注册AVPlayer进行事件-如何知道AVPlayer播放电影已完成

Question

I know that AVPlayerItem (a subclass of AVPlayer) is able to subscribe to the AVPlayerItemDidPlayToEndTimeNotification

AVPlayer does not have such capability, and I need to use AVPlayer unless there is no way around this and know when the playing of the (video in my case) is complete.

How do I do this in an AVPlayer? I read some of the documentation for these classes and I do not see an immediate answer.

-(void)setupVideoView{


    _videoPlayer = [AVPlayer playerWithURL:urlObjectHere];

    AVPlayerLayer *layer = [AVPlayerLayer layer];

    [layer setPlayer:_videoPlayer];
    [layer setFrame:_videoView.bounds];

    [_videoView.layer addSublayer:layer];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(itemDidFinishPlaying:) name:AVPlayerItemDidPlayToEndTimeNotification object:_videoPlayer];




}

-(void)itemDidFinishPlaying:(NSNotification *) notification {
    // does not get called

    DLog(@"");



}

Answer 1

As I know, there's no way to know the complete time by AVPlayer layer.

AVAsset - AVPlayerItem - AVPlayer are three components combined AVPlayer in AVFoundation. If you want DIY more functions of AVPlayer, you need to use lower level of AVPlayer, they are AVAsset and AVPlayerItem.

If you just need normal utilities of AVPlayer, just use AVPlayerViewController in AVKit I think.

It's not suggested to use MPMoviePlayer, most part of it has deprecated. Get used to AVPlayer...

Answer 2

I was able to solve the problem in the following way: I used an AVPlayerItem and created my AVPlayer from that item, subscribing the notifications to the player item.

-(void)setupVideoView{


     AVPlayerItem* playerItem = [AVPlayerItem playerItemWithURL:urlObjectHere];//edited

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(itemDidFinishPlaying:) name:AVPlayerItemDidPlayToEndTimeNotification object:playerItem];//edited

    _videoPlayer = [[AVPlayer alloc] initWithPlayerItem:playerItem];//edited

    AVPlayerLayer *layer = [AVPlayerLayer layer];

    [layer setPlayer:_videoPlayer];
    [layer setFrame:_videoView.bounds];

    [_videoView.layer addSublayer:layer];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(itemDidFinishPlaying:) name:AVPlayerItemDidPlayToEndTimeNotification object:_videoPlayer];




}

-(void)itemDidFinishPlaying:(NSNotification *) notification {
    // gets called finally


    AVPlayerItem *p = [notification object]; //bring video back to zero
    [p seekToTime:kCMTimeZero];

    DLog(@"");



}