how to list dynamically radiobuttons contained in listTiles in flutter? - flutter

Question

i would like to show a list of radiobuttons? this radiobuttons are contained in ListTile widget, i tried some code but nothing appears :
when i put a single radiobutton , this appears but when i put a listview nothing appears on the page including others widgets
Widget build(BuildContext context) {
return StoreConnector<MMpataState, MMpataViewModel>(
converter: MMpataViewModel.convertStateToViewModel,
builder: (BuildContext context, MMpataViewModel vm) {
// print(vm.state.subscriptions2);
if (vm.state.isSubscriptions2loaded &&
vm.state.subscriptions2.length < 1) {
return Scaffold(
appBar: AppBar(
title: Text("Aucune donnée"),
),
body: Padding(
padding: const EdgeInsets.symmetric(horizontal: 20),
child: Center(
child: Text(
"Nous n'avons trouvé aucune souscription pour le produit
sélectionné.",
),
),
),
);
}
return Scaffold(
appBar: AppBar(
title: Text(!vm.state.isSubscriptions2loaded ? "Chargement ... " :
vm.state.subscriptions2[0].product.libelle),
),
body: MMpataLoader(
inAsyncCall: _isLoading || !vm.state.isSubscriptions2loaded,
child:
Column(
children: <Widget>[
Form(
child: new Container(
color: Color(0xffFFFFFF),
child:
Column( crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Column(crossAxisAlignment:
CrossAxisAlignment.start,
children: <Widget> [
Padding(padding:EdgeInsets.fromLTRB(25.0, 0.0,
0.0, 0.0),
child: Column(crossAxisAlignment:
CrossAxisAlignment.start,
children: <Widget> [
Text(""),
Text(vm.state.subscriptions2[0].product.libelle,
textAlign:TextAlign.left,style:TextStyle()),
Text(vm.state.subscriptions2[0].product.description,
textAlign: TextAlign.left),
Expanded(
child: ListView.builder(shrinkWrap:true,
itemCount: vm.state.subscriptions2.length,
itemBuilder: (context, index) {
return RadioListTile<double>(
title:Text(
"${vm.state.subscriptions2[index].quota.libelle}
(${vm.state.subscriptions2[index].amount} CDF)"),
value: vm.state.subscriptions2[index].amount,
groupValue:vm.state.subscriptions2[index].amount,
onChanged: (double value) {
setState(() {
vm.state.subscriptions2[index].amount = value;
});
},
);
}),
),
])
),
_getActionButtons(vm),
SizedBox(height: 100)
]) ],
),
),
)
],
),
),
);
},
);
}
i have this error while running : RenderBox was not laid out