Android开发之动画整理

rlRoot = (RelativeLayout) findViewById(R.id.rl_root);
//旋转动画
RotateAnimation animRotate = new RotateAnimation(0, 360,
        Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
animRotate.setDuration(1000);       //动画时间
animRotate.setFillAfter(true);      //保持动画结束状态
//缩放动画
ScaleAnimation animScale = new ScaleAnimation(0,1,0,1,
        Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
animScale.setDuration(1000);
animScale.setFillAfter(true);
//渐变动画
AlphaAnimation animAlpha = new AlphaAnimation(0,1);
animAlpha.setDuration(2000);
animAlpha.setFillAfter(true);
//动画集合
AnimationSet set = new AnimationSet(true);
set.addAnimation(animAlpha);
set.addAnimation(animRotate);
set.addAnimation(animScale);
//启动动画
rlRoot.startAnimation(set);
//设置动画监听
set.setAnimationListener(new Animation.AnimationListener() {
        //需要实现的方法
}