# saket/InboxRecyclerView

Build expandable descendant navigation, inspired by Google Inbox

Repository: https://github.com/saket/InboxRecyclerView
Canonical: https://ross.abutalabs.com/products/inboxrecyclerview
Language: Kotlin
License: Apache-2.0
License Family: permissive
Topics: recyclerview, gesture, inbox
Last push: 2021-08-26T19:07:54+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2936, "days_push": 1833, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1960, forks 115 (observed 2026-08-28T04:05:59.374346+00:00)

## What it is
An Android library for building expandable descendant navigation with fluid expand/collapse animations, inspired by Google Inbox. It works as a drop-in replacement for RecyclerView with an expandable page layout and pull-to-collapse gestures.

## Use cases
- expand list items into a detail page with smooth animations
- implement pull-to-collapse gesture navigation in an Android app
- recreate Google Inbox-style list-to-detail transitions
- add background dimming when expanding content
- make activities pull-collapsible for consistent navigation

## When to choose
- building an Android app with list-to-detail expandable navigation
- wanting Inbox-style expand animations without writing custom gesture code
- using RecyclerView and needing a drop-in expansion solution

## When to avoid
- building with Jetpack Compose rather than View-based RecyclerView
- needing navigation patterns other than expandable descendant navigation
- targeting platforms other than Android

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, animation
- domain: mobile-development, android-tools, web-development
- platform: jvm
- tags: recyclerview, expandable-navigation, pull-to-collapse, gesture-navigation, material-design, android, mobile

## Member repositories
- saket/InboxRecyclerView (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:59.374346+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 2026-08-30T03:05:49.561076+00:00, confidence not recorded.
  - readme: https://github.com/saket/InboxRecyclerView (fetched 2026-08-28T04:05:59.374346+00:00, sha abae80344714)
- Data as of 2026-08-30T08:39:29.467469+00:00.