Resolved Error:The operator '[]' isn't defined” error when using .data[] in flutter firestore

.flutter-plugins-dependencies

@@ -0,0 +1 @@
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"cloud_firestore","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\cloud_firestore-0.13.7\\\\","dependencies":["firebase_core"]},{"name":"firebase_analytics","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_analytics-5.0.16\\\\","dependencies":[]},{"name":"firebase_auth","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_auth-0.16.1\\\\","dependencies":["firebase_core"]},{"name":"firebase_core","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_core-0.4.5\\\\","dependencies":[]},{"name":"firebase_storage","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_storage-3.1.6\\\\","dependencies":["firebase_core"]},{"name":"google_sign_in","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\google_sign_in-4.5.4\\\\","dependencies":[]},{"name":"image_picker","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\image_picker-0.6.7+11\\\\","dependencies":[]}],"android":[{"name":"cloud_firestore","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\cloud_firestore-0.13.7\\\\","dependencies":["firebase_core"]},{"name":"firebase_analytics","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_analytics-5.0.16\\\\","dependencies":[]},{"name":"firebase_auth","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_auth-0.16.1\\\\","dependencies":["firebase_core"]},{"name":"firebase_core","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_core-0.4.5\\\\","dependencies":[]},{"name":"firebase_storage","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_storage-3.1.6\\\\","dependencies":["firebase_core"]},{"name":"flutter_plugin_android_lifecycle","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\flutter_plugin_android_lifecycle-1.0.11\\\\","dependencies":[]},{"name":"google_sign_in","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\google_sign_in-4.5.4\\\\","dependencies":[]},{"name":"image_picker","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\image_picker-0.6.7+11\\\\","dependencies":["flutter_plugin_android_lifecycle"]}],"macos":[{"name":"cloud_firestore","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\cloud_firestore-0.13.7\\\\","dependencies":["firebase_core"]},{"name":"firebase_auth","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_auth-0.16.1\\\\","dependencies":["firebase_core"]},{"name":"firebase_core","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_core-0.4.5\\\\","dependencies":[]},{"name":"firebase_storage","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_storage-3.1.6\\\\","dependencies":["firebase_core"]}],"linux":[],"windows":[],"web":[{"name":"cloud_firestore_web","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\cloud_firestore_web-0.1.1+2\\\\","dependencies":[]},{"name":"firebase_analytics_web","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_analytics_web-0.1.1\\\\","dependencies":[]},{"name":"firebase_auth_web","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_auth_web-0.1.3+1\\\\","dependencies":[]},{"name":"firebase_core_web","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\firebase_core_web-0.1.1+2\\\\","dependencies":[]},{"name":"google_sign_in_web","path":"C:\\\\src\\\\flutter\\\\flutter\\\\.pub-cache\\\\hosted\\\\pub.dartlang.org\\\\google_sign_in_web-0.9.2\\\\","dependencies":[]}]},"dependencyGraph":[{"name":"cloud_firestore","dependencies":["firebase_core","cloud_firestore_web"]},{"name":"cloud_firestore_web","dependencies":["firebase_core"]},{"name":"firebase_analytics","dependencies":["firebase_analytics_web"]},{"name":"firebase_analytics_web","dependencies":[]},{"name":"firebase_auth","dependencies":["firebase_core","firebase_auth_web"]},{"name":"firebase_auth_web","dependencies":[]},{"name":"firebase_core","dependencies":["firebase_core_web"]},{"name":"firebase_core_web","dependencies":[]},{"name":"firebase_storage","dependencies":["firebase_core"]},{"name":"flutter_plugin_android_lifecycle","dependencies":[]},{"name":"google_sign_in","dependencies":["google_sign_in_web"]},{"name":"google_sign_in_web","dependencies":[]},{"name":"image_picker","dependencies":["flutter_plugin_android_lifecycle"]}],"date_created":"2020-10-02 10:42:41.447808","version":"1.22.0"}

