[Android]获取设备相关信息

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;
    }