Can anyone help me with this exception that I keep running into? I am not sure what attempt next in order to fix the overflow as the panel expands. I've tried wrapping it into a flexible widget but that doesn't seem to fix the issue.
Here is my exception:
════════ Exception caught by rendering library ═════════════════════════════════════════════════════
The following assertion was thrown during layout:
A RenderFlex overflowed by 68 pixels on the bottom.
The relevant error-causing widget was:
Column file:///Users/selorm/AndroidStudioProjects/flutter_master/lib/src/widgets/weather_widget.dart:17:14
The overflowing RenderFlex has an orientation of Axis.vertical.
The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView.
The specific RenderFlex in question is: RenderFlex#8829e relayoutBoundary=up1 OVERFLOWING
... needs compositing
... parentData: offset=Offset(0.0, 0.0) (can use size)
... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=410.6)
... size: Size(411.4, 410.6)
... direction: vertical
... mainAxisAlignment: center
... mainAxisSize: max
... crossAxisAlignment: center
... verticalDirection: down
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════════════════════════════════════════════════════════════════════════════════════════════════════
Here is my code:
#override
Widget build(BuildContext context) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Flexible(
//flex: 2,
//fit: FlexFit.loose,
child: Text(
this.weather.cityName.toUpperCase(),
style: TextStyle(
fontWeight: FontWeight.w900,
letterSpacing: 5,
color: AppStateContainer.of(context).theme.accentColor,
fontSize: 25),
),
),
SizedBox(
height: 20,
),
Flexible(
//flex: 1,
child:Text(
this.weather.description.toUpperCase(),
style: TextStyle(
fontWeight: FontWeight.w100,
letterSpacing: 5,
fontSize: 20,
color: AppStateContainer.of(context).theme.accentColor),
),
),
WeatherSwipePager(weather: weather),
Padding(
child: Divider(
color:
AppStateContainer.of(context).theme.accentColor.withAlpha(50),
),
padding: EdgeInsets.all(10),
),
ForecastHorizontal(weathers: weather.forecast),
Padding(
child: Divider(
color:
AppStateContainer.of(context).theme.accentColor.withAlpha(50),
),
padding: EdgeInsets.all(10),
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
ValueTile("wind speed", '${this.weather.windSpeed} m/s'),
Padding(
padding: const EdgeInsets.only(left: 15, right: 15),
child: Center(
child: Container(
width: 1,
height: 30,
color: AppStateContainer.of(context)
.theme
.accentColor
.withAlpha(50),
)),
),
ValueTile(
"sunrise",
DateFormat('h:m a').format(DateTime.fromMillisecondsSinceEpoch(
this.weather.sunrise * 1000))),
Padding(
padding: const EdgeInsets.only(left: 15, right: 15),
child: Center(
child: Container(
width: 1,
height: 30,
color: AppStateContainer.of(context)
.theme
.accentColor
.withAlpha(50),
)),
),
ValueTile(
"sunset",
DateFormat('h:m a').format(DateTime.fromMillisecondsSinceEpoch(
this.weather.sunset * 1000))),
Padding(
padding: const EdgeInsets.only(left: 15, right: 15),
child: Center(
child: Container(
width: 1,
height: 30,
color: AppStateContainer.of(context)
.theme
.accentColor
.withAlpha(50),
)),
),
ValueTile("humidity", '${this.weather.humidity}%'),
]
),
],
),
);
}
}
You have to two quick options:
use ListView() with shrinkWrap set to true
#override
Widget build(BuildContext context) {
return ListView(
shrinkWrap: true,
children: <Widget>[
// Children
],
);
}
wrap Column() with singleChildScrollView()
#override
Widget build(BuildContext context) {
return SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
// Children
],
),
);
}
That's it
Related
======== Exception caught by rendering library =====================================================
The following assertion was thrown during layout:
A RenderFlex overflowed by 71 pixels on the right.
The relevant error-causing widget was:
Row Row:file:///Users/ddo/Desktop/projects/yedek/deneme_kaynak/lib/views/screens/category/screens/first_screen.dart:82:40
The overflowing RenderFlex has an orientation of Axis.horizontal.
