CN114416231A - Virtual split screen display method and virtual split screen and screen combination switching method for vehicle-mounted entertainment system - Google Patents
Virtual split screen display method and virtual split screen and screen combination switching method for vehicle-mounted entertainment system Download PDFInfo
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- CN114416231A CN114416231A CN202111573826.3A CN202111573826A CN114416231A CN 114416231 A CN114416231 A CN 114416231A CN 202111573826 A CN202111573826 A CN 202111573826A CN 114416231 A CN114416231 A CN 114416231A
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- 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
- G06F9/452—Remote windowing, e.g. X-Window System, desktop virtualisation
Abstract
The invention relates to a virtual split screen display method and a split screen and screen combination switching method for a vehicle-mounted entertainment system. The split-screen display method comprises the following steps: a user initiates a screen splitting operation command, and an Android system creates a virtual screen; and after the screen simulating screen is established, the Android system establishes an application stack related to the virtual screen, starts the application stack and appoints the application stack to display. The split screen and screen combination switching method comprises the following steps: the method is characterized in that split screen display is realized based on a virtual split screen display method of the vehicle-mounted entertainment system, a user initiates a screen closing operation command, the size of the FirstDisplay is adjusted, and the VirtualDisplay is hidden. The virtual split screen display method of the vehicle-mounted entertainment system realizes split screen display on the vehicle-mounted entertainment system with one physical screen, and the two regions of the split screen support normal application experience operation of two users. According to the virtual split screen and screen combination switching method for the vehicle-mounted entertainment system, the requirement of split screen is met by using virtual display in the Android large-screen vehicle-mounted entertainment system, and the animation process has no harsh or black screen experience in the process of switching between the large screen and the split screen.
Description
Technical Field
The invention relates to the technical field of terminal application, in particular to a virtual split screen display method and a virtual split screen and screen combination switching method for a vehicle-mounted entertainment system.
Background
Currently, an Android system is mainly used in a vehicle-mounted cabin entertainment system, and the Android system is designed for a mobile phone, for example, only one hardware display device is generally supported, only one system supports single-user operation, and the like, so that the Android system as a vehicle-mounted system needs to be deeply customized, for example, the Android system supports multiple display devices, supports multiple-user operation, and the like. The technology is a method for customizing an Android system to realize double-user split screen display aiming at a vehicle-mounted large screen system. The Android system supports split screen, but the split screen is designed for a single user, and has the following defects: the application cannot be fixedly started in a main driving area or a secondary driving area of a screen, cannot support double launchers, cannot support double system uis, only supports single-receiver apps, and hardly supports double-user touch input. Namely, the Android system is in a split screen state, and the operation of the left area and the right area of the screen needs to ensure the support of two users, namely for the user experience, the Android system is completely in two systems.
Meanwhile, when the split-screen Display requirement on one physical screen is met, namely the large screen is switched to the split-screen mode and the split-screen mode is switched to the large screen mode, the Android does not support the dynamic adjustment of the Display by default, and the problem of long switching of hard or black screens is caused.
Disclosure of Invention
The invention provides a virtual split screen Display method and a virtual split screen combined screen switching method for a vehicle-mounted entertainment system, aiming at overcoming the problems that in the prior art, an Android system cannot be fixedly started in a main driving area or a secondary driving area of a screen in a split screen state, cannot support double launchers, cannot support double system UIs, only supports single receiver apps, is difficult to expand and support double-user touch input, and when the split screen Display requirement on one physical screen is realized, the large screen is switched to a split screen mode and the split screen mode is switched to the large screen mode, and the Android default does not support the dynamic adjustment of Display, so that the problem of hard switching or long screen blacking is caused.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a virtual split screen display method for a vehicle-mounted entertainment system is disclosed, the vehicle-mounted entertainment system is based on an Android system, the Android version is greater than or equal to 5.0, the vehicle-mounted entertainment system comprises vehicle-mounted host hardware and a large screen connected with the vehicle-mounted host hardware, and the method comprises the following steps:
s10, a user initiates a screen splitting operation command, and an Android system creates a virtual screen; i.e. enabling the creation of the second display.
And S20, after the screen simulating screen is established, the Android system establishes an application stack related to the virtual screen, starts the application stack and appoints the application stack to display. Namely, the created second display is subjected to the specified position display.
