Example view that demonstrates bug with Buttons in Lists in SwiftUI

SwiftUIButtonBugView.swift

import SwiftUI

struct ContentView : View {
    var body: some View {
        return NavigationView {
            VStack {
                List {
                    Section(header: Text("Credentials").font(.body).padding([.top, .bottom])) {
                        HStack {
                            Text("Email:")
                                .frame(width: 100, alignment: .leading)
                            TextField(
                                "email address",
                                text: Binding.constant("")
                            ).clipped()
                        }
                        PasswordField(
                            Binding.constant(""),
                            label: Text("Password:"),
                            placeholder: "********"
                        )
                        PasswordField(
                            Binding.constant(""),
                            label: Text("Confirm Password:"),
                            placeholder: "********"
                        )
                    }
                }.listStyle(GroupedListStyle())
            }.navigationBarTitle(Text("Sign up"))
        }
    }
}

struct PasswordField: View {
    let binding: Binding<String>
    let label: Text
    let placeholder: String

    // @State is used for state that is entirely local to the view
    @State var isPasswordVisible = false

    init(
        _ binding: Binding<String>,
        label: Text,
        placeholder: String
    ) {
        self.binding = binding
        self.label = label
        self.placeholder = placeholder
    }

    var body: some View {
        HStack {
            label.frame(width: 100, alignment: .leading)

            if isPasswordVisible {
                TextField(placeholder, text: binding)
                    .textContentType(.password)
                    .clipped()
            } else {
                SecureField(placeholder, text: binding)
                    .textContentType(.password)
                    .clipped()
            }

            Button(
                action: { self.isPasswordVisible.toggle() },
                label: { Image(systemName: isPasswordVisible ? "eye.slash" : "eye") }
            )
        }.lineLimit(nil)
    }
}
#if DEBUG
struct ContentView_Previews : PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}
#endif