# markzhai/AndroidPerformanceMonitor

A transparent ui-block detection library for Android. (known as BlockCanary)

Repository: https://github.com/markzhai/AndroidPerformanceMonitor
Canonical: https://ross.abutalabs.com/products/androidperformancemonitor
Language: Java
License: Apache-2.0
License Family: permissive
Topics: android, performance, monitor, apm, blockcanary, anr, detection-library
Last push: 2023-07-15T06:37:52+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": 3881, "days_push": 1145, "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 6729, forks 1020 (observed 2026-08-28T04:09:48.134962+00:00)

## What it is
A transparent UI-block detection library for Android, known as BlockCanary, that monitors main-thread stalls and ANR-like jank with one-line setup. It logs and displays block events with configurable context, white-lists, and notification-based reporting.

## Use cases
- detect ui thread blocks in my android app
- find causes of anr and jank in android
- monitor main looper stalls during development
- profile slow frame rendering on android
- get notifications when the ui thread freezes

## When to choose
- you are debugging UI jank or ANRs on Android and want lightweight, transparent detection
- you want a debug-build-only monitor with minimal integration code

## When to avoid
- you need full APM/production telemetry rather than local block detection
- your app already overrides getMainLooper().setMessageLogging()
- you need actively maintained support for the latest Android versions

## Facets
- artifact type: library
- maturity: maintenance
- function: monitoring, logging, developer-tools
- domain: mobile-development, performance, developer-tools
- platform: -
- tags: apm, blockcanary, anr-detection, ui-block, java, android-library, android

## Member repositories
- markzhai/AndroidPerformanceMonitor (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:48.134962+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 2026-08-29T17:42:53.138825+00:00, confidence not recorded.
  - readme: https://github.com/markzhai/AndroidPerformanceMonitor (fetched 2026-08-28T04:09:48.134962+00:00, sha 3367b3bc8e10)
- Data as of 2026-08-30T08:39:29.467469+00:00.