Issue In the ToDo tutorial of BlocLibrary I cam along the following snippet. TodosOverviewState copyWith({ TodosOverviewStatus Function()? status, List<Todo> Function()? todos, TodosViewFilter Function()? filter, Todo? Function()? lastDeletedTodo, }) { return TodosOverviewState( status: status != null ? status() : this.status, todos:
Continue readingTag: class
How to solve The argument type 'JsObject' can't be assigned to the parameter type 'BuildContext'
Issue I want to call a class and it needs a parameter. I have tried to insert ‘context’ on it, but instead importing ‘context’ from BuildContext, it imports context from dart:js. So I don’t know what I should insert to
Continue readingClass and Stateless Widget
Issue First of all I would like to say that I am new to Flutter. I don’t understand the difference between class and stateless widget. I understand why I’m using stateful , because of setState. but why should I use
Continue readingI can not add class instance to the list in another class. in Flutter
Issue I am trying to add class instance to the list but as i try it, it doesn’t shown in the list. I checked if i am even taking the input. Yes i am taking the input, it correctly adds
Continue readingWhat is factory and formJson in flutter/Dart Model class?
Issue To access data we need to pass response to a dart model. what is the purpose behind this? i tried reading the dart model code where "factory" and other keyword like "formJson" are there. what is the implementation of
Continue readingHow to call a function when launching an application
Issue I need to call a function when the application starts. I call it from the Main file, the function itself is in another file. I tried to do this, but there are no expected changes and the function in
Continue readingError while appending data to list with custom Model class(Dart)
Issue I am new to dart and I am trying to create a basic inventory app with different types of chemicals. I am trying to fetch data from firebase, which is getting back to me perfectly, but when I am
Continue readingfunctioning of covariant in flutter
Issue I was going through dart documentation and there I came across this code and this term covariant. I went through some documentation but I didn’t get what is its function there. A detailed explained answer is always appreciated. class
Continue readingAndroid create global variable which holds its state
Issue I have an application in that whenever the internet connectivity changes , I need to make some variables in another activities unclickable. Since internet connectivity might change in the first activity , hence the 2nd activity wont have any
Continue readingWhat is a radix in integer class in dart programming?
Issue I am learning dart programming language for Flutter. In the integer class what does the word radix means ? Please explain me this. Thanks Solution Sometimes we have to work with string in radix number format. Dart int parse()
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