I am still learning Flutter and have been having a blast, this has been the fastest I've developed a mobile app ever. I am having a bit of trouble with null safety: Null check operator used on a null value…
With Dart SDK 2.x.x. it was okay to use any class as mixin. But with Dart 3 this is no longer allowed as stated in the documentation: https://dart.dev/resources/dart-3-migration#mixin Now I struggle with the migration. For example, I used the Comparable…
I have recently migrated from Dart 2 to Dart 3 and have noticed that Class Modifiers have been added, including interface class. They work perfectly fine when setting properties, but when it comes to methods, it throws an error stating…
I'm making a Flutter app with Firebase and I'm still stuck on the authentication because wether I Sign in or Sign Up, it redirects me to HomePage(). In my auth_page.dart class, I have a bool showLogin which toggles between LoginPage…
I need the flutter_gifimage package for my project. But I am getting this warning. If the package is critical for my project and there is no alternative available, should I consider disabling null safety for my entire project. Is it…
I have the following method that contains a Flutter dialog. This dialog serves the purpose of a filter menu. Here is the code: Future<void> _showFilterDialog() async { await showDialog<void>( context: context, builder: (BuildContext context) { return SimpleDialog( // <-- SEE…
Error: The getter 'value' isn't defined for the class 'XmlNode'. 'XmlNode' is from 'package:xml/src/xml/nodes/node.dart' ('/C:/Users/User/AppData/Local/Pub/Cache/hosted/pub.dev/xml-6.2.2/lib/src/xml/nodes/node.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named 'value'. .map((node) => node.value) Anyone had experience…
I'm Trying To Show A Slider Using The Following Package fan_carousel_image_slider 0.1.2 Full Error Text: _AssertionError ('package:fan_carousel_image_slider/src/image_slider.dart': Failed assertion: line 49 pos 16: 'initalPageIndex <= (imagesLink.length - 1) && initalPageIndex >= 0': is not true.) I Tried To Change Attributes…
I recently started with Flutter and I love how it works. I need to create an App for iOS and Android for the company I work for, so I started with Flutter. Our website uses Wordpress so I am trying…
How do I limit these chat bubbles to a max certain width (about middle of the screen) and also make long messages extend downwards, i.e. wrap text? The chat message: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vel…