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BeaconManager#unbind throws IllegalArgumentException

See original GitHub issue

Sometimes, Beaconmanager#unbind throws an IllegalArgumentException:

Caused by: java.lang.IllegalArgumentException: Service not registered: org.altbeacon.beacon.BeaconManager$1@b639ead
1   android.app.LoadedApk.forgetServiceDispatcher   LoadedApk.java, line 1029
2   android.app.ContextImpl.unbindService   ContextImpl.java, line 1808
3   android.content.ContextWrapper.unbindService    ContextWrapper.java, line 551
4   com.example.BeaconUtils$BeaconConsumerImpl.unbindService    BeaconUtils.java, line 195
5   org.altbeacon.beacon.BeaconManager.unbind

I’m calling BeaconManager#bind and BeaconManager#unbind synchronously in a background thread. I wait for BeaconConsumer#onBeaconServiceConnect or a timeout, then I wait for MonitorNotifier#didDetermineStateForRegion or a timeout, I call BeaconManager#unbind. Occasionally, BeaconManager#unbind fails. Based on my review of your source. Two things could cause this:

BeaconManager#bind’s call to BeaconConsumer#bindService could fail. BeaconManager#bind doesn’t return this success boolean to the caller, nor does it handle this failure in any way internally. If we later call BeaconManager#unbind, the call will throw the IllegalArgumentException described above.

BeaconManager#beaconServiceConnection could receive an #onServiceDisconnected callback after BeaconManager#bind is called. Since BeaconManager#beaconServiceConnection is already unbound, when we later call BeaconManager#unbind, the call will throw the IllegalArgumentException described above.

Please make BeaconManager#bind return a success boolean, and add a onBeaconServiceDisconnect method to BeaconConsumer.

Thanks!

Issue Analytics

State:
Created 9 years ago
Comments:7 (3 by maintainers)

Top GitHub Comments

2reactions

vinceramcesoliveroscommented, Aug 2, 2018

just want to say Hi because I get an error to a different platform, although it is somewhat related. I’m using Flutter project, I created an issue to the guy created the package using altbeacons. then i get this error.

Edit: kinda fixed the issue now by commenting beaconClient.unbind().

0reactions

davidgyoungcommented, Aug 6, 2021

closed per #1046

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