added google login signInHEADmain

7 files changed, 189 insertions, 82 deletions

diff --git a/lib/firebase/auth.dart b/lib/firebase/auth.dart
new file mode 100644
index 0000000..a48243e
--- /dev/null
+++ b/lib/firebase/auth.dart
@@ -0,0 +1,37 @@
+import 'package:cloud_firestore/cloud_firestore.dart';

+import 'package:firebase_auth/firebase_auth.dart';

+import 'package:google_sign_in/google_sign_in.dart';

+

+class AuthMethords{

+  final FirebaseAuth _auth = FirebaseAuth.instance;

+  final FirebaseFirestore _firestore = FirebaseFirestore.instance;

+

+  Future <bool> signInWIthGoogle() async {

+    bool result = false ;

+    try{

+      final GoogleSignInAccount ? googleUser = await GoogleSignIn().signIn();

+      final GoogleSignInAuthentication ? googleAuth = await googleUser?.authentication;

+      final credential = GoogleAuthProvider.credential(accessToken: googleAuth?.accessToken,idToken: googleAuth?.idToken); 

+

+      UserCredential userCredential = await _auth.signInWithCredential(credential);

+      User? user = userCredential.user;

+

+      if(user != null){

+        if(userCredential.additionalUserInfo!.isNewUser){

+         //adding data to firebase

+         await _firestore.collection("users").doc(user.uid).set({

+          "username" : user.displayName,

+          "uid" : user.uid,

+          "profilePhoto" : user.photoURL,

+          "email" : user.email,

+         });

+        }

+        result = true;

+      }

+      return result;

+    } catch (e) {

+      print(e);

+    }

+    return result;

+  }

+}
\ No newline at end of file
diff --git a/lib/firebase/firestore.dart b/lib/firebase/firestore.dart
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/lib/firebase/firestore.dart
diff --git a/lib/main.dart b/lib/main.dart
index c613188..85019cc 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,7 +1,10 @@
+import 'package:firebase_core/firebase_core.dart';

 import 'package:flutter/material.dart';

+import 'package:project_residue/screens/login_screen.dart';

 

-void main() {

+void main() async {

   WidgetsFlutterBinding.ensureInitialized();

+  await Firebase.initializeApp();

   runApp(const MyApp());

 }

 

@@ -14,16 +17,7 @@ class MyApp extends StatelessWidget {
     return MaterialApp(

       title: 'Flutter Demo',

       theme: ThemeData(

-        // This is the theme of your application.

-        //

-        // Try running your application with "flutter run". You'll see the

-        // application has a blue toolbar. Then, without quitting the app, try

-        // changing the primarySwatch below to Colors.green and then invoke

-        // "hot reload" (press "r" in the console where you ran "flutter run",

-        // or simply save your changes to "hot reload" in a Flutter IDE).

-        // Notice that the counter didn't reset back to zero; the application

-        // is not restarted.

-        primarySwatch: Colors.blue,

+        primarySwatch: Colors.green,

       ),

       home: const MyHomePage(title: 'Flutter Demo Home Page'),

     );

@@ -32,16 +26,6 @@ class MyApp extends StatelessWidget {
 

 class MyHomePage extends StatefulWidget {

   const MyHomePage({super.key, required this.title});

-

-  // This widget is the home page of your application. It is stateful, meaning

-  // that it has a State object (defined below) that contains fields that affect

-  // how it looks.

-

-  // This class is the configuration for the state. It holds the values (in this

-  // case the title) provided by the parent (in this case the App widget) and

-  // used by the build method of the State. Fields in a Widget subclass are

-  // always marked "final".

-

   final String title;

 

   @override

@@ -49,68 +33,9 @@ class MyHomePage extends StatefulWidget {
 }

 

 class _MyHomePageState extends State<MyHomePage> {

-  int _counter = 0;

-

-  void _incrementCounter() {

-    setState(() {

-      // This call to setState tells the Flutter framework that something has

-      // changed in this State, which causes it to rerun the build method below

-      // so that the display can reflect the updated values. If we changed

-      // _counter without calling setState(), then the build method would not be

-      // called again, and so nothing would appear to happen.

-      _counter++;

-    });

-  }

 

   @override

   Widget build(BuildContext context) {

-    // This method is rerun every time setState is called, for instance as done

-    // by the _incrementCounter method above.

-    //

-    // The Flutter framework has been optimized to make rerunning build methods

-    // fast, so that you can just rebuild anything that needs updating rather

-    // than having to individually change instances of widgets.

-    return Scaffold(

-      appBar: AppBar(

-        // Here we take the value from the MyHomePage object that was created by

-        // the App.build method, and use it to set our appbar title.

-        title: Text(widget.title),

-      ),

-      body: Center(

-        // Center is a layout widget. It takes a single child and positions it

-        // in the middle of the parent.

-        child: Column(

-          // Column is also a layout widget. It takes a list of children and

-          // arranges them vertically. By default, it sizes itself to fit its

-          // children horizontally, and tries to be as tall as its parent.

-          //

-          // Invoke "debug painting" (press "p" in the console, choose the

-          // "Toggle Debug Paint" action from the Flutter Inspector in Android

-          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)

-          // to see the wireframe for each widget.

