How to change an iOS device volume programmatically?

Question

Is there a way to change the device volume programmatically? maybe using audio session?

Answer 1

Hacky but works (Swift 3):

func setVolumeTo(volume: Float) {
  (MPVolumeView().subviews.filter{NSStringFromClass($0.classForCoder) == "MPVolumeSlider"}.first as? UISlider)?.setValue(volume, animated: false)
}

Don't forget to import MediaPlayer