问题
Based on the answer from this question, I have implemented an event handler that detects when an AVPlayerItem finishes 'naturally'(through AVPlayerItem.DidPlayToEndTimeNotification) and when it finishes because the user has used the seek bar to reach the end of the video (through AVPlayerItem.TimeJumpedNotification).
I would like to extend this further by checking, in the event handler for the second case, whether the user has stopped seeking - i.e their finger has been lifted from the screen) or whether they're still actively seeking.
Is there any way to detect events on the AVPlayerViewController controls so I can perform this check and react accordingly?
来源：https://stackoverflow.com/questions/35045949/detect-tap-on-off-avplayerviewcontroller-controls