# romainguy/google-io-2014

Demo for the Material Witness talk I gave at Google I/O.

Repository: https://github.com/romainguy/google-io-2014
Canonical: https://ross.abutalabs.com/products/google-io-2014
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2014-12-08T19:44:28+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4450, "days_push": 4286, "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 1248, forks 263 (observed 2026-08-28T04:04:07.829715+00:00)

## What it is
A demo Android application from Romain Guy's Google I/O 2014 'Material Witness' talk showcasing the Material Design APIs introduced in the Android L Preview SDK. It demonstrates custom theme colors, dynamic palettes, circular reveals, and activity transitions.

## Use cases
- learn how to implement material design animations on android
- see examples of activity transitions in android
- understand circular reveal animations
- use the palette api to extract colors from images
- study a sample android app from google io 2014

## When to choose
- you want a reference for Android L-era Material Design APIs
- you are learning Android UI animation techniques from a well-crafted example

## When to avoid
- you need a maintained library for modern Android development
- you target Android APIs newer than the L Preview era
- you want production-ready code

## Facets
- artifact type: application
- maturity: abandoned
- function: animation, ui-components, graphics
- domain: mobile-development, android-tools, education
- platform: -
- tags: material-design, android-l-preview, demo-app, sample-code, java, android, mobile

## Member repositories
- romainguy/google-io-2014 (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:07.829715+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 2026-08-30T05:07:54.462670+00:00, confidence not recorded.
  - readme: https://github.com/romainguy/google-io-2014 (fetched 2026-08-28T04:04:07.829715+00:00, sha dee0813a3f1d)
- Data as of 2026-08-30T08:39:29.467469+00:00.