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https://github.com/aleksanderwozniak/deer

Minimalist Flutter Todo App, built using BLoC pattern
https://github.com/aleksanderwozniak/deer

bloc bloc-pattern dart deer flutter flutter-bloc-pattern minimalist task todo

Last synced: 28 days ago
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Minimalist Flutter Todo App, built using BLoC pattern

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Deer




Minimalist Todo Planner app built around the idea of efficiency and clean aesthetic.



Awesome Flutter

## Showcase















Get it on Google Play

## Development

Deer uses BLoC (Business Logic Component) pattern to manage app state. If you want to use Streams in your Flutter project, then I think this is the way to go. BLoC plays exceptionally well with Flutter's reactive nature, especially since Flutter has built-in `StreamBuilder` widget.

Each screen is splitted into 4 files:
- actions
- bloc
- screen (UI itself)
- state

Instead of calling `setState()` in screen file, an action is pushed to bloc's input `Stream`.
Then, bloc resolves that action and updates the output `Stream`. Every state update is listened to inside screen with `StreamBuilder`, which updates the UI when needed. This way we achieve clear separation of concerns.

Usually with BLoC, `Sink` is used for input Stream, and `BehaviorSubject` for output Stream.

Check those resources for more details on the pattern:
- https://youtu.be/PLHln7wHgPE
- https://youtu.be/RS36gBEp8OI

#### Using built_value
```
flutter packages pub run build_runner build --delete-conflicting-outputs
```