# ivacf/archi

Repository that showcases 3 Android app architectures: "Standard Android", MVP and MVVM. The exact same app is built 3 times following the different patterns.

Repository: https://github.com/ivacf/archi
Canonical: https://ross.abutalabs.com/products/archi
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2019-10-03T12:13:37+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4009, "days_push": 2526, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3302, forks 489 (observed 2026-08-28T04:07:55.728106+00:00)

## What it is
A showcase repository that implements the same Android app three times using different architectural patterns: Standard Android, MVP, and MVVM with data binding. It serves as a comparative learning resource for Android app architecture in Java.

## Use cases
- learn android mvp architecture
- compare mvp vs mvvm on android
- example of android data binding with mvvm
- sample android app with retrofit and rxjava
- understand why activities become god objects
- learn how to unit test presenters and viewmodels

## When to choose
- you want side-by-side comparisons of Android architectural patterns in one codebase
- you are learning MVP or MVVM with concrete Java examples
- you want a reference for RxJava, Retrofit, and data binding usage on Android

## When to avoid
- you need a production-ready architecture template with modern components like Jetpack Compose or ViewModel/LiveData
- you work in Kotlin rather than Java
- you need an actively maintained project - the last release was in 2019

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools
- domain: mobile-development, tutorials, android-tools
- platform: jvm
- tags: android-architecture, mvp, mvvm, sample-app, data-binding, rxjava, retrofit, android

## Member repositories
- ivacf/archi (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:55.728106+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 2026-08-30T07:22:40.035516+00:00, confidence not recorded.
  - readme: https://github.com/ivacf/archi (fetched 2026-08-28T04:07:55.728106+00:00, sha 67bb9cbc8437)
- Data as of 2026-08-30T08:39:29.467469+00:00.