Reputation: 179
I'm not sure if I'm missing something. I'm playing around with Flutter and I want to build a (simple) view with some text widgets, buttons and other widgets (see picture below). These widgets should be followed by a list of items. The whole view (except the app bar, of course) should be scrollable - not only the items.
That's why I put everything inside a ListView. But I'm not able to do something like this (while items
is a map with String values):
...
home: Scaffold(
appBar: AppBar(
title: Text('App bar'),
),
body: new ListView(
children: <Widget>[
new Text('Some Text'),
new FlatButton(...),
new Image.asset(...),
items.map((item)=>new Padding(
child: new Text(item.title),
)).toList()
],
),
),
...
What is the right way to get the desired view?
Thanks in advance!
Upvotes: 7
Views: 12914
Reputation: 76
Try this
body: SingleChildScrollView( //add to Scroll whole screen
child: Column(
children: <Widget>[
new Text('Some Text'), //Element-1
new FlatButton(...), //Element-2
new Image.asset(...), //Element-3
items.map((item)=>new Padding(child: new Text(item.title),)).toList(), //Element-4
Expanded(child:ListView.separated( //Element-5
shrinkWrap: true, //this property is must when you put List/Grid View inside SingleChildScrollView
physics: NeverScrollableScrollPhysics(), //this property is must when you put List/Grid View inside SingleChildScrollView
itemCount: listItems.length,
itemBuilder: (context, i) {
return ListTile(
title: Text(listItems[i].Title),
subtitle: Text(listItems[i].Description),
);
},
separatorBuilder: (context, i) {
return Divider();
},
),
),
],
),
),
Upvotes: 0
Reputation: 1
Use a for loop
...
home: Scaffold(
appBar: AppBar(
title: Text('App bar'),
),
body: new ListView(
children: <Widget>[
new Text('Some Text'),
new FlatButton(...),
new Image.asset(...),
for (var i in items)
Padding(
child: new Text(i.title),
))
],
),
),
...
Upvotes: 0
Reputation: 531
You can do this by slivers, for fixed part use SliverToBoxAdapter and for scrolling list use SliverList. both fixed and list parts in page can easily scroll!!!
return CustomScrollView(
slivers: [
SliverToBoxAdapter(child: FixedHeader()),
SliverList(
delegate: SliverChildBuilderDelegate((context, index) {
YourListitems()
})
)]
)
Upvotes: 0
Reputation: 19514
You can use like this
ListView(
shrinkWrap: true,
children: <Widget>[
Text('hi'),//first widget
Text('hi2'),//second widget
Flex(
direction: Axis.horizontal,children: <Widget>[
Expanded(
child: ListView.builder(
shrinkWrap: true,
itemCount: 3,
itemBuilder: (BuildContext context, int index){
return ...
Or Just tweak the count and the index.
ListView.builder(
itemCount: get.length + 2, // add room for the two extra
itemBuilder: (BuildContext context, int index) {
if(index == 0){
return Text('Custom any widget');
}
if(index == 1){
return Text('Custom any widget');
}
index -= 2; // decrement index so that it's now in the range [0..length]
return Bubble(
style: styleSomebody,
child: Container(
...
));
}),
Upvotes: 6
Reputation: 10963
You could use ListView.builder
since is more efficient, because the items are only created when they're scrolled onto the screen. And in the first position you could put the widgets that aren't from the list, like this:
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('App bar')),
body: ListView.builder(
itemCount: items.length + 1,
itemBuilder: (context, index) {
if (index == 0) {
return Column(
children: <Widget>[
Text('Some Text'),
FlatButton(child: Text('A flat button'), onPressed: () {}),
Image.asset("An image"),
],
);
}
return Text('Item ${items[index].title}');
},
),
);
}
Upvotes: 7
Reputation: 1891
You may use the following code in the body
.
body: SingleChildScrollView( //add to Scroll whole screen
child: Column(
children: <Widget>[
new Text('Some Text'), //Element-1
new FlatButton(...), //Element-2
new Image.asset(...), //Element-3
items.map((item)=>new Padding(child: new Text(item.title),)).toList(), //Element-4
ListView.separated( //Element-5
shrinkWrap: true, //this property is must when you put List/Grid View inside SingleChildScrollView
physics: NeverScrollableScrollPhysics(), //this property is must when you put List/Grid View inside SingleChildScrollView
itemCount: listItems.length,
itemBuilder: (context, i) {
return ListTile(
title: Text(listItems[i].Title),
subtitle: Text(listItems[i].Description),
);
},
separatorBuilder: (context, i) {
return Divider();
},
),
],
),
),
Upvotes: 3
Reputation: 3315
Children in ListView are list of itens, so, if you want to display a button or text, your widget tree is:
Scaffold
appBar: AppBar
body: Container
child: ListView
ListItem
ListItem
ListItem
Then, in your case, you can use a Column to display "fixed widget" (text, button) + listview scrollable:
Scaffold
appBar: AppBar
body: Column
[
Text,
Buttom,
ListView
ListItem
ListItem
ListItem
]
Upvotes: -2