# steipete/PSTCollectionView

Open Source, 100% API compatible replacement of UICollectionView for iOS4.3+

Repository: https://github.com/steipete/PSTCollectionView
Canonical: https://ross.abutalabs.com/products/pstcollectionview
Homepage: http://petersteinberger.com
Language: Objective-C
License: MIT
License Family: permissive
Archived: true
Last push: 2017-01-17T22:21:52+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5149, "days_push": 3515, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2538, forks 486 (observed 2026-08-28T04:06:59.225385+00:00)

## What it is
A 100% API-compatible open-source replacement of UICollectionView for iOS 4.3+, written in Objective-C. It lets developers use UICollectionView-style APIs on older iOS versions, with automatic PS-prefixed classes that fall back to native UICollectionView on iOS 6+.

## Use cases
- support collection views on iOS 4.3 or 5.x
- use UICollectionView API on older iOS versions
- backport UICollectionView to legacy apps
- study how UICollectionView works internally
- interoperate between UI and PST collection view classes

## When to choose
- you must support iOS versions older than 6.0 and want collection views
- you want a drop-in, API-compatible UICollectionView replacement for legacy codebases

## When to avoid
- you target iOS 6 or later, where native UICollectionView exists
- you need actively maintained or modern features
- you need perfect fidelity for advanced or custom layouts

## Facets
- artifact type: library
- maturity: abandoned
- function: ui-components, animation
- domain: mobile-development, cross-platform
- platform: -
- tags: uicollectionview, objective-c, ios4-compatibility, backport, api-compatible, ios, mobile

## Member repositories
- steipete/PSTCollectionView (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:59.225385+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 2026-08-30T02:25:12.034984+00:00, confidence not recorded.
  - readme: https://github.com/steipete/PSTCollectionView (fetched 2026-08-28T04:06:59.225385+00:00, sha 97067859f08b)
  - homepage: http://petersteinberger.com (fetched 2026-08-29T10:07:18.763252+00:00, sha 4e8e25e94ba9)
  - site_page: https://steipete.me/about (fetched 2026-08-29T10:07:18.767209+00:00, sha 14eca177acd5)
- Data as of 2026-08-30T08:39:29.467469+00:00.