I've been unable to find any information on how to properly override a Notifier using Riverpod (no code-gen). From the documentation, the build method returns an empty list of Todo, however what if we want to override it with a…
I have a drop-down where I can select several items. I am using a StateNotifier because the logic is a little bit too complicated for a simple StateProvider. I have a model class with attributes I want to fill e.g.…
Goal is to center first widget and put to left second widget. However, if centered widget is too long, it should wrap, not overlap on left widget. That's why Stack is not working. return Scaffold( body: Padding( padding: const EdgeInsets.all(38.0),…
I'm trying to retrieve data from a database, and have made these two methods inside of a certain "TodoDB" class: Future<List<SurveyData>> fetchAll() async { final database = await DatabaseService().database; final survey = await database.rawQuery('''SELECT * from $tableName'''); return survey.map((survey) =>…
I'm encountering an issue in Dart related to class inheritance and constructors. The error message I'm receiving is: error: The class 'PathWithActionHistory' can't extend 'Path' because 'Path' only has factory constructors (no generative constructors), and 'PathWithActionHistory' has at least one…
I want to create a widget that takes a list of widgets (in this case always buttons) and automatically arranges them in a kind of grid depending on the width of the child. When there are 2 Buttons in a…
I do not know how many images I will have, whether there are any methods such as "assets.length" or other ways ListView.builder( itemCount: // here I have to specify how many images I have in my resource file scrollDirection: Axis.horizontal,…
I am migrating to GetX to Bloc, in GetController we don't need BuildContext to call controller, so is there any way to Provide the Context to the bloc class from BlocProvider and we get bloc without providing buildContext like for…
I need to display text and a double in a Text widget but I am getting an error. This should be a simple thing to do. Here is the code: double commission = 0.0; const Text('Commission: ${commission}'), Here is the…
I'm using the BloC pattern for the first time in my App. And I am having multiple of problems with it. For my Question i have a list of boolean ( Checkboxes ) The problem is when I click on…