preferConnectedAudioDevice property
If true, alarm audio routes to a connected earphone or Bluetooth device
when one is present, falling back to the built-in speaker if not.
Uses STREAM_MUSIC and USAGE_MEDIA instead of STREAM_ALARM and
USAGE_ALARM, so the media volume slider controls the volume instead
of the alarm slider.
If false (default), audio is always forced to the built-in speaker
via USAGE_ALARM, and the alarm volume slider applies.
Has no effect on iOS. Defaults to false.
Implementation
final bool preferConnectedAudioDevice;