android图片处理之让图片一直匀速旋转

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

 <rotate
 android:duration="5000"
 android:fromDegrees="0"
 android:pivotX="50%"
 android:pivotY="50%"
 android:repeatCount="-1"
 android:repeatMode="restart"
 android:toDegrees="360" />

</set>

</
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:background="#ff00ff"
 >

<com.example.circleimageview.CircleImageView 
 android:id="@+id/imageview"
 android:layout_width="100dp"
 android:layout_height="100dp"
 android:layout_centerInParent="true"
 android:src="@drawable/control_image"
 />
</RelativeLayout>

import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.LinearInterpolator;
import android.widget.ImageView;

public class MainActivity extends Activity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 
 ImageView imageView = (ImageView) findViewById(R.id.imageview);
 //动画
  Animation animation = AnimationUtils.loadAnimation(this, R.anim.img_animation);
 LinearInterpolator lin = new LinearInterpolator();//设置动画匀速运动
 animation.setInterpolator(lin);
 imageView.startAnimation(animation);
 }

}