I’m utilizing the customized dropdown in my cell app. The issue is when the checklist of that dropdown is empty then i’m displaying a container within the place of that dropdown. When the checklist has factor once more, customdropdown is once more proven however when i choose an possibility of that dropdown for the primary time the onChanged methodology will not be referred to as and typically refreshereportanalysisfilter() is named a number of time no matter onChanged getting referred to as solely as soon as. My full Code is connected right here.
import 'package deal:flutter/materials.dart';
Widget construct(BuildContext context) {
closing _width = Get.width;
closing _height = Get.top;
return AppBackground(
youngster: Scaffold(
backgroundColor: Colours.clear,
appBar: AppBar(
title: Textual content(
"Block-Sensible End result Evaluation",
),
backgroundColor: ThemeColors.main,
),
physique: LayoutBuilder(builder: (context, constraints) {
return _isLoading
? const Heart(
youngster: CircularProgressIndicator(),
)
: SingleChildScrollView(
youngster: ConstrainedBox(
constraints: BoxConstraints(
minWidth: constraints.maxWidth,
minHeight: constraints.maxHeight),
youngster: IntrinsicHeight(
youngster: Column(
kids: [
Container(
width: _width,
height: 110,
color: Colors.transparent,
margin: EdgeInsets.only(
top: 10, bottom: 20, left: 10, right: 10),
child: Wrap(
direction: Axis.horizontal,
alignment: WrapAlignment.spaceEvenly,
// crossAxisAlignment: WrapCrossAlignment.center,
runAlignment: WrapAlignment.center,
runSpacing: 10,
// runAlignment: WrapAlignment.end,
children: [
Column(
// mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text(
"Select Term",
style: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.normal),
),
SizedBox(
height: 5,
),
GestureDetector(
child: Container(
width: _width * 0.35,
height: 30,
decoration: BoxDecoration(
borderRadius:
BorderRadius.circular(18.0),
color: ThemeColors.offwhite,
border: Border.all(
color: ThemeColors.secondary,
width: 1.5),
),
child: Padding(
padding: const EdgeInsets.fromLTRB(
8, 1, 8, 1),
child: Row(
mainAxisAlignment:
MainAxisAlignment.spaceBetween,
children: [
Text(
_date,
style: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
),
Icon(
Icons.calendar_today_rounded,
color: ThemeColors.black,
size: 14.0,
),
],
),
),
),
onTap: () async {
closing chosen =
await showMonthYearPicker(
context: context,
initialDate:
DateFormat("MMM-yyyy").parse(_date),
firstDate: DateTime(2023),
lastDate: DateTime(2030),
builder: (context, youngster) {
return Theme(
information: Theme.of(context).copyWith(
colorScheme: ColorScheme.gentle(
main: ThemeColors
.main, // header background colour
onPrimary: Colours
.black, // header textual content colour
onSurface: ThemeColors
.secondary // physique textual content colour
),
textButtonTheme:
TextButtonThemeData(
model: TextButton.styleFrom(
foregroundColor:
ThemeColors.main,
),
),
),
youngster: youngster!,
);
},
);
_date = DateFormat('MMM-yyyy')
.format(chosen!);
await refreshReportAnalysiswithFilter();
if (mounted) setState(() {});
},
),
],
),
Column(
kids: [
Text(
"Filter School Type",
style: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.normal),
),
SizedBox(
height: 5,
),
SizedBox(
width: _width * 0.35,
height: 30.0,
child: CustomDropdown(
hintText: 'Select',
fillColor: ThemeColors.offwhite,
borderRadius: BorderRadius.circular(18.0),
borderSide: BorderSide(
color: ThemeColors.secondary,
width: 1.5),
hintStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
selectedStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
listItemStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
items:
// ["Select"],
_schoolTypeList.solid<String>(),
controller: _schoolTypeController,
onChanged: (worth) async {
_classList.clear();
_classController.clear();
_classSubject.clear();
_subjectController.clear();
_subjectsList.clear();
await getclass();
// _subjectController =
// TextEditingController();
if (mounted) setState(() {});
},
),
),
],
),
Column(
crossAxisAlignment: CrossAxisAlignment.heart,
kids: [
Text(
"Filter Class",
style: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.normal),
),
SizedBox(
height: 5,
),
SizedBox(
width: _width * 0.35,
height: 30.0,
child: CustomDropdown(
hintText: 'Select',
fillColor: ThemeColors.offwhite,