-          //

-          // Column has various properties to control how it sizes itself and

-          // how it positions its children. Here we use mainAxisAlignment to

-          // center the children vertically; the main axis here is the vertical

-          // axis because Columns are vertical (the cross axis would be

-          // horizontal).

-          mainAxisAlignment: MainAxisAlignment.center,

-          children: <Widget>[

-            const Text(

-              'You have pushed the button this many times:',

-            ),

-            Text(

-              '$_counter',

-              style: Theme.of(context).textTheme.headline4,

-            ),

-          ],

-        ),

-      ),

-      floatingActionButton: FloatingActionButton(

-        onPressed: _incrementCounter,

-        tooltip: 'Increment',

-        child: const Icon(Icons.add),

-      ), // This trailing comma makes auto-formatting nicer for build methods.

-    );

+    return login_screen();

   }

 }

diff --git a/lib/screens/home_screen.dart b/lib/screens/home_screen.dart
new file mode 100644
index 0000000..e7b296e
--- /dev/null
+++ b/lib/screens/home_screen.dart
@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';

+

+class HomeScreen extends StatefulWidget {

+  static const String id = 'HomeScreen';

+  const HomeScreen({super.key});

+

+  @override

+  State<HomeScreen> createState() => _HomeScreenState();

+}

+

+class _HomeScreenState extends State<HomeScreen> {

+

+  int _counter = 0;

+

+  void _incrementCounter() {

+    setState(() {

+      _counter++;

+    });

+  }

+  

+  @override

+  Widget build(BuildContext context) {

+    return Scaffold(

+      backgroundColor: const Color(0xff002922),

+      body: Center(

+        child: Column(

+          mainAxisAlignment: MainAxisAlignment.center,

+          children: <Widget>[

+            const Text(

+              'You have pushed the button this many times:',

+            ),

+            Text(

+              '$_counter',

+              style: Theme.of(context).textTheme.headline4,

+            ),

+          ],

+        ),

+      ),

+      floatingActionButton: FloatingActionButton(

+        onPressed: _incrementCounter,

+        tooltip: 'Increment',

+        child: const Icon(Icons.add),

+      ), // This trailing comma makes auto-formatting nicer for build methods.

+    );

+  }

+}
\ No newline at end of file
diff --git a/lib/screens/login_screen.dart b/lib/screens/login_screen.dart
new file mode 100644
index 0000000..ab0e67d
--- /dev/null
+++ b/lib/screens/login_screen.dart
@@ -0,0 +1,40 @@
+

+

+import 'package:flutter/material.dart';

+import 'package:flutter_signin_button/flutter_signin_button.dart';

+import 'package:project_residue/firebase/auth.dart';

+import 'package:project_residue/screens/home_screen.dart';

+

+

+class login_screen extends StatelessWidget {

+  static const String id = 'login_screen';

+  login_screen({Key? key}) : super(key: key);

+  final AuthMethords _authMethords = AuthMethords();

+

+  @override

+  Widget build(BuildContext context) {

+    return Scaffold(

+      body: Center(

+        child: Column(

+          children: [

+            SizedBox(height: 40,),

+            SignInButton(

+              Buttons.Google,

+              onPressed: () async {

+                  bool result = await _authMethords.signInWIthGoogle();

+                  if(result){

+                    // ignore: use_build_context_synchronously

+                    Navigator.push(

+                          context,

+                          MaterialPageRoute(builder: (context) => const HomeScreen()),

+                        );

+                  }

+                    

+                  },

+              )

+          ],

+        ),

+      ),

+    );

+  }

+}
\ No newline at end of file
diff --git a/pubspec.lock b/pubspec.lock
index d770cac..852d33c 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -153,6 +153,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
+  flutter_signin_button:
+    dependency: "direct main"
+    description:
+      name: flutter_signin_button
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -163,6 +170,48 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  font_awesome_flutter:
+    dependency: transitive
+    description:
+      name: font_awesome_flutter
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "9.2.0"
+  google_sign_in:
+    dependency: "direct main"
+    description:
+      name: google_sign_in
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.4.2"
+  google_sign_in_android:
+    dependency: transitive
+    description:
+      name: google_sign_in_android
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.1.2"
+  google_sign_in_ios:
+    dependency: transitive
+    description:
+      name: google_sign_in_ios
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.5.1"
+  google_sign_in_platform_interface:
+    dependency: transitive
+    description:
+      name: google_sign_in_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.3.0"
+  google_sign_in_web:
+    dependency: transitive
+    description:
+      name: google_sign_in_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.2"
   http:
     dependency: transitive
     description:
@@ -233,6 +282,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.3"
+  quiver:
+    dependency: transitive
+    description:
+      name: quiver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -296,4 +352,4 @@ packages:
     version: "2.1.2"
 sdks:
   dart: ">=2.18.4 <3.0.0"
-  flutter: ">=1.20.0"
+  flutter: ">=2.10.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 628c52e..b37d524 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -36,6 +36,9 @@ dependencies:
   firebase_storage:

   cloud_firestore:

 

+  google_sign_in:

+  flutter_signin_button:

+

   # The following adds the Cupertino Icons font to your application.

   # Use with the CupertinoIcons class for iOS style icons.

   cupertino_icons: ^1.0.2