android卡通案例，淡入淡出效果

源代码下载

1、android动画测试程序，界面如图：

颜色随机变化，点击视图，左淡出，右淡入，下淡出，上淡入效果。

主要源代码解析：

package com.example.objectanimatortest;import java.util.Random;import android.os.Build;import android.os.Bundle;import android.animation.Animator;import android.animation.AnimatorListenerAdapter;import android.animation.AnimatorSet;import android.animation.ArgbEvaluator;import android.animation.IntEvaluator;import android.animation.ObjectAnimator;import android.animation.ValueAnimator;import android.annotation.TargetApi;import android.app.Activity;import android.graphics.Color;import android.view.Menu;import android.view.TextureView;import android.view.View;import android.view.animation.AccelerateInterpolator;import android.view.animation.DecelerateInterpolator;import android.widget.TextView;@TargetApi(Build.VERSION_CODES.HONEYCOMB)public class MainActivity extends Activity implements View.OnClickListener{	private TextView[] tv;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.objectanimatortest);		tv = new TextView[]{			(TextView) findViewById(R.id.tv01),			(TextView) findViewById(R.id.tv02),			(TextView) findViewById(R.id.tv03),			(TextView) findViewById(R.id.tv04),						(TextView) findViewById(R.id.tv11),			(TextView) findViewById(R.id.tv12),			(TextView) findViewById(R.id.tv13),			(TextView) findViewById(R.id.tv14)		};		initTextViews();	}	private void initTextViews(){		for(TextView textView :tv){//颜色随机变化代码    使用ValueAnimator类给每个视图加上北京颜色随时间变化的动画			int color1 = Color.rgb((new Random()).nextInt(255), (new Random()).nextInt(255), (new Random()).nextInt(255)) ;			int color2 = Color.rgb((new Random()).nextInt(255), (new Random()).nextInt(255), (new Random()).nextInt(255)) ;			ValueAnimator animator = ObjectAnimator.ofInt(textView, "backgroundColor", color1,color2);			animator.setDuration(3000);			animator.setEvaluator(new ArgbEvaluator());//设置数值计算器，保证动画变化过程中的数值正确			animator.setRepeatCount(ValueAnimator.INFINITE);			animator.setRepeatMode(ValueAnimator.REVERSE);			animator.start();						textView.setOnClickListener(this);		}	}	@Override	public boolean onCreateOptionsMenu(Menu menu) {		//getMenuInflater().inflate(R.menu.activity_main, menu);		return true;	}	@Override	public void onClick(final View view) {		final ValueAnimator animator1 = ObjectAnimator.ofFloat(view, "alpha",1,0);//淡出效果		animator1.setDuration(1000);		animator1.setInterpolator(new AccelerateInterpolator());		ValueAnimator animator2 = ObjectAnimator.ofFloat(view,"x",view.getX(),(view.getX()-view.getWidth()));//向左移动效果		animator2.setDuration(1000);		animator2.setInterpolator(new DecelerateInterpolator());				AnimatorSet animatorSet = new AnimatorSet();//合起来就是左淡出效果		animatorSet.play(animator2).before(animator1);//		animatorSet.start();				final ValueAnimator animator3 = ObjectAnimator.ofFloat(view, "alpha",0,1);//淡入效果		animator3.setDuration(1000);		animator3.setInterpolator(new AccelerateInterpolator());		ValueAnimator animator4 = ObjectAnimator.ofFloat(view,"x",view.getX()+2*view.getWidth(),view.getX());//从右边向左移动		animator4.setDuration(1000);		animator4.setInterpolator(new DecelerateInterpolator());				animator4.addListener(new AnimatorListenerAdapter() {//当动画播放完，我们做什么			@Override			public void onAnimationEnd(Animator animation) {//向下移动淡出，然后向上移动淡入				super.onAnimationEnd(animation);				final ValueAnimator animatorY = ObjectAnimator.ofFloat(view, "y", view.getY(),view.getY()+view.getHeight());				animatorY.setDuration(1000);				final ValueAnimator alphaY = animator1.clone();								ValueAnimator rotate = ObjectAnimator.ofFloat(view,"rotationY",0,90);				rotate.setDuration(2000);//				rotate.start();								animatorY.addListener(new AnimatorListenerAdapter() {										@Override					public void onAnimationEnd(Animator animation) {						super.onAnimationEnd(animation);						animatorY.reverse();						animator3.clone().start();					}									});				AnimatorSet set = new AnimatorSet();				set.play(animatorY).with(alphaY);				set.start();			}					});		//		animatorSet.play(animator3).after(animator1);//合起来就是左淡出，右淡入效果//		animatorSet.play(animator3).with(animator4);//		animatorSet.start();				AnimatorSet animatorSet1 = new AnimatorSet();		animatorSet1.play(animator3).with(animator4);				AnimatorSet animatorSet2 = new AnimatorSet();		animatorSet2.play(animator2).with(animator1);				AnimatorSet set = new AnimatorSet();		set.playSequentially(animatorSet2,animatorSet1);//使用playSequentially方法测试效果		set.start();	}}