88 lines
7.4 KiB
Dart
88 lines
7.4 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../core/navigation_provider.dart';
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import '../../providers/auth_provider.dart';
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class LoginPage extends ConsumerStatefulWidget {
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const LoginPage({super.key});
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@override ConsumerState<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends ConsumerState<LoginPage> {
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final _phoneCtrl = TextEditingController();
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final _codeCtrl = TextEditingController();
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bool _agreed = false;
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bool _sending = false;
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int _countdown = 0;
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bool _loading = false;
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String? _error;
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@override void dispose() { _phoneCtrl.dispose(); _codeCtrl.dispose(); super.dispose(); }
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Future<void> _sendSms() async {
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final phone = _phoneCtrl.text.trim();
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if (phone.length != 11 || !phone.startsWith('1')) { setState(() => _error = '请输入正确的手机号'); return; }
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setState(() { _sending = true; _error = null; });
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final result = await ref.read(authProvider.notifier).sendSms(phone);
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setState(() { _sending = false; });
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if (result.error != null) { setState(() => _error = result.error); return; }
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if (result.devCode != null) _codeCtrl.text = result.devCode!;
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setState(() => _countdown = 60); _startCountdown();
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}
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void _startCountdown() async {
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for (var i = 60; i > 0; i--) { await Future.delayed(const Duration(seconds: 1)); if (!mounted) return; setState(() => _countdown = i - 1); }
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}
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Future<void> _login() async {
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if (!_agreed) { setState(() => _error = '请阅读并同意服务协议和隐私政策'); return; }
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setState(() { _loading = true; _error = null; });
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final err = await ref.read(authProvider.notifier).login(_phoneCtrl.text.trim(), _codeCtrl.text.trim());
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setState(() => _loading = false );
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if (err != null) { setState(() => _error = err); return; }
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goRoute(ref, 'home');
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}
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@override Widget build(BuildContext context) {
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final authState = ref.watch(authProvider);
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if (authState.isLoggedIn && !authState.isLoading) WidgetsBinding.instance.addPostFrameCallback((_) => goRoute(ref, 'home'));
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return Scaffold(
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body: Container(
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decoration: const BoxDecoration(gradient: LinearGradient(begin: Alignment.topLeft, end: Alignment.bottomRight, colors: [Color(0xFFF0F2FF), Color(0xFFF0F2FF), Color(0xFFE8E4FF)])),
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child: SafeArea(child: SingleChildScrollView(padding: const EdgeInsets.symmetric(horizontal: 32), child: Column(children: [
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const SizedBox(height: 60),
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Container(width: 140, height: 140, decoration: BoxDecoration(color: const Color(0xFF8B9CF7).withAlpha(20), borderRadius: BorderRadius.circular(70)), child: Stack(alignment: Alignment.center, children: [
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Container(width: 100, height: 100, decoration: BoxDecoration(color: Colors.white.withAlpha(200), borderRadius: BorderRadius.circular(50)), child: Icon(Icons.favorite, size: 50, color: const Color(0xFF8B9CF7))),
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Positioned(right: 10, top: 10, child: Container(width: 30, height: 30, decoration: BoxDecoration(color: const Color(0xFFFFB800), borderRadius: BorderRadius.circular(15), border: Border.all(color: Colors.white, width: 2)), child: const Icon(Icons.add, size: 16, color: Colors.white))),
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])),
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const SizedBox(height: 24),
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Text('健康管家', style: TextStyle(fontSize: 28, fontWeight: FontWeight.bold, color: const Color(0xFF1A1A1A))),
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const SizedBox(height: 8),
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Text('你的 AI 心脏健康管家', style: TextStyle(fontSize: 15, color: Colors.grey[500])),
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const SizedBox(height: 48),
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TextField(controller: _phoneCtrl, keyboardType: TextInputType.phone, maxLength: 11,
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decoration: InputDecoration(hintText: '请输入手机号', prefixIcon: const Padding(padding: EdgeInsets.only(left: 12), child: Text('+86', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500))), counterText: '', filled: true, fillColor: Colors.white, border: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: BorderSide.none), enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: BorderSide.none), focusedBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: const BorderSide(color: Color(0xFF8B9CF7), width: 1.5)))),
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const SizedBox(height: 16),
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Row(children: [
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Expanded(child: TextField(controller: _codeCtrl, keyboardType: TextInputType.number, maxLength: 6,
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decoration: InputDecoration(hintText: '验证码', filled: true, fillColor: Colors.white, border: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: BorderSide.none), enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: BorderSide.none), focusedBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: const BorderSide(color: Color(0xFF8B9CF7), width: 1.5)), counterText: ''))),
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const SizedBox(width: 12),
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GestureDetector(onTap: (_countdown > 0 || _sending) ? null : _sendSms, child: Container(width: 100, height: 48, alignment: Alignment.center, decoration: BoxDecoration(color: _countdown > 0 ? Colors.grey[300] : const Color(0xFF8B9CF7), borderRadius: BorderRadius.circular(12)), child: Text(_sending ? '发送中' : _countdown > 0 ? '${_countdown}s' : '获取验证码', style: TextStyle(fontSize: 14, color: _countdown > 0 ? Colors.grey[600] : Colors.white, fontWeight: FontWeight.w500)))),
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]),
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const SizedBox(height: 8),
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Align(alignment: Alignment.centerLeft, child: GestureDetector(onTap: () => setState(() => _agreed = !_agreed), child: Row(mainAxisSize: MainAxisSize.min, children: [
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Container(width: 20, height: 20, margin: const EdgeInsets.only(right: 6), decoration: BoxDecoration(shape: BoxShape.rectangle, color: _agreed ? const Color(0xFF8B9CF7) : Colors.transparent, border: Border.all(color: _agreed ? const Color(0xFF8B9CF7) : const Color(0xFFBDBDBD), width: 1.5), borderRadius: BorderRadius.circular(4)), child: _agreed ? const Icon(Icons.check, size: 14, color: Colors.white) : null),
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RichText(text: TextSpan(children: [TextSpan(text: '已阅读并同意', style: TextStyle(fontSize: 13, color: Colors.grey[600])), TextSpan(text: '《服务协议》', style: const TextStyle(fontSize: 13, color: Color(0xFF8B9CF7))), TextSpan(text: '和', style: TextStyle(fontSize: 13, color: Colors.grey[600])), TextSpan(text: '《隐私政策》', style: const TextStyle(fontSize: 13, color: Color(0xFF8B9CF7)))])),
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]))),
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if (_error != null) Padding(padding: const EdgeInsets.only(top: 12), child: Text(_error!, style: const TextStyle(color: Color(0xFFE53935), fontSize: 13))),
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const SizedBox(height: 24),
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GestureDetector(onTap: _loading ? null : _login, child: Container(width: double.infinity, height: 50, alignment: Alignment.center, decoration: BoxDecoration(gradient: const LinearGradient(colors: [Color(0xFFA8B5FA), Color(0xFF8B9CF7)]), borderRadius: BorderRadius.circular(25), boxShadow: [BoxShadow(color: const Color(0xFF8B9CF7).withAlpha(80), blurRadius: 16, offset: const Offset(0, 8))]), child: _loading ? const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2.5, color: Colors.white)) : const Text('登 录', style: TextStyle(fontSize: 17, color: Colors.white, fontWeight: FontWeight.w600, letterSpacing: 2)))),
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const SizedBox(height: 40),
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]))),
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),
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);
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}
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}
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