ios - UITapGestureRecognizer : "Unrecognized selector sent to instance"

Question

我知道这个问题过去被问过很多次，但几乎所有答案都已过时( objective-c )或者它们似乎对我不起作用。

当我尝试点击我的 View 时出现以下异常:

2018-02-05 12:18:30.162887+0100 Shay[28239:1248348] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 
'-[UIView tabClicked:]: unrecognized selector sent to instance 0x7f88edd02240'

这是我的实现:

//setting up the basic properties and adding Tap gesture
init(view: UIView,index: Int, tabHandler: TabHandler,  tabType: TabType) {

    ....

    //TapRecognizerAction
    let tap = UITapGestureRecognizer(target: rootView, action: #selector(  tabClicked(_:) ))
    tap.delegate = self as UIGestureRecognizerDelegate
    rootView.addGestureRecognizer(tap)

}

@objc public func tabClicked(_ recognizer: UITapGestureRecognizer){
print("WORKING")

}

非常感谢帮助新手!

Answer 1

tabClicked 应该在 rootView 实现中而不是在 self.view 中

你可以试试

  let tap = UITapGestureRecognizer(target: self , action: #selector(  tabClicked(_:) ))

或

extension UIView
{

 @objc public func tabClicked(_ recognizer: UITapGestureRecognizer){
    print("WORKING")

    }
}