flutter_app_android/lib/presentation/screens/splash_screen.dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../providers/auth_provider.dart';
import '../../core/constants/route_constants.dart';

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

  @override
  SplashScreenState createState() => SplashScreenState();
}

class SplashScreenState extends State<SplashScreen> {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      _initializeApp();
    });
  }

  Future<void> _initializeApp() async {
    final authProvider = Provider.of<AuthProvider>(context, listen: false);
    await authProvider.checkAuthStatus();
    
    // 模拟初始化延迟
    await Future.delayed(const Duration(milliseconds: 1500));
    
    // 导航到首页
    if (mounted) {
      Navigator.of(context).pushReplacementNamed(RouteConstants.home);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.blue,
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Icon(
              Icons.apps,
              size: 100,
              color: Colors.white,
            ),
            const SizedBox(height: 20),
            const Text(
              '中了么',
              style: TextStyle(
                fontSize: 32,
                fontWeight: FontWeight.bold,
                color: Colors.white,
              ),
            ),
            const SizedBox(height: 20),
            SizedBox(
              width: 60,
              height: 60,
              child: CircularProgressIndicator(
                valueColor: AlwaysStoppedAnimation<Color>(
                  Color.lerp(Colors.white, Colors.transparent, 0.3)!,  // 0.3表示30%透明
                ),
                strokeWidth: 4,
              ),
            ),
          ],
        ),
      ),
    );
  }
}