Bolter #

Are you tired of complex state management solutions for your Flutter applications? Introducing Bolter, a simple yet powerful state management solution that streamlines your app's performance and improves code readability. Here, we'll walk you through the Bolter state manager and show you how it can transform the way you build your Flutter apps. Say goodbye to the headaches of traditional state management and welcome a new era of simplicity and efficiency!

Features #

• Listen to changes in values by providing a Getter function and a BolterNotification function.
• Notify listeners only when the result of calling the Getter function has changed.
• Optionally notify listeners either globally or for a specific BolterNotification based on whether an exactNotification was provided.

Usage #

To use the Bolter, you need to create an instance of the Bolter class and call its methods as needed.

final bolter = Bolter();

bolter.listen(
() => myValue,
() => print('Value has changed!'),
);

bolter.shake();

bolter.runAndUpdate(
action: () => doSomething(),
afterAction: () => print('Action is complete!'),
);

bolter.stopListen(() => print('Value has changed!'));

bolter.clear();

Performance #

The performance of the Bolter class is generally acceptable for a moderate number of listeners. The code caches the hash code of the result of calling the Getter functions, which helps to avoid unnecessary calls and improve performance. However, if the number of listeners becomes very large, or the Getter functions are expensive to compute, the performance may become an issue and additional optimizations may be necessary. The code includes a kProfileBolterPerformanceLogging flag, which can be used to log the time taken for notifying all listeners and assist with profiling the performance of the code.

Contributing #

Contributions are welcome! If you find a bug or have an idea for a new feature, please open an issue or submit a pull request.