程序包 ohos.agp.components

类 Component.EstimateSpec

java.lang.Object

ohos.agp.components.Component.EstimateSpec

封闭类:

Component

public static class Component.EstimateSpec
extends Object

Defines the measure specifications of a component.

A EstimateSpec encapsulates the arrangement requirements that a child component inherits from the parent. Each EstimateSpec indicates the requirement for either the width or height as well as a mode. There are three possible modes for EstimateSpec: UNCONSTRAINT, PRECISE, and NOT_EXCEED.

从以下版本开始:

5

字段概要

字段

限定符和类型	字段	说明
static int	ESTIMATED_STATE_BIT_MASK	Bits of state for estimated size
static int	NOT_EXCEED	In this mode, the maximum size has been specified for the child.
static int	PRECISE	In this mode, the parent has determined the exact size of the child.
static int	UNCONSTRAINT	In this mode, the parent has no constraint on the child, meaning that the child can be whatever size it wants.

构造器概要

构造器

构造器	说明
EstimateSpec()

方法概要

限定符和类型	方法	说明
static int	getChildSizeWithMode(int size, int estimatedConfig, int childEstimatedConfig)	Creates a measure specification for the child component based on the specified size and mode.
static int	getMode(int estimateSpec)	Obtains the showing mode of this component.
static int	getSize(int estimateSpec)	Extracts the size from the provided estimate specification.
static int	getSizeWithMode(int size, int mode)	Creates a measure specification based on the specified size and mode.

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

ESTIMATED_STATE_BIT_MASK

public static final int ESTIMATED_STATE_BIT_MASK

Bits of state for estimated size

另请参阅:

常量字段值

NOT_EXCEED

public static final int NOT_EXCEED

In this mode, the maximum size has been specified for the child. The child cannot exceed the specified size.

另请参阅:

常量字段值

PRECISE

public static final int PRECISE

In this mode, the parent has determined the exact size of the child.

另请参阅:

常量字段值

UNCONSTRAINT

public static final int UNCONSTRAINT

In this mode, the parent has no constraint on the child, meaning that the child can be whatever size it wants.

另请参阅:

常量字段值

构造器详细资料

EstimateSpec

public EstimateSpec()

方法详细资料

getSizeWithMode

public static int getSizeWithMode(int size,
                                  int mode)

Creates a measure specification based on the specified size and mode.

参数:

size - Indicates the width or height contained in the measure specification.

mode - Indicates the mode contained in the measure specification. The value must be UNCONSTRAINT, PRECISE, or NOT_EXCEED.

返回:

Returns the size with a mode.

从以下版本开始:

5

getMode

public static int getMode(int estimateSpec)

Obtains the showing mode of this component.

参数:

estimateSpec - Indicates the estimate specification.

返回:

Returns the showing mode of this component.

从以下版本开始:

5

getSize

public static int getSize(int estimateSpec)

Extracts the size from the provided estimate specification.

参数:

estimateSpec - Indicates the measure specification.

返回:

Returns the size of the measure specification.

从以下版本开始:

5

getChildSizeWithMode

public static int getChildSizeWithMode(int size,
                                       int estimatedConfig,
                                       int childEstimatedConfig)

Creates a measure specification for the child component based on the specified size and mode.

参数:

size - Indicates how big the child component wants to be.

estimatedConfig - Indicates the mode of the parent.

childEstimatedConfig - Indicates the mode of the child component.

返回:

Returns the size with a mode for the child component.

从以下版本开始:

5