# timusus/RecyclerView-FastScroll

A simple FastScroller for Android's RecyclerView

Repository: https://github.com/timusus/RecyclerView-FastScroll
Canonical: https://ross.abutalabs.com/products/recyclerview-fastscroll
Language: Java
License: NOASSERTION
License Family: other
Last push: 2023-08-13T14:12:22+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3886, "days_push": 1116, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1401, forks 185 (observed 2026-08-28T04:04:37.212260+00:00)

## What it is
An Android library that adds a FastScroller to RecyclerViews, mimicking the Lollipop ListView fast-scroll behavior with a draggable thumb and section popup. It supports vertical lists using LinearLayoutManager or GridLayoutManager.

## Use cases
- add fast scrolling to a long RecyclerView list
- show a section popup while scrolling an alphabetized list
- support fast scroll in grid layouts
- customize fast-scroll thumb and popup colors
- detect when fast-scrolling starts and stops

## When to choose
- you have a long vertical RecyclerView and want quick navigation
- you want a Lollipop-style fast scroller with section popups
- you need grid or linear layout manager support with customizable styling

## When to avoid
- you need horizontal RecyclerView fast scrolling
- your list items have highly variable heights driven by dynamic text content
- you need a library under a standard permissive license or active development

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, mobile-framework
- domain: mobile-development, android-tools, frontend
- platform: jvm
- tags: recyclerview, fast-scroll, android-ui, scrollbar, listview, android

## Member repositories
- timusus/RecyclerView-FastScroll (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:37.212260+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:39:04.383510+00:00, confidence not recorded.
  - readme: https://github.com/timusus/RecyclerView-FastScroll (fetched 2026-08-28T04:04:37.212260+00:00, sha cc4930575fb2)
- Data as of 2026-08-30T08:39:29.467469+00:00.