Application background       (),  , listview,, new, = AlphaAnimation animation (0, 1),  , //AlphaAnimation,,, the effect of gradient transparency./ / & nbsp; & nbsp; & nbsp; & nbsp; animation = new TranslateAnimation (0, 0, 1, 0); //TranslateAnimation & nbsp; control screen translation of animation effects/ / & nbsp; & nbsp; & nbsp; & nbsp; animation = new RotateAnimation (30,10); & nbsp; & nbsp; //RotateAnimation & nbsp; control angle of the screen animation/ / & nbsp; & nbsp; & nbsp; & nbsp; animation = new ScaleAnimation (5,0,2,0); & nbsp; & nbsp; //ScaleAnimation control size expansion of animation effects