CODEWITHSUNDEEP
iosswiftapple-musickit
ab1428x
ab1428x

Reputation: 804

Swift - open the music app and play specific album

I'm having problems with finding out information or a documentation on how to open the music app with a specific album and playing it.

The closest I found right now is 

        let url = URL(string: "music://")
    UIApplication.shared.open(url!, options: [:], completionHandler: nil)

I've tried a few combinations with the path and options but no luck, it always just opens the app and does nothing beyond that.

I initially thought this would open through the MPMediaPlayer but that just plays it in the app and is now what I need.

Upvotes: 0

Views: 1714

Answers (2)

Michael N
Michael N

Reputation: 563

For MPMediaQuery

Please review this post.

For Apple Music and MusicKit

https://developer.apple.com/documentation/MusicKit/

As of June 2024, if the MusicKit song is an iTunes song, you cannot use the URL. You need to decode the playParameters of the response object to find the musicKit_persistentID and then pass that into an MPMediaQuery for use in the MPMusicPlayerController.systemMusicPlayer. The musicKit_persistentID maps to persistentID on MPMediaItem:

https://developer.apple.com/documentation/mediaplayer/mpmediaitem/1621766-persistentid

If the song is an Apple Music song, requiring a subscription, sometimes using the response ID works, sometimes it does not. I don’t have a clear answer for Apple Music subscription songs as each data set for each Apple Music module contains different class types. Playlists work differently than Library requests.

The code below assumes you are using a MusicKit song:

https://developer.apple.com/documentation/musickit/song

https://developer.apple.com/documentation/musickit/song/playparameters

Here's some pseudo code that helps illustrate the issue:

let data = try JSONEncoder().encode(
    song.playParamaters
)

let playParameters = try JSONDecoder().decode(
    MPMusicPlayerPlayParameters.self,
    from: data
)

let queue = MPMusicPlayerPlayParametersQueueDescriptor(
    playParametersQueue: [
        playParameters
    ]
)
    
if let catalogId = playParameters.dictionary["musicKit_persistentID"] as? String {
            
    var pID = Int64(catalogId) ?? 0
    
    var persistentID : UInt64 = 0
    
    if pID < 0 {
        
        persistentID = UInt64(bitPattern: Int64(pID))
        
    } else {
        
        persistentID = UInt64(pID)
        
    }
    
    // MPMediaQuery
                                    
    let everything : MPMediaQuery = MPMediaQuery.init()
            
    let predicate = MPMediaPropertyPredicate.init(
        value: persistentID,
        forProperty: MPMediaItemPropertyPersistentID
    )
    
    everything.addFilterPredicate(predicate)
            
    if let collection = everything.collections?.first {
        
        if collection.items.first?.isCloudItem ?? false {
            
            // Apple Music
            
            DispatchQueue.main.async {
                
                MPMusicPlayerController.systemMusicPlayer.setQueue(
                    with: [song.id]
                )
                                                                    
                MPMusicPlayerController.systemMusicPlayer.nowPlayingItem = collection.items.first
                
                MPMusicPlayerController.systemMusicPlayer.prepareToPlay()
                
                MPMusicPlayerController.systemMusicPlayer.currentPlaybackTime = 0
                
                MPMusicPlayerController.systemMusicPlayer.play()
                
            }
            
        } else {
            
            // downloaded iTunes Purchase

            DispatchQueue.main.async {
                
                MPMusicPlayerController.systemMusicPlayer.setQueue(
                    with: collection
                )
                
                MPMusicPlayerController.systemMusicPlayer.nowPlayingItem = collection.items.first!
                
                MPMusicPlayerController.systemMusicPlayer.prepareToPlay()
                
                MPMusicPlayerController.systemMusicPlayer.currentPlaybackTime = 0
                
                MPMusicPlayerController.systemMusicPlayer.play()
                
            }
            
        }
        
    }

}

Upvotes: 0

matt
matt

Reputation: 534895

You want the MPMusicPlayerController systemMusicPlayer.

https://developer.apple.com/documentation/mediaplayer/mpmusicplayercontroller

It is the Music app.

Upvotes: 2

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