I would like to create a list of cards each with a button that displays a menu (edit, delete ...) but I don't know where to start or which widget to use. There is also the problem that each button must respond individually.
I use Hive for my card data
Do you know how to do it ?
Align(
alignment: Alignment.centerRight,
child: SizedBox(
width: 4.29,
height: 16,
child: SvgPicture.asset('assets/Icones/IconesNewDesign/edit.svg', width: 4.29, height: 16,fit: BoxFit.scaleDown,
),
),
Edit:
I need something like this
first you need to take listviewbuilder and then take card inside it and you can also take icons of delte and edit in card
ListView.builder(
itemcount;2,
itembuilder(context,index)
{
retun Card(
child:Column(
childern[
Image.Asset(""),
Row(
childern[
Icon(Icons.delte),
Spacer(),
Icon(Icons.edit),
]
)
]
)
)
)
You could use ListTiles with PopupMenuButtons
final List<String> _cards = ["One", "Two", "Three", "Four", "Five"];
ListView.builder(
itemCount: _cards.length,
itemBuilder: (context, index) => Card(
elevation: 5,
child: ListTile(
title: Text(_cards[index]),
trailing: PopupMenuButton(
itemBuilder: (ctx) => [
PopupMenuItem(child: Text("Delete")),
PopupMenuItem(child: Text("Edit")),
],
),
),
),
)
Related
I want to achieve UI like Windows File Explorer
windows file explorer
Build one list as start and inside it a list of items and the item contains a title and a list of items
The image you attached looks like it could be replicated with a ListView.builder returning an ExpansionTile containing a GridView.
SizedBox(
height: 40,
width: 300,
child: ListView.builder(
itemBuilder: (context, index) {
return ExpansionTile(
title: const Text('title'),
children: [
SizedBox(
height: 100,
width: 200,
child: GridView.count(
crossAxisCount: 3,
children: List.generate(
3,
(index) {
return SizedBox(
height: MediaQuery.of(context).size.height / 1.8,
child: const Icon(Icons.folder),
);
},
),
),
),
],
);
},
),
);
This builds several expansion tiles each containing 3 folder icons. You may consider adding a little bit more to your question as it is a little vague, but I hope this helps!
staff.ulogin is a list returned from a web service. If there is more than one item returned, I need to display of list of those items (displaying the company name). I can get the first item displaying, but I'm not sure how to display the entire list.
I also need the user to be able to tap an item so I can setup that company for use, so I'll need to know what item they chose. Thanks for any help.
if (staff.ulogin.length > 1) {
Alert(
context: context,
title: 'Choose Company',
content: Container(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
//how to display all the items
ListTile(
title: Text(staff.ulogin[0].company),
onTap () {}, // <--- how to get the index of the item tapped
),
],
),
),
buttons: [
DialogButton(
child: Text('Cancel', style: TextStyle(color: Colors.white, fontSize: 20)),
color: kMainColor,
onPressed: () {
Navigator.of(context).pop();
},
),
],
).show();
} else
I believe that the correct way of display a list o items is using a ListView. For this case you can use a ListView.builder like this:
Container(
height: 300.0, // Change as you wish
width: 300.0, // Change as you wish
child: ListView.builder
(
itemCount: staff.ulogin.length,
itemBuilder: (context, index) {
return ListTile(
title: Text(staff.ulogin[index].company),
onTap () {
someFunction(staff.ulogin[index]);
},
),
}
)
)
I am trying to create an app with a scroll view and the objects are clickable like the google news app. Can anyone answer how to animate the container to have a white glow on holding the tile?
Here is the list view builder I have for the app
Container(
padding: EdgeInsets.only(top: 16),
child: ListView.builder(
physics: ClampingScrollPhysics(),
itemCount: article.length,
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemBuilder: (context, index) {
return news_tile(
imageurl: article[index].urlToimage,
news_title: article[index].title,
news_desc: article[index].description,
web_url: article[index].url
);
}),
)
and this is the contents of the tile which the list view builder calls
class news_tile extends StatelessWidget {
String imageurl, news_title, news_desc,web_url;
news_tile({this.imageurl, this.news_title, this.news_desc,this.web_url});
Widget build(BuildContext context) {
return GestureDetector(
onTap: (){
Navigator.push(context, MaterialPageRoute(
builder: (context) => article_view(
web_url: web_url,
)
));
},
child: Container(
margin: EdgeInsets.only(bottom: 16),
child: Column(
children: <Widget>[
ClipRRect(borderRadius: BorderRadius.circular(6), child: Image.network(imageurl)),
SizedBox(
height: 8,
),
Text(news_title, style: TextStyle(fontSize: 17,fontWeight: FontWeight.w600)),
SizedBox(
height: 8,
),
Text(news_desc, style: TextStyle(color: Colors.black54))
],
),
),
);
}
}
You could go with the InkWell Widget. It provides a tapping/holding color effect similar to that. Have a look at the official docs here:
https://api.flutter.dev/flutter/material/InkWell-class.html
Note that you need a Material Widget as an ancestor of your InkWell, but the docs explain that more.
Hope it works for you!