The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView.
The specific RenderFlex in question is: RenderFlex#37132 relayoutBoundary=up13 OVERFLOWING
... parentData: offset=Offset(12.0, 20.0) (can use size)
... constraints: BoxConstraints(w=134.6, 0.0<=h<=Infinity)
... size: Size(134.6, 36.0)
... direction: horizontal
... mainAxisAlignment: center
... mainAxisSize: max
... crossAxisAlignment: center
... textDirection: ltr
... verticalDirection: down
◢◤◢◤◢◤
Widget build(BuildContext context) {
List<Category> childs = widget.snapshot.data.allCategories
.where((element) => element.parentId == widget.id)
.toList();
return Positioned(
left: MediaQuery.of(context).size.width * .2,
child: Container(
width: MediaQuery.of(context).size.width * .8,
height: MediaQuery.of(context).size.height,
child: Column(
children: [
childs.length != 0
? Container(
width: MediaQuery.of(context).size.width * .8,
height: MediaQuery.of(context).size.height,
child: MasonryGridView.count(
cacheExtent: 4,
padding: EdgeInsets.fromLTRB(0, 0, 0, 250),
crossAxisCount: 2,
//mainAxisSpacing: 2,
//crossAxisSpacing: 2,
itemCount: childs.length + 1,
itemBuilder: (context, int) => int == 0
? Card(
margin: EdgeInsets.fromLTRB(3, 3, 3, 1),
child: Container(
decoration: BoxDecoration(
gradient: LinearGradient(colors: [
gradientFrom[3],
gradientTo[3],
])),
child: Padding(
padding:
const EdgeInsets.symmetric(vertical: 20, horizontal: 12),
/*
> > > > > ROW < < < < <
//first_screen.dart:82:40 Row
*/
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
/*Padding(
padding:
const EdgeInsets.all(0.0),
child: Image.asset(
"assets/images/welding.png",
width: MediaQuery.of(context)
.size
.width *
.14,
),
),*/
Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.end,
children: [
Container(
width: MediaQuery.of(context).size.width * .5,
child: Text(widget.category,
textScaleFactor: 1,
overflow: TextOverflow.clip,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w700,
fontSize: 15.0)),
),
/* Text('see_all'.tr(),textScaleFactor: 1,
style: TextStyle(
color: Colors.white70,
fontSize: 10)),*/
],
),
/* Icon(
Icons.chevron_right,
color: Colors.white,
)*/
]),
),
),
)
: Column(
children: [
int == 1 ? SizedBox(height: 75,): SizedBox(),
InkWell(
onTap: () {
gotoSuborProd(widget.snapshot, int, childs);
},
child: Card(
margin: EdgeInsets.fromLTRB(3, 2, 3, 2),
child: Container(
decoration: BoxDecoration(
color: Colors.white,
border:
Border.all(color: gradientFrom1[int % 5], width: 5)
/*gradient: LinearGradient(colors: [
gradientFrom[int % 5],
gradientTo[int % 5],
])*/
),
child: Padding(
padding:
const EdgeInsets.symmetric(vertical: 20, horizontal: 3),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
imageGet(Uri.encodeComponent(
childs[int - 1].imageUrl ?? "")),
Padding(padding: EdgeInsets.only(bottom: 16.0)),
Text(childs[int - 1].category,
textScaleFactor: 1,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.w700,
fontSize: 14.0)),
/*Text(
childs[int-1].seoTitle.toString(),textScaleFactor: 1,
style: TextStyle(
color: Colors.white70,
fontSize: 12.0)),*/
]),
),
),
),
),
],
)
// ignore: missing_return
),
)
: Container(),
],
),
));
}
Wrap your Column with Expanded widget, this will solve BoxConstraints(w=134.6, 0.0<=h<=Infinity
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 20, horizontal: 12),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Expanded( //here
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.end,
children: [
move your title Widget to top of the Column like shown in screenshot:
The error occurs in a screen where I am trying to render a list of contributions. I have tried a number of things (listed below), none of which works.
