Flutter41，2021新一波程序员跳槽季
作者：互联网
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(‘摇一摇’),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Image.asset(
‘assets/images/shake.png’,
width:120.0,
height: 120.0,
),
SizedBox(
height: 10.0,
),
Text(isShaked?‘活动结束’:‘摇一摇获取礼品’),
],
),
),
//底层的导航栏，2个导航栏
bottomNavigationBar: BottomNavigationBar(
//2个条目
items: [
BottomNavigationBarItem(icon: Icon(Icons.folder), title: Text(‘礼品’)),
BottomNavigationBarItem(
icon: Icon(Icons.assignment), title: Text(‘资讯’))
],
currentIndex: _curentIndex,
onTap: (index) {
if (!mounted) return;
setState(() {
_curentIndex = index;
});
},
),
);
}
}
discovery_page.dart
import ‘package:barcode_scan/barcode_scan.dart’;
import ‘package:flutter/material.dart’;
import ‘package:flutterapp2/pages/shake_page.dart’;
import ‘common_web_page.dart’;
/**
- 主界面find
*/
class DiscoveryPage extends StatefulWidget {
@override
_DiscoveryPageState createState() => _DiscoveryPageState();
}
class _DiscoveryPageState extends State {
List<Map<String, IconData>> blocks = [
{
‘开源众包’: Icons.pageview,
‘开源软件’: Icons.speaker_notes_off,
‘码云推荐’: Icons.screen_share,
‘代码骗贷’: Icons.assignment,
},
{
‘扫一扫’: Icons.camera_alt,
‘摇一摇’: Icons.camera,
},
{
‘码云封面人物’: Icons.person,
‘线下活动’: Icons.android,
}
];
void _handleItemClick(String title) {
switch (title) {
case ‘开源众包’:
_navToWebPage(title, ‘https://zb.oschina.net/’);
break;
case ‘扫一扫’:
scan();
break;
case ‘摇一摇’:
Navigator.of(context)
.push(MaterialPageRoute(builder: (context) => ShakePage()));
break;
}
}
Future scan() async {
String barcode = await BarcodeScanner.scan();
print(“Debug barcode==” + barcode);
}
void _navToWebPage(String title, String url) {
if (title != null && url != null) {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => CommonWebPage(
title: title,
url: url,
)));
}
}
@override
Widget build(BuildContext context) {
return ListView.builder(
itemCount: blocks.length,
itemBuilder: (context, bolockIndex) {
return Container(
margin: const EdgeInsets.symmetric(vertical: 10.0),
//线条边框设置
decoration: BoxDecoration(
border: Border(
top: BorderSide(
width: 1.0,
color: Color(0xffaaaaaa),
),
bottom: BorderSide(
width: 1.0,
color: Color(0xffaaaaaa),
),
),
),
//listview嵌套，自带分割线。3个子模块
child: ListView.separated(
physics: NeverScrollableScrollPhysics(),//滑动冲突
shrinkWrap: true,//显示完全
itemBuilder: (context, mapIndex) {
//InkWell有点击效果
return InkWell(
//点击事件
onTap: (){
_handleItemClick(
blocks[bolockIndex].keys.elementAt(mapIndex));
},
//listview单个条目的布局
child: Container(
height: 60.0,
child: ListTile(
leading: Icon(
blocks[bolockIndex].values.elementAt(mapIndex)),
title:
Text(blocks[bolockIndex].keys.elementAt(mapIndex)),
trailing: Icon(Icons.arrow_forward_ios),
),
),
);
},
//子listview的分隔线
separatorBuilder: (context, mapIndex) {
return Divider(
height: 2.0,
color: Color(0xffff0000),
);
},
/
/子listview的数量是各个block的
itemCount: blocks[bolockIndex].length),
);
}
);
}
}
ling: Icon(Icons.arrow_forward_ios),
),
),
);
},
//子listview的分隔线
separatorBuilder: (context, mapIndex) {
return Divider(
height: 2.0,
color: Color(0xffff0000),
);
},
/[外链图片转存中…(img-d8HZiYLk-1642654597227)]
/子listview的数量是各个block的
itemCount: blocks[bolockIndex].length),
);
}
);
}
}
标签：bolockIndex,return,Flutter41,title,Icons,新一波,2021,context,blocks 来源： https://blog.csdn.net/m0_66264533/article/details/122599211