borderRadius: BorderRadius.circular(18.0),
borderSide: BorderSide(
color: ThemeColors.secondary,
width: 1.5),
hintStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
selectedStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
listItemStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
items:
// ["Select"],
_classList.solid<String>(),
controller: _classController,
onChanged: (worth) {
_subjectController.clear();
_subjectsList.clear();
getSubjectList();
_subjectController =
TextEditingController();
if (mounted) setState(() {});
},
),
),
],
),
Column(
kids: [
Text(
"Filter Subject",
style: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.normal),
),
SizedBox(
height: 5,
),
_subjectsList.isNotEmpty
? SizedBox(
// key: Key(myKey),
width: _width * 0.35,
height: 30.0,
child: CustomDropdown(
// key: Key(myKey),
hintText: 'Select',
fillColor: ThemeColors.offwhite,
borderRadius:
BorderRadius.circular(18.0),
borderSide: BorderSide(
color: ThemeColors.secondary,
width: 1.5),
hintStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
selectedStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
listItemStyle: TextStyle(
color: ThemeColors.black,
fontSize: 12,
fontWeight: FontWeight.w500),
items:
// ["Select"],
_subjectsList.solid<String>(),
controller: _subjectController,
onChanged: (worth) async {
await refreshReportAnalysiswithFilter();
if (mounted) setState(() {});
},
),
)
: Container(
top: 30.0,
width: _width * 0.35,
ornament: BoxDecoration(
colour: ThemeColors.offwhite,
borderRadius:
BorderRadius.round(18.0),
border: Border.all(
colour: ThemeColors.secondary,
width: 1.5,
),
),
youngster: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 14.0),
youngster: Row(
crossAxisAlignment:
CrossAxisAlignment.heart,
mainAxisAlignment:
MainAxisAlignment
.spaceBetween,
kids: [
Text(
"Select",
style: TextStyle(
color: ThemeColors.black,
fontSize: 13,
fontWeight:
FontWeight.w500),
),
Icon(
Icons.keyboard_arrow_down,
color: Colors.black,
size: 19.0,
),
],
),
)),
],
),
],
),
),
_chartDataList.size != 0
? Container(
colour: ThemeColors.littlewhite,
youngster: Column(
kids: [
Padding(
padding: const EdgeInsets.all(8.0),
child: ClipRRect(
borderRadius: BorderRadius.circular(30),
child: Container(
color: ThemeColors.offwhite,
child: Column(
children: [
ScrollbarTheme(
data: ScrollbarThemeData(
interactive: true,
mainAxisMargin: 16,
radius:
Radius.elliptical(3, 3),
showTrackOnHover: false,
thumbVisibility:
MaterialStatePropertyAll(
true),
thumbColor:
MaterialStatePropertyAll(
ThemeColors
.tableScroll),
thickness:
MaterialStateProperty.all(
4),
trackColor:
MaterialStateProperty.all<
Color>(Colors.green),
),
child: Scrollbar(
scrollbarOrientation:
ScrollbarOrientation.top,
controller:
_yourScrollController,
child: SingleChildScrollView(
controller:
_yourScrollController,
scrollDirection:
Axis.horizontal,
child: DataTable(
horizontalMargin: 40,
headingRowColor:
MaterialStatePropertyAll(
ThemeColors
.tableHeader),
columns: [
DataColumn(
label:
Text('Sl. no')),
DataColumn(
label:
Text('Block')),
DataColumn(
label:
Text('0-30%')),
DataColumn(
label:
Text('30-59%')),
DataColumn(
label:
Text('60-79%')),
DataColumn(
label: Text(
'80-100%')),
],
rows: _chartDataList
.asMap()
.entries
.map((entry) {
return DataRow(
colour: entry.key %
2 !=
0
? MaterialStatePropertyAll(
Colours.gray[
300])
: MaterialStatePropertyAll(
Colours
.clear),
cells: [
DataCell(Text((entry
.key +
1)
.toString())),
DataCell(Text(entry
.value
.blockName)),
DataCell(Text(entry
.value.per030
.toString())),
DataCell(Text(entry
.value.per3059
.toString())),
DataCell(Text(entry
.value.per6080
.toString())),
DataCell(Text(entry
.value.per80100
.toString())),
],
);
}).toList(),
),
),
),
),
],
),
),
),
)
],
),
)
: SizedBox()
],
),
),
),
);
}),
),
);
}
class ChartData {
closing String blockName;
closing double per030;
closing double per3059;
closing double per6080;
closing double per80100;
ChartData({
required this.blockName,
required this.per030,
required this.per3059,
required this.per6080,
required this.per80100,
});
}
Each time i’m assigning the _subjectController a brand new controller commented within the above code its working however i need to know what’s inflicting the problems and what would be the greatest observe to resolve it.
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