Ios 按钮类型为'；不可用：使用对象构造'；UIButton（类型：）

在下面的代码中，我们得到错误“buttonWithType”不可用：在“help button”

self.hintButton=UIButton.buttonWithType（.custom）

下面的代码行中使用对象构造“UIButton（type:）”。任何建议。谢谢

    class HUDView: UIView {

      var stopwatch: StopwatchView
      var gamePoints: CounterLabelView


    var hintButton: UIButton!

      //this should never be called
      required init(coder aDecoder:NSCoder) {
        fatalError("use init(frame:")
      }


    override init(frame:CGRect) {
        self.stopwatch = StopwatchView(frame:CGRect(x: ScreenWidth/2-150, y: 0, width: 300, height: 100))
        self.stopwatch.setSeconds(0)

    //the dynamic points label
    self.gamePoints = CounterLabelView(font: FontHUD, frame: CGRect(x: ScreenWidth-200, y: 30, width: 200, height: 70))
    gamePoints.textColor = UIColor(red: 0.38, green: 0.098, blue: 0.035, alpha: 1)
    gamePoints.value = 0

    super.init(frame:frame)

    self.addSubview(gamePoints)

    //"points" label
    let pointsLabel = UILabel(frame: CGRect(x: ScreenWidth-340, y: 30, width: 140, height: 70))
    pointsLabel.backgroundColor = UIColor.clear
    pointsLabel.font = FontHUD
    pointsLabel.text = " Points:"
    self.addSubview(pointsLabel)

    self.addSubview(self.stopwatch)

    self.isUserInteractionEnabled = true

    //load the button image
    let hintButtonImage = UIImage(named: "btn")!

    //the help button
    self.hintButton = UIButton.buttonWithType(.custom)
    hintButton.setTitle("Hint!", for:UIControlState())
    hintButton.titleLabel?.font = FontHUD
    hintButton.setBackgroundImage(hintButtonImage, for: UIControlState())
    hintButton.frame = CGRect(x: 50, y: 30, width: hintButtonImage.size.width, height: hintButtonImage.size.height)
    hintButton.alpha = 0.8
    self.addSubview(hintButton)
  }

  override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
    //1 let touches through and only catch the ones on buttons
    let hitView = super.hitTest(point, with: event)

    //2
    if hitView is UIButton {
      return hitView
    }

    //3
    return nil
  }

}

把这个换成

self.hintButton = UIButton.buttonWithType(.custom)

对此

self.hintButton = UIButton(type: .custom)

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按照编译器的建议编写按钮初始化

“使用对象构造”按钮（类型：）

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编译器会给你一个建议。你试过了吗？我试过了，但得到的是“buttonWithType已明确标记为此处不可用”。不确定该怎么办。请阅读整个错误消息

use object construction'ui按钮（type:）

不要通过编辑和询问完全不同的问题来破坏问题。问一个新问题。是的，你的原始问题与链接问题完全相同。太好了。工作起来很有魅力。是的，使用Swift 3。谢谢。

self.hintButton = UIButton(type: .custom)