Edit: Sorry, since you are working with a Container, Ink is also important for you:
https://api.flutter.dev/flutter/material/Ink-class.html
Check the docs section "The ink splashes aren't visible!" for why that is.
Click Here for Image! Click here to see error when i input 'itemCount' I want to ask, I am having trouble using the List.builder () feature. where I can't limit the data contained in the list so that it will display an error message about the error range. Here is the source code that I gave.
_sort = <Sort>[
Sort(
category: 'By Games',
item: new Container(
height: 200,
child: new Container(
child: ListView.builder(
scrollDirection: Axis.vertical,
//itemCount: allGames['games'].length,
itemBuilder: (context, index) {
return Container(
child: Padding(
padding: const EdgeInsets.all(15),
child: Text(allGames['games'][index]['game_title'].toString(), style: new TextStyle(color: Colors.white)),
),
);
},
)))),
and here i call the 'Category' and 'Item'. I wrap it in a wrap widget. then for categories, I did divide it into 3 parts. then every part in the category I named 'items' and the problem is the items here have excess capacity so that the data displayed is leftover and not on target.
child: Wrap(
children: <Widget>[
ListView.builder(
shrinkWrap: true,
itemCount: 3,
itemBuilder: (context, index) {
context = context;
if (index < 2) {
final sort = _sort[index];
return ExpansionTile(
title: ListTile(
title: Text(
sort.category,
style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
),
),
children: <Widget>[
ListTile(
title: sort.item,
)
],
);
} else {
),
You're accessing allGames["games"] and it says that you're trying to use [] on null.
Seems like allGames is null, so put an eye on that.
Other than that, your use of itemCount is fine!
You can add some null awareness by doing something like this:
itemCount = allGames != null ? (allGames["games"]?.length ?? 0) : 0
I think when the build method runs at the first time, your allGames is null. So, try to add a default value, for example:
itemCount: allGames['games'].length ?? 0
AlertCardWidget is a widget that i wrote. I return it in itemBuilder but nothing shown. Here is my code:
Flexible(
child: Padding(
child: SingleChildScrollView(
child: ListView.builder(
itemCount: state.data.length,
itemBuilder: (BuildContext context, int index) {
state.data["datas"].map<Widget>((f) {
return AlertCardWidget(
positionId: "${f["8020074"]}",
shipowner: "${f["8020076"]}",
customer: "${f["8020170"]}",
salesRepresenter: "${f["8020176"]}",
operationRepresenter: "${f["8020177"]}",
textContentFontColor:
AppTheme(Theme.of(context).brightness)
.cardFontBackgroundColor,
textfont: Colors.redAccent,
);
}).toList();
},
),
),
),
),
No error to show.
I have items that why I use ListView. The problom of using Listview instead ListView.builder is taking "Vertical viewport was given unbounded height error". The problem has solved when writing Listview like child of Expanded widget. Here is my code:
Expanded(
child: Padding(
padding: const EdgeInsets.all(4.0),
child: ListView(
children: state.data["datas"].map<Widget>((f) => AlertCardWidget(positionId: "${f["8020074"]}",
shipowner: "${f["8020076"]}",
customer: "${f["8020170"]}",
salesRepresenter: "${f["8020176"]}",
operationRepresenter: "${f["8020177"]}",
textContentFontColor: AppTheme(Theme.of(context).brightness).cardFontBackgroundColor,
textfont: Colors.redAccent,)).toList(),
),
),
),
Maybe a silly question, but why are you mapping a list into a ListView.builder?
Have you tried using the index for each iteration instead?
Because what I understand from that code is that every ["datas"] item you've got will generate the whole list for as many times as state.data.length has.
Maybe try this out:
Flexible(
child: Padding(
child: SingleChildScrollView(
child: ListView.builder(
itemCount: state.data.length,
itemBuilder: (BuildContext context, int index) {
return AlertCardWidget(
positionId: state.data[index]["datas"]["8020074"],
shipowner: state.data[index]["datas"]["8020076"],
customer: state.data[index]["datas"]["8020170"],
salesRepresenter: state.data[index]["datas"]["8020176"],
operationRepresenter: state.data[index]["datas"]["8020177"],
textContentFontColor:
AppTheme(Theme.of(context).brightness)
.cardFontBackgroundColor,
textfont: Colors.redAccent,
);
},
),
),
),
),
If that doesn't work, would you mind showing us which data are you trying to retrieve?
Your itemBuilder function does not return a value.
Edit: It should return a single Widget for every entry in your list.
Something like this should work.
Also, Padding Widget is missing the padding property.
Flexible(
child: Padding(
child: SingleChildScrollView(
child: ListView.builder(
itemCount: state.data.length,
itemBuilder: (BuildContext context, int index) {
final f = state.data[index];
return AlertCardWidget(
positionId: "${f["8020074"]}",
shipowner: "${f["8020076"]}",
customer: "${f["8020170"]}",
salesRepresenter: "${f["8020176"]}",
operationRepresenter: "${f["8020177"]}",
textContentFontColor:
AppTheme(Theme.of(context).brightness)
.cardFontBackgroundColor,
textfont: Colors.redAccent,
);
},
),
),
),
),