# bluelinelabs/Conductor

A small, yet full-featured framework that allows building View-based Android applications

Repository: https://github.com/bluelinelabs/Conductor
Canonical: https://ross.abutalabs.com/products/bluelinelabs-conductor
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2026-03-14T00:59:18+00:00

## Health v2 (maintenance only)
Score: 55/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 72, release rhythm 8, longevity 100
- inputs: {"age_days": 3822, "days_push": 173, "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 3898, forks 338 (observed 2026-08-28T04:08:28.519794+00:00)

## What it is
Conductor is a small, full-featured Android framework for building View-based applications without Fragments. It wraps standard Android Views with Controllers that handle lifecycle, navigation, backstack, transitions, and state persistence.

## Use cases
- build a single-activity Android app without Fragments
- manage navigation and backstack with custom view transitions
- persist view state across configuration changes
- use MVP, MVVM, MVI, or VIPER architecture in an Android app
- handle onActivityResult and permission callbacks in a view-based architecture

## When to choose
- you want a lightweight Fragment replacement for View-based Android UIs
- you need architecture-agnostic navigation and lifecycle management
- you prefer building UI with Views rather than Jetpack Compose

## When to avoid
- you are building a Jetpack Compose-first application
- you rely heavily on AndroidX Fragments, Navigation Component, or Fragment-based libraries
- you need guaranteed API stability on the 4.0 preview line

## Facets
- artifact type: framework
- maturity: stable
- function: mobile-framework, routing, state-management, animation
- domain: mobile-development, android-tools, web-development
- platform: jvm
- tags: single-activity, view-based-ui, fragments-alternative, navigation-backstack, mvp-mvvm, controllers, android, mobile

## Member repositories
- bluelinelabs/Conductor (main) score 55

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:28.519794+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 2026-08-29T18:25:34.091458+00:00, confidence not recorded.
  - readme: https://github.com/bluelinelabs/Conductor (fetched 2026-08-28T04:08:28.519794+00:00, sha 639fcae88cbd)
- Data as of 2026-08-30T08:39:29.467469+00:00.