How to make a button in Xcode that globally stops AVAudioPlayer? - swift

Question

I'm trying to make a tableviewcell stop all sounds in the app when it is clicked. I know how to stop sounds with soundEffect.stop() soundEffect.currentTime = 0, but I don't know how to apply this to a cell and this doesn't work if the StopSound button is on another viewController with a different class. How do I make a function that globally stops AVAudioPlayer and apply that to a cell?

Answer 1

The problem is that the player is not alone. Try this.
To stop AVAudioPlayer on another ViewController you may use NotificationCenter.
Example...
First time, add function at VC, where you need to stop AVAudioPlayer.
#objc func stopAVonThisVC() {
AVaudioPlayer.stop()
}
Second, add NotificationCenter observer at this VC, and after just post on tap button.
// At VC, where you need to stop AVAudioPlayer.
NotificationCenter.default.addObserver(self, selector:
#selector(stopAVonThisVC), name: NSNotification.Name("Stop at VC1"), object: nil)
// At VC2
NotificationCenter.default.post(name: NSNotification.Name("Stop at VC1"), object: nil)
Sorry for poor english.

Answer 2

Create a BaseViewController for your project and subclass all your view controllers from there,
Define the AVAudioPlayer in BaseViewController and invoke soundEffect.stop() soundEffect.currentTime = 0 from any of your subclass, it should resolve the issue.
Example:
class BaseViewController: UIViewController {
var audioPayer: AVAudioPlayer!
}
class ViewControllerA: BaseViewController {
//start or stop audio player
}
class ViewControllerB: BaseViewController {
//start or stop audio player
}