1 <?xml version="1.0" encoding="utf-8"?> 2 <objectAnimator xmlns:android="http://schemas.android.com/apk/res/android" 3     android:propertyName="backgroundColor" 4     android:duration="5000" 5     android:valueFrom="#ff0033" 6     android:valueTo="#000099" 7     android:repeatCount="infinite" 8     android:repeatMode="reverse" 9     android:valueType="intType">10 </objectAnimator>

 1 package com.soft.colorchangingdemo; 2  3 import android.animation.AnimatorInflater; 4 import android.animation.ArgbEvaluator; 5 import android.animation.ObjectAnimator; 6 import android.app.Activity; 7 import android.content.Context; 8 import android.os.Bundle; 9 import android.view.View;10 import android.widget.RelativeLayout;11 12 public class MainActivity extends Activity {13 14     @Override15     protected void onCreate(Bundle savedInstanceState) {16         super.onCreate(savedInstanceState);17         setContentView(R.layout.activity_main);18         init();19     }20 21     private void init() {22         RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout);23         AnimationView animationView = new AnimationView(this);24         relativeLayout.addView(animationView);25     }26 27     public class AnimationView extends View {28         public AnimationView(Context context) {29             super(context);30             ObjectAnimator objectAnimator = (ObjectAnimator) AnimatorInflater31                     .loadAnimator(MainActivity.this, R.anim.coloranimation);32             objectAnimator.setEvaluator(new ArgbEvaluator());33             objectAnimator.setTarget(this);34             objectAnimator.start();35         }36 37     }38 39 }