My app plays audio. I would like to support the following:
- By default, the audio plays using the speakerphone. I can do this with
AudioManager.setSpeakerphoneOn(true)
- The hardware volume buttons control the audio level, and the volume
level is displayed with a caption of "In-call volume". I can do this using
Activity#setVolumeControlStream(AudioManager.STREAM_VOICE_CALL).
- FWIW, I also call AudioManager.setMode(AudioManager.MODE_NORMAL).
AudioManager.MODE_IN_COMMUNICATION would be better, but it is Level 11,
and
I need to support older Android versions.
- If the user plugs in a headset (earphones), the audio switches to using
the headset. This requires turning off the speakerphone. However, I don't
know if there is any callback which indicates that the user has plugged in
and removed the headset.
How can I enable automatically switching between the speakerphone and (if
plugged in) the headset?
Thanks
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