# pedrovgs/Renderers

Renderers is an Android library created to avoid all the boilerplate needed to use a RecyclerView/ListView with adapters.

Repository: https://github.com/pedrovgs/Renderers
Canonical: https://ross.abutalabs.com/products/renderers
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2026-01-16T10:54:18+00:00

## Health v2 (maintenance only)
Score: 51/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 62, release rhythm 8, longevity 100
- inputs: {"age_days": 4569, "days_push": 229, "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 1189, forks 169 (observed 2026-08-28T04:03:55.454800+00:00)

## What it is
An Android library that eliminates RecyclerView/ListView adapter and ViewHolder boilerplate by letting developers declare reusable Renderer classes mapped to model types. It supports differential updates via diffUpdate running transparently on background and main threads.

## Use cases
- render lists of heterogeneous items in a RecyclerView without adapter boilerplate
- reuse view rendering logic across multiple RecyclerViews and ListViews
- efficiently update list items with diff-based updates
- map different model classes to different view renderers
- clean up copy-pasted ViewHolder adapter code in Android apps

## When to choose
- you maintain a Java-based Android app with lots of RecyclerView lists
- you want reusable, composable renderers instead of monolithic adapters
- you need efficient diff-based list updates out of the box

## When to avoid
- you build with Jetpack Compose, which replaces RecyclerView entirely
- you prefer modern Kotlin-first list solutions like ListAdapter with DiffUtil
- your project targets very old Android patterns and you want minimal dependencies

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, state-management
- domain: mobile-development, android-tools, frontend
- platform: jvm
- tags: recyclerview, adapter, viewholder, diffutil, list-rendering, java, android, mobile

## Member repositories
- pedrovgs/Renderers (main) score 51

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:55.454800+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 2026-08-30T06:23:20.104285+00:00, confidence not recorded.
  - readme: https://github.com/pedrovgs/Renderers (fetched 2026-08-28T04:03:55.454800+00:00, sha 8a9e15f468a1)
- Data as of 2026-08-30T08:39:29.467469+00:00.