三种动画效果

旋转 RotateAnimation

缩放 ScaleAnimation

渐变 AlphaAnimation

 

动画效果集合 

AnimationSet

 

1 // 初始化欢迎页面的动画 2  3 private void initViews(){ 4  5       RelativeLayout rlRoot = (RelativeLayout) findViewById(R.id.rl_root);     6  7       RotateAnimation rotate  = new RotateAnimation(0,360,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f); 8       rotate.setDuration(1000);//动画执行的时间 9       rotate.setFillAfter(true);//动画结束后保持最终状态10 11       ScaleAnimation scale = new ScaleAnimation(0,1,0,1,,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);12       scale.setDuration(1000);13       scale.setFillAfter(true);14 15       AlphaAnimation alpha = new AlphaAnimation(0,1);16       alpha.setDuration(1000);17       alpha.setFillAfter(true);18 19       AnimationSet set = new AnimationSet(false);20       set.addAnimation(rotate);21       set.addAnimation(scale);22       set.addAnimation(alpha);23       24       rlRoot.startAnimation(set);   25         26 }