自定义UIBarButtonItem与BG颜色和文本Swift 3

Question

我的导航栏右侧有两个按钮。

extension UIViewController {

func setNavigationBarItem() {

    let profileButton   = UIBarButtonItem(title: "?", style: .plain, target: self, action: #selector(didTapProfileButton(_:)))
    navigationItem.rightBarButtonItems = [addRightBarButtonWithImage(UIImage(named: "menu")!), profileButton]

    self.slideMenuController()?.removeRightGestures()
    self.slideMenuController()?.addRightGestures()
    }
}

我创建了2个这样的按钮。 但我想要的profileButton是背景颜色，并具有该按钮的圆角半径。 如何添加它使它看起来像：

忽略黑色部分。 UIBarButton将具有黄色背景和角半径。

Answer 1

为此，您只需要一个选项，您需要创建具有您想要的设计的UIButton实例， UIBarButtonItem从该按钮创建UIBarButtonItem实例。

let btnProfile = UIButton(frame: CGRect(x: 0, y: 0, width: 25, height: 25))
btnProfile.setTitle("SY", for: .normal)
btnProfile.backgroundColor = UIColor.yellow
btnProfile.layer.cornerRadius = 4.0
btnProfile.layer.masksToBounds = true

现在从该按钮创建UIBarButtonItem并使用rightBarButtonItems设置它。

navigationItem.rightBarButtonItems = [addRightBarButtonWithImage(UIImage(named: "menu")!), UIBarButtonItem(customView: btnProfile)]

Answer 2

    let profileButton = UIButton()
    profileButton.frame = CGRect(x:0, y:0, width:30, height:30)
    profileButton.setTitle("SY", for: .normal)
    profileButton.setTitle("SY", for: .highlighted)
    profileButton.backgroundColor = UIColor.yellow
    profileButton.layer.cornerRadius = 5.0
    profileButton.addTarget(self, action: #selector(didTapProfileButton(_:)), for: .touchUpInside)

    let rightBarButton = UIBarButtonItem(customView: profileButton)
    self.navigationItem.rightBarButtonItem = rightBarButton