ItemAnimation

java.lang.Object
- ohos.agp.components.listcomponent.ItemAnimation

直接已知子类:

BaseItemAnimation
```
public abstract class ItemAnimation
extends Object
```
An abstract class that records the ComponentOwner information before and after the layout.
Four types of animation abstract APIs are provided based on the saved information, which are Disappearance, Appearance, Persistence, and Change.

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`	`ItemAnimation.ItemAnimationCleaner`	Implements the release of the native `ItemAnimation` object.
`static interface`	`ItemAnimation.ItemAnimationFinishedListener`	Implements the listening for the completion of all component animations.

字段概要

字段
限定符和类型	字段	说明
`protected static int`	`ANIMATION_CLASS_TYPE_BASEITEMANIMATION`	Indicates the basic item animation type.
`protected static int`	`ANIMATION_CLASS_TYPE_DEFAULTITEMANIMATION`	Indicates the default item animation type.
`protected static int`	`ANIMATION_CLASS_TYPE_ITEMANIMATION`	Indicates an item animation.
`protected long`	`mNativePtr`	The pointer to ItemAnimation.

构造器概要

构造器
构造器说明

ItemAnimation()
A constructor used to create an ItemAnimation instance.

构造器
构造器	说明
`ItemAnimation()`	A constructor used to create an `ItemAnimation` instance.

方法概要

所有方法实例方法抽象方法具体方法
限定符和类型	方法	说明
`protected void`	`createNativePtr()`	Creates a native pointer to this `ItemAnimation` instance.
`abstract void`	`finishAnimation(ComponentOwner item)`	Ends an animation on a component immediately.
`abstract void`	`finishAnimations()`	Ends animations on all components immediately.
`long`	`getAddAnimationTime()`	Obtains the duration for which all add animations will run.
`long`	`getChangeAnimationTime()`	Obtains the duration for which all change animations will run.
`long`	`getMoveAnimationTime()`	Obtains the duration for which all move animations will run.
`long`	`getNativePtr()`	Obtains the native object.
`long`	`getRemoveAnimationTime()`	Obtains the duration for which all remove animations will run.
`abstract boolean`	`isRunning()`	Checks whether any component animation is running.
`boolean`	`isRunning(ItemAnimation.ItemAnimationFinishedListener listener)`	Checks whether any component animation is running and if yes, registers a listener to observe the animation status.
`void`	`onAnimationFinished(ComponentOwner componentOwner)`	Called when an animation finishes running on a component.
`void`	`onAnimationStarted(ComponentOwner componentOwner)`	Called when an animation starts running on a component.
`void`	`setAddAnimationTime(long addAnimationTime)`	Sets the duration for which all add animations will run.
`void`	`setChangeAnimationTime(long changeAnimationTime)`	Sets the duration for which all change animations will run.
`void`	`setMoveAnimationTime(long moveAnimationTime)`	Sets the duration for which all move animations will run.
`void`	`setRemoveAnimationTime(long removeAnimationTime)`	Sets the duration for which all remove animations will run.

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
  - ANIMATION_CLASS_TYPE_BASEITEMANIMATION
```
protected static final int ANIMATION_CLASS_TYPE_BASEITEMANIMATION
```
    Indicates the basic item animation type.
    
    从以下版本开始:
    
    7
    
    另请参阅:
    
    常量字段值
  - ANIMATION_CLASS_TYPE_DEFAULTITEMANIMATION
```
protected static final int ANIMATION_CLASS_TYPE_DEFAULTITEMANIMATION
```
    Indicates the default item animation type.
    
    从以下版本开始:
    
    7
    
    另请参阅:
    
    常量字段值
  - ANIMATION_CLASS_TYPE_ITEMANIMATION
```
protected static final int ANIMATION_CLASS_TYPE_ITEMANIMATION
```
    Indicates an item animation.
    
    从以下版本开始:
    
    7
    
    另请参阅:
    
    常量字段值
  - mNativePtr
```
protected long mNativePtr
```
    The pointer to ItemAnimation.
- 构造器详细资料
  - ItemAnimation
```
public ItemAnimation()
```
    A constructor used to create an ItemAnimation instance.
    
    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.
  - createNativePtr
```
protected void createNativePtr()
```
    Creates a native pointer to this ItemAnimation instance.
    
    从以下版本开始:
    
    7
  - getMoveAnimationTime
```
public long getMoveAnimationTime()
```
    Obtains the duration for which all move animations will run.
    