android/app/build.gradle

@@ -33,7 +33,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "mohak.fchat.app"
+        applicationId "mohakApoorv.fchat.app"
         minSdkVersion 16
         targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()

android/app/google-services.json

@@ -1,52 +1,37 @@
 {
   "project_info": {
-    "project_number": "910539670225",
-    "firebase_url": "https://flutterchatapp-a28f7.firebaseio.com",
-    "project_id": "flutterchatapp-a28f7",
-    "storage_bucket": "flutterchatapp-a28f7.appspot.com"
+    "project_number": "171126428694",
+    "firebase_url": "https://mohakchat-416fc.firebaseio.com",
+    "project_id": "mohakchat-416fc",
+    "storage_bucket": "mohakchat-416fc.appspot.com"
   },
   "client": [
     {
       "client_info": {
-        "mobilesdk_app_id": "1:910539670225:android:803bd2a516dadbec",
+        "mobilesdk_app_id": "1:171126428694:android:66239cb3042c24e741d137",
         "android_client_info": {
-          "package_name": "mohak.fchat.app"
+          "package_name": "mohakApoorv.fchat.app"
         }
       },
       "oauth_client": [
         {
-          "client_id": "910539670225-3gif84a78g1ndkaiahruasnh63m8mtmo.apps.googleusercontent.com",
-          "client_type": 1,
-          "android_info": {
-            "package_name": "mohak.fchat.app",
-            "certificate_hash": "c0367f976f474b02d25e79d452dd3124a5ce8df9"
-          }
-        },
-        {
-          "client_id": "910539670225-pbbhu109govqb0h8mjjc7dbhrkqj8tnd.apps.googleusercontent.com",
+          "client_id": "171126428694-9fnukbc9j791q58e09so3mb86bnfbmpe.apps.googleusercontent.com",
           "client_type": 3
         }
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyD8GFBCF0_4XfVHrU_erYryodtAv6TDqOk"
+          "current_key": "AIzaSyAQv6VC7yr8BcbGJeC_pSVuDv67f3FsZUI"
         }
       ],
       "services": {
-        "analytics_service": {
-          "status": 1
-        },
         "appinvite_service": {
-          "status": 2,
           "other_platform_oauth_client": [
             {
-              "client_id": "910539670225-pbbhu109govqb0h8mjjc7dbhrkqj8tnd.apps.googleusercontent.com",
+              "client_id": "171126428694-9fnukbc9j791q58e09so3mb86bnfbmpe.apps.googleusercontent.com",
               "client_type": 3
             }
           ]
-        },
-        "ads_service": {
-          "status": 2
         }
       }
     }

android/build.gradle

@@ -7,7 +7,8 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.0'
         //classpath 'com.google.gms:google-services:4.0.1'
-        classpath 'com.google.gms:google-services:4.2.0'
+        // classpath 'com.google.gms:google-services:4.2.0'
+        classpath 'com.google.gms:google-services:4.3.4'
     }
 }
 

android/gradle.properties

@@ -1,3 +1,4 @@
 org.gradle.jvmargs=-Xmx1536M
 android.enableJetifier=true
 android.useAndroidX=true
+android.enableR8=true

ios/Flutter/flutter_export_environment.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+# This is a generated file; do not edit or check into version control.
+export "FLUTTER_ROOT=C:\src\flutter\flutter"
+export "FLUTTER_APPLICATION_PATH=C:\Users\apoor\Flutter-Clones\chat-app-flutter"
+export "FLUTTER_TARGET=lib\main.dart"
+export "FLUTTER_BUILD_DIR=build"
+export "SYMROOT=${SOURCE_ROOT}/../build\ios"
+export "OTHER_LDFLAGS=$(inherited) -framework Flutter"
+export "FLUTTER_FRAMEWORK_DIR=C:\src\flutter\flutter\bin\cache\artifacts\engine\ios"
+export "FLUTTER_BUILD_NAME=1.0.0"
+export "FLUTTER_BUILD_NUMBER=1"
+export "DART_OBFUSCATION=false"
+export "TRACK_WIDGET_CREATION=false"
+export "TREE_SHAKE_ICONS=false"
+export "PACKAGE_CONFIG=.packages"