Further, as a preferred technical solution, step S10 specifically includes:
a user initiates a split screen operation command to create a surfaceSession;
creating a Surface control, creating a virtual screen Surface through the Surface control, and simultaneously creating a virtual display;
and binding the virtual screen Surface to the virtual display to complete the creation of the virtual screen.
Further, as a preferred technical solution, step S20 specifically includes:
after the screen simulating screen is established, establishing a SecondSystemUI and a SecondLauncher by ActivinManagerservice of the Android system;
starting a second SystemUI and a second launcher;
the designated SecondSystemUI and SecondLauncher are displayed on the current VirtualDisplay. The method is used for preparing display content through ActivityManagerService, and moving the display to the display range in a mode of attribute animation after the VirtualDisplay display content is ready.
Further, as a preferred embodiment, step S20 further includes:
after starting the SecondSystemUI and the SecondLauncher, a start display animation command and a display animation end command are also executed, and the FirstDisplay size is adjusted. This step is used to adjust the size of the first display, that is, after the display is moved to the display range in the above step, the original large screen FirstDisplay (the first display) will be blocked, so resize operation needs to be performed to adjust the size of the FirstDisplay.
Further, as a preferred technical solution, the method further comprises: after the VirtualDisplay is created, the initial position of the VirtualDisplay is set. That is, after the VirtualDisplay is created, since the application is not ready, in order to avoid a black screen, it is necessary to set the initial position (int X, int Y) of the VirtualDisplay to be out of the screen.
Further, as a preferred technical scheme, the size of the large screen is 4032mmX756mm at the minimum.
Further, as a preferred technical scheme, the vehicle-mounted entertainment system realizes a split screen display function based on a VirtualDisplay technology.
A virtual split screen and screen combination switching method for a vehicle-mounted entertainment system is characterized in that the vehicle-mounted entertainment system is based on an Android system, the Android version is greater than or equal to 5.0, the vehicle-mounted entertainment system comprises vehicle-mounted host hardware and a large screen connected with the vehicle-mounted host hardware, and the method comprises the following steps:
s10, realizing split screen display by adopting the virtual split screen display method of the vehicle-mounted entertainment system;
s20, a user initiates a screen closing operation command, the size of the FirstDisplay is adjusted, and the VirtualDisplay is hidden.
Further, as a preferred technical solution, step S20 specifically includes:
a user initiates a screen closing operation command, and adjusts the size of the FirstDisplay to restore the original display size of the FirstDisplay; the large screen FirstDisplay size is restored.
The VirtualDisplay executes the hide animation command, moves the VirtualDisplay out of the visual range of the FirstDisplay, and sets it fully transparent. Namely, the second display created during the screen splitting operation is moved out of the visible area of the first display, and then the second display is set to be completely transparent, so that the screen combining operation is realized.
A storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a virtual split screen display method of a vehicle entertainment system as described above or implements the steps of a virtual split screen close screen switching method of a vehicle entertainment system as described above.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the virtual split screen display method of the vehicle-mounted entertainment system realizes split screen display on the vehicle-mounted entertainment system with one physical screen, and the two regions of the split screen support normal application experience operation of two users.
According to the virtual split screen and screen combination switching method for the vehicle-mounted entertainment system, the requirement of split screen is met by using virtual display in the Android large-screen vehicle-mounted entertainment system, and the animation process has no harsh or black screen experience in the process of switching between the large screen and the split screen.
Drawings
Fig. 1 is a schematic flow chart of a virtual split-screen display method of an in-vehicle entertainment system according to embodiment 1 of the present invention.
Fig. 2 is a schematic flow chart of a virtual split-screen and screen-closing switching method of the in-vehicle entertainment system in embodiment 1 of the present invention.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand for those skilled in the art and will therefore make the scope of the invention more clearly defined. .
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, if any, are used in the orientations and positional relationships indicated in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present patent.
Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.
Example 1
The embodiment discloses a virtual split-screen display method for a vehicle-mounted entertainment system, the vehicle-mounted entertainment system is based on an Android system, the Android version is greater than or equal to 5.0, and the vehicle-mounted entertainment system comprises vehicle-mounted host hardware and a large screen connected with the vehicle-mounted host hardware.
In this embodiment, the screen is a physically oversized screen with a minimum size of 4032mmX756 mm.
The vehicle-mounted entertainment system realizes the split screen display function based on the VirtualDisplay technology.
In this embodiment, the split screen process is denoted resize display.
