How can I check if my AVPlayer is buffering?

Question

I want to detect if my AVPlayer is buffering for the current location, so that I can show a loader or something. But I can\'t seem to find anything in the documentation for

Answer 1

#Updated in Swift 4 and worked fine

As through i have gone with accepted answer but didn't work in swift 4 for me so after certain research i have found this thinks from apple doc. There are two way to determine AVPlayer states that are,

1. addPeriodicTimeObserverForInterval:queue:usingBlock: and
2. addBoundaryTimeObserverForTimes:queue:usingBlock:

and using ways is like this

var observer:Any?
var avplayer : AVPlayer?

func preriodicTimeObsever(){

        if let observer = self.observer{
            //removing time obse
            avplayer?.removeTimeObserver(observer)
            observer = nil
        }

        let intervel : CMTime = CMTimeMake(1, 10)
        observer = avplayer?.addPeriodicTimeObserver(forInterval: intervel, queue: DispatchQueue.main) { [weak self] time in

            guard let `self` = self else { return }

            let sliderValue : Float64 = CMTimeGetSeconds(time)
           //this is the slider value update if you are using UISlider.

            let playbackLikelyToKeepUp = self.avPlayer?.currentItem?.isPlaybackLikelyToKeepUp
            if playbackLikelyToKeepUp == false{

               //Here start the activity indicator inorder to show buffering
            }else{
                //stop the activity indicator 
            }
        }
    }

And Don't forget to kill time observer to save from memory leak. method for killing instance, add this method according to your need but i have used it in viewWillDisappear method.

       if let observer = self.observer{

            self.avPlayer?.removeTimeObserver(observer)
            observer = nil
        }