Background video playback does not work anymore on iOS 14

SRGSSR / srgmediaplayer-apple

An advanced media player library, simple and reliable

MIT License

158 stars 33 forks source link

Background video playback does not work anymore on iOS 14 #94

Closed defagos closed 3 years ago

defagos commented 3 years ago

With iOS 14 changes now prevent background video playback from working. With the inline demo:

Detached / detached while locked modes do not work.
It is still possible to have background video playback, but the view has to be deattached before entering in background, apparently.

It is likely that this cannot be fixed at all. We will attempt to discuss this issue with Apple engineers to know if this is desired behavior or a regression, and if a fix is planned.

If no fix is planned or if this is intended behavior, we will have to either drop this feature entirely for all supported OSes (simple) or to update our code to disable it for iOS 14.

defagos commented 3 years ago

Reported to Apple as FB8722590.

A possible partial workaround is to use UIApplicationWillResignActiveNotification instead of UIApplicationDidEnterBackground. This has two negative side-effects, though:

Video layers are detached when multi-tasking, while this was previously not the case.
Playback is still paused when locking the device with the app active and the video layer attached.

I tried to hook earlier into the application lifecycle (the missing willEnterForeground) but could not solve the issue.

defagos commented 3 years ago

Seems to work with iOS 14.2 beta 2. We’ll wait until the final version, which should not be far away.

defagos commented 3 years ago

Still fixed in 14.2 GM. We can consider this issue has been resolved, though it will never work in iOS 14.0 and 14.1 of course.