Flutter - Generic json serializer with Dart

I'm new in Flutter and trying to implement something similar to Swift generic decodable, like below: <pre><code>struct ParentJson&lt;T&gt;: Decodable where T: Dec...

Is it possible to pass generic params to Riverpod

I've recently created my own customized widget and its state is handled by using riverpod with a predefined data type now I want to choose the type of data from...

Is there any way to use Streamcontroller in generic map?

<h1>Updated Comment</h1> <ul> <li>I found the package that behaves almost the same as I am trying. Try <code>event_bus</code> <a href="https://pub.dev/packages/event_bus"...

How can we get object index based on object property from a generic function? | Dart

I've got a nicely setup set of generic functions for my database crud actions. I need a little more fine grained control for a few specialized functions. I want to be...

Dart correct way to specify generic argument type on callback function

I'vo got a strange error, for a class similar to this one: <pre class="lang-dart prettyprint-override"><code>class UpdatableListPage&lt;T&gt; extends ConsumerState...

Flutter - How to parsed nested json to a class with generics?

I'm wondering how can I parse a nested json to a class with generic types. My intention is to wrap responses from the backend (like loginRespose that contains a token)...

Why are stateful widgets defined as two classes in flutter?

I'm new to flutter/dart, so while I try to make an app I also try to understand why things are a certain way. In the flutter docs there is example code of a stateful w...

Freezed class with generic callback

I would like to define a freezed class [https://pub.dev/packages/freezed] with a generic callback. Freezed class: <pre><code>import 'package:freezed_annotat...

How can I make Generics work in Dart language?

I am totally new to <code>Dart</code> and <code>class</code> OOP, please help me understand the issue I have mentioned below in my comments in my code. <pre><code...

Why isnt my sub class that implements/extends a parent class recognized as a sub type of the parent class in Dart Flutter?

I have the <code>ProjectModel</code> class which implements <code>IIdentified</code> class. But during runtime, I get an error that <code>ProjectModel</code> is not a...

Why cant a dart generic class determine its type based on constructor

I am writing my own MyFutureBuilder for my FutureBuilders do the same thing every time (except working with the snapshot data for which I specify my separate function)...

Flutter: Generics assignment is not working on extended types of T

Why this generic classes throw errors? Since <code>T extends DataModel</code>, it should allow to assign instances of <code>DataModel</code> but isn't. <pre class=...

Dart: Why do we declare only one type when using generics?

Consider this example: <pre><code>typedef ItemWidgetBuilder&lt;T&gt; = Widget Function(Buildcontext context, T item); </code></pre> note: <em>This code snippet...

Dart Result with TypeError Exception

I have the following <code>Result</code> object: <pre><code>class Result&lt;T&gt; { Result._(); factory Result.success(T t) = ResultSuccess&lt;T&gt;; facto...

Having trouble creating generic Dart constructor for Json conversion

To all Dart gurus: I'm trying to implement a generic networking layer in Dart that converts REST service response to a specified model class: <pre><code>// The ide...