public static int screenWidth(Activity activity)

    {

        DisplayMetrics dm = new DisplayMetrics();

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

        return dm.widthPixels;

    }

    public static int screenHeight(Activity activity)

    {

        DisplayMetrics dm = new DisplayMetrics();

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

        return dm.heightPixels;

    }