Details on Android animation effects translate, scale, alpha, and rotate

<?xml version="1.0" encoding="utf-8"?>  
<set xmlns:andro>  
<alpha  
  android:fromAlpha="1.0"   
  android:toAlpha="0.0"   
  android:duration="500" />  
</set>  
<!--   
  fromAlpha:Transparency at the beginning  
  toAlpha： End transparency  
  duration：Animation duration --> 

<?xml version="1.0" encoding="utf-8"?>  
<set xmlns:andro>  
<alpha  
  android:fromAlpha="0.0"   
  android:toAlpha="1.0"   
  android:duration="500" />  
</set>  
<!--   
  fromAlpha:Transparency at the beginning  
  toAlpha： End transparency  
  duration：Animation duration --> 

<?xml version="1.0" encoding="utf-8"?>  
<set xmlns:andro>  
<rotate                     
  android:interpolator="@android:anim/accelerate_decelerate_interpolator"  
  android:fromDegrees="300"  
  android:toDegrees="-360"  
  android:pivotX="10%"  
  android:pivotY="100%"  
  android:duration="10000" />  
</set>  
<!--   
 fromDegrees  Angle at the beginning of the animation  
 toDegrees   The rotation angle of the object at the end of the animation,Forward means clockwise   
 pivotX  The attribute is the animation relative to the objectXThe start position of the coordinates  
 pivotY  The attribute is the animation relative to the objectYThe start position of the coordinates  -->  

<?xml version="1.0" encoding="utf-8"?>  
<set xmlns:andro>  
<scale   
  android:interpolator= "@android:anim/decelerate_interpolator"     
  android:fromXScale="0.0"   
  android:toXScale="1.5"   
  android:fromYScale="0.0"   
  android:toYScale="1.5"   
  android:pivotX="50%"   
  android:pivotY="50%"   
  android:startOffset="0"   
  android:duration="10000"   
  android:repeatCount="1"   
  android:repeatMode="reverse" />  
</set>  
  
<!--   
fromXDelta,fromYDelta    At the beginningX，Ycoordinate,屏幕右下角的coordinate是X:320,Y:480  
toXDelta， toYDelta   At the end of the animationX,Y的coordinate --> <!--   
interpolator          Specify an animation inserter  
Common ones include acceleration and deceleration inserts     accelerate_decelerate_interpolator  
Accelerator inserter        accelerate_interpolator，  
Reducing inserter        decelerate_interpolator。  
fromXScale,fromYScale，     Before the animation beginsX,YZoom of，0.0To not display， 1.0It is normal size  
toXScale，toYScale，     Multiple of the final scaling of the animation， 1.0It is normal size，Greater than1.0enlarge  
pivotX， pivotY     Start position of animation，Percentage relative to screen,Both are50%Indicates that the animation starts from the middle of the screen  
startOffset，        The interval between multiple animation executions，If only once，This period of time will be paused before execution，  
          Unit milliseconds duration，Time spent on an animation effect，Unit milliseconds，  
          The smaller the value, the faster the animation speed repeatCount，Count of animation repetitions，The animation will execute this value+1Second-rate  
          repeatMode，Animation repeating mode，reverseFor reverse，当第偶Second-rate执行时，The animation direction will be opposite。  
          restartFor re-execution，The direction remains unchanged --> 

<?xml version="1.0" encoding="utf-8"?>  
<set xmlns:andro>  
<translate  
  android:fromXDelta="320"  
  android:toXDelta="0"  
  android:fromYDelta="480"  
  android:toYDelta="0"  
  android:duration="10000" />  
</set>  
<!--   
fromXDelta,fromYDelta  At the beginningX，Ycoordinate,屏幕右下角的coordinate是X:320,Y:480  
toXDelta， toYDelta   At the end of the animationX,Y的coordinate -->