I want to add buttons in swiftUI alert at run time - swiftui

Question

I want to add buttons in swiftUI alert at run time. Below code is not working.
struct ContentView: View {
#State private var presentAlert = false
#State private var username: String = ""
var body: some View {
Button("Show Alert") {
presentAlert = true
}
.alert("Login", isPresented: $presentAlert, actions: {
TextField("Username", text: $username)
Button("Cancel", role: .cancel, action: {})
if $username.wrappedValue.count>0 {
Button("Login", action: {})
}
}, message: {
Text("Please enter your username and password.")
})
}
}

Answer 1

You cannot have views inside actions.
For maximum control over the content and behaviour of the alert popup, I recommend just creating your own
Taken from my answer here
struct ContentView: View {
#State private var presentAlert = false
var body: some View {
ZStack {
VStack {
// your main view
}
.blur(radius: presentAlert ? 15 : 0)
if presentAlert {
AlertView()
}
}
}
}
struct AlertView: View {
var body: some View {
ZStack {
RoundedRectangle(cornerRadius: 6)
.foregroundColor(.blue)
VStack {
TextField("Username", text: $username)
Button("Cancel", role: .cancel, action: {})
// ... etc
}
}
}
}