How to show AVplayer current play duration in UISlider

Question

I am using a custom UISlider to implement the scrubbing while playing a video in AVPlayer. Trying to figure out the best way to show the current play time and the remaining duration on the respective ends of the UISlider as it usually is shown in MPMoviePlayerController.

Any help is appreciated.

Answer 1

Swift 4.x

let player = AVPlayer()
player.addPeriodicTimeObserver(forInterval: CMTime.init(value: 1, timescale: 1), queue: .main, using: { time in
        if let duration = player.currentItem?.duration {
          let duration = CMTimeGetSeconds(duration), time = CMTimeGetSeconds(time)
          let progress = (time/duration)
          if progress > targetProgress {
              print(progress)
             //Update slider value
          }
        }
    })

or

extension AVPlayer {
    func addProgressObserver(action:@escaping ((Double) -> Void)) -> Any {
        return self.addPeriodicTimeObserver(forInterval: CMTime.init(value: 1, timescale: 1), queue: .main, using: { time in
            if let duration = self.currentItem?.duration {
                let duration = CMTimeGetSeconds(duration), time = CMTimeGetSeconds(time)
                let progress = (time/duration)
                action(progress)
            }
        })
    }
}

Use

let player = AVPlayer()
player.addProgressObserver { progress in
   //Update slider value
}

Answer 2

Put a UILabel at each end. Update them using -[AVPlayer addPeriodicTimeObserverForInterval:queue:usingBlock:]. Compute the time remaining using -[AVPlayer currentTime] and -[AVPlayerItem duration].