Issue
I’m new to flutter so I’m not sure how to go about this. I want to be able to add another instance of the same CheckboxListTile when a user presses a button right below the most recent CheckboxListTile.
The code for how it currently is is below.
Widget build(BuildContext context) {
return ListView(
children: <Widget>[
CheckboxListTile(
title: TextField(
autocorrect: true,
),
value: checkBoxValue,
secondary: Icon(Icons.assignment),
onChanged: (bool newValue) {
setState(() {
checkBoxValue = newValue;
});
}
),
],
The code of an example of how I would want the app to appear after a user presses is below.
Widget build(BuildContext context) {
return ListView(
children: <Widget>[
CheckboxListTile(
title: TextField(
autocorrect: true,
),
value: checkBoxValue,
secondary: Icon(Icons.assignment),
onChanged: (bool newValue) {
setState(() {
checkBoxValue = newValue;
});
}
),
CheckboxListTile(
title: TextField(
autocorrect: true,
),
value: checkBoxValue,
secondary: Icon(Icons.assignment),
onChanged: (bool newValue) {
setState(() {
checkBoxValue = newValue;
});
}
),
],
Thanks in advance!
Solution
One way you could do it is by using a ListView.builder
like this..
class MyWidget extends StatefulWidget {
@override
_MyWidgetState createState() => _MyWidgetState();
}
class _MyWidgetState extends State<MyWidget> {
List<bool> checkBoxesCheckedStates = [false];
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
Expanded(
child: ListView.builder(
itemCount: checkBoxesCheckedStates.length,
itemBuilder: (BuildContext context, int index){
return CheckboxListTile(
title: TextField(
autocorrect: true,
),
value: checkBoxesCheckedStates[index],
secondary: Icon(Icons.assignment),
onChanged: (bool newValue) {
setState(() {
checkBoxesCheckedStates[index] = newValue;
});
},
);
},
),
),
RaisedButton(
child: Text('Add'),
onPressed: (){
setState(() {
checkBoxesCheckedStates.add(false);
});
},
),
],
);
}
}
Answered By – Jigar Patel
Answer Checked By – David Marino (FlutterFixes Volunteer)