# GCX-HCI/ThirtyInch

a MVP library for Android favoring a stateful Presenter

Repository: https://github.com/GCX-HCI/ThirtyInch
Canonical: https://ross.abutalabs.com/products/thirtyinch
Language: Java
License: Apache-2.0
License Family: permissive
Topics: mvp, android, mvvm, rxjava, library, activity, fragment, rxjava2, architecture
Archived: true
Last push: 2021-03-16T13:38:42+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3663, "days_push": 1996, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1020, forks 98 (observed 2026-08-28T04:03:15.265885+00:00)

## What it is
ThirtyInch is an MVP (Model-View-Presenter) library for Android that adds stateful Presenters to Activities and Fragments. Presenters survive configuration changes while Views stay dumb, sending user events and receiving data without owning logic.

## Use cases
- implement mvp architecture in android apps
- make presenters survive configuration changes
- keep activities and fragments free of business logic
- unit test android presentation logic easily
- use rxjava2 or coroutines with a presenter pattern
- separate view events from data fetching in android

## When to choose
- maintaining a legacy Android codebase already built on ThirtyInch
- you specifically want a stateful, testable MVP pattern with RxJava2 or coroutines support

## When to avoid
- starting a new Android project - the library is deprecated and unmaintained
- you prefer modern recommended architectures like MVVM with Jetpack ViewModel and Compose
- you need ongoing updates, bug fixes, or compatibility with the latest Android SDK versions

## Facets
- artifact type: library
- maturity: abandoned
- function: state-management, testing
- domain: mobile-development, android-tools, developer-tools
- platform: jvm
- tags: mvp, presenter, mvvm, rxjava2, kotlin-coroutines, deprecated, architecture, android

## Member repositories
- GCX-HCI/ThirtyInch (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:15.265885+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 2026-08-30T07:08:53.465376+00:00, confidence not recorded.
  - readme: https://github.com/GCX-HCI/ThirtyInch (fetched 2026-08-28T04:03:15.265885+00:00, sha 9bc53e3f7d9c)
- Data as of 2026-08-30T08:39:29.467469+00:00.