Is delegate pattern a good approach in SwiftUI?

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I am converting an iOS app from UIKit to SwiftUI. I have a UIViewController that displays a view with different buttons. This UIViewController has a delegate that conforms to a specific protocol. On each button's action, I call a method of its delegate. Nothing special here, it is a typical Delegate pattern as we all know for iOS development with UIKit.

My question is: Is it still a good approach with SwiftUI? I can totally convert this pattern in my SwiftUI app (I did already. EDIT: and as mentioned in comments, it is NOT a good idea!). But I'm wondering if this Delegate pattern is still a good way or if there is a different way to do that (with Binding maybe?). Is it recommended to use this pattern in a SwiftUI app?

Here is a simplified code example:

protocol MyCustomViewDelegate {
    func buttonATapped()
}

struct MyCustomView: View {
    public var delegate: MyCustomViewDelegate?
    var body: some View {
        Button("Button A") {
            if let delegate = delegate {
                delegate.buttonATapped()
            }
        }
    }
}

struct ContentView: View, MyCustomViewDelegate {

    var body: some View {
        MyCustomView(delegate: self)
    }

    func buttonATapped() {
        // Do something
    }
}

EDIT: Please do not use this previous implementation!

swiftui swift delegates ios
1 Answers

I think that if you use closures it is better, an example to pass the function:

 struct MyCustomView: View {
        var function: () -> Void
        var body: some View {
            Button(action: {
                self.function()
            }, label: {
                Text("Button")
            })
        }
    }
    
    struct ContentView: View {
        var body: some View {
            ChildView(function: self.buttonATapped)
        }
        
        func buttonATapped() {
            print("I am the parent")
        }
    }
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