将多个自定义栏按钮添加到自定义导航栏 [英] Adding multiple custom bar buttons to custom nav bar

问题描述

我需要在Swift的自定义导航栏的每一端添加两个小节按钮项。我正在使用以下方法，虽然我没有错误，但没有任何错误出现。我正在使用自己的自定义图标，当我使用界面构建器添加它们时会出现这些图标。显然，我只能在每一端添加一个。

I need to add two bar button items to each end of my custom navigation bar in Swift. I'm using the following method, and although I get no errors, nothing at all is appearing. I'm using my own custom icons, which do appear when I add them using interface builder. Obviously, I can only add one to each end that way.

@IBOutlet weak var navBar: UINavigationBar!

    override func viewDidLoad() {

            var iconOne = UIImage(named: "iconOne")
            var iconTwo = UIImage(named: "iconTwo")

            var buttonOne:UIBarButtonItem = UIBarButtonItem(image: iconOne, style: UIBarButtonItemStyle.Plain, target: self, action: nil)
            var buttonTwo:UIBarButtonItem = UIBarButtonItem(image: iconTwo, style: UIBarButtonItemStyle.Plain, target: self, action: nil)

            self.navBar.setItems([buttonOne,buttonTwo], animated: true)

    }

这是在嵌入导航控制器的视图控制器中实现的。我可以使用 self.navigationItem.setRightBarButtonItems（[buttonOne，buttonTwo]，animated：true）如果我没有使用自定义导航栏。什么是解决方法？

This is implemented in a view controller that's embedded in a navigation controller. I'd be able to use self.navigationItem.setRightBarButtonItems([buttonOne, buttonTwo], animated: true) if I weren't using a custom nav bar. What's the workaround?

推荐答案

此代码适用于我：

@IBOutlet weak var navBar: UINavigationBar!
@IBOutlet weak var navBarItem: UINavigationItem!

func displayTextInNavBar(text: String) {

    let labelWidth: CGFloat = navBar.frame.width / 6
    let frame = CGRect(x: 0, y: 0, width: labelWidth, height: navBar.frame.height)
    let label = UILabel(frame: frame)

    label.textAlignment = .Right
    label.textColor = UIColor(red: 0/255, green: 127/255, blue: 0/255, alpha: 1)
    label.font = UIFont(name: "Bradley Hand", size: 20)
    label.text = text

    let navBarButtonItem = UIBarButtonItem(customView: label)
    navBarItem.rightBarButtonItem = navBarButtonItem
}

上面的标签位于navBar的右侧。如果你想要一个可点击的实际按钮，请改为：

The above puts a label on the right side of the navBar. If you want an actual button that is clickable, do this instead:

let navBarButtonItem = UIBarButtonItem(title: text, style: .Plain, target: self, action: nil)

如果你希望该按钮在点击时实际执行某些操作，然后代替 nil 指定一些功能。

If you want that button to actually do something when clicked, then instead of nil specify some function.

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