All Questions
8 questions
0
votes
1
answer
114
views
Stuck in the loop when downloading from Firebase Realtime database
I'm rewriting one of my projects I use for learning from SwiftUI to Flutter and I'm stuck at one part where I read data from Firebase Realtime Database. What I do is that I anonymously authorize to ...
- 65
1
vote
0
answers
24
views
Flutter FutureBuilder returns a K:V object on initial child().get() but only V remains on state changes
This is a behavior I'm not understanding but am sure I've got something wrong. Components: Flutter, Realtime Database, FutureBuilder. Modified code:
[FormView class omitted but extends StatefulWidget]
...
- 41
-2
votes
1
answer
99
views
The operator '[]' isn't defined for the type 'Object'. Try defining the operator '[]'. Why I am getting this error in my listview builder?
before puting "!", I was getting this error:
The method '[]' can't be unconditionally invoked because the receiver
can be 'null'.
This is my code:
FutureBuilder(
future: ...
- 550
0
votes
1
answer
211
views
Double update in FutureBuilder?
I have a FutureBuilder which is getting data from my firebase realtime database. Result should be a list of all posts, that also works but only for one second or so, it gets updated two times for what ...
- 563
0
votes
1
answer
74
views
How to display something while the value is null/loading in Flutter?
I've created a real-time object detection with Tiny YOLOv2 using Flutter app. So far the app managed to detect the object and display its bounding box with the detectedClass and confidence. Then I ...
- 41
1
vote
2
answers
147
views
How to use mutable data in future flutter?
How can I use the MutableData? or is it already deprecated? I am currently creating a user information that will be send to firebase realtime database.
addUser(User user) async {
final ...
- 305
0
votes
1
answer
332
views
FutureBuilder get data only one time
I have to get a List from Realtime Database (Firebase). I have no problem to get first time my list but if I go back and return on the future builder activity I get no data.
This is my code:
import '...
- 43
1
vote
1
answer
406
views
How to change Flutter widget Visibility using Firebase Realtime Database and FutureBuilder?
Well,
My realtime database looks like: Database
My app looks like: Slidable button
The slidable button is wrapped in Visibility() widget, so, I'm trying to set this one invisible when child "...
