Overview
The anchor_scroll_controller package provides a ScrollController that supports anchoring, enabling precise scrolling to specific indices and listening to index changes during user-driven scrolling. It enhances scroll interactions by allowing developers to track and respond to the current visible item in a scrollable list, making it ideal for scenarios like navigation menus, infinite lists, or synchronized UI elements. Built with cross-platform support, it works seamlessly across Android, iOS, Web, macOS, Windows, and Linux.
Use cases
- Scrolling to specific list items
- Tracking visible index during user scroll
- Synchronizing scroll position with UI elements
- Building navigation menus with scroll awareness
- Implementing infinite scroll with anchor tracking
Key features
- Supports scrolling to index
- Listens to index changes during scroll
- Cross-platform compatibility
- Easy integration with ListView or Scrollable widgets
- Provides smooth anchor-based scrolling
Suitable for
- Developers building scroll-aware UIs
- Apps requiring precise scroll positioning
- Navigation systems tied to scroll state
- Infinite or dynamic list implementations
Considerations
- Requires manual handling of anchor logic
- May need additional state management
- Not suitable for simple static scrolling
- Performance impact with very large lists
- Limited to indexed scrollable content