125 lines
3.9 KiB
Dart
125 lines
3.9 KiB
Dart
import 'package:flutter/material.dart';
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import '../models/activity.dart';
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import '../services/activity_service.dart';
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class CreateActivityScreen extends StatefulWidget {
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@override
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State<CreateActivityScreen> createState() => _CreateActivityScreenState();
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}
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class _CreateActivityScreenState extends State<CreateActivityScreen> {
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final _titleController = TextEditingController();
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final _locationController = TextEditingController();
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final _descController = TextEditingController();
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String _selectedCategory = '太极';
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int _maxParticipants = 10;
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DateTime _selectedDate = DateTime.now().add(Duration(days: 1));
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TimeOfDay _selectedTime = TimeOfDay(hour: 9, minute: 0);
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void _submit() {
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if (_titleController.text.isEmpty || _locationController.text.isEmpty) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('请填写完整信息')),
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);
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return;
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}
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final activity = Activity(
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id: DateTime.now().toString(),
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title: _titleController.text,
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category: _selectedCategory,
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time: DateTime(
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_selectedDate.year,
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_selectedDate.month,
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_selectedDate.day,
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_selectedTime.hour,
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_selectedTime.minute,
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),
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location: _locationController.text,
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maxParticipants: _maxParticipants,
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creatorName: '我',
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description: _descController.text,
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);
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ActivityService.addActivity(activity);
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Navigator.pop(context);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('活动创建成功')),
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);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: Text('发起活动')),
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body: ListView(
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padding: EdgeInsets.all(16),
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children: [
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TextField(
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controller: _titleController,
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decoration: InputDecoration(
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labelText: '活动名称',
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border: OutlineInputBorder(),
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),
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),
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SizedBox(height: 16),
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DropdownButtonFormField<String>(
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value: _selectedCategory,
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decoration: InputDecoration(
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labelText: '活动类型',
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border: OutlineInputBorder(),
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),
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items: ActivityService.categories
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.skip(1)
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.map((c) => DropdownMenuItem(value: c, child: Text(c)))
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.toList(),
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onChanged: (val) => setState(() => _selectedCategory = val!),
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),
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SizedBox(height: 16),
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TextField(
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controller: _locationController,
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decoration: InputDecoration(
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labelText: '活动地点',
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border: OutlineInputBorder(),
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),
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),
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SizedBox(height: 16),
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ListTile(
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title: Text('人数限制'),
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trailing: DropdownButton<int>(
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value: _maxParticipants,
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items: [5, 8, 10, 12, 15]
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.map((n) => DropdownMenuItem(value: n, child: Text('$n 人')))
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.toList(),
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onChanged: (val) => setState(() => _maxParticipants = val!),
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),
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contentPadding: EdgeInsets.zero,
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),
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SizedBox(height: 16),
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TextField(
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controller: _descController,
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maxLines: 3,
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decoration: InputDecoration(
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labelText: '活动描述（选填）',
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border: OutlineInputBorder(),
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),
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),
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SizedBox(height: 40),
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SizedBox(
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height: 50,
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child: ElevatedButton(
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onPressed: _submit,
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style: ElevatedButton.styleFrom(
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backgroundColor: Color(0xFF333333),
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foregroundColor: Colors.white,
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),
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child: Text('发布活动', style: TextStyle(fontSize: 16)),
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),
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),
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],
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),
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);
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}
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}
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