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Questions tagged [flutter-futurebuilder]

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.

Reference:

667 questions
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State exists and rebuild widget again and again

I am working on a web app where I need to build a widget depending on a state. Now, I have different Cubits and they have different states. One is main Cubit, that is on the top widget or page. Then I have another cubit state that builds part of…
WasimSafdar
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Using ListView with async items without knowing itemCount beforehand

I want to use Flutter’s ListView to display a list of items, and the data of the items are obtained from a RESTful API with pagination support. E.g. GET /transactions?page=1&limit=100 { "transactions": [ ... ] "pagination": { "total": 1000 …
someone
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Initial screen in Flutter app based on user's database property value

In my Flutter app, I am using Firebase auth for the authentication of users. I am successfully able to direct the user to a specific page based on the user's auth state (Signup page if they have not signed up before, and home page if they are…
Garrett
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Flutter - Multiple Future with error "type 'Null' is not a subtype of type 'Widget'"

I've build a simple Splash screen. I'm using this package. Now, I'm trying to add version checker via Firebase Remote Config to my Splash Screen. I've written simple version checker code: Future versionCheck(context) async { //Get Current…
Wicaledon
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FutureBuilder snapshot is empty but Future has correct data AND FutureBuilder constantly refreshing - Flutter

I have screens in a TabBarView that share data so I decided to wrap the TabBarView in a FutureBuilder and pass the data from that into both screens. The Future is called fetchUsersAndPosts() and it is meant to return [[*users], [*posts*]] but the…
Globe
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Caching images (thumbnails) in Listview

I made a simple application where in listview I display a list of items by ListView.builder. Each item is a widget where by FutureBuilder I build a CircleAvatar with a picture taken in initState () via Api. I'm using the AppWrite API. The method…
pitcairn1987
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Horizontal ListView not showing in release mode working fine in debug mode in flutter

''' Container( //padding: const EdgeInsets.only(left: 20), child: FutureBuilder( future: getContracts(), builder: (BuildContext context, AsyncSnapshot snapshot) { …
Abubakar
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type 'Future' is not a subtype of type 'Future>?'

I want to get a list of languages in my flutter app from my sqflite db, but when I try create the lang list i get this error type 'Future' is not a subtype of type 'Future?' I tried everything but nothing change, how can i solve the…
rolex92
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how to rebuild entire flutter app after saving preferences

I have an Homepage with dummy categories which wont update after i changed language inside the app. I use Easy localization package, and everything works fine. There are 3 pages on my app, but the Homepage is the only one that wont update. It does,…
Giovanni
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Pagination with Future Builder and List of snapshots, Flutter

I want to implement pagination when calling APIs(without any packages) with my FutureBuilder, that calls 2 APIs at the same time since one depends on the other and I'm not sure how to do that. Here is the code below: The ListView from…
GrandMagus
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how to use "snapshot.hasData" with Dynamic Future builder

I had a String type future method but I had to do some modifications to the code and I changed my future method to dynamic future and everysince the future builder never validate if snapshot has data late final Future myFuture; @override void…
taha khamis
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Flutter FutureBuilder does not stop showing CircularProgressIndicator

I am trying to receive data using a FutureBuilder, but it hangs on the CircularProgressIndicator. I think it's remaining on ConnectionState.waiting but I'm not sure why. @override initState() { _widgetList = getWidgetList(); } …
Dillon Shah
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Getting Unhandled Exception: type 'Null' is not a subtype of type 'Iterable' when trying to produce a feed

I am trying to retrieve a feed from Firestore, then build Widgets and present them in a ListView wrapped in a FutureBuilder. Unfortunately, I keep getting this error: E/flutter (20020): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled…
Dillon Shah
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Update forms in FutureBuilder

I want to be able to update my forms in a futureBuilder. I need the futureBuilder to retrieve all the datas from the player in my DataBase. I am setting my initial values of my form right after I got the datas. When I'm trying to update de date…
zsupraz
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There is a problem that is rebuild when I click TextField() in Flutter

My code includes FutureBuilder(), which get data from Firestore, and its child widgets include GridView.builder and TextField widgets etc. When I click on a TexField(focus), the codes in FutureBuilder are rebuild. The following is the test code for…
Kevin Yang
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