Zenith/lib/login.dart

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

class LoginPage extends StatefulWidget {
  const LoginPage({super.key});

  @override
  State<LoginPage> createState() => _LoginPageState();
}

class _LoginPageState extends State<LoginPage> {
  final serverController = TextEditingController();
  final usernameController = TextEditingController();
  final passwordController = TextEditingController();

  void connectMatrix() async {
    debugPrint("Making the client...");
    final client = Client("zenith");
    client.onLoginStateChanged.stream.listen((event) {
      debugPrint("LoginState=${event.toString()}");
    });

    debugPrint("Checking the homeserver...");
    await client.checkHomeserver(Uri.parse(serverController.text));

    debugPrint("Logging in...");
    await client.login(LoginType.mLoginPassword,
        identifier: AuthenticationUserIdentifier(user: usernameController.text),
        password: passwordController.text);

    for (var room in client.rooms) {
      debugPrint(
          "Room ID: ${room.id}, Room Name: ${room.getLocalizedDisplayname()}");
    }
  }

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: const Text("Login"),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              TextFormField(
                controller: serverController,
                decoration: const InputDecoration(
                    labelText: 'Server', hintText: 'https://matrix.org'),
              ),
              TextFormField(
                controller: usernameController,
                decoration: const InputDecoration(
                    labelText: 'Username', hintText: 'john'),
              ),
              TextFormField(
                controller: passwordController,
                decoration: const InputDecoration(labelText: 'Password'),
                obscureText: true,
              ),
            ],
          ),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: connectMatrix,
        tooltip: 'Log in',
        child: const Icon(Icons.login),
      ),
    );
  }
}