# sureJiang/MSRotationTabBar

UITabBar Rotation Animation Demo

Repository: https://github.com/sureJiang/MSRotationTabBar
Canonical: https://ross.abutalabs.com/products/msrotationtabbar
Language: Objective-C
License: MIT
License Family: permissive
Last push: 2020-12-27T06:39:19+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": 2350, "days_push": 2075, "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 1237, forks 23 (observed 2026-08-28T04:04:05.359727+00:00)

## What it is
An Objective-C demo library that animates UITabBar items with a rotation effect using Core Animation and the responder chain. It provides a drop-in example for adding playful rotation animations to iOS tab bars.

## Use cases
- animate tab bar icons when switching tabs
- add rotation animation to UITabBar in an iOS app
- learn Core Animation with the responder chain
- make tab bar items spin on selection
- customize tab bar interaction effects in Objective-C

## When to choose
- you want a quick, lightweight tab bar rotation animation in an Objective-C or Swift iOS project
- you want a simple reference implementation of Core Animation on UITabBar

## When to avoid
- you need a fully customizable modern tab bar library with extensive theming
- you need actively maintained Swift-first UI components
- you target platforms other than iOS

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components
- domain: mobile-development, frontend
- platform: -
- tags: uitabbar, core-animation, objective-c, demo, rotation-animation, ios, mobile

## Member repositories
- sureJiang/MSRotationTabBar (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:05.359727+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 2026-08-30T08:21:54.685818+00:00, confidence not recorded.
  - readme: https://github.com/sureJiang/MSRotationTabBar (fetched 2026-08-28T04:04:05.359727+00:00, sha 3868d5e8707b)
- Data as of 2026-08-30T08:39:29.467469+00:00.