audio - Setup AVAudioPlayer with swift 1.2? -

when tried setup avaudioplayer last time, used code:

func setupaudioplayerwithfile(file:nsstring, type:nsstring) -> avaudioplayer  {     var path = nsbundle.mainbundle().pathforresource(file, oftype:type)     var url = nsurl.fileurlwithpath(path!)     var error: nserror?     var audioplayer:avaudioplayer?     audioplayer = avaudioplayer(contentsofurl: url, error: &error)     return audioplayer! }   var buttonbeep = avaudioplayer()   buttonbeep = self.setupaudioplayerwithfile("buttonpush", type:"m4a") 

and worked perfectly. swift 1.2 seems can't that.

i tried code:

var button : avaudioplayer?  in didmovetoview:  if let button = self.setupaudioplayerwithfile("button", type:"m4a") {         self.button = button     }  func setupaudioplayerwithfile(file:nsstring, type:nsstring) -> avaudioplayer?  {     let path = nsbundle.mainbundle().pathforresource(file string, oftype: type string)     let url = nsurl.fileurlwithpath(path!)      var error: nserror?     var audioplayer:avaudioplayer?     audioplayer = avaudioplayer(contentsofurl: url, error: &error)     return audioplayer } 

it gives me error on let url line - exc_bad_instruction. put audio file in supporting files inside project. doing wrong?

update: mistake. if have same problem — make sure adding sounds target of app, not in project

try code:

var backgroundmusicplayer: avaudioplayer!  func playbackgroundmusic(filename: string) {          let url = nsbundle.mainbundle().urlforresource(filename, withextension: nil)         if (url == nil) {             println("could not find file: \(filename)")             return         }          var error: nserror? = nil         backgroundmusicplayer = avaudioplayer(contentsofurl: url, error: &error)         if backgroundmusicplayer == nil {             println("could not create audio player: \(error!)")             return         }          backgroundmusicplayer.numberofloops = -1         backgroundmusicplayer.preparetoplay()         backgroundmusicplayer.play()  } 

use way:

playbackgroundmusic("button.m4a") 

hope helps.

it working fine 1.2 , didn't test right because have updated xcode , suggest use latest version of xcode have swift version 2.0.