# MoZhouqi/KMNavigationBarTransition

A drop-in universal library helps you to manage the navigation bar styles and makes transition animations smooth between different navigation bar styles while pushing or popping a view controller for all orientations. And you don't need to write any line of code for it, it all happens automatically.

Repository: https://github.com/MoZhouqi/KMNavigationBarTransition
Canonical: https://ross.abutalabs.com/products/kmnavigationbartransition
Language: Objective-C
License: MIT
License Family: permissive
Topics: kmnavigationbartransition, navigationbar, transition, transition-animations, navigationbar-transition
Last push: 2023-10-02T12:35:41+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": 3894, "days_push": 1066, "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 3347, forks 445 (observed 2026-08-28T04:07:57.652103+00:00)

## What it is
KMNavigationBarTransition is a drop-in iOS library that manages UINavigationBar background styles across a navigation stack and renders smooth transition animations when pushing or popping view controllers, in all orientations. It works automatically via Objective-C method swizzling, so developers only set the desired navigation bar style in each view controller without writing transition code.

## Use cases
- make navigation bar transitions smooth when pushing and popping view controllers in ios
- manage different navigation bar background styles per view controller
- fix jarring navigation bar style changes during push/pop animations
- automatically restore the previous navigation bar style when popping back
- avoid writing boilerplate code for navigation bar appearance transitions
- support navigation bar style transitions in all orientations on ios

## When to choose
- you are building a UIKit-based iOS app where different screens need distinct navigation bar styles
- you want a zero-configuration drop-in solution that requires no imported headers or transition code
- your project is in Objective-C or Swift and targets iOS versions before built-in appearance handling was sufficient

## When to avoid
- you are building a SwiftUI-only app, since the library targets UIKit navigation controllers
- you rely on 3D Touch peek/pop or other deprecated iOS features mentioned in its known issues
- you need a library under active development with support for the newest iOS APIs

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components
- domain: mobile-development, frontend
- platform: -
- tags: uikit, uinavigationbar, navigation-bar, transition-animations, objective-c, method-swizzling, drop-in, view-controllers, ios, mobile

## Member repositories
- MoZhouqi/KMNavigationBarTransition (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:57.652103+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 2026-08-29T18:40:59.911897+00:00, confidence not recorded.
  - readme: https://github.com/MoZhouqi/KMNavigationBarTransition (fetched 2026-08-28T04:07:57.652103+00:00, sha 840310e7dfdf)
- Data as of 2026-08-30T08:39:29.467469+00:00.