    返回:
    
    Returns the duration.
    
    从以下版本开始:
    
    7
  - setMoveAnimationTime
```
public void setMoveAnimationTime(long moveAnimationTime)
```
    Sets the duration for which all move animations will run.
    
    参数:
    
    moveAnimationTime - Indicates the duration to set.
    
    从以下版本开始:
    
    7
  - getAddAnimationTime
```
public long getAddAnimationTime()
```
    Obtains the duration for which all add animations will run.
    
    返回:
    
    Returns the duration.
    
    从以下版本开始:
    
    7
  - setAddAnimationTime
```
public void setAddAnimationTime(long addAnimationTime)
```
    Sets the duration for which all add animations will run.
    
    参数:
    
    addAnimationTime - Indicates the duration to set.
    
    从以下版本开始:
    
    7
  - getRemoveAnimationTime
```
public long getRemoveAnimationTime()
```
    Obtains the duration for which all remove animations will run.
    
    返回:
    
    Returns the duration if obtained; returns 120 if an exception occurs.
    
    从以下版本开始:
    
    7
  - setRemoveAnimationTime
```
public void setRemoveAnimationTime(long removeAnimationTime)
```
    Sets the duration for which all remove animations will run.
    
    参数:
    
    removeAnimationTime - Indicates the duration to set.
    
    从以下版本开始:
    
    7
  - getChangeAnimationTime
```
public long getChangeAnimationTime()
```
    Obtains the duration for which all change animations will run.
    
    返回:
    
    Returns the duration.
    
    从以下版本开始:
    
    7
  - setChangeAnimationTime
```
public void setChangeAnimationTime(long changeAnimationTime)
```
    Sets the duration for which all change animations will run.
    
    参数:
    
    changeAnimationTime - Indicates the duration to set.
    
    从以下版本开始:
    
    7
  - finishAnimation
```
public abstract void finishAnimation(ComponentOwner item)
```
    Ends an animation on a component immediately.
    
    参数:
    
    item - Indicates the ComponentOwner of the component.
    
    从以下版本开始:
    
    7
  - finishAnimations
```
public abstract void finishAnimations()
```
    Ends animations on all components immediately.
    
    从以下版本开始:
    
    7
  - isRunning
```
public abstract boolean isRunning()
```
    Checks whether any component animation is running. You can use this method to determine whether to delay other actions until the animation ends.
    
    返回:
    
    Returns true if any animation is running; returns false otherwise.
    
    从以下版本开始:
    
    7
  - isRunning
```
public final boolean isRunning(ItemAnimation.ItemAnimationFinishedListener listener)
```
    Checks whether any component animation is running and if yes, registers a listener to observe the animation status. A callback is invoked when the animation ends, if any. If no animation is running, the callback is invoked immediately.
    
    参数:
    
    listener - Indicates the listener to register. A callback is invoked if no animation is running or the running animation ends. If this parameter is set to null, this method is equivalent to isRunning().
    
    返回:
    
    Returns true if any animation is running; returns false otherwise.
    
    从以下版本开始:
    
    7
  - onAnimationStarted
```
public void onAnimationStarted(ComponentOwner componentOwner)
```
    Called when an animation starts running on a component.
    
    参数:
    
    componentOwner - Indicates the ComponentOwner of the component on which the animation starts running.
    
    从以下版本开始:
    
    7
  - onAnimationFinished
```
public void onAnimationFinished(ComponentOwner componentOwner)
```
    Called when an animation finishes running on a component.
    
    参数:
    
    componentOwner - Indicates the ComponentOwner of the component on which the animation finishes running. There may be other animations running on this component.
    
    从以下版本开始:
    
    7

类 ItemAnimation

嵌套类概要

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

ANIMATION_CLASS_TYPE_BASEITEMANIMATION

ANIMATION_CLASS_TYPE_DEFAULTITEMANIMATION

ANIMATION_CLASS_TYPE_ITEMANIMATION

mNativePtr

构造器详细资料

ItemAnimation

方法详细资料

getNativePtr

createNativePtr

getMoveAnimationTime

setMoveAnimationTime

getAddAnimationTime

setAddAnimationTime

getRemoveAnimationTime

setRemoveAnimationTime

getChangeAnimationTime

setChangeAnimationTime

finishAnimation

finishAnimations

isRunning

isRunning

onAnimationStarted

onAnimationFinished