For questions relating to Flutter's FutureBuilder class. Use this tag in combination with the general [flutter] tag. If your question applies to Flutter more generally, use the [flutter] tag only.
Questions tagged [flutter-futurebuilder]
667 questions
-2
votes
1 answer
Running Multiple Async Requests at Once in Dart. Proper way
I am trying to work with concurrency in Flutter, so I have three get-request from server and I need to get values from them at the same time. Each request was parsed into a model. Now I'm trying to figure out how I can combine all the models into…

inkwelll075
- 494
- 4
- 19
-2
votes
1 answer
FutureBuilder doesn't wait until future completes
In my app I want to initialize something before my widgets will be created. I need to do it exactly in App class and trying to use FutureBuilder for this purpose. But _AppBlocProvider's build method is called before initInjectionContainer(), for…

Yaro Best
- 29
- 1
- 5
-2
votes
2 answers
Unhandled Exception: type 'int' is not a subtype of type 'String' in Flutter app
I am trying to do an example which includes APIs.
Here's my sample API which I want to return:
[
{
"ID": 47,
"DerslikAd": "a",
"SinifID": 1,
"SinifAd": "1. Sınıf"
},
{
"ID": 77,
…

Furkan Demirel
- 3
- 1
-3
votes
2 answers
Why does futureBuilder return a null value?
When I try to take a object in my home page I don't get an error, but even if I use the same method in the next screen to display my object from the database, FutureBuilder can't take any value.
@override
Widget build(BuildContext context) {
…

ygzkrmtc
- 97
- 7
-3
votes
2 answers
Image not loading from firestore in flutter app
I am very new to Flutter and Firestore. So I uploaded some photos on Firebase storage.
Here is how storage looks
Then I pasted their download URL into firestore database.
Here is how firestore looks
but every time I try to get them in my app I am…

Karimul Hasan
- 23
- 5
-5
votes
1 answer
I have List i need to convert ApplicationMeta type
List apps = [];
@override
void initState() {
UpiPay.getInstalledUpiApplications().then((value) {
setState(() {
this.apps = value;
print('successfully append');
});
}).catchError((e) {
print('im in error…

Joshua Jenny Sibbu
- 51
- 3
- 11