ListView中的ExpansionTile-页面不滚动 [英] ExpansionTile inside ListView - page not scrolling
问题描述
我面临页面滚动问题.我正在显示每天分组的用户交易. 因此ExpansionTile中将包含多个项目.
I am facing issue with page scrolling. I am showing users transactions grouped per day. so there will be multiple items inside ExpansionTile.
我首先要从数据库中提取几天,然后要在当天完成交易. 所以下面是我的页面的工作方式
I am first taking days from database and then taking transactions done on that day . so below is how my page working
- 获取所有记录
- 获取天数并放入一个列表(天数列表)
- 在此列表(天列表)中加载带有for循环的主扩展图块
- 当我们进行循环时,当天进行交易并加载到另一个数组中
- 将子级绑定为ExpansionTile的子级.
我的视图加载正确,但是当我打开ExpansionTile的子项时,我无法滚动页面.请查看视频以更清楚地了解. https://drive.google.com/file/d/1EVETVRHx0vZqiGryrcxUR0klrEX8Y63G/view?usp = sharing
My view is loading properly , but when i open subitems of ExpansionTile , i am not able to scroll page. please check video for more clear understanding. https://drive.google.com/file/d/1EVETVRHx0vZqiGryrcxUR0klrEX8Y63G/view?usp=sharing
我的代码如下,
Widget build(BuildContext context) {
return new Scaffold(
body: FutureBuilder(
future: getTransactions(),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Center(child: CircularProgressIndicator());
} else if (feedItemsParent.isEmpty) {
return noRecordsDialogue(context, 'No transactions record', '');
} else if (feedItemsParent.length == 0) {
return noRecordsDialogue(context, 'No transactions record', '');
} else {
return new ListView.builder(
shrinkWrap: true,
itemCount: feedItemsParent.length,
itemBuilder: (BuildContext ctxt, int index) =>
buildBody(ctxt, index));
}
},
),
);
}
下面是buildBody函数.
below is buildBody function.
Widget buildBody(BuildContext ctxt, int index) {
return new custom.ExpansionTile(
initiallyExpanded: true,
trailing: new Container(width: 20),
headerBackgroundColor: Color(0xFFeff0f1),
title: Text(
feedItemsParent[index].transactiondatesmall.toString(),
style: TextStyle(
fontSize: 16,
color: Colors.black,
fontWeight: FontWeight.bold,
),
),
children: <Widget>[
buildTransactionList(
feedItemsParent[index].transactiondatesmall.toString()),
],
);
}
下面是我如何带所有孩子并将其绑定到ExpansionTile中的方法.
below is how i am taking all children and binding them inside ExpansionTile.
buildTransactionList(dtCompare) {
if (feedItems.length == 0) {
return noRecordsDialogue(context, 'No transactions record', '');
} else {
List<UserTransaction> feedItemsChild = [];
for (int j = 0; j < feedItems.length; j++) {
if (feedItems[j].transactiondatesmall == dtCompare) {
feedItemsChild.add(feedItems[j]);
}
}
return ListView(
padding: const EdgeInsets.only(bottom: 16.0),
shrinkWrap: true,
children: feedItemsChild,
);
}
}
谢谢.
推荐答案
最后,我可以使用下面的链接给出的答案来解决这个问题.根据我的要求更改了我的代码,因为我的要求是80%相似.
Finally i am able to solve this using answers given in below link. Changed my code as per given in answer as my requirement was 80% similar.
谢谢.
这篇关于ListView中的ExpansionTile-页面不滚动的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!