I'm using flutter_bloc.
I've got code like this:
class Settings extends StatelessWidget {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text("SomeApp",style: TextStyle(color: Colors.white)),
automaticallyImplyLeading: false,
backgroundColor: myBlue.shade50,
actions: <Widget>[
IconButton(
icon: new Icon(FontAwesomeIcons.download,color: Colors.white),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => DownloadView()),
);
},
),
IconButton(
icon: new Icon(FontAwesomeIcons.chevronCircleLeft,color: Colors.white),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => MainWindow()),
);
},
),]
),
body: Container(
padding: EdgeInsets.symmetric(vertical: 16),
alignment: Alignment.center,
child: new BlocBuilder<SettingsBloc, SettingsState>(
builder: (context, state) {
if (state is SettingsNotLoaded) {
return new Center(
child: Text(
'count1',
style: TextStyle(fontSize: 24.0,color: Colors.black),
)
);
} else if (state is SettingsLoaded) {
return new Center(
child: Text(
'count2',
style: TextStyle(fontSize: 24.0,color: Colors.black),
)
);
}
else
{
return new Center(
child: Text(
'count3',
style: TextStyle(fontSize: 24.0,color: Colors.black),
)
);
}
},
),
),
);
}
And when starting my app I see the appBar just the way I want, but I do not see any text in body (I should see either count1, count2 or count3), but instead I get the error:
Each child must be laid out exactly once." referring to line 5 -
return new Scaffold(
Of course, I looked for info on flutter_bloc page, on https://flutter.dev/docs/development/ui/layout/tutorial ,here and in google as well.
BlocBuilderfirst? – Frication