程序包 ohos.agp.graphics

类 Surface

java.lang.Object

ohos.agp.graphics.Surface

所有已实现的接口:

Sequenceable

public class Surface
extends Object
implements Sequenceable

Processes data in the buffer that is managed by a screen compositor, and uses the data for drawing on the screen.

从以下版本开始:

3

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	Surface.PixelFormat	Enumerates the pixel format of raw image data.

从接口继承的嵌套类/接口 ohos.utils.Sequenceable

Sequenceable.Producer<T>

构造器概要

构造器

构造器	说明
Surface()	Default constructor used to create a Surface instance.

方法概要

限定符和类型	方法	说明
Canvas	acquireCanvas()	Obtains a Canvas instance for drawing.
boolean	bindToTextureHolder(TextureHolder textureHolder)	Bind a Surface instance to a TextureHolder.
boolean	marshalling(Parcel out)	Marshals this Sequenceable object into a Parcel.
boolean	showRawImage(byte[] rawImageData, Surface.PixelFormat format, int width, int height)	Displays an image based on its raw data in a specified format and size.
void	syncCanvasDrawCalls()	Synchronizes the draw calls on the Canvas object for rendering.
boolean	unmarshalling(Parcel in)	Unmarshals this Sequenceable object from a Parcel.

从类继承的方法 java.lang.Object

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

从接口继承的方法 ohos.utils.Sequenceable

hasFileDescriptor

构造器详细资料

Surface

public Surface()

Default constructor used to create a Surface instance.

方法详细资料

acquireCanvas

public Canvas acquireCanvas()

Obtains a Canvas instance for drawing.

返回:

Returns the Canvas instance.

从以下版本开始:

3

syncCanvasDrawCalls

public void syncCanvasDrawCalls()

Synchronizes the draw calls on the Canvas object for rendering.

从以下版本开始:

3

bindToTextureHolder

public boolean bindToTextureHolder(TextureHolder textureHolder)

Bind a Surface instance to a TextureHolder.

参数:

textureHolder - Indicates the TextureHolder of this surface to bind.

返回:

Returns true if the surface is successfully bound to textureholder; returns false otherwise.

marshalling

public boolean marshalling(Parcel out)

从接口复制的说明: Sequenceable

Marshals this Sequenceable object into a Parcel.

指定者:

marshalling 在接口中 Sequenceable

参数:

out - Indicates the Parcel object to which the Sequenceable object will be marshaled..

返回:

Returns true if the marshalling is successful; returns false otherwise.

unmarshalling

public boolean unmarshalling(Parcel in)

从接口复制的说明: Sequenceable

Unmarshals this Sequenceable object from a Parcel.

指定者:

unmarshalling 在接口中 Sequenceable

参数:

in - Indicates the Parcel object into which the Sequenceable object has been marshaled.

返回:

Returns true if the unmarshalling is successful; returns false otherwise.

showRawImage

public boolean showRawImage(byte[] rawImageData,
                            Surface.PixelFormat format,
                            int width,
                            int height)

Displays an image based on its raw data in a specified format and size.

参数:

rawImageData - Indicates the array of the raw image data. The length is determined by the image PixelFormat, width, and height.

format - Indicates the raw data PixelFormat of the image to display.

width - Indicates the width of the image to display.

height - Indicates the height of the image to display.

返回:

Returns true if the image is successfully displayed; returns false otherwise.

从以下版本开始:

3