When connection is cut before track is fully buffered and player reaches end of loaded time ranges, audio stops but status is not updated: elapsed Time continues to send events player.timeControlStatus = playing currentItem!.isPlaybackLikelyToKeepUp = true player.status = readyToPlay player.currentItem!.status = readyToPlay currentItem!.isPlaybackLikelyToKeepUp = true But an event is logged in errorLog() "NSURLErrorDomain" errorStatusCode -1009 This results in weird behaviour where a progress bar is continuing to show progress without any sound. It even continues beyond the total track duration. Reproducible on demo app https://github.com/timstudt/PlayerApp: start playback let buffer til e.g. 70sec (loadedTimeRanges) activate flight mode seek to 60sec (returns = successful) watch: when player reaches 70sec mark, audio stops, but elapsed time continues. Note: w/o seeking the player stalls correctly on 70sec mark.

Docs say: "For serial tasks, set the target of your serial queue to one of the global concurrent queues" but how exactly? DispatchQueue(label: "", target: .global(qos: .background)) // or DispatchQueue(label: "", qos: .background, target: .global(qos: .background)) or is it the same? context: We use quite a few serial queues in our app. In general each service (e.g. analytics, downloading, etc) has it's own serial queue to sync. access to it's resources.

I have an issue with updating MPNowPlayingInfoCenter when trying to read nowPlayingInfo I don't get a response leading to blocking the current thread indefinitely. I'm updating MPNowPlayingInfoCenter on main thread which results in an app freeze. func staticUpdate() {     logger.log(.debug, "start static update")     infoCenter.nowPlayingInfo = nowPlayingInfo     logger.log(.debug, "end static update") } func dynamicUpdate() {     logger.log(.debug, "start update - read")     var mpInfo = infoCenter.nowPlayingInfo ?? [String: Any]()     logger.log(.debug, "start update - write") ...     infoCenter.nowPlayingInfo = mpInfo     logger.log(.debug, "end update") } /* 2022-04-25 09:28:19.051435+0200 [Debug] [main] [NowPlayingInfoCenterController.swift:128] start static update 2022-04-25 09:28:19.051834+0200 [Debug] [main] [NowPlayingInfoCenterController.swift:130] end static update 2022-04-25 09:28:19.052251+0200 [Debug] [main] [NowPlayingInfoCenterController.swift:186] start update - read */ I'm overwriting nowPlayingInfo when media changes, then I'm updating it on any status changes (progress, status,...) (see timestamps, we read ~1ms after write but never reach infoCenter.nowPlayingInfo = mpInfo) Questions: shouldn't infoCenter.nowPlayingInfo always be readable? can I update infoCenter from any queue? (this would solve only app freeze..)

How can I detect when my app goes from background to suspended state? or better about to be suspended.. AppDelegate has method for entering background and there's even a Notification for this, but I can't find anything about suspended. And I guess receiveMemoryWarning is not the right one.