how to turn speaker on/off programmatically in android Pie and UP

Question

Same as this question and many others from a few years ago: how to turn speaker on/off programmatically in android 4.0

It seems that Android has changed the way it handl

Answer 1

In Android Pie, I had the same problem. I resolved it using an InCallService with

setAudioRoute(ROUTE_SPEAKER)

Your app needs to be Default phone app.