Android 设置全屏 获得屏幕大小 显示Log

//设置全屏
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
//获取屏幕大小
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
WIDTH_SCREEN = dm.widthPixels;
HEIGHT_SCREEN = dm.heightPixels;

//打印屏幕大小
Log.i("Screen", "Width = " + WIDTH_SCREEN);
Log.i("Screen", "Height = " + HEIGHT_SCREEN);