swift xcode play sound files from player list

Question

I am looking for a swift coding playing sound out of the player list and not sounds added as resource to your project. I mainly found the usage of NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("sound_name", ofType: "wav")) println(alertSound) but for this you need to have the sound file in your bundle. But I couldn't find any example selecting audio files bought thru itunes and play them.

Any idea how to do this? Can I access my music layer playlist files and using them in my app?

Thanks for any code lines. rpw

Eduardo Lino Eduardo Lino · Accepted Answer · 2014-09-30T18:49:57

These music files are represented by MPMediaItem instances. To fetch them, you could use an MPMediaQuery, as follows:

let mediaItems = MPMediaQuery.songsQuery().items

At this point, you have all songs included in Music App Library, so you can play them with a MPMusicPlayerController after setting a playlist queue:

let mediaCollection = MPMediaItemCollection(items: mediaItems)

let player = MPMusicPlayerController.iPodMusicPlayer()
player.setQueueWithItemCollection(mediaCollection)

player.play()

You might need to filter songs by genre, artist, album and so on. In that case, you should apply a predicate to the query before fetching the media items:

var query = MPMediaQuery.songsQuery()
let predicateByGenre = MPMediaPropertyPredicate(value: "Rock", forProperty: MPMediaItemPropertyGenre)
query.filterPredicates = NSSet(object: predicateByGenre)

let mediaCollection = MPMediaItemCollection(items: query.items)

let player = MPMusicPlayerController.iPodMusicPlayer()
player.setQueueWithItemCollection(mediaCollection)

player.play()

Cheers!

swift xcode play sound files from player list

1 Answers