Flutter40
'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;
}
}
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),
);
}
);
}
}
common_web_page.dart
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_webview_plugin/flutter_webview_plugin.dart';
import 'package:flutterapp2/constants/Constants.dart';
class CommonWebPage extends StatefulWidget {
final String title;
final String url;
//构造函数
CommonWebPage({Key key, this.title, this.url})
: assert(title != null),
assert(u
rl != null),
super(key: key);
@override
_CommonWebPageState createState() => _CommonWebPageState();
}
class _CommonWebPageState extends State<CommonWebPage> {
bool isLoading = true;
//展示 webview
FlutterWebviewPlugin _flutterWebviewPlugin = FlutterWebviewPlugin();
@override
void initState() {
// TODO: implement initState
super.initState();
//监听 url 变化
_flutterWebviewPlugin.onStateChanged.listen((state) {
if(state.type == WebViewState.finishLoad){
if (!mounted) return;
setState(() {
isLoading = false;
});
}else if(state.type == WebViewState.startLoad){
if (mounted) {
setState(() {
isLoading = true;
});
}
}
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