface coordinate of a current interface of the Android application, and the Android application container window unit sends the application interface coordinate to the Android system.
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