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October 13, 2023 23:20
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flutter_chat_firebase_config
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import 'package:flutter/material.dart'; | |
import 'package:firebase_core/firebase_core.dart'; | |
Future<void> main() async { | |
await Firebase.initializeApp( | |
options: const FirebaseOptions( | |
apiKey: 'AIzaSyBFQIi3pNiQNoM4y7dBKxBCp-lzeqSPfg8', | |
appId: '1:702148614087:web:7615cf62cdbb20e7c52be2', | |
messagingSenderId: '702148614087', | |
projectId: 'flutter-chat-aliyazdi', | |
authDomain: 'flutter-chat-aliyazdi.firebaseapp.com', | |
storageBucket: 'flutter-chat-aliyazdi.appspot.com', | |
), | |
); | |
runApp(const MyApp()); | |
} | |
class MyApp extends StatelessWidget { | |
const MyApp({super.key}); | |
// This widget is the root of your application. | |
@override | |
Widget build(BuildContext context) { | |
return MaterialApp( | |
title: 'Flutter Chat', | |
theme: ThemeData( | |
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple), | |
useMaterial3: true, | |
), | |
home: const MyHomePage(), | |
); | |
} | |
} | |
class MyHomePage extends StatefulWidget { | |
const MyHomePage({super.key}); | |
@override | |
State<MyHomePage> createState() => _MyHomePageState(); | |
} | |
class _MyHomePageState extends State<MyHomePage> { | |
final textMessageController = TextEditingController(); | |
final messages = List<ChatMessage>.empty(growable: true); | |
bool _isTextValidated = true; | |
void _sendMessage() { | |
if (textMessageController.text.isEmpty) { | |
setState(() { | |
_isTextValidated = false; | |
}); | |
} else { | |
setState(() { | |
messages.insert( | |
0, | |
ChatMessage( | |
time: DateTime.now().millisecondsSinceEpoch, | |
message: textMessageController.text, | |
), | |
); | |
}); | |
textMessageController.clear(); | |
} | |
} | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
appBar: AppBar( | |
backgroundColor: Theme.of(context).colorScheme.inversePrimary, | |
title: const Text('Chat Page'), | |
), | |
body: Padding( | |
padding: const EdgeInsets.symmetric(horizontal: 16.0), | |
child: Column( | |
crossAxisAlignment: CrossAxisAlignment.start, | |
children: [ | |
Expanded( | |
child: ListView.builder( | |
itemCount: messages.length, | |
reverse: true, | |
padding: const EdgeInsets.symmetric(vertical: 8.0), | |
itemBuilder: (context, index) { | |
return ListTile( | |
leading: DefaultTextStyle.merge( | |
style: const TextStyle(color: Colors.indigo), | |
child: Text(messages[index].timestamp), | |
), | |
title: Text(messages[index].message), | |
); | |
}, | |
), | |
), | |
Padding( | |
padding: const EdgeInsets.symmetric(vertical: 8.0), | |
child: TextField( | |
controller: textMessageController, | |
decoration: InputDecoration( | |
suffixIcon: IconButton( | |
icon: const Icon(Icons.send), | |
onPressed: _sendMessage, | |
), | |
border: const OutlineInputBorder(), | |
labelText: 'Enter your message', | |
errorText: | |
_isTextValidated ? null : 'Message can not be empty', | |
), | |
onChanged: (value) { | |
setState(() { | |
_isTextValidated = true; | |
}); | |
}, | |
onSubmitted: (value) => _sendMessage(), | |
), | |
), | |
], | |
), | |
), | |
); | |
} | |
} | |
class ChatMessage { | |
ChatMessage({ | |
required this.time, | |
required this.message, | |
}); | |
final int time; | |
final String message; | |
String get timestamp => | |
'${DateTime.fromMillisecondsSinceEpoch(time).hour}:${DateTime.fromMillisecondsSinceEpoch(time).minute}'; | |
} |
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