Asynchronous method not running in proper order - flutter

Question

I have these methods, for some reason fetchItems is being called first before initPosition, how come dart wont wait for it to finish and proceeds to the second method? I've added async/await but it still doesn't work. I've also checked my backend logs to confirm this. Am I doing something wrong?
Future<void> initPosition() async {
if (_latitude != null && _longitude != null) {
await Socket.updatePosition(
lat: 51,
lon: 17,);
}
}
Future<void> initMarkers() async {
await initPosition();
await Provider.of<Items>(context, listen: false)
.fetchItems();
}
void initMapState() async {
await getCurrentLocation().then((_) async {
await initMarkers();
setState(() {
_loaded = true;
});
});
}
#override
void initState() {
super.initState();
_location.enableBackgroundMode(enable: false);
WidgetsBinding.instance?.addPostFrameCallback((_) {
initMapState();
});
}
Future<void> fetchItems() async {
itemList = await repository.getItemList();
notifyListeners();
}

Answer 1

Working with multiple asynchronous functions inside Futures depends on whether one is finished or not, not every single one. For this, you can call the "whenComplete" method so you can assure that your future function have finished running. Like this:
For your initMarkers() function:
Future<void> initMarkers() async {
await initPosition().whenComplete((){
Provider.of<Items>(context, listen: false)
.fetchItems();
});
}
For your initMapState() function:
void initMapState() async {
await getCurrentLocation().whenComplete(() async {
await initMarkers().whenComplete((){
setState(() {
_loaded = true;
});
});
});
}
Keep in mind that, in your code, you are not working with the returning value of your getCurrentLocation() function, so instead of using the "then" method use the "whenComplete" method, assuring that you changed or returned your values with this function. Finally, for the initState(), make the function body with asynchronous:
#override
void initState() {
super.initState();
_location.enableBackgroundMode(enable: false);
WidgetsBinding.instance?.addPostFrameCallback((_) async {
initMapState();
});
}
This should work.