Летучий программист

collect() != collectLatest() collect() => It collects every value that theoriginal flow emits and it is recommended to use when all received data should be processed. collectLatest() => It collects every value, but stops to work for the previous value when the original flow emits a new value. It is fairly for the case when the latest data should be processed. val countFlow = flow { val startingV..

ISSUE Firebase dynamic link was needed to provide a guest account for Google Playstore reviewers as they are unable to proceed with authentication. The application might have opened directly once a tester clicked the provided link, but it only showed a grey circular indicator or redirected to the Google Playstore. According to the new policy for AOS above 13, you have to set more confidential in..

You might face to control more than two flutter versions consisting of the old version for the previous released app and the new version for the developing project as flutter is upgrading at high speed. FVM which is an abbreviation of flutter version management will definitely solve your troublesome problem. All inforamation was taken from the official resource - https://fvm.app/. 1) Install fvm..

1) Install pyenv - python version management with homebrew. (https://github.com/pyenv/pyenv) brew install pyenv 2) Set up shell environment for using pyenv. (zsh) echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.zshrc echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.zshrc echo 'eval "$(pyenv init -)"' >> ~/.zshrc # for the PATH changes to take effect. exec "$SHELL" 3)..

BuildContext => A handle to the location of a widget in the widget tree in Flutter and is used for widgets, navigation, dialogs and etc. Why global BuildContext ? => To navigate to another screen or call a dialog as a result of specific function. BuildContext is limited to use in the "build" method of stateless or stateful widget that makes troublesome for MVVM architecture where business logics..

Rive declares itself that 10x smaller and faster than widely-used Lottie and now supports Flutter that makes an app more dynamic and outstanding to attract more users 🙋🏻‍♀️ Tutorial Reference => https://www.youtube.com/watch?v=Td3xEWwRAQA Prerequisites => flutter pub add rive 1) Rive Animation in Onboarding Screen # blurred background Stack( children: [ Positioned.fill( child: BackdropFilter( fi..

ISSUE : CustomScrollView widget which consists of SlivderList(SliverChildBuilderDelegate) and is supported by riverpod state management suddenly occured the error below. Sliver-related widget doesn't show the specified widget from provider's when method (error: (err, stackTrace) => const SizedBox()) and throws an exception Error Output Code: list() { final notifications = ref.watch(notificationP..

Before - There was no null-handling in the method "firstWhere" which throws an error "Bad State" once it returns "null" value. String? title = e.inspections .firstWhere((e) => e.name == inspection.name) .value; text = Text( title ?? '-'); After - Add "orElse" caluse inside the method but note that value "null" is unavailable to set. In my case, the returned value is an object of "Inspection" tha..

Hooks ? - let us organize the logic inside a component into reusable isolated units. - let use functions instead of having to constantly switch between functions, classes, higher-order components, and render props. - are fully encapsulated and work as a isolated local state within the currently running component. - redeems statefulWidget's difficulty of logic reusability. (Ref -> https://medium...

ISSUE => table_calendar is not scrollable vertically inside the main scrollview widget. If you don't use vertical gesture for table calendar and want to make it scrollable listening to the main widget such as ListView, SingleChildScrollView, set "false" to the property of "primary" of ListView and make sure that you have blocked verticalSwipe in "availableGestures" inside Table Calendar.