My case is simple: I need to play a warning signal and want to make sure the user will hear it, so I want to check the system volume.
How can I find out what the cur
Swift 3.1
let audioSession = AVAudioSession.sharedInstance() var volume: Float? do { try audioSession.setActive(true) volume = audioSession.outputVolume } catch { print("Error Setting Up Audio Session") }
audioSession.setActive(true) - important
audioSession.setActive(true)