ANR at android.os.MessageQueue.nativePollOnce

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We are seeing this ANR in different parts of our app. Wanted to understand what causes this ANR?

main (native): tid=1 systid=31940
#00 pc 0x5431c libc.so 
#01 pc 0x1313a5 libart.so 
#02 pc 0x2ab05b libart.so 
#03 pc 0x3659 libnativehelper.so 
#04 pc 0x9dee9 libandroid_runtime.so 
#05 pc 0x65c45 libgui.so 
#06 pc 0x11dcd libutils.so 
#07 pc 0x11abf libutils.so 
#08 pc 0xbcc7d libandroid_runtime.so 
       at android.os.MessageQueue.nativePollOnce(MessageQueue.java)
       at android.os.MessageQueue.next(MessageQueue.java:339)
       at android.os.Looper.loop(Looper.java:199)
       at android.app.ActivityThread.main(ActivityThread.java:8276)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:612)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1006)

This is what firebase has to say about this ANR -

This thread was idle when the ANR occurred. We don't have sufficient information to determine the root cause.

android-looper firebase android-anr-dialog android performance
2 Answers
user_83925290

On the latest release of Cloud Messaging dependencies v23.0.7 Firebase Mention that this release might reduce the ANR. here is his words mentioned in its documentation.

Message broadcasts now finish immediately after binding to the service. This change should reduce the chance of ANRs

user_95231180
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