# antoniolg/Kotlin-for-Android-Developers

Companion App for the book

Repository: https://github.com/antoniolg/Kotlin-for-Android-Developers
Canonical: https://ross.abutalabs.com/products/kotlin-for-android-developers
Homepage: http://antonioleiva.com/kotlin-android-developers/
Language: Kotlin
License: Apache-2.0
License Family: permissive
Topics: kotlin, kotlin-android, android-development, book
Last push: 2020-10-02T14:28:20+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": 4075, "days_push": 2161, "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 2670, forks 597 (observed 2026-08-28T04:07:09.442761+00:00)

## What it is
The companion example app for the book 'Kotlin for Android Developers' by Antonio Leiva, written in Kotlin. It lets readers follow the book chapter by chapter, building an Android app from scratch while learning Kotlin by example.

## Use cases
- learn Kotlin for Android development
- follow along with a Kotlin book's code examples
- see how an Android app is built from scratch in Kotlin
- compare Kotlin with Java for Android apps
- find example Kotlin Android project code
- migrate from Java to Kotlin on Android

## When to choose
- you are reading the book and want the matching code
- you learn best from a complete, real example app
- you are an Android developer transitioning from Java to Kotlin

## When to avoid
- you need a production-ready app template or starter kit
- you want up-to-date Android tooling - the code was last released in 2020
- you need a Kotlin language reference rather than a guided example

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools
- domain: mobile-development, tutorials, programming-languages
- platform: jvm
- tags: kotlin, android, book-companion, example-app, learning-by-example

## Member repositories
- antoniolg/Kotlin-for-Android-Developers (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:09.442761+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 2026-08-30T02:18:10.167437+00:00, confidence not recorded.
  - readme: https://github.com/antoniolg/Kotlin-for-Android-Developers (fetched 2026-08-28T04:07:09.442761+00:00, sha 51308785b12e)
  - homepage: http://antonioleiva.com/kotlin-android-developers/ (fetched 2026-08-29T10:00:46.543267+00:00, sha d38f738d8889)
  - site_page: https://antonioleiva.com/kotlin-android-developers/index.html (fetched 2026-08-29T10:00:46.545720+00:00, sha 083d83642032)
  - site_page: https://antonioleiva.com/kotlin-for-android-introduction (fetched 2026-08-29T10:00:46.547348+00:00, sha d54973c13259)
- Data as of 2026-08-30T08:39:29.467469+00:00.