Offline
A Flutter utility for handling offline/online connectivity with reactive UI updates and retry functionality.
What is Offline?
Flutter Offline is a utility package for Flutter applications that manages network connectivity state. It detects when the device goes offline or online and provides widgets to update the UI accordingly, solving the problem of handling network-dependent features gracefully.
Flutter developers building mobile, web, or desktop applications that need to respond to network connectivity changes, especially those implementing offline-first features or requiring user feedback during connectivity issues.
Developers choose Flutter Offline because it offers a simple, declarative API with built-in retry logic and cross-platform support, eliminating the need to manually manage connectivity listeners and state across different platforms.
Overview
✈️ A tidy utility to handle offline/online connectivity like a Boss
Use Cases
Best For
- Displaying a connectivity status banner or indicator in Flutter apps
- Implementing offline-first features with automatic UI updates
- Adding manual retry buttons with exponential backoff for network requests
- Building cross-platform apps that need consistent connectivity handling
- Reducing boilerplate code for network state management
- Creating responsive UIs that adapt to online/offline transitions
Not Ideal For
- Applications requiring offline data synchronization and caching beyond connectivity status
- Projects using state management like BLoC or Riverpod that prefer native integration over ChangeNotifier
- Apps with complex network logic needing fine-grained control over individual requests
Pros & Cons
Pros
Automatically monitors network status across all platforms including iOS, Android, Web, macOS, Linux, and Windows, as stated in the README, ensuring consistent behavior.
Uses the OfflineBuilder widget to declaratively rebuild UI components when connectivity changes, reducing boilerplate code for state management.
Provides OfflineRetryController with exponential backoff and customizable retry limits, allowing robust manual retry strategies, as demonstrated in the code examples.
Allows overriding onRetry() and onRetryError() methods for custom behavior, making it adaptable to specific app needs without modifying core logic.
Cons
Only manages connectivity state; lacks features for data caching, synchronization, or offline storage, requiring additional packages for full offline functionality.
Requires manually adding INTERNET permission to the Android manifest, which can be easily overlooked and cause build or runtime issues on Android.
Built on Flutter's ChangeNotifier, which might not integrate seamlessly with other state management solutions like Provider or Bloc without extra configuration.
Frequently Asked Questions
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