Future builder not firing - flutter

Question

I can't seem to get my future builder to update. The api response is working fine I can see it in my logs. (model.getSuburbs). but it doesn't seem like my my future in the FutureBuilder suburbs is doing anything.. Am I missing something obvious (The onSubmitis trigger when I enter the last number and triggers the api)
class PostcodePage extends StatefulWidget {
static Route<dynamic> route() {
return MaterialPageRoute(
builder: (BuildContext context) => PostcodePage(),
);
}
#override
_PostcodeScreenState createState() => _PostcodeScreenState();
}
class _PostcodeScreenState extends State<PostcodePage> {
PostcodeViewmodel model = serviceLocator<PostcodeViewmodel>();
Future<List<Suburb>> suburbs;
String postCode;
#override
void initState() {
super.initState();
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
padding: EdgeInsets.all(32),
child: Column(children: [
SizedBox(height: 200),
PinEntryField(
onSubmit: (input) => getSub(pc: input),
),
FutureBuilder<List<Suburb>>(
future: suburbs,
builder: (context, snapshot) {
if (snapshot.connectionState==ConnectionState.active) {
return Text('Would Like something here...');
} else
return Text('But always end up here...');
},
),
// (postCode != null) Text(postCode),
SizedBox(
height: 300,
),
SizedBox(
width: double.maxFinite,
child: OnBoardingButton(
text: 'Begin',
onPressed: () {},
color: Color(0xff00E6B9),
),
),
]),
),
);
}
getSub({String pc}) {
setState(() {
suburbs = model.getSuburbs(country: 'au', postcode: pc);
});
}
}

Answer 1

Try to change your condition inside the builder.
This code snapshot.connectionState==ConnectionState.active could be really really short depending on the suburbs future.
Please try this inside the builder.
if (snapshot.hasData) {
return Text('Would Like something here...');
} else {
return Text('But always end up here...');
}