I am hoping to use value passed on from another widget in one of the references for a collection within a document. However, this error pops up: The instance member 'value' can't be accessed in an initializer. Try replacing the…
I have a line contains 4 outlinedbuttons and i have 4 widgets ( listview , ListWheelScrollView ,image png and svg image ) i want to display one widget only when i pressed at one outlinedbutton . what should i use…
I cannot display the image, but all of the data is display for example name return FutureBuilder<DocumentSnapshot>( future: result.doc(foodId).get(), builder: ((context, snapshot) { if (snapshot.connectionState == ConnectionState.done) { Map<String, dynamic> data = snapshot.data!.data() as Map<String, dynamic>; return Text('Name:' + '${data['name']}'…
I want to sort the list twice. Example list (here is an example list with models): [Model("A", 5), Model("C", 3), Model("B", 7) Model("F", 5), Model("D", 5)] What I want is to sort alphabetically and then numerically. If I do this,…
I have a weird error with my Flutter code involving a Future<T> return type. I have a fairly simple piece of code that makes a get request to the backend, and a .then clause to handle the return. Everything's fine,…
hi i am new flutter development and i'm facing error: The method '[]' can't be unconditionally invoked because the receiver can be 'null' in following lines image: element.data()['image'], name: element.data()['name'], price: element.data()['price'] please let me know if there is any…
I have a flutter's ElevatedButton to show a rewardedAd. It shows a string:'show ad' initially. But after watching an ad, i want to display an int:'+10' inside it. Also, I want to increment +10 every time I click on it…
Evening All, I am was trying to run some old project in github but when trying to run pub get having this kind of error Running "flutter pub get" in budgex... Because flutter_html >=2.0.0-nullsafety.1 depends on html >=0.15.0 <1.0.0 and…
I built a simple quiz app with 3 questions, the logic works and it takes you through all the questions. At the end there is an alert dialog that pops up and shows you your score, after clicking close it…
I'm new to programming, and this is my first post on stack overflow! In building my first Flutter app I'm trying to understand the code, and I'm not sure why two pieces of code behave differently. Feel free to just…