如何在用户点击SwiftUI中的列表行时显示警报

当用户在SwiftUI中点击列表中的行时，显示包含来自行的数据的警报的最佳方法是什么？

我在用这个代码。

import SwiftUI

struct ContentView: View {

    var testData = ["One","Two","Three"]

    var body: some View {

        List{
            ForEach(testData, id: \.self) { item in
                Text(item).onTapGesture {

                    if item == "One" {

                        print("One selected")

                        print("NEED TO SHOW THE ALERT HERE")

                    }

                }
            }

        }

    }

}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

我试着用这种方式解决这个问题：

import SwiftUI

struct ContentView: View {

    @State private var showingAlert = false

    var testData = ["One","Two","Three"]

    var body: some View {

        List{
            ForEach(testData, id: \.self) { item in

                Button(action: {
                    self.showingAlert = true

                }) {
                    Text("\(item)")

                }
                .alert(isPresented: self.$showingAlert) {
                    Alert(title: Text("Text"), message: Text(item), dismissButton: .default(Text("Ok")))

                }

            }

        }

    }

}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

但是这个解决方案会引起这样的警告：

Attempt to present <UIAlertController:>  which is already presenting <UIAlertController:>

寻找更好的解决方案或避免此警告的解决方案。