补间动画

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package com.example.unit5_animation_demo;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;

public class MainActivity extends Activity {

private ImageView img;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    img = (ImageView) findViewById(R.id.imageView1);}public void rotatetest(View v){    //旋转-需要确定中心点    RotateAnimation anim=new RotateAnimation(0, -3600,            Animation.RELATIVE_TO_SELF, 0f,            Animation.RELATIVE_TO_SELF, 0f);    anim.setDuration(2000);    img.startAnimation(anim);}public void scaletest(View v){    //缩放-确定中心点位置    ScaleAnimation anim=new ScaleAnimation(1, 3, 1, 3,             Animation.RELATIVE_TO_SELF, 1f,             Animation.RELATIVE_TO_SELF, 1f);    anim.setDuration(2000);    img.startAnimation(anim);}public void translatetest(View v){    //所有设定的值，都是偏移值    TranslateAnimation anim=new TranslateAnimation(            Animation.RELATIVE_TO_PARENT, 0f,             Animation.RELATIVE_TO_PARENT, -0.51f,             Animation.RELATIVE_TO_SELF, 0,             Animation.RELATIVE_TO_PARENT, -0.51f);    anim.setDuration(5000);    img.startAnimation(anim);}public void alphatest(View v){    //创建透明度变化的动画效果  1：完成不透明  0：完全透明    AlphaAnimation anim=new AlphaAnimation(1, 0);    //设置动画执行时间    anim.setDuration(2000);    //让动画停留在最后状态    anim.setFillAfter(true);    //设置重复的次数    anim.setRepeatCount(1);    //设置重复的模式  REVERSE：反向   restart:重复    anim.setRepeatMode(Animation.REVERSE);    //启动动画    img.startAnimation(anim);}

}

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