Swift隐藏后退按钮

Question

我想隐藏后退按钮并设置标题。

我用下面的代码：

override func viewDidLoad() { 
    super.viewDidLoad() 

    navigationItem.title = "Einstellungen" 
    navigationItem.hidesBackButton = true } 

但没有显示标题和后退按钮仍然存在，但如果我触摸它没有任何反应。有人可以帮我吗？

Answer 1

我发现我自己的解决方案。

如果我设置标题和从我以前的ViewController hidesBackButton一切正常。

override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 

    if let destinationVC = segue.destination as? ViewControllerFirstSettings { 

     destinationVC.navigationItem.hidesBackButton = true 
     destinationVC.navigationItem.title = "Einstellungen" 
    } 
} 

Answer 2

此代码可以帮助：

// MARK: - CUSTOM METHODS 
     func createNavBar() { 

      let leftNavigationButton = UIButton() 
      leftNavigationButton.setImage(UIImage(named: "ic_back.png"), forState: .Normal) 
      leftNavigationButton.frame = CGRectMake(10, 10, 20, 15) 
      leftNavigationButton.addTarget(self, action: "onBackButtonPressed:", forControlEvents: UIControlEvents.TouchUpInside) 
      let customBarItem = UIBarButtonItem(customView: leftNavigationButton) 
      self.navigationItem.leftBarButtonItem = customBarItem; 

      //set TitleAppIcon 
      let GR = UITapGestureRecognizer(target: self, action: Selector("headerLogoTapAction:")) 
      let imageView = UIImageView(frame: CGRect(x: 90, y: 0, width: ((UIScreen.mainScreen().bounds.width)/3), height: 40)) 
      imageView.addGestureRecognizer(GR) 
      imageView.userInteractionEnabled = true 
      navigationItem.titleView = imageView 
     }