ImageView image;
//获取屏幕宽度
WindowManager wm = (WindowManager)getSystemService(Context.WINDOW_SERVICE); int width = wm.getDefaultDisplay().getWidth();
//获取屏幕高度
int height = wm.getDefaultDisplay().getHeight();
ViewGroup.LayoutParams para;para = image.getLayoutParams();
para.height = width*5/6;para.width = width*3/4;
//动态设置宽高
image.setLayoutParams(para);