The virtual split-screen display method of the vehicle-mounted entertainment system of the embodiment, as shown in fig. 1, includes the following steps:
s10, a user initiates a screen splitting operation (ResizeDisplay) command, and the Android system creates a virtual screen.
The method specifically comprises the following steps:
the user initiates a split screen operation command, resize display, which creates a surface session, i.e., a surface session.
Then, a Surface control is created, a Surface of the virtual screen, i.e. a Surface, is created by the Surface control, and a VirtualDisplay, i.e. a virtual display, also understood as a second display (second display) is created.
Binding the virtual screen Surface to the VirtualDisplay completes the creation of the virtual screen, i.e., the creation of the second display.
And S20, after the screen simulating screen is established, the Android system establishes an application stack related to the virtual screen, starts the application stack and appoints the application stack to display.
The method specifically comprises the following steps:
after the creation of the pseudo screen, the ActivinyManagerservice of the Android system creates SecondSystemUI and SecondLauncher. That is, the activity manager service of the Android system creates a second system user interface and a second launcher. It can also be understood that the ActivityManagerService of the Android system prepares the display content.
The second SystemUI and second launcher are started.
This step executes the second system user interface and the second launcher.
Launch the second SystemUI and second launcher display on the current VirtualDisplay.
In this step, the animation to be displayed is displayed on the VirtualDisplay through the second system user interface and the second starter, that is, after the second system ui and the second starter are started, the animation starting and displaying command and the animation displaying ending command are executed, the animation to be displayed is displayed on the current VirtualDisplay, and as a result, the problem of hard switching or long black screen switching is solved.
When the display animation on the Virtualdisplay is ready, the display is moved to the display range in the manner of property animation.
In this step, after the VirtualDisplay is moved to the visible area, the FirstDisplay size is adjusted.
That is, in this embodiment, after the VirtualDisplay moves to the visible area, the FirstDisplay displayed on the original large screen is blocked, and at this time, resize operation needs to be performed and the application is notified to adjust the layout, so as to adjust the size of the FirstDisplay, that is, adjust the size of the first display.
In this embodiment, after the virtual screen is created and before the application is not ready, that is, after the virtual display is created, and before the second system ui and the second launcher are created, in order to avoid the phenomenon of black screen, it is necessary to set the initial position (int X, int Y) of the virtual display to the outside of the screen.
The split-screen display process of the embodiment is as follows: the user initiates the split screen operation to create a virtual screen, namely, create a second display, adjust the display position of the second display, and then adjust the original large screen, namely, the size of the first display, to realize split screen display.
Example 2
The embodiment discloses a virtual split screen and screen combination switching method for a vehicle-mounted entertainment system, the vehicle-mounted entertainment system is based on an Android system, the Android version is greater than or equal to 5.0, and the vehicle-mounted entertainment system comprises vehicle-mounted host hardware and a large screen connected with the vehicle-mounted host hardware.
In this embodiment, the screen is a physically oversized screen with a minimum size of 4032mmX756 mm.
The vehicle-mounted entertainment system realizes the split screen display function based on the VirtualDisplay technology.
In this embodiment, the split screen process is denoted as resize display, and the close screen process is denoted as restore display.
The virtual split screen and screen combination switching method of the vehicle-mounted entertainment system of the embodiment is shown in fig. 2, and comprises the following steps:
s10, split screen display is achieved by adopting the virtual split screen display method of the vehicle-mounted entertainment system in the embodiment 1.
For example comprising
S101, a user initiates a screen splitting operation (ResizeDisplay) command, and the Android system creates a virtual screen.
The method specifically comprises the following steps:
the user initiates a split screen operation command, resize display, which creates a surface session, i.e., a surface session.
Then, a Surface control is created, a Surface of the virtual screen, i.e. a Surface, is created by the Surface control, and a VirtualDisplay, i.e. a virtual display, also understood as a second display (second display) is created.
Binding the virtual screen Surface to the VirtualDisplay completes the creation of the virtual screen, i.e., the creation of the second display.
And S102, after the screen simulating screen is established, the Android system establishes an application stack related to the virtual screen, starts the application stack and appoints the application stack to display.
The method specifically comprises the following steps:
after the creation of the pseudo screen, the ActivinyManagerservice of the Android system creates SecondSystemUI and SecondLauncher. That is, the activity manager service of the Android system creates a second system user interface and a second launcher. It can also be understood that the ActivityManagerService of the Android system prepares the display content.
