axiom-now-playing-musickit

MusicKit Integration (Apple Music)

Time cost: 5-10 minutes

Key Insight

MusicKit's ApplicationMusicPlayer automatically publishes to MPNowPlayingInfoCenter. You don't need to manually update Now Playing info when playing Apple Music content.

What's Automatic

When using ApplicationMusicPlayer:

• Track title, artist, album
• Artwork (Apple's album art)
• Duration and elapsed time
• Playback rate (playing/paused state)

The system handles all MPNowPlayingInfoCenter updates for you.

What's NOT Automatic

• Custom metadata (chapter markers, custom artist notes)
• Remote command customization beyond standard controls
• Mixing MusicKit content with your own content

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Subscription and Authorization

Check Music Authorization

import MusicKit

func requestMusicAccess() async -> Bool {
    let status = await MusicAuthorization.request()
    return status == .authorized
}

// Check current status without prompting
let currentStatus = MusicAuthorization.currentStatus
// .authorized, .denied, .notDetermined, .restricted

Check Apple Music Subscription

func checkSubscription() async -> Bool {
    do {
        let subscription = try await MusicSubscription.current
        return subscription.canPlayCatalogContent
    } catch {
        return false
    }
}

// Observe subscription changes
func observeSubscription() {
    Task {
        for await subscription in MusicSubscription.subscriptionUpdates {
            if subscription.canPlayCatalogContent {
                // Full Apple Music access
            } else if subscription.canBecomeSubscriber {
                // Show subscription offer
                showSubscriptionOffer()
            }
        }
    }
}

Subscription Offer Sheet

import MusicKit
import StoreKit

// Present Apple Music subscription offer
MusicSubscriptionOffer.Options(
    messageIdentifier: .playMusic,
    itemID: song.id
)

// In SwiftUI
.musicSubscriptionOffer(isPresented: $showOffer, options: offerOptions)