Question

我正在使用此MRProgress库。它需要UINavigationController作为参数。但是，在我的ViewController（以模态形式呈现）中，我自己创建了UINavigationBar。

    // Create the navigation bar
    navigationBar = UINavigationBar(frame: CGRectMake(0, 0, self.view.frame.size.width, 44 + statusBarHeight()))
    navigationBar.backgroundColor = UIColor.whiteColor()
    navigationBar.delegate = self;

    // Create a navigation item with a title
    let navigationItem = UINavigationItem()
    navigationItem.title = "New Conversation"
    navigationBar.titleTextAttributes = [
        NSForegroundColorAttributeName: COLORS.logo0,
        NSFontAttributeName: FONTS.title
    ]

    //Back Button
    let backButton = UIButton(type: .Custom)
    backButton.addTarget(self, action: #selector(CreateSessionViewController.backButtonAction(_:)), forControlEvents: UIControlEvents.TouchUpInside)
    backButton.frame = CGRectMake(0, 0, 20, 20)
    let cross = UIImage(named: "cross.png")
    backButton.tintColor = UIColor(hex: 0xcccccc)
    backButton.setImage(cross?.imageWithRenderingMode(.AlwaysTemplate), forState: UIControlState.Normal)
    backButtonBar = UIBarButtonItem(customView: backButton)
    navigationItem.leftBarButtonItems =  [backButtonBar]

    //Add nav bar
    navigationBar.items = [navigationItem]
    self.view.addSubview(navigationBar)

如何将此导航栏作为参数传递给库？这就是图书馆支持的内容：

MRNavigationBarProgressView(forNavigationController: UINavigationController!)

Answer 1

如果有意义，您可以以模态方式呈现包裹此UINavigationController的{{1}}。

如何将UINavigationBar转换为UINavigationController（与此库一起使用）？

1 个答案: