SwiftUI Firebase Login Register - Firebase Auth

SwiftUI Firebase Login Register - Firebase Auth

https://console.firebase.google.com/

ContentView.swift

 
//
//  ContentView.swift
//  DevSwiftUI
//
//  Created by Cairocoders
//

import SwiftUI
import Firebase

struct ContentView: View {

    @State var isLoginMode = false
    @State var email = ""
    @State var password = ""

    var body: some View {
        NavigationView {
            ScrollView {

                VStack(spacing: 16) {
                    Picker(selection: $isLoginMode, label: Text("Picker here")) {
                        Text("Login")
                            .tag(true)
                        Text("Create Account")
                            .tag(false)
                    }.pickerStyle(SegmentedPickerStyle())

                    if !isLoginMode {
                        Button {

                        } label: {
                            Image(systemName: "person.fill")
                                .font(.system(size: 64))
                                .padding()
                        }
                    }

                    Group {
                        TextField("Email", text: $email)
                            .keyboardType(.emailAddress)
                            .autocapitalization(.none)
                        SecureField("Password", text: $password)
                    }
                    .padding(12)
                    .background(Color.white)
                    .cornerRadius(10)
                    
                    Button {
                        handleAction()
                    } label: {
                        HStack {
                            Spacer()
                            Text(isLoginMode ? "Log In" : "Create Account")
                                .foregroundColor(.white)
                                .padding(.vertical, 10)
                                .font(.system(size: 14, weight: .semibold))
                            Spacer()
                        }.background(Color.blue)

                    }.cornerRadius(10)
                    
                    Text(self.loginStatusMessage)
                        
                }
                .padding()

            }
            .navigationTitle(isLoginMode ? "Log In" : "Create Account")
            .background(
                        LinearGradient(gradient: Gradient(colors: [.yellow, .green]), startPoint: .top, endPoint: .bottom)
                            .edgesIgnoringSafeArea(.all))
        }
    }
    private func handleAction() {
        if isLoginMode {
            loginUser()
        } else {
            createNewAccount()
        }
    }

    private func loginUser() {
        Auth.auth().signIn(withEmail: email, password: password) { result, err in
            if let err = err {
                print("Failed to login user:", err)
                self.loginStatusMessage = "Failed to login user: \(err)"
                return
            }

            print("Successfully logged in as user: \(result?.user.uid ?? "")")

            self.loginStatusMessage = "Successfully logged in as user: \(result?.user.uid ?? "")"
        }
    }

    @State var loginStatusMessage = ""

    private func createNewAccount() {
        Auth.auth().createUser(withEmail: email, password: password) { result, err in
            if let err = err {
                print("Failed to create user:", err)
                self.loginStatusMessage = "Failed to create user: \(err)"
                return
            }

            print("Successfully created user: \(result?.user.uid ?? "")")

            self.loginStatusMessage = "Successfully created user: \(result?.user.uid ?? "")"
        }
    }
    
}

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

DevSwiftUIApp.swift

 
//
//  DevSwiftUIApp.swift
//  DevSwiftUI
//
//  Created by Cairocoders
//

import SwiftUI
import Firebase

@main
struct DevSwiftUIApp: App {
       
    @UIApplicationDelegateAdaptor(AppDelegate.self) var delegate
      
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}
  
class AppDelegate: NSObject,UIApplicationDelegate{
        
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
            
        FirebaseApp.configure()
        return true
    }
}