将IBAction连接到自定义类

Question

I wrote a custom class called PressableView . It recognizes taps and then calls a protocol function on its delegate object. Since it is a subclass of UIView , it does not allow the connection of IBAction s by default.
I was wondering whether it is possible to connect a function inside the view controller, the pressable view is in, to the object, so it calls that method on tap – just like you would with a UIButton .

I already tried things like:

class PressableView: UIView {
    // ...
    @IBOutlet var action: (() -> Void)?
    // ...
}

...but, Xcode doesn't allow that type to be an IBOutlet .

Any ideas?

Answer 1

change PressableView parent class as UIControl class then you can connect for actions and handle it.

UIControl is subclass of UIView class only. so you will have all the properties of UIView as well.

class PressableView: UIControl {
     @IBAction func uicontrolEventAction(_ sender: Any) {
    }
}