Flutter Passing Data:: Getter not found - flutter

Question

I'm trying to make a splash screen where the user chooses a city, with each city having its own API via url_items variable to access its data to populate the ListViews in the second screen.
When I call the data in the second screen, via http.Response response = await http.get(url_items); I get an error Getter not found: url_items
How do I do the Getter properly?
class Splash extends StatefulWidget {
_SplashState createState() => _SplashState();
}
class _SplashState extends State<Splash> {
String dropdownValue = 'NY';
String city = 'NY';
String url_items = 'https://ny.com/items';
String url_stores = 'https://ny.com/stores';
Widget build(BuildContext context) {
return Scaffold(
body: Stack(
children: <Widget>[
ListTile(
title: DropdownButton<String>(
value: dropdownValue,
onChanged: (String newValue) {
setState(() {
dropdownValue = newValue;
city = newValue;
if (city == 'NY'){url_items = 'https://ny.com/items';} else {url_items = 'https://chicago.com/items';}
});
},
items: <String>['NY', 'Chicago'].map<DropdownMenuItem<String>>(
(String value) {
return DropdownMenuItem<String>(
value: value,
child: Text(value),
);
}
).toList(),
),
),
RaisedButton(
child: Text('View Items'),
onPressed: () {
Navigator.push(context,
MaterialPageRoute(
builder: (context) => Items(url_items: url_items, url_stores: url_stores, city: city)
),
);
},
),
],
),
);
}
}
class Items extends StatelessWidget {
var url_items="";
var url_stores="";
var city="";
Items({Key key, this.url_items, this.url_stores, this.city}) : super(key: key);
static Future<List<Item>> getItems() async {
http.Response response = await http.get(url_items);
String data = response.body;
List collection = json.decode(data);
Iterable<Item> _items = collection.map((_) => Item.fromJson(_));
return _items.toList();
}
Stream<List<Item>> get itemListView => Stream.fromFuture(getItems());
Widget build(BuildContext context) {
return Scaffold(
body: StreamBuilder(
stream: itemListView,
builder: (BuildContext context, AsyncSnapshot<List<Item>> snapshot) {
List<Item> items = snapshot.data;
return ListView.separated(
itemBuilder: (BuildContext context, int index) {
Item item = items[index];
return ListTile(
title: Html(data: item.name),
subtitle: Html(data: item.userName),
onTap: () {
Navigator.push(context,
MaterialPageRoute(
builder: (context) => ItemDetail(item.name, item.userName..),
),
);
},
);
},
separatorBuilder: (context, index) => Divider(),
);
}
}
),
);
}
}

Answer 1

Instance variables/members cannot be accessed from a static method. so try changing
static Future<List<Item>> getItems() async {...}
to
Future<List<Item>> getItems() async {...}