lib/all_users_screen.dart

@@ -1,16 +1,17 @@
 import 'dart:async';
-import 'dart:io';
-
 import 'package:chat_app/chat_screen.dart';
-import 'package:chat_app/home_page.dart';
 import 'package:chat_app/main.dart';
-import 'package:chat_app/models/user_details.dart';
 import 'package:firebase_auth/firebase_auth.dart';
 import 'package:flutter/material.dart';
 import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:google_sign_in/google_sign_in.dart';
+//Unused Imports
+// import 'dart:io';
+// import 'package:chat_app/home_page.dart';
+// import 'package:chat_app/models/user_details.dart';
 
 class AllUsersScreen extends StatefulWidget {
+  static const String id = 'all_users_screen';
   _AllUsersScreenState createState() => _AllUsersScreenState();
 }
 

lib/chat_screen.dart

@@ -10,6 +10,7 @@ import 'package:image_picker/image_picker.dart';
 import 'package:firebase_storage/firebase_storage.dart';
 
 class ChatScreen extends StatefulWidget {
+  static const String id = 'chat_screen';
   String name;
   String photoUrl;
   String receiverUid;
@@ -39,7 +40,7 @@ class _ChatScreenState extends State<ChatScreen> {
   @override
   void initState() {
     super.initState();
-    
+
     _messageController = TextEditingController();
     getUID().then((user) {
       setState(() {
@@ -304,8 +305,9 @@ class _ChatScreenState extends State<ChatScreen> {
         Padding(
           padding: const EdgeInsets.all(12.0),
           child: Row(
-            mainAxisAlignment: snapshot['senderUid'] == _senderuid?
-            MainAxisAlignment.end : MainAxisAlignment.start,
+            mainAxisAlignment: snapshot['senderUid'] == _senderuid
+                ? MainAxisAlignment.end
+                : MainAxisAlignment.start,
             children: <Widget>[
               snapshot['senderUid'] == _senderuid
                   ? CircleAvatar(
@@ -351,7 +353,9 @@ class _ChatScreenState extends State<ChatScreen> {
                             Navigator.push(
                                 context,
                                 new MaterialPageRoute(
-                                    builder: (context) => FullScreenImage(photoUrl: snapshot['photoUrl'],)));
+                                    builder: (context) => FullScreenImage(
+                                          photoUrl: snapshot['photoUrl'],
+                                        )));
                           }),
                           child: Hero(
                             tag: snapshot['photoUrl'],

lib/full_screen_image.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 
 class FullScreenImage extends StatefulWidget {
-
+  static const String id = 'full_screen_image';
   String photoUrl;
   FullScreenImage({this.photoUrl});
 
@@ -13,35 +13,35 @@ class _FullScreenImageState extends State<FullScreenImage> {
   Widget build(BuildContext context) {
     return Scaffold(
       body: SizedBox.expand(
-          child: Stack(
-            children: <Widget>[
-              Align(
-                alignment: Alignment.center,
-                child: Hero(
-                  tag: widget.photoUrl,
-                  child: Image.network(widget.photoUrl),
-                ),
+        child: Stack(
+          children: <Widget>[
+            Align(
+              alignment: Alignment.center,
+              child: Hero(
+                tag: widget.photoUrl,
+                child: Image.network(widget.photoUrl),
+              ),
+            ),
+            Align(
+              alignment: Alignment.topCenter,
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.start,
+                mainAxisSize: MainAxisSize.min,
+                children: <Widget>[
+                  AppBar(
+                    elevation: 0.0,
+                    backgroundColor: Colors.transparent,
+                    leading: IconButton(
+                      icon: Icon(Icons.close, color: Colors.black),
+                      onPressed: () => Navigator.pop(context),
+                    ),
+                  )
+                ],
               ),
-              Align(
-                alignment: Alignment.topCenter,
-                child: Column(
-                  mainAxisAlignment: MainAxisAlignment.start,
-                  mainAxisSize: MainAxisSize.min,
-                  children: <Widget>[
-                    AppBar(
-                      elevation: 0.0,
-                      backgroundColor: Colors.transparent,
-                      leading: IconButton(
-                        icon: Icon(Icons.close, color: Colors.black),
-                        onPressed: () => Navigator.pop(context),
-                      ),
-                    )
-                  ],
-                ),
-              )
-            ],
-          ),
+            )
+          ],
         ),
-      );
+      ),
+    );
   }
-}
+}