Wrapping my column widget with Expanded()
Wrapping my Column widget with Flexible()
Wrapping my Listview.builder() with SingleScrollView() then adding physics: NeverScrollableScrollPhysics() in it.enter image description here
I have a contributions screen with contains a Lisview.builder()
This is my contributions screen
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('My Chamas'),
centerTitle: true,
),
floatingActionButton: CustomFloatingActionButton(
buttonLabel: 'Contribute +',
),
resizeToAvoidBottomInset: false,
body: Column(
children: <Widget>[
Container(
height: MediaQuery.of(context).size.height * 0.22,
margin: EdgeInsets.only(top: 20),
child: PageView.builder(
itemCount: widget.availableChamas.length, // number of cards
controller: PageController(viewportFraction: 0.8),
onPageChanged: (int index) => setState(() => _index = index),
/*** Begin snapping chama cards */
itemBuilder: (_, i) {
return Transform.scale(
scale: i == _index ? 1 : 0.9,
child: Card(
elevation: 6,
margin: EdgeInsets.only(right: 0),
color: Theme.of(context).primaryColor, // Card backgound color
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(25)),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(25),
gradient: LinearGradient(
begin: Alignment.topRight,
end: Alignment.bottomLeft,
stops: [0.1, 0.9],
colors: [Colors.indigo, Colors.teal],
),
),
child: ChamaCard(
id: widget.availableChamas[i].id,
name: widget.availableChamas[i].name,
totalMembers: widget.availableChamas[i].totalMembers,
totalContributions: widget.availableChamas[i].totalContributions,
),
),
),
);
/*** End snapping chama cards */
},
),
),
SizedBox(height: 15),
Container(
padding: EdgeInsets.only(right: 15, left: 15),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.end,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text(
'All my chamas',
style: TextStyle(fontSize: 15, color: Colors.red[900]),
),
Icon(
Icons.arrow_forward,
size: 17,
color: Colors.red[900],
)
],
),
SizedBox(height: 15),
Row(
children: <Widget>[
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text('My', style: TextStyle(fontWeight: FontWeight.bold, fontSize: 20)),
Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
Text(
'Contributions',
style: TextStyle(fontWeight: FontWeight.bold, fontSize: 20),
),
SizedBox(width: 5),
Text(
'to this chama',
style: TextStyle(color: Colors.green[800]),
)
],
),
],
)
],
),
SizedBox(height: 10),
ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
physics: NeverScrollableScrollPhysics(),
itemBuilder: (context, index) {
return ChamaListItem(
id: widget.availableContributions[index].id,
amount: widget.availableContributions[index].amount,
contributionDate: widget.availableContributions[index].contributionDate,
);
},
itemCount: widget.availableContributions.length,
),
],
),
)
],
),
);
}
This is my ChamaListItem widget which simply holds a single contribution card. This is what I am iterating to build a scrollable list in my Listview.builder()
Widget build(BuildContext context) {
return Card(
elevation: 4,
shadowColor: Color.fromRGBO(255, 255, 255, 0.5),
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(15)),
child: Padding(
padding: const EdgeInsets.all(20.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
'Date',
style: TextStyle(fontWeight: FontWeight.bold),
),
SizedBox(height: 5),
Text(
'$contributionDate',
style: TextStyle(color: Colors.red[900]),
)
],
),
Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
Text('Kes'),
SizedBox(width: 1),
Text(
'$amount',
style: TextStyle(fontWeight: FontWeight.bold, fontSize: 30),
),
],
)
],
),
),
);
}
This is the error thrown in the console
Performing hot reload...
Syncing files to device sdk gphone x86 arm...
Reloaded 5 of 566 libraries in 1,183ms.
======== Exception caught by rendering library =====================================================
The following assertion was thrown during layout:
A RenderFlex overflowed by 283 pixels on the bottom.
The relevant error-causing widget was:
Column file:///Users/Steve/StudioProjects/m_chama/lib/screens/myChamas.dart:35:13
The overflowing RenderFlex has an orientation of Axis.vertical.
