added screenshots

.gitignore

@@ -44,3 +44,21 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/

android/app/build.gradle

@@ -36,7 +36,7 @@ android {
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.psbapplications.flashchat"
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 30
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

lib/constants.dart

@@ -14,7 +14,7 @@ const kMessageTextFieldDecoration = InputDecoration(
 
 const kMessageContainerDecoration = BoxDecoration(
   border: Border(
-    top: BorderSide(color: Colors.lightBlueAccent, width: 2.0),
+    top: BorderSide(width: 2.0),
   ),
 );
 

lib/main.dart

@@ -15,6 +15,17 @@ class FlashChat extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData.light().copyWith(
+        primaryColor: Colors.blue,
+        dividerTheme: DividerThemeData(color: Colors.black54),
+        iconTheme: IconThemeData(color: Colors.black),
+      ),
+      darkTheme: ThemeData.dark().copyWith(
+        primaryColor: Colors.blueGrey.shade900,
+        dividerTheme: DividerThemeData(color: Colors.white),
+        iconTheme: IconThemeData(color: Colors.white),
+      ),
       initialRoute: WelcomeScreen.id,
       routes: {
         WelcomeScreen.id: (context) => WelcomeScreen(),
@@ -24,22 +35,4 @@ class FlashChat extends StatelessWidget {
       },
     );
   }
-}
-
-/*
-import 'package:flutter/material.dart';
-
-void main() => runApp(MyApp());
-
-class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      child: Center(
-        child: Text("Hello World"),
-      ),
-    );
-  }
-}*/
+}

lib/screens/chat_screen.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flashchat/constants.dart';
 import 'package:firebase_auth/firebase_auth.dart';
@@ -6,6 +7,7 @@ import 'package:cloud_firestore/cloud_firestore.dart';
 final _firestore = FirebaseFirestore.instance;
 // FirebaseUser? loggedInUser;
 User? loggedInUser;
+
 class ChatScreen extends StatefulWidget {
   static const String id = 'chat_screen';
   @override
@@ -50,7 +52,7 @@ class _ChatScreenState extends State<ChatScreen> {
               }),
         ],
         title: Text('⚡️Chat'),
-        backgroundColor: Colors.lightBlueAccent,
+        // backgroundColor: Colors.lightBlueAccent,
       ),
       body: SafeArea(
         child: Column(
@@ -73,19 +75,37 @@ class _ChatScreenState extends State<ChatScreen> {
                     ),
                   ),
                   FlatButton(
-                    onPressed: () {
-                      messageTextController.clear();
-                      _firestore.collection('messages').add({
-                        'text': messageText,
-                        'sender': loggedInUser!.email,
-                        'time': FieldValue.serverTimestamp(),
-                      });
-                    },
-                    child: Text(
-                      'Send',
-                      style: kSendButtonTextStyle,
-                    ),
-                  ),
+                      onPressed: () {
+                        messageTextController.clear();
+                        _firestore.collection('messages').add({
+                          'text': messageText,
+                          'sender': loggedInUser!.email,
+                          'time': FieldValue.serverTimestamp(),
+                        });
+                      },
+                      child: Material(
+                        color: Theme.of(context).brightness == Brightness.dark
+                            ? Colors.blue.shade900
+                            : Colors.lightBlue,
+                        elevation: 18.0,
+                        borderRadius: BorderRadius.circular(30),
+                        child: Padding(
+                          padding: EdgeInsets.fromLTRB(10, 5, 3, 5),
+                          child: Icon(
+                            Icons.send_rounded,
+                            size: 40.0,
+                          ),
+                        ),
+                      )
+                      // Text(
+                      //   'Send',
+                      //   style: TextStyle(
+                      //     color: Theme.of(context).brightness == Brightness.dark ? Colors.blue.shade900 : Colors.lightBlue,
+                      //     fontWeight: FontWeight.bold,
+                      //     fontSize: 18.0,
+                      //   ),
+                      // ),
+                      ),
                 ],
               ),
             ),
@@ -100,7 +120,10 @@ class MessagesStream extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return StreamBuilder<QuerySnapshot>(
-      stream: _firestore.collection('messages').orderBy('time',descending: false).snapshots(),
+      stream: _firestore
+          .collection('messages')
+          .orderBy('time', descending: false)
+          .snapshots(),
       builder: (context, snapshot) {
         if (!snapshot.hasData) {
           return Center(
@@ -161,7 +184,7 @@ class MessageBubble extends StatelessWidget {
             sender,
             style: TextStyle(
               fontSize: 12.0,
-              color: Colors.black54,
+              // color: Colors.black54,
             ),
           ),
           Material(
@@ -176,7 +199,13 @@ class MessageBubble extends StatelessWidget {
                     topRight: Radius.circular(30.0),
                   ),
             elevation: 5.0,
-            color: isMe ? Colors.lightBlueAccent : Colors.white,
+            color: isMe
+                ? Theme.of(context).brightness == Brightness.dark
+                    ? Colors.blue.shade900
+                    : Colors.lightBlue
+                : Theme.of(context).brightness == Brightness.dark
+                    ? Colors.white70
+                    : Colors.white,
             child: Padding(
               padding: EdgeInsets.symmetric(vertical: 10.0, horizontal: 20.0),
               child: Text(

