383462ef
 吴启风
feat: 新增视频专区列表与播放功能
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:wow_english/common/dialogs/show_dialog.dart';
import 'package:wow_english/common/request/dao/video_dao.dart';
import 'package:wow_english/common/widgets/we_app_bar.dart';
import 'package:wow_english/route/route.dart';
import 'video_zone_item.dart';
class VideoZonePage extends StatefulWidget {
const VideoZonePage({super.key});
@override
State<VideoZonePage> createState() => _VideoZonePageState();
}
class _VideoZonePageState extends State<VideoZonePage> {
late Future<List<VideoZoneItem>> _itemsFuture;
@override
void initState() {
super.initState();
_itemsFuture = VideoDao.list();
}
void _reload() {
setState(() => _itemsFuture = VideoDao.list());
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
appBar: const WEAppBar(
titleText: '视频专区',
centerTitle: false,
),
body: FutureBuilder<List<VideoZoneItem>>(
future: _itemsFuture,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(child: CircularProgressIndicator());
}
if (snapshot.hasError) {
return _VideoLoadError(onRetry: _reload);
}
final items = snapshot.data ?? const <VideoZoneItem>[];
if (items.isEmpty) {
return const Center(
child: Text(
'暂无视频',
style: TextStyle(color: Color(0xFF999999), fontSize: 18),
),
);
}
return RefreshIndicator(
onRefresh: () async {
final future = VideoDao.list();
setState(() => _itemsFuture = future);
await future;
},
child: GridView.builder(
physics: const AlwaysScrollableScrollPhysics(),
padding: EdgeInsets.fromLTRB(14.w, 10.h, 14.w, 16.h),
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 4,
mainAxisSpacing: 14.h,
crossAxisSpacing: 12.w,
childAspectRatio: 1.55,
),
itemCount: items.length,
itemBuilder: (context, index) => _VideoCard(
item: items[index],
onTap: () => _openVideo(items, index),
),
),
);
},
),
);
}
void _openVideo(List<VideoZoneItem> items, int index) {
final item = items[index];
if (!item.accessible || item.videoUrl.isEmpty) {
showTwoActionDialog('提示', '取消', '去购买', '购买课程后即可观看视频。', leftTap: popPage,
rightTap: () {
popPage();
pushNamed(AppRouteName.shop);
});
return;
}
Navigator.of(context).pushNamed(
AppRouteName.videoZonePlayer,
arguments: {
'items': items
.where((video) => video.accessible && video.videoUrl.isNotEmpty)
.toList(),
'initialVideoId': item.id,
},
).then((_) => _reload());
}
}
class _VideoLoadError extends StatelessWidget {
const _VideoLoadError({required this.onRetry});
final VoidCallback onRetry;
@override
Widget build(BuildContext context) {
return Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const Text(
'视频加载失败，请稍后重试',
style: TextStyle(color: Color(0xFF999999), fontSize: 18),
),
const SizedBox(height: 12),
FilledButton(onPressed: onRetry, child: const Text('重新加载')),
],
),
);
}
}
class _VideoCard extends StatelessWidget {
const _VideoCard({required this.item, required this.onTap});
final VideoZoneItem item;
final VoidCallback onTap;
@override
Widget build(BuildContext context) {
return InkWell(
borderRadius: BorderRadius.circular(8.r),
onTap: onTap,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
child: ClipRRect(
borderRadius: BorderRadius.circular(8.r),
child: Stack(
fit: StackFit.expand,
children: [
CachedNetworkImage(
imageUrl: item.coverUrl,
fit: BoxFit.cover,
placeholder: (_, __) => const ColoredBox(
color: Color(0xFFF2F2F2),
child: Center(child: CircularProgressIndicator()),
),
errorWidget: (_, __, ___) => const ColoredBox(
color: Color(0xFFF2F2F2),
child: Icon(Icons.broken_image_outlined,
color: Color(0xFFAAAAAA)),
),
),
const Center(
child: Icon(Icons.play_circle_fill,
size: 42, color: Colors.white),
),
],
),
),
),
SizedBox(height: 5.h),
Text(
item.title,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: const Color(0xFF222222),
fontFamily: null,
fontSize: 17.sp,
fontWeight: FontWeight.w500,
),
),
],
),
);
}
}
|
