<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
      xmlns:tools="http://schemas.android.com/tools" 
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical"
      tools:context=".MainActivity">
  <ImageView
    android:id="@+id/coin_iv"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:src="@mipmap/coin"/>
  <ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:layout_marginBottom="70dp"
    android:layout_marginLeft="70dp"
    android:src="@mipmap/version"/>
  <ImageView
    android:id="@+id/wallet_iv"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:src="@mipmap/wallet"/>
  <Button
    android:id="@+id/start_btn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center|bottom"
    android:layout_marginBottom="10dp"
    android:text="start"/>
</FrameLayout>

<?xml version="1.0" encoding="utf-8"?>
<translate
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:fromYDelta="-50%p"
  android:interpolator="@android:anim/accelerate_interpolator"
  android:toYDelta="0%"/>

public class ThreeDRotateAnimation extends Animation { 
 int centerX, centerY; 
 Camera camera = new Camera(); 
  @Override
  public void initialize(int width, int height, int parentWidth, int parentHeight) {  
  super.initialize(width, height, parentWidth, parentHeight);  
  // 中心点坐标
  centerX = width / 2;  
  centerY = height / 2; 
  setDuration(500);  
  setInterpolator(new LinearInterpolator()); 
 }  
@Override  
protected void applyTransformation(float interpolatedTime, Transformation t) {  
  final Matrix matrix = t.getMatrix();
  camera.save(); 
  // 绕y轴旋转
  camera.rotateY(360 * interpolatedTime);  
  camera.getMatrix(matrix);  
  // 设置翻转中心点 
  matrix.preTranslate(-centerX, -centerY); 
  matrix.postTranslate(centerX, centerY);   
  camera.restore();  
 }
}

private void startCoin() {
// 掉落
Animation animationTranslate = AnimationUtils.loadAnimation(this,R.anim.anim_top_in);

// 旋转
ThreeDRotateAnimation animation3D = new ThreeDRotateAnimation();
animation3D.setRepeatCount(10);

AnimationSet animationSet = new AnimationSet(true);
animationSet.setDuration(800);
animationSet.addAnimation(animation3D);
animationSet.addAnimation(animationTranslate);
mCoinIv.startAnimation(animationSet);
｝

private void setWallet() {
final ValueAnimator valueAnimator = ValueAnimator.ofFloat(0, 1);
valueAnimator.setDuration(800);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 
  @Override  public void onAnimationUpdate(ValueAnimator animation) {
    float fraction = animation.getAnimatedFraction();
    // 大概掉落到钱包的上边缘位置的时候，取消ValueAnimator动画，并执行钱包反弹效果
    if (fraction >= 0.75) {
      valueAnimator.cancel();
      startWallet();
    } 
  }});
valueAnimator.start();
｝

private void startWallet() {
  // x轴缩放
  ObjectAnimator objectAnimator1 = ObjectAnimator.ofFloat(mLogoIv, "scaleX", 1, 1.1f, 0.9f, 1);
  objectAnimator1.setDuration(600);
  // y轴缩放 
  ObjectAnimator objectAnimator2 = ObjectAnimator.ofFloat(mLogoIv, "scaleY", 1, 0.75f, 1.25f, 1);
  objectAnimator2.setDuration(600);

  AnimatorSet animatorSet = new AnimatorSet();
  animatorSet.setInterpolator(new LinearInterpolator()); 
  // 同时执行x，y轴缩放动画 
  animatorSet.playTogether(objectAnimator1, objectAnimator2);
  animatorSet.start();}