lib/screens/login_screen.dart

@@ -21,7 +21,7 @@ class _LoginScreenState extends State<LoginScreen> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: Colors.white,
+      // backgroundColor: Colors.white,
       body: ModalProgressHUD(
         inAsyncCall: showSpinner,
         child: Padding(

lib/screens/registration_screen.dart

@@ -21,7 +21,7 @@ class _RegistrationScreenState extends State<RegistrationScreen> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: Colors.white,
+      // backgroundColor: Colors.white,
       body: ModalProgressHUD(
         inAsyncCall: showSpinner,
         child: Padding(

lib/screens/welcome_screen.dart

@@ -35,7 +35,7 @@ class _WelcomeScreenState extends State<WelcomeScreen>
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: animation!.value,
+      // backgroundColor: animation!.value,
       body: Padding(
         padding: EdgeInsets.symmetric(horizontal: 24.0),
         child: Column(

pubspec.lock

@@ -49,21 +49,21 @@ packages:
       name: cloud_firestore
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.0"
+    version: "2.4.0"
   cloud_firestore_platform_interface:
     dependency: transitive
     description:
       name: cloud_firestore_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.2.0"
+    version: "5.3.0"
   cloud_firestore_web:
     dependency: transitive
     description:
       name: cloud_firestore_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.0"
+    version: "2.3.0"
   collection:
     dependency: transitive
     description:
@@ -91,28 +91,28 @@ packages:
       name: firebase_auth
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "3.0.0"
   firebase_auth_platform_interface:
     dependency: transitive
     description:
       name: firebase_auth_platform_interface
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.0.0"
+    version: "6.0.0"
   firebase_auth_web:
     dependency: transitive
     description:
       name: firebase_auth_web
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "3.0.0"
   firebase_core:
     dependency: "direct main"
     description:
       name: firebase_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.4.0"
   firebase_core_platform_interface:
     dependency: transitive
     description:

pubspec.yaml

@@ -27,9 +27,9 @@ dependencies:
 
   cupertino_icons: ^1.0.3
   animated_text_kit: ^4.2.1
-  firebase_core: ^1.3.0
-  firebase_auth: ^2.0.0
-  cloud_firestore: ^2.3.0
+  firebase_core: ^1.4.0
+  firebase_auth: ^3.0.0
+  cloud_firestore: ^2.4.0
   modal_progress_hud_nsn: ^0.1.0-nullsafety-1
 #  modal_progress_hud: ^0.1.3