refresh API data from a button

I´ve does a weather app, that takes the location and gives the coords to weather API,
and return weather data from the current location of de device,

what i want is to refresh that data with a button, and refresh when i close app and open again later.

any idea to do this?... i´ve implemented a streambuilder to get constant info about the activation state of location in mobile... nut i dont know how to rebuild all the page to execute the methods that give me the information.

    class _HomePageState extends State<HomePage> {
  final stream = StreamController<dynamic>();

  WeatherApiService? weatherApi;
  GeolocatorService? geolocatorService;
  NewsService? newsService;

  @override
  void initState() {
    super.initState();
    weatherApi = Provider.of<WeatherApiService>(context, listen: false);
    geolocatorService = Provider.of<GeolocatorService>(context, listen: false);
    newsService = Provider.of<NewsService>(context, listen: false);

    _loadWeatherData();
  }

  void _loadWeatherData() async {
    String coords = await geolocatorService!.getCurrentLocation();

    final hasData = await weatherApi!.getInfoWeatherLocation(coords);

    (hasData) ? true : false;

    stream.sink.add(hasData);
  }

  @override
  Widget build(BuildContext context) {
    final weatherAPI = Provider.of<WeatherApiService>(context);
    final apiResp = weatherAPI;

    return StreamBuilder(
      stream: stream.stream,
      builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
        if (snapshot.connectionState == ConnectionState.waiting) {
          return CircularIndicator();
        } else {
          return HomeWidget(

refresh your weather data with a button or when the app is reopened, use a stateful widget and setState to rebuild the widget and update the data. can you please try below code and let me know if you face any issue.

class HomePage extends StatefulWidget {
const HomePage({Key? key}) : super(key: key);
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
final stream = StreamController<dynamic>();
WeatherApiService? weatherApi;
GeolocatorService? geolocatorService;
NewsService? newsService;
@override
void initState() {
super.initState();
weatherApi = Provider.of<WeatherApiService>(context, listen: false);
geolocatorService = Provider.of<GeolocatorService>(context, listen: false);
newsService = Provider.of<NewsService>(context, listen: false);
_loadWeatherData();
}
void _loadWeatherData() async {
String coords = await geolocatorService!.getCurrentLocation();
final hasData = await weatherApi!.getInfoWeatherLocation(coords);
(hasData) ? true : false;
stream.sink.add(hasData);
}
void _refreshWeatherData() {
_loadWeatherData();
setState(() {});
}
@override
Widget build(BuildContext context) {
final weatherAPI = Provider.of<WeatherApiService>(context);
final apiResp = weatherAPI;
return Scaffold(
appBar: AppBar(
title: const Text('Weather App'),
),
body: StreamBuilder(
stream: stream.stream,
builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const CircularProgressIndicator();
} else {
return HomeWidget(
// Passing weather data to the Home Widget
weatherData: apiResp.data,
);
}
},
),
floatingActionButton: FloatingActionButton(
onPressed: _refreshWeatherData,
child: const Icon(Icons.refresh),
),
);
}
@override
void dispose() {
stream.close();
super.dispose();
}
}