Xamarin iOS Audio Player Notification

Step 1

 

Create a project in Xamarin iOS. New Project => Single View App. Give the Name

 

Step 2

Just Create a Media Player as you need. Add the following code in ViewDidLoad.

public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            //To listen changes in lock screen
            UIApplication.SharedApplication.BeginReceivingRemoteControlEvents();

            //creating an audio player with url
            mediaplayer = new AVPlayer(new Uri("https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3"));

            //make audio play when app goes background
            AVAudioSession.SharedInstance().SetActive(true);
            AVAudioSession.SharedInstance().SetCategory(AVAudioSessionCategory.Playback);

            //Audio player Notification in lock screen
            MPNowPlayingInfo nowPlayingInfo;
            nowPlayingInfo = new MPNowPlayingInfo();
            nowPlayingInfo.Artist = "An OK Band";
            nowPlayingInfo.Title = "Our First Single!";

            // Register for receiving controls from lock screen and controlscreen
            MPNowPlayingInfoCenter.DefaultCenter.NowPlaying = nowPlayingInfo;
        }

Step 3

 

Now we have to listen to changes in that media player notification as the user taps on next, play/pause, or previous.

public override void RemoteControlReceived(UIEvent theEvent)
        {
            base.RemoteControlReceived(theEvent);
            if (theEvent.Subtype == UIEventSubtype.RemoteControlPreviousTrack)
            {
                 //Something you need to do.
            }
            else if (theEvent.Subtype == UIEventSubtype.RemoteControlNextTrack)
            {
                 //Something you need to do.
            }
            else
            {
                //Something you need to do.
            }
        }

Step 4

   

For each time the audio or video has changed, we have to update in "nowPlayingInfo" 

 

 

 

Step 5

 

That's all set. Now we are able to control our audio from the lock screen.