android 自带动画

1.  /** 列几个安卓自带的动画效果，你们能够把上面 overridePendingTransition参数改下看看效果 
2.      *  实现淡入淡出的效果 
3.         overridePendingTransition(android.R.anim.fade_in,android.R.anim.fade_out);     
4.         overridePendingTransition(android.R.anim.fade_in,android.R.anim.fade_out); 
5.           
6.         由左向右滑入的效果 
7.         overridePendingTransition(android.R.anim.slide_in_left,android.R.anim.slide_out_right);     
8.         overridePendingTransition(android.R.anim.slide_in_left,android.R.anim.slide_out_right); 
9.      */