The second SystemUI and second launcher are started.
This step executes the second system user interface and the second launcher.
Launch the second SystemUI and second launcher display on the current VirtualDisplay.
In this step, the animation to be displayed is displayed on the VirtualDisplay through the second system user interface and the second starter, that is, after the second system ui and the second launcher are started, the animation starting and displaying command and the animation displaying ending command are executed, and the animation to be displayed is displayed on the current VirtualDisplay.
When the display animation on the Virtualdisplay is ready, the display is moved to the display range in the manner of property animation.
In this step, after the VirtualDisplay is moved to the visible area, the FirstDisplay size is adjusted.
In this embodiment, the virtual split screen display is realized through the above steps.
In addition, in the process of realizing the virtual split screen display, animation is added, namely after the SecondSystemUI and the SecondLauncher are started, the operations of displaying the animation and ending the displaying the animation are started, so that the display is moved into the display range in a mode of attribute animation, and the problem of long harsh or black screen switching is solved.
S20, a user initiates a screen closing operation command, the size of the FirstDisplay is adjusted, and the VirtualDisplay is hidden.
The method specifically comprises the following steps:
the user initiates a screen close operation command, namely RestoreDisplay. At this time, to avoid a black screen, the first display is first adjusted in size to restore the original display size of the first display, that is, the size of the first display in the original large screen state is restored.
Meanwhile, in this embodiment, after the resize first display command is executed, a command for starting a hidden animation and a command for ending the hidden animation need to be executed, so that the VirtualDisplay executes the hidden animation command, moves the VirtualDisplay out of the visible range of the FirstDisplay, and sets all the VirtualDisplay to be transparent, thereby implementing the hidden SecondDisplay. I.e. to hide the second display, i.e. the created virtual screen.
The process of realizing screen combination in the step is as follows: and after a user initiates a screen closing operation command, namely RestoreDisplay, restoring the size of the first display to be the original large screen state, moving the second display created in the screen opening operation out of the visual area of the first display, and then setting the second display to be completely transparent to realize the screen closing operation.
In this embodiment, resize display is started when split screen display needs to be performed, and restore display is started when split screen display needs to be performed, so that split screen-split screen switching is realized.
Example 3
This embodiment discloses a storage medium storing a computer program, where the computer program includes at least one code, and the at least one code is executable by a main control device to control the main control device to implement the steps of the virtual split-screen display method of the in-vehicle entertainment system as described in embodiment 1 above.
Examples include:
the user initiates a split screen operation (resize display) command, and the Android system creates a virtual screen.
The method specifically comprises the following steps:
the user initiates a split screen operation command, resize display, which creates a surface session, i.e., a surface session.
Then, a Surface control is created, a Surface of the virtual screen, i.e. a Surface, is created by the Surface control, and a VirtualDisplay, i.e. a virtual display, also understood as a second display (second display) is created.
Binding the virtual screen Surface to the VirtualDisplay completes the creation of the virtual screen, i.e., the creation of the second display.
And after the screen simulating screen is established, the Android system establishes an application stack related to the virtual screen, starts the application stack and appoints the application stack to display.
The method specifically comprises the following steps:
after the creation of the pseudo screen, the ActivinyManagerservice of the Android system creates SecondSystemUI and SecondLauncher. That is, the activity manager service of the Android system creates a second system user interface and a second launcher. It can also be understood that the ActivityManagerService of the Android system prepares the display content.
The second SystemUI and second launcher are started.
This step executes the second system user interface and the second launcher.
Launch the second SystemUI and second launcher display on the current VirtualDisplay.
In this step, the animation to be displayed is displayed on the VirtualDisplay through the second system user interface and the second starter, that is, after the second system ui and the second starter are started, the animation starting and displaying command and the animation displaying ending command are executed, the animation to be displayed is displayed on the current VirtualDisplay, and as a result, the problem of hard switching or long black screen switching is solved.
When the display animation on the Virtualdisplay is ready, the display is moved to the display range in the manner of property animation.
In this step, after the VirtualDisplay is moved to the visible area, the FirstDisplay size is adjusted.
That is, in this embodiment, after the VirtualDisplay moves to the visible area, the FirstDisplay displayed on the original large screen is blocked, and at this time, resize operation needs to be performed and the application is notified to adjust the layout, so as to adjust the size of the FirstDisplay, that is, adjust the size of the first display.
The split-screen display is realized through the steps.
