Audio player modifications should be on main queue

ios/App/Shared/player/AudioPlayer.swift

@@ -299,11 +299,14 @@ class AudioPlayer: NSObject {
         // Start playback, with a seek, for as smooth a scrub bar start as possible
         let currentTrackStartOffset = session.audioTracks[self.currentTrackIndex].startOffset ?? 0.0
         let seekTime = currentTime - currentTrackStartOffset
+        
+        DispatchQueue.runOnMainQueue {
             self.audioPlayer.seek(to: CMTime(seconds: seekTime, preferredTimescale: 1000), toleranceBefore: .zero, toleranceAfter: .zero) { [weak self] completed in
                 guard completed else { return }
                 self?.resumePlayback()
             }
         }
+    }
     
     private func calculateSeekBackTimeAtCurrentTime(_ currentTime: Double, lastPlayed: Double) -> Double {
         let difference = Date.timeIntervalSinceReferenceDate - lastPlayed
@@ -337,8 +340,10 @@ class AudioPlayer: NSObject {
         self.stopPausedTimer()
         
         self.markAudioSessionAs(active: true)
+        DispatchQueue.runOnMainQueue {
             self.audioPlayer.play()
             self.audioPlayer.rate = self.tmpRate
+        }
         self.status = 1
         
         // Update the progress
@@ -349,7 +354,9 @@ class AudioPlayer: NSObject {
         guard self.isInitialized() else { return }
         
         NSLog("PAUSE: Pausing playback")
+        DispatchQueue.runOnMainQueue {
             self.audioPlayer.pause()
+        }
         self.markAudioSessionAs(active: false)
         
         Task {
@@ -394,10 +401,12 @@ class AudioPlayer: NSObject {
             self.status = -1
             let playerItems = self.allPlayerItems[indexOfSeek..<self.allPlayerItems.count]
             
+            DispatchQueue.runOnMainQueue {
                 self.audioPlayer.removeAllItems()
                 for item in Array(playerItems) {
                     self.audioPlayer.insert(item, after:self.audioPlayer.items().last)
                 }
+            }
             
             setupQueueItemStatusObserver()
         } else {
@@ -405,6 +414,7 @@ class AudioPlayer: NSObject {
             let currentTrackStartOffset = playbackSession.audioTracks[self.currentTrackIndex].startOffset ?? 0.0
             let seekTime = to - currentTrackStartOffset
             
+            DispatchQueue.runOnMainQueue {
                 self.audioPlayer.seek(to: CMTime(seconds: seekTime, preferredTimescale: 1000)) { [weak self] completed in
                     guard completed else { return NSLog("SEEK: WARNING: seeking not completed (to \(seekTime)") }
                     guard let self = self else { return }
@@ -417,14 +427,17 @@ class AudioPlayer: NSObject {
                 }
             }
         }
+    }
     
     public func setPlaybackRate(_ rate: Float, observed: Bool = false) {
         let playbackSpeedChanged = rate > 0.0 && rate != self.tmpRate && !(observed && rate == 1)
         
         if self.audioPlayer.rate != rate {
             NSLog("setPlaybakRate rate changed from \(self.audioPlayer.rate) to \(rate)")
+            DispatchQueue.runOnMainQueue {
                 self.audioPlayer.rate = rate
             }
+        }
         
         self.rate = rate
         self.updateNowPlaying()