Background Thread Usage

[devunwired]

Android's HandlerThread class provides the same functionality built-in that is currently implemented by ImageClassificationThread without the need to manage the Looper directly.

Also there are a few spuriously created threads in various control classes (e.g. LightRingControl ) that could be consolidated as operations on a single background HandlerThread.

[proppy]

+1 and also maybe consider using delayed post on a handler rather than blocking sleep:
https://github.com/Deeplocal/android-things-handbot/blob/master/app/src/main/java/com/example/sewl/androidthingssample/LightRingControl.java#L81
https://github.com/Deeplocal/android-things-handbot/blob/master/app/src/main/java/com/example/sewl/androidthingssample/RockPaperScissors.java#L217