SwiftUI-从警报进入新视图

Question

我是SwiftUI的新手。我有以下代码，当用户点击警报上的"继续"时，我想继续到"ContentView2">

struct ContentView: View {
@State var alertIsShown: Bool
var myArray = ["Blue","Red","Pink","Yellow"]
var body: some View {

NavigationView{

List(0..<myArray.count) { i in
Button(action: {
print("Button tapped")
alertIsShown = true

}) {
Text(myArray[i])
}
.alert(isPresented: $alertIsShown) {
Alert(title: Text("You have chosen"), message: Text("Are you sure you want to go to contentview2?"), primaryButton: .destructive(Text("Proceed!")) {
print("Proceeding...")

///Solution?


}, secondaryButton: .cancel())

}
}
}
}

}

struct ContentView2 : View {
var body: some View {
Text("Im the second view")
// This will eventually say "Im the yellow view", based on the selection on CV1
}
}

这可能吗？

Answer 1

这里是一个正在运行的示例代码。但它将始终导航到ContentView2，与您将单击列表中的哪个项目无关。

struct ContentView: View {

@State var alertIsShown = false
@State private var navigate = false

var myArray = ["Blue","Red","Pink","Yellow"]

var body: some View {

NavigationView{
ZStack {
NavigationLink(destination: ContentView2(), isActive: $navigate){
EmptyView()
}
List(0..<myArray.count) { i in
Button(action: {
print("Button tapped")
alertIsShown = true
}) {
Text(myArray[i])
}
.alert(isPresented: $alertIsShown) {
Alert(title: Text("You have chosen"), message: Text("Are you sure you want to go to contentview2?"), primaryButton: .destructive(Text("Proceed!")) {
navigate.toggle()
}, secondaryButton: .cancel())

}
}
}
}
}
}