go_chat_sdk 1.1.3

go_chat_sdk: ^1.1.3 copied to clipboard

example/lib/main.dart

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

import 'im_bootstrap.dart';
import 'pages/home_page.dart';
import 'pages/login_page.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(const GoChatDemoApp());
}

class GoChatDemoApp extends StatelessWidget {
  const GoChatDemoApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'GoChat Demo',
      navigatorKey: appNavigatorKey,
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: const Color(0xFF1B6B4A)),
        useMaterial3: true,
        inputDecorationTheme: const InputDecorationTheme(
          border: OutlineInputBorder(),
        ),
      ),
      home: const _BootstrapPage(),
    );
  }
}

/// 冷启动：优先用本地缓存 Token 自动登录，仅在无 Token 或已过期时进入登录页。
class _BootstrapPage extends StatefulWidget {
  const _BootstrapPage();

  @override
  State<_BootstrapPage> createState() => _BootstrapPageState();
}

class _BootstrapPageState extends State<_BootstrapPage> {
  String _hint = '正在恢复登录…';
  String? _error;
  bool _busy = true;

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

  Future<void> _boot() async {
    setState(() {
      _busy = true;
      _error = null;
      _hint = '正在恢复登录…';
    });
    try {
      final me = await tryAutoLogin();
      if (!mounted) return;
      if (me != null) {
        Navigator.of(context).pushReplacement(
          MaterialPageRoute(builder: (_) => HomePage(me: me)),
        );
        return;
      }
      // 无缓存，或 Token 已失效被清理
      Navigator.of(context).pushReplacement(
        MaterialPageRoute(builder: (_) => const LoginPage()),
      );
    } catch (e) {
      // 多为网络抖动：本地 Token 仍在，允许重试，不必重新输密码
      GoChatLogger.e('auto login failed: $e');
      if (!mounted) return;
      setState(() {
        _busy = false;
        _error = e.toString();
        _hint = '自动登录失败';
      });
    }
  }

  void _goLogin() {
    Navigator.of(context).pushReplacement(
      MaterialPageRoute(builder: (_) => const LoginPage()),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Padding(
          padding: const EdgeInsets.all(24),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              if (_busy) ...[
                const CircularProgressIndicator(),
                const SizedBox(height: 16),
                Text(_hint),
              ] else ...[
                Text(_hint, style: Theme.of(context).textTheme.titleMedium),
                if (_error != null) ...[
                  const SizedBox(height: 12),
                  Text(
                    _error!,
                    textAlign: TextAlign.center,
                    style: TextStyle(
                      color: Theme.of(context).colorScheme.error,
                    ),
                  ),
                ],
                const SizedBox(height: 20),
                FilledButton(onPressed: _boot, child: const Text('重试')),
                const SizedBox(height: 8),
                TextButton(onPressed: _goLogin, child: const Text('重新登录')),
              ],
            ],
          ),
        ),
      ),
    );
  }
}