Ios 将选择器从UIViewController传递到UIView

我创建了一个从UIView继承的自定义类BlueView。 我想在用户点击BlueView时调用UIViewController中的一个方法。但是，每当我点击BlueView时，我的程序就会崩溃，出现以下异常：

2019-09-15 23:06:14.960704-0400 DoubleViewApp[2418:70709] -[DoubleViewApp.BlueView handleBlueTapWithSender:]: unrecognized selector sent to instance 0x7f820cd06790

UIView：

import UIKit

class BlueView: UIView {

  override init(frame: CGRect) {
    super.init(frame: frame)
    createSubview()
  }

  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    createSubview()
  }

  func createSubview() {
    print("createSubview from BlueView")
    backgroundColor = .blue

    let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap(sender:)))
    addGestureRecognizer(tap)
  }

  func setTapGesture(action: Selector?) {
    let tap = UITapGestureRecognizer(target: self, action: action)
    addGestureRecognizer(tap)
  }

  @objc func handleTap(sender: UITapGestureRecognizer? = nil) {
    print("NO! DO NOT TAP THE BLUE SQUARE.")

  }

}

视图控制器：

import UIKit

class ViewController: UIViewController {


  override func viewDidLoad() {
    super.viewDidLoad()
    print("Hello World")
    // Do any additional setup after loading the view.
    let bview = BlueView(frame: CGRect(x: 0, y: 0, width: 300, height: 300))
    let rview = RedView(frame: CGRect(x: 0, y: 300, width: 300, height: 300))
    view.addSubview(bview)
    view.addSubview(rview)

    bview.setTapGesture(action: #selector(handleBlueTap(sender:)))
  }


  @objc func handleBlueTap(sender: UITapGestureRecognizer? = nil) {
    print("This is a funny message.")
    //Todo: Present new ViewController
  }
}

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您还必须为选择器设置正确的目标。目前，您正在将目标设置为BlueView实例，但希望它成为视图控制器

类BlueView:UIView{ ... func setTapGesturetarget:有吗？，操作：选择器{ AddGestureRecognitzerUITapGestureRecognitzerTarget:目标，操作：操作 } ... } &然后您可以使用：

bview.setTapGesturetarget:self，action:Selector或HandleBlueTapSender:

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BlueView没有把手蓝色水龙头。对，我想这就是问题所在。我通过在UIViewContainer中创建UITapGestureRecognitizer并使用SetTapPassive将其传递给BlueView解决了这个问题。有没有更标准的方法？让BlueView知道它所包含的UIViewController是更好的方法吗？