The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView.
The specific RenderFlex in question is: RenderFlex#3a382 relayoutBoundary=up1 OVERFLOWING
... needs compositing
... parentData: offset=Offset(0.0, 105.5); id=_ScaffoldSlot.body (can use size)
... constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=697.5)
... size: Size(392.7, 697.5)
... direction: vertical
... mainAxisAlignment: start
... mainAxisSize: max
... crossAxisAlignment: center
... verticalDirection: down
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====================================================================================================
Wrap Column widget with SingleChiledScrollView
In TabBarView -> Column, Iam getting this exception A RenderFlex overflowed by 120 pixels on the bottom.
while scrolling, It happens only on the particular part/container: TabBarView -> Column -> Container.
here is an image for better understanding sample image
here is the code for tabView.dart:
class TabView extends StatelessWidget {
List<Category> categories = [
];
final TabController tabController;
TabView({Key key, this.tabController}) : super(key: key);
#override
Widget build(BuildContext context) {
print(MediaQuery.of(context).size.height / 9);
return TabBarView(
physics: NeverScrollableScrollPhysics(),
controller: tabController,
children: <Widget>[
Column( **//Exception here**
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Container(
margin: EdgeInsets.all(8.0),
height: MediaQuery.of(context).size.height/9,
width: MediaQuery.of(context).size.width,
// padding: EdgeInsets.only(top: 4.0),
child: ListView.builder(
//shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: categories.length,
itemBuilder: (_, index) => CategoryCard(
category: categories[index],
)),),
SizedBox(
height: 16.0,
),
Flexible(child: RecommendedList()),
],
),
Column(children: <Widget>[
SizedBox(
height: 16.0,
),
Flexible(child: RecommendedList())
]),
Column(children: <Widget>[
SizedBox(
height: 16.0,
),
Flexible(child: RecommendedList())
]),
Column(children: <Widget>[
SizedBox(
height: 16.0,
),
Flexible(child: RecommendedList())
]),
Column(children: <Widget>[
SizedBox(
height: 16.0,
),
Flexible(child: RecommendedList())
]),
]);
}
}
code for recommendedList.dart:
class RecommendedList extends StatelessWidget {
List<Product> products = [....];
#override
Widget build(BuildContext context) {
return Column( **//Exception here**
children: <Widget>[
Container(
height: 20,
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
IntrinsicHeight(
child: Container(
margin: const EdgeInsets.only(left: 16.0, right: 8.0),
width: 4,
color: Colors.lightBlue,
),
),
Center(
child: Text(
'Recommended',
style: TextStyle(
color: darkGrey,
fontSize: 16.0,
fontWeight: FontWeight.bold),
)),
],
),
),
Flexible(
child: Container(),
),//
],
);
}
}
These 2 classes are used in main page, here is the code:
return Scaffold(
resizeToAvoidBottomPadding: false,
bottomNavigationBar: CustomBottomBar(controller: bottomTabController),
body: CustomPaint(
painter: MainBackground(),
child: TabBarView(
controller: bottomTabController,
physics: NeverScrollableScrollPhysics(),
children: <Widget>[
SafeArea(
child: NestedScrollView(
headerSliverBuilder:
(BuildContext context, bool innerBoxIsScrolled) {
// These are the slivers that show up in the "outer" scroll view.
return <Widget>[
SliverToBoxAdapter(
child: appBar,
),
SliverToBoxAdapter(
child: topHeader, //child: ParallaxMain(),
),
SliverToBoxAdapter(
child: ProductList(
products: products,
),
),
SliverToBoxAdapter(
child: ProductList2(),
),
SliverToBoxAdapter(
child: tabBar,
),
];
},
body: Container(
child: TabView(
tabController: tabController,
),
//: MediaQuery.of(context).size.height/10,
),
),
),
CategoryListPage(),
CheckOutPage(),
ProfilePage()
],
),
),
);
and here is the exception i got:
A RenderFlex overflowed by 104 pixels on the bottom.
