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I am designed very heavy nested design like below, the issue when my list expands the listview doesn't seems to be scrolling what is the reason for this, the bottomsheet gets expanded but there is no focus on listview inside it, if i scrolls by touching the 'Operational Hours' text it starts scrolling but when it goes upwards i can't slide it down.
_showDialog(BuildContext context) {
print("_showDialog");
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (BuildContext context) {
return DraggableScrollableSheet(
expand: false,
builder: (context, scrollController) {
return Container(
child: Stack(
children: <Widget>[
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Align(
alignment: Alignment.topCenter,
child: Container(
margin: EdgeInsets.symmetric(vertical: 8),
height: 8.0,
width: 70.0,
decoration: BoxDecoration(
color: Colors.grey[400],
borderRadius: BorderRadius.circular(10.0)))),
SizedBox(height: 16),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Text('Operational Hours',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: widget.isTab(context)
? TabTextStyles.mediumText
.copyWith()
.fontSize
: PhoneTextStyles.mediumText
.copyWith()
.fontSize)),
),
],
),
ListView(
controller: scrollController,
children: <Widget>[
SizedBox(height: 54.0),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(height: 20.0),
Text('Select days to add hours',
style: widget.isTab(context)
? TabTextStyles.mediumText.copyWith()
: PhoneTextStyles.mediumText.copyWith()),
]),
),
DaysList()
],
),
],
),
decoration: BoxDecoration(
shape: BoxShape.rectangle,
color: Theme.of(context).backgroundColor,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(24.0),
topRight: Radius.circular(24.0),
),
),
);
},
);
},
);
}
367
A scroll controller creates a [ScrollPosition] to manage the state-specific to an individual [Scrollable] widget. To use a custom [ScrollPosition], subclass [ScrollController] and override [createScrollPosition]. A [ScrollController] is a [Listenable].
These are the method that allows you to make any column scrollable in a flutter. The first method is using the flutter column widget but the second method is using the Flutter Listview. The second one allows you to make children vertically as well as horizontally scrollable.
Flutter has a widget called DraggableScrollableSheet. It's described as a container for a Scrollable that responds to drag gestures by resizing the scrollable until a limit is reached, and then scrolling. In this tutorial, you'll see some examples of how to use the widget.
This is a tutorial of how to use Flutter's DraggableScrollableSheet widget. Flutter has a widget called DraggableScrollableSheet. It's described as a container for a Scrollable that responds to drag gestures by resizing the scrollable until a limit is reached, and then scrolling. In this tutorial, you'll see some examples of how to use the widget.
This widget can be dragged along the vertical axis providing a scrolling effect. DraggableScrollableSheet class is basically a widget that looks like a sheet that drags down from the bottom and expands in a vertical direction.
It looks like a sheet that is built in a bottom but actually, it can be dragged and scrolled up to a certain limit. This widget can be dragged along the vertical axis providing a scrolling effect.
Screenshot:
Call this method:
void showMyBottomSheet(BuildContext context) {
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (_) {
return DraggableScrollableSheet(
maxChildSize: 0.8,
expand: false,
builder: (_, controller) {
return Column(
children: [
Container(
width: 100,
height: 8,
margin: EdgeInsets.symmetric(vertical: 10),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(20),
color: Colors.grey,
),
),
Expanded(
child: ListView.builder(
controller: controller,
itemCount: 100,
itemBuilder: (_, i) => ListTile(title: Text('Item $i')),
),
),
],
);
},
);
},
);
}
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