Splash闪屏页-三种动画效果

三种动画效果

旋转 RotateAnimation

缩放 ScaleAnimation

渐变 AlphaAnimation

动画效果集合 

AnimationSet

// 初始化欢迎页面的动画

private void initViews(){

      RelativeLayout rlRoot = (RelativeLayout) findViewById(R.id.rl_root);    

      RotateAnimation rotate  = new RotateAnimation(0,360,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
      rotate.setDuration(1000);//动画执行的时间
      rotate.setFillAfter(true);//动画结束后保持最终状态

      ScaleAnimation scale = new ScaleAnimation(0,1,0,1,,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
      scale.setDuration(1000);
      scale.setFillAfter(true);

      AlphaAnimation alpha = new AlphaAnimation(0,1);
      alpha.setDuration(1000);
      alpha.setFillAfter(true);

      AnimationSet set = new AnimationSet(false);
      set.addAnimation(rotate);
      set.addAnimation(scale);
      set.addAnimation(alpha);
      
      rlRoot.startAnimation(set);   
        
}