android获得屏幕高度和宽度

//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();