initializer.m

-(instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    
    if(self) {
        [self setBackgroundColor:[UIColor whiteColor]];
        
        // Find the video file
        NSString *videoPath = [[NSBundle mainBundle] pathForResource:@"drop" ofType:@"mp4"];
        
        // Create a new URL based on the video location
        NSURL *videoURL = [NSURL fileURLWithPath:videoPath];
        
        // Create an item using the URL
        AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:videoURL];
        
        //Initializing the player with the item
         _player = [AVPlayer playerWithPlayerItem:playerItem];
        
        // Initializing the layer with player
        _playerLayer = [AVPlayerLayer playerLayerWithPlayer:_player];
        
        //Set the frame of the player equals to the frame of the view
        [_playerLayer setFrame:self.frame];
        
        // Choose to display the video to fill the screen
        _playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
        
        // Add the video layer to the view layer
        [self.layer addSublayer:_playerLayer];
        
        // Keep tracking when the video finishes to replay it again
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(videoFinishedPlaying:)
                                                     name:AVPlayerItemDidPlayToEndTimeNotification
                                                     object:playerItem];
        
        // Avoid cutting off the user audio
        [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:nil];
  
    }
    return self;
}