update

lib/src/provider/google_sign.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+
+import 'package:flutter/material.dart';
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:google_sign_in/google_sign_in.dart';
+
+class GoogleSignProvider extends ChangeNotifier {
+  final googleSign = GoogleSignIn();
+
+  GoogleSignInAccount? _user;
+
+  GoogleSignInAccount get user => _user!;
+
+  Future googleLogin() async {
+    final googleUser = await googleSign.signIn();
+    if (googleUser == null) return;
+    _user = googleUser;
+
+    final googleAuth = await googleUser.authentication;
+
+    final credential = GoogleAuthProvider.credential(
+        accessToken: googleAuth.accessToken, idToken: googleAuth.idToken);
+
+    await FirebaseAuth.instance.signInWithCredential(credential);
+
+    notifyListeners();
+  }
+}

lib/src/screens/login.dart

@@ -1,4 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:prosappco/src/provider/google_sign.dart';
+import 'package:provider/provider.dart';
 
 class LoginScreen extends StatefulWidget {
   const LoginScreen({super.key});
@@ -63,6 +66,27 @@ class _LoginScreenState extends State<LoginScreen> {
                   ),
                 ),
                 const Text('Un código sera enviado a este numero de celular'),
+                ElevatedButton(
+                  onPressed: () {
+                    final provider =
+                        Provider.of<GoogleSignProvider>(context, listen: false);
+                    provider.googleLogin();
+                  },
+                  style: ElevatedButton.styleFrom(
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(
+                          15), // Establece el radio de los bordes
+                    ),
+                  ),
+                  child: Row(
+                    mainAxisAlignment: MainAxisAlignment.center,
+                    children: [
+                      FaIcon(FontAwesomeIcons.google), // Icono del botón
+                      SizedBox(width: 5), // Espacio entre el icono y el texto
+                      Text('Entrar con Google'), // Texto del botón
+                    ],
+                  ),
+                ),
                 Padding(
                   padding: const EdgeInsets.symmetric(horizontal: 80.0),
                   child: Container(