How to Fix Android ANR(App Not Responding) issues?

Apr 04, 2025

∙ Paid

ANR (Application Not Responding) issues are among the important issues that App developers needs to fix. It is listed in Crash and ANR section, same level with the crashes.

Basically, it happens when UI thread is blocked with some work. If this work lasts more than 5 sec, then ANR is logged. Some possible reasons and solutions are listed here: https://developer.android.com/topic/performance/vitals/anr

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On Google Play Console, in Monitor and Improve → Android Vitals →Crashes and ANRs section, you can find the ANR stacktraces. In this blog post, I will focus on ANRs happening with RxJava pipelines.

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