The Infinite Scroll Rite of Passage
In Part 1: Taming Flutter Infinite Scroll: Why 3 Lines of async* Missed the Point, and How BlocSignal Fixes It, we explored why wrapping mutable state in async* generators and StreamIterator cracks under pressure when users rapidly fling a list. We demonstrated how BlocSignal’s streamless droppable() transformer solves thumb-flinging race conditions synchronously at the event boundary without Rx streams or microtask lag.
Yet, even after solving event concurrency with a pure BLoC, many Flutter developers are left with a nagging architectural itch.
Search pub.dev for "infinite scroll" or "pagination", and you will find dozens of packages—infinite_scroll_pagination, lazy_load_scrollview, flutter_pagewise, loadmore. It is practically a rite of passage for every Flutter developer to install at least one of them.
Why do these packages exist in such numbers?
