使用 M1 在 macOS 上运行 iOS 应用程序时，MPNowPlayingInfoCenter 不会设置播放器控件

问题描述

我想通过 M1 在 Mac 上使用 iOS 应用程序。它主要在“专为 iPad 设计”模式下按预期工作，除了播放器控件不会像在 iOS 上那样出现在控制中心。 以下是在 iOS 上完美运行的代码的重要部分：

import AVFoundation
import MediaPlayer

class RemoteCommandHandler: NSObject {
    static let shared = RemoteCommandHandler()
    
    weak var delegate: MainVCDelegate?
    
    private var player: AVAudioPlayer?
    private let audioSession = AVAudioSession.sharedInstance()
    private let commandCenter = MPRemoteCommandCenter.shared()
    private var NowPlayingInfo = [String: Any]()
    
    private var obs: NSkeyvalueObservation?

    func initPlayback() {
        if obs == nil {       
            do {
                try audioSession.setCategory(.playback,mode: .default,options: [])
                
                try audioSession.setActive(true)
            } catch {
                //error
            }
            
            obs = audioSession.observe( \.outputVolume ) { avSession,_ in
                self.delegate?.setVolume(avSession.outputVolume)
            }
            
            setupRemoteTransportControls()

            if player == nil {
            do {
                try player = AVAudioPlayer(contentsOf:
                    URL(fileURLWithPath: Bundle.main.path(forResource: "TestTrack",ofType: "m4a")!))
                player?.delegate = self
                player?.volume = 0
                player?.numberOfLoops = 1
            } catch let error as NSError {
                //error
            }
        }
        }
    }
    
    func setupNowPlaying() {
            NowPlayingInfo[MPMediaItemPropertyTitle] = TrackInfo.title.userFriendlyString()
            NowPlayingInfo[MPMediaItemPropertyArtist] = TrackInfo.artist.userFriendlyString()
            NowPlayingInfo[MPMediaItemPropertyAlbumTitle] = TrackInfo.album.userFriendlyString()
            
            let image = NowPlayingInfo.getArtwork()
            var artwork: MPMediaItemArtwork
            artwork = MPMediaItemArtwork(boundsSize: image.size) { _ in image }
            NowPlayingInfo[MPMediaItemPropertyArtwork] = artwork

            NowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = PlayerStatusInfo.isPlaying() ? 1 : 0
            NowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = NowPlayingInfo.getDurationMs() / 1000
                            NowPlayingInfo[MPNowPlayingInfoPropertyElapsedplaybackTime] = NowPlayingInfo.currentMs / 1000
            NowPlayingInfo[MPNowPlayingInfoPropertyPlaybackProgress] = NowPlayingInfo.calculateProgress()
            
            MPNowPlayingInfoCenter.default().NowPlayingInfo = NowPlayingInfo
    }
}

非常感谢有关如何使其在 Mac 上运行的任何建议。

解决方法

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