check Box in drop down list flutter

Question

I am using check Box in drop down Menu but when I chose the box nothing change unless closing the menu and open it again here is my code

items: [
DropdownMenuItem(
child: Row(
children: <Widget>[
Checkbox(
onChanged: (bool value) {
setState(() {
isSat = value;});},
value: isSat,),
Text(
daysList[0]['days'],),],),),
DropdownMenuItem(
child: Row(
children: <Widget>[
Checkbox(
onChanged: (bool value) {
setState(() {
isFri = value;});},
value: isFri,),
Text(
daysList[6]['days'],),],),)
].toList(),
onChanged: (value) {},),

Solution

You need to wrap all your checkboxes with StatefulBuilder. The setState that you're using only applies to the state of the widget containing all your dropdown menus but not the state of the checkbox.

Here how you can do it:

 StatefulBuilder(
    builder: (BuildContext context, StateSetter stateSetter) {
      return Checkbox(
        onChanged: (bool value) {
          // note here we call stateSetter from the StatefulBuilder!
          stateSetter(() {
              // reverse the value
              isFri = !isFri;
         });
        },
        value: isFri,
       );
  }),

You've to do it for each CheckBox widget.

Comments

[EngineSense]

Are you using statelesswidget?

[Salem]

no I am using StatefulWidget