The relevant error-causing widget was:
Column file:///E:/arm%20dataset/flutter_ecommerce_template-m/lib/screens/main/components/tab_view.dart:59:11
The overflowing RenderFlex has an orientation of Axis.vertical.
The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size.
This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView.
The specific RenderFlex in question is: RenderFlex#7b505 OVERFLOWING
... needs compositing
... parentData: <none> (can use size)
... constraints: BoxConstraints(w=411.4, h=13.1)
... size: Size(411.4, 13.1)
... direction: vertical
... mainAxisAlignment: start
... mainAxisSize: min
... crossAxisAlignment: center
... verticalDirection: down
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════════════════════════════════════════════════════════════════════════════════════════════════════
════════ (2) Exception caught by rendering library ═════════════════════════════════════════════════
A RenderFlex overflowed by 19 pixels on the bottom.
The relevant error-causing widget was:
Column file:///E:/arm%20dataset/flutter_ecommerce_template-m/lib/screens/main/components/recommended_list.dart:37:12
════════════════════════════════════════════════════════════════════════════════════════════════════
Please help me out.
Use ListView instead of Column should help.
Did you try using wrapping your Column with SingleChildScrollView widget like this?
SingleChildScrollView(
child: Column(
children: <Widget>[
Wrapping the Column widget with SingleChildScrollview should work.. Let me know if it worked for you..
I'm trying to make a UI where there are some text fields inside a container and there are some icon buttons which are always going to stay at the bottom.
Here is the code minimal code
Center(
child: Container(
// width: 1006,
constraints: BoxConstraints(
maxWidth: 1006,
maxHeight: sizingInformation.screenSize.height,
),
margin: EdgeInsets.only(
left: isMobile ? 0 : 34,
),
child: Flex(
direction: Axis.vertical,
mainAxisAlignment: MainAxisAlignment.spaceBetween,
Flex(
// rest of the widgets
),
Expanded(
child: Container(
padding: EdgeInsets.all(isMobile ? 15 : 34),
margin: EdgeInsets.only(
top: isMobile ? 15 : 27,
),
constraints: BoxConstraints(
maxWidth: 1006,
),
height: 750,
decoration: BoxDecoration(
color: CARD_DARK_PURPLE,
borderRadius: BorderRadius.circular(8),
),
child: SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: Wrap(
direction: Axis.horizontal,
children: <Widget>[
Wrap(
direction: Axis.horizontal,
children: <Widget>[
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
"Pošiljalac",
style: TextStyle(
color: WHITE,
fontSize: isMobileTablet ? 22 : 24,
fontWeight: BOLD,
),
),
SizedBox(
height: 20,
),
_phoneInfo(widget.order.senderPhoneNumber, isMobile),
_emailInfo(widget.order.senderEmail, isMobile),
_fullNameInfo(widget.order.senderFirstName,
widget.order.senderLastName, isMobile, isMobileTablet),
_addressInfo(widget.order.senderStreetNumber, isMobile),
_zipCodeInfo(widget.order.senderZipCode, isMobile),
_cityInfo(widget.order.senderCity, isMobile),
SizedBox(
height: isDesktopLaptop ? 14 : 0,
),
_payeeInfo(isMobile, isMobileTablet),
],
),
SizedBox(
width: 34,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(
height: isDesktopLaptop ? 482 : 10,
),
_weightInfo(isMobile, isMobileTablet),
_noteSmall(isMobile, isMobileTablet),
],
),
],
),
Container(
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
SizedBox(height: 10),
Flex(
direction: Axis.horizontal,
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
SizedBox(width: 20),
Material(
color: DIVIDER,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(30),
),
child: Center(
child: Ink(
decoration: const ShapeDecoration(
color: DIVIDER,
shape: CircleBorder(),
),
child: IconButton(
splashColor: DARK_PURPLE.withOpacity(0.3),
icon: Image.asset(
'assets/images/inter-note-icon.png',
width: 20,
height: 24,
),
onPressed: () {
if (widget.order.operatorNote == "/") {
_dialogs.internNoteDialog(
context,
widget.order.id,
"order",
widget.order.operatorNote);
} else {
_dialogs.changeInternNoteDialog(
context,
widget.order.id,
"order",
widget.order.operatorNote);
}
},
),
),
),
),
SizedBox(width: 20),
Material(
color: DIVIDER,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(30),
),
child: Center(
child: Ink(
decoration: const ShapeDecoration(
color: DIVIDER,
shape: CircleBorder(),
),
child: IconButton(
splashColor: DARK_PURPLE.withOpacity(0.3),
icon: Image.asset(
'assets/images/trash-icon.png',
width: 28,
height: 28,
),
onPressed: () {
_dialogs.deleteOrderDialog(
context, widget.order.id, isMobile);
},
),
),
),
),
],
),
],
),
),
],
),
),
),
),
),
),
)
This is the UI that I'm trying to achieve(the box highlighted on the right side specifically)
There is SingleChildScrollView parent which has Wrap as its child. SingleChildScrollView is taking the full height available but Wrap isn't spanning to that full height. I want to make the Wrap span full height so that the icons can stay at the bottom always.
