aggiunto schermate login e register

lib/pages/LoginView.dart

@@ -0,0 +1,45 @@
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:flutter/material.dart';
+import 'package:google_sign_in/google_sign_in.dart';
+
+class LoginView extends StatefulWidget {
+  const LoginView({super.key});
+
+  @override
+  State<LoginView> createState() => _LoginViewState();
+}
+
+class _LoginViewState extends State<LoginView> {
+
+  Future<UserCredential> signInWithGoogle() async {
+    // Trigger the authentication flow
+    final GoogleSignInAccount? googleUser = await GoogleSignIn().signIn();
+
+    // Obtain the auth details from the request
+    final GoogleSignInAuthentication? googleAuth = await googleUser?.authentication;
+
+    // Create a new credential
+    final credential = GoogleAuthProvider.credential(
+      accessToken: googleAuth?.accessToken,
+      idToken: googleAuth?.idToken,
+    );
+
+    // Once signed in, return the UserCredential
+    return await FirebaseAuth.instance.signInWithCredential(credential);
+  }
+
+  @override
+  void initState() {
+    signInWithGoogle().then((value) => print(value));
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return const Scaffold(
+        body: Center(
+            child: Icon(Icons.login)
+        )
+    );
+  }
+}