I can't get PiP to work on beta3 on iPad Air 2 simulator.
It used to work on beta1 and beta2.
I updated to XCode7 beta3.
AVFoundationPiPPlayer sample code doesn't work.
The PiP button is never activated. Even if I manually call startPictureInPicture() nothing happens.
BTW, you have to update the signature for observeValueForKeyPath to compile the sample on Xcode7 beta3.