android动画基础：tween动画
工程结构图：
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四个动画的xml文件：
MainActivity:package com.zzl.animation;import android.app.Activity;import android.os.Bundle;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.view.animation.RotateAnimation;import android.widget.ImageView;public class MainActivity extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);// 1，透明动画效果Animation animation1 = AnimationUtils.loadAnimation(MainActivity.this,R.anim.alpha);// 2，移动动画效果Animation animation2 = AnimationUtils.loadAnimation(MainActivity.this,R.anim.translate);// 3，缩放动画效果Animation animation3 = AnimationUtils.loadAnimation(MainActivity.this,R.anim.scale);// 4，旋转动画效果Animation animation4 = AnimationUtils.loadAnimation(MainActivity.this,R.anim.rotate);// 如果设为 true,表示设置动画完成后保持动画后的状态animation1.setFillAfter(true);// animation2.setFillAfter(true);/** * 用代码添加一个旋转动画 */Animation animation = new RotateAnimation(0, 360,Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,0.5f);animation.setDuration(10000);ImageView iv = (ImageView) findViewById(R.id.iv);iv.setAnimation(animation);}}
