程序包 ohos.agp.components

类 ComponentProvider.Action

java.lang.Object

ohos.agp.components.ComponentProvider.Action

所有已实现的接口:

Sequenceable

封闭类:

ComponentProvider

public abstract static class ComponentProvider.Action
extends Object
implements Sequenceable

Describes actions that can be performed on remote components.

Remote components are a component hierarchy that can be displayed and updated in another application.

从以下版本开始:

1

嵌套类概要

从接口继承的嵌套类/接口 ohos.utils.Sequenceable

Sequenceable.Producer<T>

字段概要

字段

限定符和类型	字段	说明
static int	MERGE_REPLACE	Allows merging and replacement.
int	viewId	Indicates the component ID.

构造器概要

构造器

构造器	说明
Action()

方法概要

限定符和类型	方法	说明
abstract void	apply(ComponentContainer root)	Applies the action of updating component content.
String	getActionKey()	Obtains the action key.
abstract int	getActionTag()	Obtains the action type.
int	mergeOperation()	Returns the merge behavior.

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, marshalling, unmarshalling

字段详细资料

MERGE_REPLACE

public static final int MERGE_REPLACE

Allows merging and replacement.

When multiple ComponentProvider.Action are applied to the same attribute of the same component, these actions can be merged.

从以下版本开始:

1

另请参阅:

常量字段值

viewId

public int viewId

Indicates the component ID.

从以下版本开始:

3

构造器详细资料

Action

public Action()

方法详细资料

apply

public abstract void apply(ComponentContainer root)
                    throws ComponentProvider.ComponentProviderException

Applies the action of updating component content.

参数:

root - Indicates the root node of all components defined by ComponentProvider.

抛出:

ComponentProvider.ComponentProviderException - Throws this exception if the system cannot handle an error.

从以下版本开始:

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mergeOperation

public int mergeOperation()

Returns the merge behavior. The default value is MERGE_REPLACE.

返回:

Returns MERGE_REPLACE by default.

从以下版本开始:

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getActionTag

public abstract int getActionTag()

Obtains the action type.

The returned action type varies depending on ComponentProvider.Action.

返回:

Returns the action type.

从以下版本开始:

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getActionKey

public String getActionKey()

Obtains the action key.

Each action has a unique key for identification.

返回:

Returns the action key.

从以下版本开始:

1