lib/home_page.dart

@@ -7,6 +7,7 @@ import 'package:cloud_firestore/cloud_firestore.dart';
 import 'dart:async';
 
 class HomePage extends StatefulWidget {
+  static const String id = 'home_page';
   _HomePageState createState() => _HomePageState();
 }
 
@@ -26,9 +27,9 @@ class _HomePageState extends State<HomePage> {
     AuthCredential authCredential = GoogleAuthProvider.getCredential(
         idToken: _signInAuthentication.idToken,
         accessToken: _signInAuthentication.accessToken);
-
+//add ().user
     FirebaseUser user =
-        await _firebaseAuth.signInWithCredential(authCredential);
+        (await _firebaseAuth.signInWithCredential(authCredential)).user;
     return user;
   }
 

lib/main.dart

@@ -43,8 +43,19 @@ class MyAppState extends State<MyApp> {
     return MaterialApp(
       title: "Chat App",
       theme: ThemeData(primarySwatch: Colors.red),
-      routes: <String, WidgetBuilder>{
-        '/chatscreen': (BuildContext context) => new AllUsersScreen(),
+      // routes: <String, WidgetBuilder>{
+      //   '/chatscreen': (BuildContext context) => new AllUsersScreen(),
+      // },
+      routes: {
+//        SplashScreen.id: (context) => SplashScreen(),
+        AllUsersScreen.id: (context) => AllUsersScreen(),
+        HomePage.id: (context) => HomePage(),
+        // RegistrationScreen.id: (context) => RegistrationScreen(),
+        // MyHomePage.id: (context) => MyHomePage(),
+        // NotificationScreen.id: (context) => NotificationScreen(),
+        // AboutPage.id: (context) => AboutPage(),
+        // //Search User Screen
+        // SeachAppBarRecipe.id: (context) => SeachAppBarRecipe(),
       },
       home: isLoggedIn == true ? AllUsersScreen() : HomePage(),
     );

pubspec.yaml

@@ -18,25 +18,47 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
+  # cupertino_icons: ^0.1.2
+  # firebase_auth:
+  # google_sign_in:
+  # cloud_firestore:
+  # firebase_storage:
+  # image_picker:
   cupertino_icons: ^0.1.2
-  firebase_auth:
   google_sign_in:
+  image_picker:
+
+  firebase_auth:
   cloud_firestore:
   firebase_storage:
-  image_picker:
-
+  # cupertino_icons: ^0.1.2
+  # flutter_signin_button: ^1.0.0
+  # modal_progress_hud: ^0.1.3
+  # animated_text_kit: ^1.3.0
+  # url_launcher: ^4.0.1
+  # share: ^0.6.3+6
+  #  Firebase
+  firebase_core: ^0.4.3+2
+  # firebase_auth: ^0.15.5+2
+  firebase_analytics: ^5.0.11
+  # cloud_firestore: ^0.13.4+2
+  #  Google SignIn
+  # google_sign_in: ^4.1.4
+  #  rx dart
+  rxdart: ^0.21.0
+  # firebase_storage: ^3.1.5
+  # image_picker: ^0.6.4
+  # english_words:
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
 
-
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec
 
 # The following section is specific to Flutter.
 flutter:
-
   # The following line ensures that the Material Icons font is
   # included with your application, so that you can use the icons in
   # the material Icons class.