程序包 ohos.media.image

类 PixelMap.InitializationOptions

java.lang.Object

ohos.media.image.PixelMap.InitializationOptions

封闭类:

PixelMap

public static class PixelMap.InitializationOptions
extends Object

Represents pixel map initialization options, including the image size, pixel format, and alpha type.

从以下版本开始:

3

字段概要

字段

限定符和类型	字段	说明
AlphaType	alphaType	Indicates the expected alpha type of the pixel map to be created.
boolean	editable	Specifies whether pixel values of the pixel map to be created can be edited.
PixelFormat	pixelFormat	Indicates the expected format of the pixel map to be created.
boolean	releaseSource	Specifies whether the source pixel map will be automatically released after a new one is created based on the source one.
ScaleMode	scaleMode	Indicates the scaling effect used when the aspect ratio of the original image is different from that of the target image.
Size	size	Indicates the expected size of the pixel map to be created.
boolean	useSourceIfMatch	Specifies whether the source pixel map will be directly returned as a new one when the source one matches the initialization options for creating the new one.

构造器概要

构造器

构造器	说明
InitializationOptions()

方法概要

从类继承的方法 java.lang.Object

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

字段详细资料

alphaType

public AlphaType alphaType

Indicates the expected alpha type of the pixel map to be created. When the value is AlphaType#UNKNOWN:

• If there is a source pixel map, its alpha type will be used for the creation.
• If there is no source pixel map, either AlphaType#PREMUL (for the alpha channel is included in the pixel format) or AlphaType#OPAQUE (for the alpha channel not included in the pixel format) will be used for the creation.

从以下版本开始:

3

editable

public boolean editable

Specifies whether pixel values of the pixel map to be created can be edited. Value true means that the values can be edited, and false means the opposite. The default value is false.

从以下版本开始:

3

pixelFormat

public PixelFormat pixelFormat

Indicates the expected format of the pixel map to be created. When the value is PixelFormat#UNKNOWN:

• If there is a source pixel map, its format will be used for the creation.
• If there is no source pixel map, PixelFormat#ARGB_8888 will be used.

.

从以下版本开始:

3

releaseSource

public boolean releaseSource

Specifies whether the source pixel map will be automatically released after a new one is created based on the source one. Value true means that the source one will be released except that it is directly returned as the new pixel map, and false means that the source one will not be released.

从以下版本开始:

3

scaleMode

public ScaleMode scaleMode

Indicates the scaling effect used when the aspect ratio of the original image is different from that of the target image. The default value is ScaleMode#FIT_TARGET_SIZE.

从以下版本开始:

3

size

public Size size

Indicates the expected size of the pixel map to be created. If the value is null and there is a source pixel map, the size of the source pixel map will be used for the creation.

从以下版本开始:

3

useSourceIfMatch

public boolean useSourceIfMatch

Specifies whether the source pixel map will be directly returned as a new one when the source one matches the initialization options for creating the new one. Value true means that the source pixel map will be returned, and false means the opposite. The default value is false.

从以下版本开始:

3

构造器详细资料

InitializationOptions

public InitializationOptions()