程序包 ohos.agp.components.listcomponent

类 ComponentOwner

java.lang.Object

ohos.agp.components.listcomponent.ComponentOwner

public abstract class ComponentOwner
extends Object

An encapsulation class that stores the component object, position, status, and other information.

从以下版本开始:

7

嵌套类概要

嵌套类

限定符和类型	类	说明
protected static class	ComponentOwner.ComponentOwnerCleaner	Implements the release of the local ComponentOwner object.

字段概要

字段

限定符和类型	字段	说明
Component	itemComponent	Indicates the component that is bound to the ComponentOwner.

构造器概要

构造器

构造器	说明
ComponentOwner(Component component)	Default constructor used to create a ComponentOwner instance.

方法概要

限定符和类型	方法	说明
Provider<? extends ComponentOwner>	getBindingProvider()	Obtains the provider bound to this ListComponent.
long	getComponentId()	Obtains the ID of the component corresponding to this ComponentOwner.
int	getItemComponentType()	Obtains the type of the component corresponding to this ComponentOwner.
long	getNativePtr()	Obtains the native object.
int	getPositionInLayout()	Obtains the position of the component corresponding to this ComponentOwner in the provider after the latest layout.
int	getPositionInProvider()	Obtains the position of the component corresponding to this ComponentOwner in the provider.
boolean	isRecyclable()	Checks whether the component corresponding to this ComponentOwner can be reclaimed.
void	setRecyclable(boolean recyclable)	Sets whether the component corresponding to this ComponentOwner can be reclaimed.
String	toString()	Obtains a string representation of this ComponentOwner.

从类继承的方法 java.lang.Object

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

字段详细资料

itemComponent

public final Component itemComponent

Indicates the component that is bound to the ComponentOwner.

从以下版本开始:

7

构造器详细资料

ComponentOwner

public ComponentOwner(Component component)

Default constructor used to create a ComponentOwner instance.

参数:

component - Indicates the component bound to the ComponentOwner.

从以下版本开始:

7

方法详细资料

getNativePtr

public long getNativePtr()

Obtains the native object.

返回:

Returns the native object.

getPositionInLayout

public final int getPositionInLayout()

Obtains the position of the component corresponding to this ComponentOwner in the provider after the latest layout.

返回:

Returns the position of the component in the provider.

从以下版本开始:

7

getPositionInProvider

public final int getPositionInProvider()

Obtains the position of the component corresponding to this ComponentOwner in the provider.

返回:

Returns the position if the ComponentOwner exists in the provider and is bound to a valid component; returns -1 otherwise.

从以下版本开始:

7

getBindingProvider

public final Provider<? extends ComponentOwner> getBindingProvider()

Obtains the provider bound to this ListComponent.

返回:

Returns the provider if obtained; returns null otherwise.

从以下版本开始:

7

getComponentId

public final long getComponentId()

Obtains the ID of the component corresponding to this ComponentOwner.

返回:

Returns the component ID if the provider has a stable ID; returns -1 otherwise.

从以下版本开始:

7

getItemComponentType

public final int getItemComponentType()

Obtains the type of the component corresponding to this ComponentOwner.

返回:

Returns the component type.

从以下版本开始:

7

toString

public String toString()

Obtains a string representation of this ComponentOwner.

覆盖:

toString 在类中 Object

返回:

Returns a string representation, which contains the metadata of the ComponentOwner.

从以下版本开始:

7

setRecyclable

public final void setRecyclable(boolean recyclable)

Sets whether the component corresponding to this ComponentOwner can be reclaimed.

参数:

recyclable - Specifies whether the component can be reclaimed. The value true means that the component can be reclaimed, and false means the opposite.

从以下版本开始:

7

isRecyclable

public final boolean isRecyclable()

Checks whether the component corresponding to this ComponentOwner can be reclaimed.

返回:

Returns true if the component can be reclaimed; returns false otherwise.

从以下版本开始:

7