ios - Cannot setup AVAudioPlayerDelegate in a Manager class -


i using manager class initialize global variable in appdelegate.swift class manage playing music in app. here's of code manager class 

import foundation import avfoundation import mediaplayer  /* protocol playerdelegate : class {     func soundfinished(sender : anyobject) }*/ var quotelist = [quote]() var israndomquote = false  enum alarmtypes { case song case quote case randomquote } var myavaudioplayer:avaudioplayer = avaudioplayer() var mpmediaplayer = mpmusicplayercontroller()  public class mediamanager: nsobject, avaudioplayerdelegate{  //weak var delegate : playerdelegate?  var mpmediaitem: mpmediaitemcollection! var quoteselected = quote()  var alarmtype = alarmtypes.randomquote  func selectrandom(){     self.alarmtype = alarmtypes.randomquote     quoteselected = pickrandomquote() } func selectsong(mpmedia: mpmediaitemcollection){     self.alarmtype = alarmtypes.song     mpmediaitem = mpmedia } func selectquote(quote: quote){     self.alarmtype = alarmtypes.quote     quoteselected = quote }    var isplaying:bool = false    override init(){     super.init()   myavaudiomanager.delegate = self  }

however when go run code error: thread 1: exc_bad_access(code = 1, address = 0x8)

i have tried making other files delegate has not worked. there way make manager delegate can respond player when finishes playing song?

i think myavaudiomanager still nil when set delegate. try create new instance of avaudioplayer before.


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