Ios 如何在导航栏右侧添加自定义视图？

我正在尝试在UINavigationBar右侧添加一个自定义视图。我尝试了以下内容，但是没有显示视图！请帮忙，提前谢谢

let viewOnrightButton = UIView(frame: CGRect(x: 2, y: 2, width: 60, height: 22))
 // viewOnrightButton.frame = CGRectMake(2, 2, 60, 22)
viewOnrightButton.layer.cornerRadius = 2
viewOnrightButton.backgroundColor = UIColor(red: 0.961, green: 0.827, blue: 0.239, alpha: 1.00)

lblNumbersOfBanana.frame = CGRectMake(2, 1, viewOnrightButton.frame.width-20, 20)
lblNumbersOfBanana.text = "001"

var bananaImgView = UIImageView(frame: CGRect(x: viewOnrightButton.frame.width-22, y: 0, width: 20, height: 20))
 //  bananaImgView.frame = CGRectMake(viewOnrightButton.frame.width-22, 0, 20, 20)
bananaImgView.image = UIImage(named: "banana")

viewOnrightButton.addSubview(lblNumbersOfBanana)
viewOnrightButton.addSubview(bananaImgView)

self.navigationItem.rightBarButtonItem?.customView = viewOnrightButton

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我猜你的正统信仰是零。而是使用自定义视图初始化一个新的uiBarButtonim，并将其设置为RightBarButtonim。试试看

你可以这样做，试试看：

var view = UIView(frame: CGRectMake(0, 0, 100, 44))
view.backgroundColor = UIColor.yellowColor()
var barButtonItem = UIBarButtonItem(customView: view)
self.navigationItem.rightBarButtonItem = barButtonItem

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这是按钮的一个示例：

// Right Side
let rubricButton  = UIButton.buttonWithType(UIButtonType.System) as! UIButton
rubricButton.frame = CGRectMake(0, 0, 100, 32)  // Size
rubricButton.backgroundColor = UIColor.clearColor()
rubricButton.setTitle("Options", forState: UIControlState.Normal)
rubricButton.titleLabel!.font = UIFont(name: "Lato-Regular", size: 18)
rubricButton.addTarget(self, action: "showRubricList:", forControlEvents: UIControlEvents.TouchUpInside)  // Action
var rubricBarButtonItem: UIBarButtonItem = UIBarButtonItem(customView: rubricButton)  // Create the bar button

// Add the component to the navigation Bar
self.navigationItem.setRightBarButtonItems([rubricBarButtonItem], animated: false)

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//创建uiview并添加三个自定义按钮

 func addRightButton(){

    let viewFN = UIView(frame: CGRectMake(0, 0, 180,40))
        viewFN.backgroundColor = UIColor.yellowColor()
    let button1 = UIButton(frame: CGRectMake(0,8, 40, 20))
    button1.setImage(UIImage(named: "notification"), forState: UIControlState.Normal)
    button1.setTitle("one", forState: .Normal)

    button1.addTarget(self, action: #selector(self.didTapOnRightButton), forControlEvents: UIControlEvents.TouchUpInside)

    let button2 = UIButton(frame: CGRectMake(40, 8, 60, 20))
    button2.setImage(UIImage(named: "notification"), forState: UIControlState.Normal)
    button2.setTitle("tow", forState: .Normal)
    let button3 = UIButton(frame: CGRectMake(80, 8, 60, 20))
     button3.setImage(UIImage(named: "notification"), forState: UIControlState.Normal)
    button3.setTitle("three", forState: .Normal)

    button3.addTarget(self, action: #selector(self.didTapOnRightButton), forControlEvents: UIControlEvents.TouchUpInside)

    viewFN.addSubview(button1)
    viewFN.addSubview(button2)
    viewFN.addSubview(button3)


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

}

接受答案的Swift 3/4/5版本

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希望它能帮助别人。干杯

我在viewwillappease（）中添加了这段代码，并为我工作

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    self.navigationController?.navigationBar.isHidden = false
    self.navigationItem.title = "Forgot Password?"
    self.navigationItem.leftBarButtonItem = UIBarButtonItem(customView:UIImageView(image: UIImage(named: "btn_back")))
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    self.navigationController?.navigationBar.isHidden = false
    self.navigationItem.title = "Forgot Password?"
    self.navigationItem.leftBarButtonItem = UIBarButtonItem(customView:UIImageView(image: UIImage(named: "btn_back")))
}