# plattysoft/Leonids

A Particle System for standard Android UI: http://plattysoft.github.io/Leonids/

Repository: https://github.com/plattysoft/Leonids
Canonical: https://ross.abutalabs.com/products/leonids
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2021-02-24T07:55:47+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4697, "days_push": 2016, "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 2280, forks 395 (observed 2026-08-28T04:06:33.764944+00:00)

## What it is
Leonids is a lightweight Java particle system library for the standard Android UI, letting developers add effects like explosions, fire, and confetti without a game engine or OpenGL. It is distributed as a small jar or Gradle dependency and configured with a simple fluent API.

## Use cases
- add particle effects to android app ui
- create explosion animation on button tap
- add confetti effect to android app
- fire and smoke effects without opengl
- make android app feel more playful and juicy

## When to choose
- you use standard Android views and want particle effects without pulling in a full game engine
- you want a tiny, simple library with a few-lines-of-code setup

## When to avoid
- you are building a game with OpenGL or an existing engine that already has particle systems
- you need actively maintained dependencies - the project has not been updated since 2021 and references deprecated jcenter

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components, graphics
- domain: mobile-development, graphics
- platform: jvm
- tags: particle-system, android-ui, visual-effects, game-effects, game-development, android

## Member repositories
- plattysoft/Leonids (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:33.764944+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 2026-08-30T02:41:23.027386+00:00, confidence not recorded.
  - readme: https://github.com/plattysoft/Leonids (fetched 2026-08-28T04:06:33.764944+00:00, sha 6c739162c7df)
- Data as of 2026-08-30T08:39:29.467469+00:00.