获取屏幕的宽度和高度：

方法一:

        //获取屏幕的宽度

	public static int getScreenWidth(Context context) {

		WindowManager manager = (WindowManager) context

				.getSystemService(Context.WINDOW_SERVICE);

		Display display = manager.getDefaultDisplay();

		return display.getWidth();

	}

	//获取屏幕的高度

	public static int getScreenHeight(Context context) {

		WindowManager manager = (WindowManager) context

				.getSystemService(Context.WINDOW_SERVICE);

		Display display = manager.getDefaultDisplay();

		return display.getHeight();

	}

方法二：

DisplayMetrics  dm = new DisplayMetrics();    

getWindowManager().getDefaultDisplay().getMetrics(dm);    

int screenWidth = dm.widthPixels;              

int screenHeight = dm.heightPixels;