Issue I want to create a model user like this : @JsonSerializable() class User { final String id; final String email; final bool isAdmin; final bool canDeleteUser; final bool canCreateUser; final String nom; final String prenom; final DateTime createdDate; final
Continue readingFlutter – null check operator error in a child that should not be rendered yet
Issue I made a Loader widget which shows a loading indicator if isLoading = true and shows a child widget only if isLoading = false. The problem is when I use nullable data in the child, even though isLoading =
Continue readingCasting value results in, type 'Null' is not a subtype of type 'int' in type cast, error in Flutter
Issue I’m going through a tutorial on Flutter and am receiving a run-time error, but I’m not clear why. The error I’m receiving is, type ‘Null’ is not a subtype of type ‘int’ in type cast. However, the value of
Continue readingHow to create a flip countdown clock widget
Issue If anyone knows how to create this type of animation then please help me with it. I tried various packages from pub.dev but it’s not working. Please assist me with this. any help is appreciated Thanks Solution You can
Continue readingAnimationController.stop() called after AnimationController.dispose() – when using ScaleTap + TabBar on Flutter
Issue I have an UI with a TabBar and a button on each screen (I’m using the package ScaleTap for the button https://pub.dev/packages/flutter_scale_tap) I noticed that when I swipe through the pages on the TabBar very quickly, I get the
Continue readingHow to populate DataTable widget with data fetched from my API?
Issue So I try the code from following stack overflow answer How to populate DataTable with JSON API in flutter, and changed that as per my need but DataTable is not populated and displaying my error message "No data found…".
Continue readingCheck if selectedEndHour is more than selectedStartHour
Issue This is my dropdownlist for start time. I wanted to validate the dropdownlist under the condition that if the user chooses the end hour less than the start date, it will show an error. What are the steps in
Continue readingCheck if selectedEndHour is more than selectedStartHour
Issue This is my dropdownlist for start time. I wanted to validate the dropdownlist under the condition that if the user chooses the end hour less than the start date, it will show an error. What are the steps in
Continue readingWant to set the primarySwatch as white in flutter
Issue how to change the ‘primarySwatch’ to white in the app bar – Flutter? This is what I have: , I want to change the blueGrey (portion marked in red) to white. While trying to change this from primarySwatch: Colors.blueGrey,
Continue readingWhy this image can't be loaded whenever online Javascript code editor/interpreter is used?
Issue It seems it has to do something with AmazonAWS, perhaps those services use it. I tried to load this image in UI using DartPad (Flutter mode). There are always exceptions or error when trying to render that image. The
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