Statusbar和NavigationBar高度的获取

获取StatusBar的高度：

    public static int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result;
    }

获取NavigationBar的高度：

    public static boolean isNavigationBarShow(Activity activity){
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            Display display = activity.getWindowManager().getDefaultDisplay();
            Point size = new Point();
            Point realSize = new Point();
            display.getSize(size);
            display.getRealSize(realSize);
            return realSize.y!=size.y;//realsize(0,0) size(1080,1794)
        }else {
            boolean menu = ViewConfiguration.get(activity).hasPermanentMenuKey();
            boolean back = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);
            if(menu || back) {
                return false;
            }else {
                return true;
            }
        }
    }
    public static int getNavigationBarHeight(Activity activity) {
        if (!isNavigationBarShow(activity)){
            return 0;
        }
        Resources resources = activity.getResources();
        int resourceId = resources.getIdentifier("navigation_bar_height",
                "dimen", "android");
        //获取NavigationBar的高度
        int height = resources.getDimensionPixelSize(resourceId);
        return height;
    }