启用了用户交互的IOS 11导航项无法正常工作

navigationView.isUserInteractionEnabled = true

maintitleClicked = UITapGestureRecognizer(target: self,action: #SELEctor(maintitleTapped))

self.navigationView.addGestureRecognizer(maintitleClicked)

解决方法

if #available(iOS 11.0,*) {
        self.navigationController?.navigationBar.prefersLargetitles = false
        self.navigationItem.largetitleDisplaymode = .automatic
        var width = navigationView.sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude,height: CGFloat.greatestFiniteMagnitudE)).width - 15.0
        let height = navigationView.sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude,height: CGFloat.greatestFiniteMagnitudE)).height

        let screenSize: CGRect = UIScreen.main.bounds
        let windowWidth = screenSize.width
        width = windowWidth * 0.55

        let widthConsTraint = navigationView.widthAnchor.consTraint(equalToConstant: width)
        let heightConsTraint = navigationView.heightAnchor.consTraint(equalToConstant: height)

        heightConsTraint.isActive = true
        widthConsTraint.isActive = true
    }

使高度和宽度约束激活是另一个问题给出的答案我目前没有链接到它将在编辑中发布链接(目前我无法找到该问题)