Or, the storage medium controlling main control device of this embodiment is used to implement the steps of the virtual split screen and screen combination switching method for the vehicle-mounted entertainment system as described in embodiment 2 above.
Examples include:
after the split-screen realization is realized by the method,
the user initiates a screen close operation command, namely RestoreDisplay. At this time, to avoid a black screen, the first display is first adjusted in size to restore the original display size of the first display, that is, the size of the first display in the original large screen state is restored.
Meanwhile, in this embodiment, after the resize first display command is executed, a command for starting a hidden animation and a command for ending the hidden animation need to be executed, so that the VirtualDisplay executes the hidden animation command, moves the VirtualDisplay out of the visible range of the FirstDisplay, and sets all the VirtualDisplay to be transparent, thereby implementing the hidden SecondDisplay. I.e. to hide the second display, i.e. the created virtual screen.
Therefore, the switching between split screen and screen combination is realized, and the problem of hard switching is solved because the animation is added in the process of split screen and screen combination.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A virtual split-screen display method for a vehicle-mounted entertainment system is characterized in that the vehicle-mounted entertainment system is based on an Android system, the Android version is greater than or equal to 5.0, the vehicle-mounted entertainment system comprises vehicle-mounted host hardware and a large screen connected with the vehicle-mounted host hardware, and the method comprises the following steps:
s10, a user initiates a screen splitting operation command, and an Android system creates a virtual screen;
and S20, after the screen simulating screen is established, the Android system establishes an application stack related to the virtual screen, starts the application stack and appoints the application stack to display.
2. The virtual split-screen display method for the vehicle-mounted entertainment system according to claim 1, wherein the step S10 specifically comprises:
a user initiates a split screen operation command to create a surfaceSession;
creating a Surface control, creating a virtual screen Surface through the Surface control, and simultaneously creating a virtual display;
and binding the virtual screen Surface to the virtual display to complete the creation of the virtual screen.
3. The virtual split-screen display method for the vehicle-mounted entertainment system according to claim 2, wherein the step S20 specifically comprises:
after the screen simulating screen is established, establishing a SecondSystemUI and a SecondLauncher by ActivinManagerservice of the Android system;
starting a second SystemUI and a second launcher;
the designated SecondSystemUI and SecondLauncher are displayed on the current VirtualDisplay.
4. The virtual split-screen display method for the in-vehicle entertainment system of claim 3, wherein the step S20 further comprises:
after starting the SecondSystemUI and the SecondLauncher, a start display animation command and a display animation end command are also executed, and the FirstDisplay size is adjusted.
5. The virtual split-screen display method of the vehicle-mounted entertainment system according to claim 3, further comprising: after the VirtualDisplay is created, the initial position of the VirtualDisplay is set.
6. The virtual split-screen display method of the in-vehicle entertainment system of claim 1, wherein the size of the large screen is 4032mmX756mm at the minimum.
7. The virtual split-screen display method of the vehicle-mounted entertainment system according to claim 1, wherein the vehicle-mounted entertainment system implements a split-screen display function based on a VirtualDisplay technology.
8. A virtual split screen and screen combination switching method for a vehicle-mounted entertainment system is characterized in that the vehicle-mounted entertainment system is based on an Android system, the Android version is greater than or equal to 5.0, the vehicle-mounted entertainment system comprises vehicle-mounted host hardware and a large screen connected with the vehicle-mounted host hardware, and the method comprises the following steps:
s10, realizing split screen display by adopting the virtual split screen display method of the vehicle-mounted entertainment system of any one of claims 1 to 6;
s20, a user initiates a screen closing operation command, the size of the FirstDisplay is adjusted, and the VirtualDisplay is hidden.
9. The virtual screen-splitting and screen-closing switching method for the vehicle-mounted entertainment system according to claim 8, wherein the step S20 specifically comprises:
a user initiates a screen closing operation command, and adjusts the size of the FirstDisplay to restore the original display size of the FirstDisplay;
the VirtualDisplay executes the hide animation command, moves the VirtualDisplay out of the visual range of the FirstDisplay, and sets it fully transparent.
10. A storage medium having stored thereon a computer program, wherein the computer program, when being executed by a processor, implements the steps of a virtual split screen display method for a vehicle entertainment system according to any one of claims 1 to 7 or implements the steps of a virtual split screen/closed screen switching method for a vehicle entertainment system according to any one of claims 8 to 9.
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