# shaojiankui/JKCategories

JKCategories(iOS-Categories,Category), a collection of useful Objective-C Categories extending iOS Frameworks such as Foundation,UIKit,CoreData,QuartzCore,CoreLocation,MapKit Etc.

Repository: https://github.com/shaojiankui/JKCategories
Canonical: https://ross.abutalabs.com/products/jkcategories
Language: Objective-C
License: MIT
License Family: permissive
Topics: categories, category, ios, jkcategories, ios-categories, objective-c, extensions
Last push: 2024-05-31T02:54:22+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4280, "days_push": 824, "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 3324, forks 923 (observed 2026-08-28T04:07:56.374744+00:00)

## What it is
JKCategories is a collection of useful Objective-C categories that extend iOS frameworks such as Foundation, UIKit, CoreData, QuartzCore, CoreLocation, and MapKit. It is distributed via CocoaPods with granular sub-specs so developers can import categories per framework or per class.

## Use cases
- add safe-access methods to NSArray and NSDictionary in iOS apps
- extend UIKit classes like UIImage, UIButton, and UIColor with helper methods
- simplify NSDate formatting and manipulation in Objective-C
- get a curated set of iOS category extensions via CocoaPods
- avoid crashes from out-of-bounds or nil access in Foundation collections
- import one header to get all categories for a framework like UIKit or Foundation

## When to choose
- you are building an iOS app in Objective-C and want battle-tested category extensions
- you want fine-grained CocoaPods subspecs to include only the categories you need
- you need safe-access helpers for Foundation collection classes

## When to avoid
- you are developing in Swift with a Swift-first codebase
- you target only modern SwiftUI projects with little UIKit/Foundation usage
- you prefer minimal dependencies and want to write only the few helpers you need

## Facets
- artifact type: library
- maturity: active
- function: ui-components, developer-tools
- domain: mobile-development, developer-tools
- platform: cross-platform
- tags: objective-c, categories, uikit, foundation, cocoapods, ios-extensions, ios, mobile

## Member repositories
- shaojiankui/JKCategories (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:56.374744+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 2026-08-29T18:41:48.566391+00:00, confidence not recorded.
  - readme: https://github.com/shaojiankui/JKCategories (fetched 2026-08-28T04:07:56.374744+00:00, sha fc08cc3f7934)
- Data as of 2026-08-30T08:39:29.467469+00:00.