android获取屏幕的高度和宽度用到WindowManager这个类，两种方法： |
1、WindowManager wm = (WindowManager) getContext()
.getSystemService(Context.WINDOW_SERVICE);
int
width = wm.getDefaultDisplay().getWidth();
int
height = wm.getDefaultDisplay().getHeight();
2、WindowManager wm = this.getWindowManager();
int
width = wm.getDefaultDisplay().getWidth();
int
height = wm.getDefaultDisplay().getHeight();
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