ExampleView.swift

import SwiftUI
import TextFieldAlert

struct ExampleView: View {
 @StateObject private var viewModel = ExampleViewModel()
 
 var body: some View {
 VStack {
 Spacer()
 Spacer()
 
 Button {
 viewModel.presentSignInAlert()
 } label: {
 Text("Sign in")
 }
 
 Spacer()
 Spacer()
 
 Text("Mail: \(viewModel.mail)")
 Text("Password: \(viewModel.password)")
 
 Spacer()
 }
 .textFieldAlert(
 title: "Sign in",
 message: "Enter the following information.",
 textFields: [
 .init(
 text: $viewModel.mail,
 placeholder: "Email address (cannot be empty)",
 autocapitalizationType: .none,
 keyboardType: .emailAddress
 ),
 .init(
 text: $viewModel.password,
 placeholder: "Password (5 characters or more)",
 isSecureTextEntry: true,
 autocapitalizationType: .none
 )
 ],
 actions: [
 .init(
 title: "Cancel",
 style: .cancel
 ),
 .init(
 title: "OK",
 isEnabled: viewModel.isValid,
 closure: { _ in
 viewModel.signIn()
 }
 )
 ],
 isPresented: $viewModel.isPresented
 )
 }
}

struct ExampleViewPreviews: PreviewProvider {
 static var previews: some View {
 ExampleView()
 }
}