1.Interpolator:插补器

AccelerateDecelerateInterpolator:两边慢，中间加速

AccelerateInterpolator:开始慢，然后加速

BounceInterpolator:结束时弹起

2.多个动画时执行顺序：android:ording="together"

2.实例

<? xml version="1.0" encoding="utf-8">

<set

xmlns:android="http://,,,,androd"

android:ording="together">

<ObjectAnimator

android:propertyName="rotationX"

android:duration="500"

android:valueFrom="0"

android:toValue="360"

android:valueType="floatType"

android:repeatMode="restart"

android:repeatCount="3"

android:interpolator="android:interpolator/linar"/>

</set>

java代码引用：

AnimatorSet animtorSet=(AnimatorSet)AnimatorInflater.loadAnimator(this,R.animator.flip);

animator.setTarget(imageView);