程序包 ohos.agp.window.service

类 WindowManager

java.lang.Object

ohos.agp.window.service.WindowManager

public class WindowManager
extends Object

Create a singleton WindowManager for creating and destroying Window objects.

从以下版本开始:

2

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	WindowManager.LayoutConfig	Encapsulate the layout attributes, flags, and constants used with a Window.
static class	WindowManager.NotchMode	Indicates the display mode of the notch.
static class	WindowManager.PermissionException	Describe the exception thrown when creating a window.

方法概要

限定符和类型	方法	说明
Window	addComponent(ComponentContainer component, Context context, int typeFlag)	Create a window based on the component layout, context, and window type.
PixelMap	captureScreen(Rect rectangle, int width, int height, int angle)	Take a screenshot.
void	destroyWindow(Window window)	Destroy a window.
static WindowManager	getInstance()	Obtain a singleton WindowManager.
Optional<Window>	getTopWindow()	Obtain the top window of the current application.
int	getWindowCount(Context context)	Obtain the number of all windows of the current application.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

getInstance

public static WindowManager getInstance()

Obtain a singleton WindowManager.

This is a static factory method.

返回:

Return the WindowManager instance.

getTopWindow

public Optional<Window> getTopWindow()

Obtain the top window of the current application.

返回:

Return the top window of the current application.

抛出:

NullPointerException - Throw this exception if mAGPWindowManager is null.

getWindowCount

public int getWindowCount(Context context)

Obtain the number of all windows of the current application.

参数:

context - Indicate the context of the windows.

返回:

Return the number of all windows of the current application.

抛出:

NullPointerException - Throw this exception if mAGPWindowManager is null.

addComponent

public Window addComponent(ComponentContainer component,
                           Context context,
                           int typeFlag)

Create a window based on the component layout, context, and window type.

参数:

component - Indicate the component layout defined by the user.

context - Indicate the context to use.

typeFlag - Indicate the window type.

返回:

Return the created window.

抛出:

NullPointerException - Throw this exception if mAGPWindowManager is null.

WindowManager.PermissionException - Throw this exception if agp window cannot show.

destroyWindow

public void destroyWindow(Window window)

Destroy a window.

参数:

window - Indicate the window to destroy.

captureScreen

public PixelMap captureScreen(Rect rectangle,
                              int width,
                              int height,
                              int angle)

Take a screenshot.

参数:

rectangle - Indicate the rectangle with the specified coordinates.

width - Indicate the width of the desired pixelmap.

height - Indicate the height of the desired pixelmap.

angle - Indicate the rotation angle. 0 indicates that no rotation is applied.

返回:

Return the pixelmap of the current screen.

抛出:

NullPointerException - Throw this exception if mAGPWindowManager is null.