設置沉浸狀態欄的方法

    private void steepStatusBar() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            // 透明狀態欄
            getWindow().addFlags(
                    WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            // 透明導航欄
            getWindow().addFlags(
                    WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        }
    }