ios - UIImageview 点击不工作

Question

我是 swift 的新手。我正在为 UIIMageview 实现点击事件的功能。我的代码如下。

override func viewDidLoad() {
    super.viewDidLoad()
    initialize()
    let logout = UIImage(named: "logout.png")
    let location = UIImage(named:"location.png")
    let appIcon = UIImage(named: "logo.png")

    imgLogout.image = logout
    imgLocation.image = location
    appicon.image = appIcon
    // Do any additional setup after loading the view, typically from a nib.

    imgLogout.isUserInteractionEnabled = true
      let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(ProductListController.profileImageHasBeenTapped(gesture:)))
    //this is where we add the target, since our method to track the taps is in this class
    //we can just type "self", and then put our method name in quotes for the action parameter


    //finally, this is where we add the gesture recognizer, so it actually functions correctly
    imgLogout.addGestureRecognizer(tapGestureRecognizer)

}


func profileImageHasBeenTapped(gesture: UIGestureRecognizer){
    print("Triggered")

}

我的点击事件没有触发。任何人都可以帮助我。任何将不胜感激。

XCode 版本为 8.3.3

Swift 版本为 3.1

Answer 1

为什么不使用专为这种用途设计的 UIButton？

let logout = UIButton(type: .custom)
logout.setImage(UIImage(named: "logout.png"), forState: .normal)
logout.addTarget(self, action: #selector(self.performLogout), for: .touchUpInside)

@objc
func performLogout() {
  // Do something
}