easy_google_sign_in 0.1.0

easy_google_sign_in: ^0.1.0 copied to clipboard

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_auth/firebase_auth.dart';

import 'package:easy_google_sign_in/easy_google_sign_in.dart';
// If you used FlutterFire CLI, import your generated firebase_options.dart
// import 'firebase_options.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  // If you have DefaultFirebaseOptions, use:
  // await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
  await Firebase.initializeApp();

  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Easy Google Sign-In Demo',
      theme: ThemeData(colorSchemeSeed: Colors.indigo, useMaterial3: true),
      home: const DemoPage(),
      debugShowCheckedModeBanner: false,
    );
  }
}

class DemoPage extends StatefulWidget {
  const DemoPage({super.key});

  @override
  State<DemoPage> createState() => _DemoPageState();
}

class _DemoPageState extends State<DemoPage> {
  User? _user;

  @override
  void initState() {
    super.initState();
    _user = currentFirebaseUser;
    FirebaseAuth.instance.userChanges().listen((u) {
      setState(() => _user = u);
    });
  }

  @override
  Widget build(BuildContext context) {
    final signedIn = isFirebaseSignedIn;
    return Scaffold(
      appBar: AppBar(title: const Text('Easy Google Sign-In Example')),
      body: Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            if (signedIn) ...[
              CircleAvatar(
                radius: 32,
                backgroundImage: _user?.photoURL != null
                    ? NetworkImage(_user!.photoURL!)
                    : null,
                child:
                    _user?.photoURL == null ? const Icon(Icons.person) : null,
              ),
              const SizedBox(height: 12),
              Text(_user?.displayName ?? _user?.email ?? 'Signed in'),
              const SizedBox(height: 20),
              ElevatedButton(
                onPressed: () async => signOutFromGoogle(),
                child: const Text('Sign out'),
              ),
            ] else ...[
              // Option A: one-liner onPressed
              ElevatedButton(
                onPressed: easyGoogleSignInOnPressed(
                  onSuccess: (cred) =>
                      debugPrint('Logged in: ${cred.user?.uid}'),
                ),
                child: const Text('Sign in with Google'),
              ),

              const SizedBox(height: 12),

              // Option B: ready-made widget
              EasyGoogleSignInButton(
                onSuccess: (cred) => ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: Text('Welcome ${cred.user?.displayName}!')),
                ),
              ),
            ],
          ],
        ),
      ),
    );
  }
}