程序包 ohos.media.image.common

枚举 PixelFormat

java.lang.Object

java.lang.Enum<PixelFormat>

ohos.media.image.common.PixelFormat

所有已实现的接口:

Serializable, Comparable<PixelFormat>

public enum PixelFormat
extends Enum<PixelFormat>

Describes image pixel formats.

A pixel format of image data describes the components of a pixel and the layout of the components stored in memory. Common pixel formats include ARGB_8888 and RGBA_8888.

从以下版本开始:

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SystemCapability

SystemCapability.Multimedia#IMAGE

枚举常量概要

枚举常量

枚举常量	说明
ARGB_8888	Indicates that each pixel is stored on 32 bits.
RGB_565	Indicates that each pixel is stored on 16 bits.
UNKNOWN	Indicates an unknown format.

方法概要

限定符和类型	方法	说明
int	getValue()	Obtains an enum value.
static PixelFormat	valueOf(String name)	返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)
static PixelFormat[]	values()	按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示: for (PixelFormat c : PixelFormat.values()) System.out.println(c);

从类继承的方法 java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

UNKNOWN

public static final PixelFormat UNKNOWN

Indicates an unknown format.

ARGB_8888

public static final PixelFormat ARGB_8888

Indicates that each pixel is stored on 32 bits. Components A, R, G, and B each occupies 8 bits and are stored from the higher-order to the lower-order bits.

RGB_565

public static final PixelFormat RGB_565

Indicates that each pixel is stored on 16 bits. Only the R, G, and B components are encoded from the higher-order to the lower-order bits: red is stored with 5 bits of precision, green is stored with 6 bits of precision, and blue is stored with 5 bits of precision.

方法详细资料

values

public static PixelFormat[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (PixelFormat c : PixelFormat.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static PixelFormat valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

getValue

public int getValue()

Obtains an enum value.

返回:

Returns the enum value.

从以下版本开始:

1