Android - ImageView图形不断旋转的动画

1. res下建立一个动画文件夹anim
2. anim文件夹下面建立名称为：rotaterepeat动画xml文件

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<rotate
android:duration="1000"
android:fromDegrees="0"
android:interpolator="@android:anim/linear_interpolator"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="-1"
android:toDegrees="360" />
</set>
3. Activity文件下

ImageView mAnimationView = (ImageView) findViewById(R.id.animation);
mAnimation = AnimationUtils.loadAnimation(this, R.anim.rotaterepeat);
mAnimationView.startAnimation(mAnimation);