So, I placed it inside Expanded as I thought it would make it expand to the full available height. But I got this error.
The following assertion was thrown while applying parent data.:
Incorrect use of ParentDataWidget.
The ParentDataWidget Expanded(flex: 1) wants to apply ParentData of type FlexParentData to a RenderObject, which has been set up to accept ParentData of incompatible type ParentData.
Usually, this means that the Expanded widget has the wrong ancestor RenderObjectWidget. Typically, Expanded widgets are placed directly inside Flex widgets.
The offending Expanded is currently placed inside a _SingleChildViewport widget.
The ownership chain for the RenderObject that received the incompatible parent data was:
Wrap ← Expanded ← _SingleChildViewport ← IgnorePointer-[GlobalKey#01401] ← Semantics ← _PointerListener ← Listener ← _GestureSemantics ← RawGestureDetector-[LabeledGlobalKey<RawGestureDetectorState>#7427b] ← _PointerListener ← ⋯
When the exception was thrown, this was the stack
dart:sdk_internal 4461:11 throw_
packages/flutter/src/widgets/widget_span.dart.lib.js 12339:23 <fn>
packages/flutter/src/widgets/widget_span.dart.lib.js 12355:24 [_updateParentData]
packages/flutter/src/widgets/widget_span.dart.lib.js 12372:61 attachRenderObject
packages/flutter/src/widgets/widget_span.dart.lib.js 12184:12 mount
...
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by widgets library ═══════════════════════════════════
Incorrect use of ParentDataWidget.
════════════════════════════════════════════════════════════════════════════════
So, Expanded is not the answer to this. But I don't know what else is. I'm new to Flutter and having a hard time understanding the Flutter layout system. Any help would be great. Thanks for your time.
What if you make your Wrap widget the child of a container the size of the screen ?
class MyWidget extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
body: SingleChildScrollView(
child: Container(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
child: Wrap(
children: [],
))),
);
}
}
I'm trying to implement a ListView inside my drawer so when the screen orientation change i don't get an overflow error.
But as soon i add my ListView to the drawer it do not render anymore and i'm getting the errors :
I/flutter (13071): Another exception was thrown: Incorrect use of ParentDataWidget.
I/flutter (13071): Another exception was thrown: RenderBox was not laid out: RenderShrinkWrappingViewport#91f4f relayoutBoundary=up11 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
And i couldn't figure out hwy my code do not work. Doew someone has an idea why ?
Thank you !
This is my code :
Widget build(BuildContext context) {
return Drawer(
child: Container(
child: Flex(
direction: Axis.vertical,
children: <Widget>[
Align(
alignment: Alignment.bottomLeft,
child: Padding(
padding: const EdgeInsets.only(left: 40, bottom: 20),
child: Text(
"test",
overflow: TextOverflow.ellipsis,
maxLines: 1,
style: TextStyle(
color: Colors.white,
fontSize: 25,
),
),
),
),
Expanded(
child: ListView(
shrinkWrap: true,
children: <Widget>[],
),
)
],
),
),
);
}