I want get song object from SystemMusicPlayer.Queue use musickit . But there's often crash .
Here is my code
func getSongData(complection:@escaping (Song)->())
{
Task.detached {
do {
let queue : SystemMusicPlayer.Queue?
queue = SystemMusicPlayer.shared.queue
if queue?.currentEntry != nil
{
let request = MusicCatalogResourceRequest<Song>(matching: \.id, equalTo: MusicItemID(rawValue: queue?.currentEntry?.item?.id.rawValue ?? "1595045323"))
let response = try? await request.response()
complection((response?.items.first)!)
}
}
}
}
Hello @zengxing,
The SystemMusicPlayer API is meant to be used on the MainActor.
Hence, you should try to setup your tasks with the @MainActor keyword, like:
Task.detached { @MainActor in
…
}
or even more simply:
Task { @MainActor in
…
}
But more importantly, you don't need to any of this to get access to a Song from the queue. Instead, you can simply check the current entry's item, and get the underlying song from it:
You could just do this:
private var currentlyPlayingSong: Song? {
var currentlyPlayingSong: Song?
let musicPlayerQueue = SystemMusicPlayer.shared.queue
if let currentEntry = musicPlayerQueue.currentEntry {
if case .song(let song) = currentEntry.item {
currentlyPlayingSong = song
}
}
return currentlyPlayingSong
}
I hope it helps.
Best regards,