SwiftUI动态采摘形式的崩溃

我是个新手SwiftUI开发，和我有麻烦创造一个看法，即动态提出了不同的采摘根据用户以前的选择在这一观点。 看到的问题，运行以下代码模拟器，改变pickerOneSelection到"三个选择器"，然后再改回"两个选择器"，并尝试改变pickerTwoSelection. 该应用程序会立即崩溃；具体错误，这个玩具的例子是"螺纹1:EXC_BAD_ACCESS(代码=1,address=0x8)". 任何了解，是大多数的欢迎！

作为旁白，我已经看过这些问题：(SwiftUI层次选择器与动态数据崩溃)和(swiftUi：2个采摘在一个屏幕上的应用程序的崩溃"指标的范围")，但是如果可能的话，我想为了避免转换我的串的选择变量(pickerOneSelection,pickerThreeSelection)成整数，其中必须随后将翻译后进入串获得的文本与用户相关联的选择。 如果这是不可能做我想做的没有索引的变量，如果你能帮我理解了为什么，那将是非常有益的。

import SwiftUI

struct ContentView: View {
    @State var pickerOneSelection: String = "Picker Two"
    @State var pickerTwoVisible: Bool = false
    @State var pickerTwoSelection: Int = 3
    @State var pickerThreeSelection: String = "Option 1"
    
    var pickerOneOptions = ["Picker Two", "Picker Three"]
    var pickerThreeOptions = ["Option 1", "Option 2", "Option 3"]
    
    var body: some View {
        NavigationView {
            Form {
                Picker("Picker One selection", selection: $pickerOneSelection) {
                    ForEach(pickerOneOptions, id: \.self) {
                        Text($0)
                    }
                } // End of Picker 1
                
                if pickerOneSelection == "Picker Two" {
                    HStack {
                        Text("Picker Two selection")
                        Spacer()
                        Button(String(pickerTwoSelection)) {
                            self.pickerTwoVisible.toggle()
                        }
                    } // End of HStack
                    
                    if pickerTwoVisible {
                        Picker("Picker Two", selection: $pickerTwoSelection) {
                            ForEach(0..<32, id: \.self) {
                                Text(String($0))
                            }
                        }
                        .pickerStyle(WheelPickerStyle())
                    } // End of pickerTwoVisible
                    
                } else {
                    
                    Picker("Picker Three selection", selection: $pickerThreeSelection) {
                        ForEach(pickerThreeOptions, id: \.self) {
                            Text($0)
                        }
                    } // End of Picker 3
                    
                }
            } // End of Form
        } // End of NavigationView
    } // End of body
} // End of ContentView

多谢你的帮助和专业知识！