android:编写一个补间动画（旋转，淡出淡入，缩放，移动）

activivty_main.xml

<?xml version="1.0" encoding="utf-8"?>

MainActivity.java

package com.example.yanhsama.ex4_12;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.AnimationSet;import android.view.animation.RotateAnimation;import android.view.animation.ScaleAnimation;import android.view.animation.TranslateAnimation;import android.widget.Button;import android.widget.ImageView;import android.view.View.OnClickListener;public class MainActivity extends AppCompatActivity {    private Button rotateButton = null;    private Button scaleButton = null;    private Button alphaButton = null;    private Button translateButton = null;    private ImageView image = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        rotateButton = (Button)findViewById(R.id.rotateButton);        scaleButton = (Button)findViewById(R.id.scaleButton);        alphaButton = (Button)findViewById(R.id.alphaButton);        translateButton = (Button)findViewById(R.id.translateButton);        image = (ImageView)findViewById(R.id.image);        rotateButton.setOnClickListener(new RotateButtonListener());        scaleButton.setOnClickListener(new ScaleButtonListener());        alphaButton.setOnClickListener(new AlphaButtonListener());        translateButton.setOnClickListener(new TranslateButtonListener());    }    class RotateButtonListener implements OnClickListener{        public void onClick(View v) {            AnimationSet animationSet = new AnimationSet(true);            RotateAnimation rotateAnimation = new RotateAnimation(0, 360,                    Animation.RELATIVE_TO_SELF,  0.5f,                    Animation.RELATIVE_TO_SELF,  0.5f);            rotateAnimation.setDuration(1000);            animationSet.addAnimation(rotateAnimation);            image.startAnimation(animationSet);        }    }    class ScaleButtonListener implements OnClickListener{        public void onClick(View v) {            AnimationSet animationSet = new AnimationSet(true);            ScaleAnimation scaleAnimation = new ScaleAnimation(                    0,   0.1f,  0,  0.1f, Animation.RELATIVE_TO_SELF,                    0.5f,  Animation.RELATIVE_TO_SELF,  0.5f);            scaleAnimation.setDuration(1000);            animationSet.addAnimation(scaleAnimation);            image.startAnimation(animationSet);        }    }    class AlphaButtonListener implements OnClickListener{        public void onClick(View v) {            //创建一个AnimationSet对象，参数为Boolean型，            AnimationSet animationSet = new AnimationSet(true);            //创建一个AlphaAnimation对象，参数从完全不透明度，到完全透明            AlphaAnimation alphaAnimation = new AlphaAnimation(1, 0);            //设置动画执行的时间            alphaAnimation.setDuration(500);            //将alphaAnimation对象添加到AnimationSet当中            animationSet.addAnimation(alphaAnimation);            //使用ImageView的startAnimation方法执行动画            image.startAnimation(animationSet);        }    }    class TranslateButtonListener implements OnClickListener{        public void onClick(View v) {            AnimationSet animationSet = new AnimationSet(true);            TranslateAnimation translateAnimation =                    new TranslateAnimation(                            Animation.RELATIVE_TO_SELF, 0f,                            Animation.RELATIVE_TO_SELF, 0.5f,                            Animation.RELATIVE_TO_SELF, 0f,                            Animation.RELATIVE_TO_SELF, 0.5f);            translateAnimation.setDuration(1000);            animationSet.addAnimation(translateAnimation);            image.startAnimation(animationSet);        }    }}

运行效果显示

android:编写一个补间动画（旋转，淡出淡入，缩放，移动）_第1张图片

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