swift中关于隐藏导航栏的和侧别往右滑动实现同样的pop效果

override func viewWillAppear(_ animated: Bool) {

super.viewWillAppear(animated)

//注意下面一条语句将系统的手势会屏弊掉,如果没有下面的一条语句拖动边缘是可以返回去的

// navigationController?.setNavigationBarHidden(true, animated: true)

//依然保持手势
navigationController?.interactivePopGestureRecognizer?.delegate = self
navigationController?.interactivePopGestureRecognizer?.isEnabled = true
}

override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
navigationController?.setNavigationBarHidden(false, animated: true)
}