https://github.com/bizz84/multiple-counters-flutter

Flutter State Management [ setState ❖ StreamBuilder ❖ scoped_model ❖ redux ]
https://github.com/bizz84/multiple-counters-flutter

android asynchronous-programming dartlang flutter ios state-management streams

Last synced: about 1 month ago
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Flutter State Management [ setState ❖ StreamBuilder ❖ scoped_model ❖ redux ]

• Host: GitHub
• URL: https://github.com/bizz84/multiple-counters-flutter
• Owner: bizz84
• License: mit
• Created: 2018-06-13T19:33:59.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-09-30T23:06:09.000Z (about 4 years ago)
• Last Synced: 2024-11-01T13:34:47.971Z (about 1 month ago)
• Topics: android, asynchronous-programming, dartlang, flutter, ios, state-management, streams
• Language: Dart
• Homepage: https://codewithandrea.com/
• Size: 407 KB
• Stars: 132
• Watchers: 7
• Forks: 37
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

• awesome-state - multiple-counters-flutter

README

        
## Flutter State Management

This is a sample app showing four different approaches to managing state in Flutter:

### [`setState`](https://docs.flutter.io/flutter/widgets/State/setState.html) vs [`StreamBuilder`](https://docs.flutter.io/flutter/widgets/StreamBuilder-class.html) vs [`scoped_model`](https://pub.dartlang.org/packages/scoped_model) vs [`redux`](https://pub.dartlang.org/packages/redux)

**Use case: manage multiple counters, synced with Firebase Database.**

Watch my video for a full overview of the differences and tradeoffs between these techniques:

[![](screenshots/poster-state-management.png)](https://youtu.be/HLop7s2sJ7Q)

Supported tasks:

- Show a list of counters

- Add new counters

- Increment or decrement existing counters

- Remove counters (swipe left to dismiss)

## Database

The app uses Firebase as a source of truth for the state of the counters. This allows the data to be **easily synced** across multiple clients. Realtime Database and Cloud Firestore are both supported (see `database.dart` class).

**NOTE**: For simplicity, the whole database has public read/write access, and counters can't be set per-user. For a production app it would be more appropriate to set user access rules.

## State management

The same functionality is replicated in four different pages accessible via the bottom navigation bar, using different state management techniques:

* [`setState`](https://docs.flutter.io/flutter/widgets/State/setState.html)

* [`StreamBuilder`](https://docs.flutter.io/flutter/widgets/StreamBuilder-class.html)

* [`scoped_model`](https://pub.dartlang.org/packages/scoped_model)

* [`redux`](https://pub.dartlang.org/packages/redux)

## Running the project

You need to register the project with your own Firebase account.

- Use `com.musevisions.multipleCountersFlutter` as your bundle / application ID when generating the Firebase project.

- Download the `ios/Runner/GoogleService-Info.plist` and `android/app/google-services.json` files as needed.

### For more articles and video tutorials, check out [Coding With Flutter](https://codingwithflutter.com/).

### [License: MIT](LICENSE.md)