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Added in API level 1

RotateAnimation

public class RotateAnimation
extends Animation

java.lang.Object
   ↳ android.view.animation.Animation
     ↳ android.view.animation.RotateAnimation


控制对象旋转的动画。 这种旋转发生在XY平面上。 您可以指定要用于旋转中心的点,其中(0,0)是左上角的点。 如果未指定,则(0,0)是默认的旋转点。

Summary

Inherited XML attributes

From class android.view.animation.Animation

Inherited constants

From class android.view.animation.Animation

Public constructors

RotateAnimation(Context context, AttributeSet attrs)

从资源加载RotateAnimation时使用的构造函数。

RotateAnimation(float fromDegrees, float toDegrees)

从代码构建RotateAnimation时使用的构造函数。

RotateAnimation(float fromDegrees, float toDegrees, float pivotX, float pivotY)

从代码构建RotateAnimation时使用的构造函数

RotateAnimation(float fromDegrees, float toDegrees, int pivotXType, float pivotXValue, int pivotYType, float pivotYValue)

从代码构建RotateAnimation时使用的构造函数

Public methods

void initialize(int width, int height, int parentWidth, int parentHeight)

使用被动画对象的维度以及对象父项来初始化此动画。

Protected methods

void applyTransformation(float interpolatedTime, Transformation t)

帮助getTransformation。

Inherited methods

From class android.view.animation.Animation
From class java.lang.Object

Public constructors

RotateAnimation

Added in API level 1
RotateAnimation (Context context, 
                AttributeSet attrs)

从资源加载RotateAnimation时使用的构造函数。

Parameters
context Context: Application context to use
attrs AttributeSet: Attribute set from which to read values

RotateAnimation

Added in API level 1
RotateAnimation (float fromDegrees, 
                float toDegrees)

从代码构建RotateAnimation时使用的构造函数。 默认的pivotX / pivotY点是(0,0)。

Parameters
fromDegrees float: Rotation offset to apply at the start of the animation.
toDegrees float: Rotation offset to apply at the end of the animation.

RotateAnimation

Added in API level 1
RotateAnimation (float fromDegrees, 
                float toDegrees, 
                float pivotX, 
                float pivotY)

从代码构建RotateAnimation时使用的构造函数

Parameters
fromDegrees float: Rotation offset to apply at the start of the animation.
toDegrees float: Rotation offset to apply at the end of the animation.
pivotX float: The X coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the left edge.
pivotY float: The Y coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the top edge.

RotateAnimation

Added in API level 1
RotateAnimation (float fromDegrees, 
                float toDegrees, 
                int pivotXType, 
                float pivotXValue, 
                int pivotYType, 
                float pivotYValue)

从代码构建RotateAnimation时使用的构造函数

Parameters
fromDegrees float: Rotation offset to apply at the start of the animation.
toDegrees float: Rotation offset to apply at the end of the animation.
pivotXType int: Specifies how pivotXValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
pivotXValue float: The X coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the left edge. This value can either be an absolute number if pivotXType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.
pivotYType int: Specifies how pivotYValue should be interpreted. One of Animation.ABSOLUTE, Animation.RELATIVE_TO_SELF, or Animation.RELATIVE_TO_PARENT.
pivotYValue float: The Y coordinate of the point about which the object is being rotated, specified as an absolute number where 0 is the top edge. This value can either be an absolute number if pivotYType is ABSOLUTE, or a percentage (where 1.0 is 100%) otherwise.

Public methods

initialize

Added in API level 1
void initialize (int width, 
                int height, 
                int parentWidth, 
                int parentHeight)

使用被动画对象的维度以及对象父项来初始化此动画。 (这是为了支持相对于这些尺寸指定的动画尺寸。)

解释动画的对象在调用 getTransformation(long, Transformation)之前 getTransformation(long, Transformation)知道 getTransformation(long, Transformation)对象的大小及其父对象的大小。

Parameters
width int: Width of the object being animated
height int: Height of the object being animated
parentWidth int: Width of the animated object's parent
parentHeight int: Height of the animated object's parent

Protected methods

applyTransformation

Added in API level 1
void applyTransformation (float interpolatedTime, 
                Transformation t)

帮助getTransformation。 子类应该实现这个以应用赋予插值的变换。 此方法的实现应始终替换指定的转换或其他文档。

Parameters
interpolatedTime float: The value of the normalized time (0.0 to 1.0) after it has been run through the interpolation function.
t Transformation: The Transformation object to fill in with the current transforms.

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