MPMoviePlayerController 在第二个 X 自动暂停

Question

我必须在第二个 X 时自动停止播放器，我不知道我必须使用哪种通知。之后，当用户点击屏幕上的任意位置时，播放器会继续运行视频。

- (IBAction)playMovie:(id)sender {
    NSString *filepath   =   [[NSBundle mainBundle] pathForResource:@"movie" ofType:@"m4v"];
    NSURL    *fileURL    =   [NSURL fileURLWithPath:filepath];
    _moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:fileURL];

    [[NSNotificationCenter defaultCenter] addObserver:self  selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:_moviePlayer];

    //here I don't know which notification I have to used
    [[NSNotificationCenter defaultCenter] addObserver:self  selector:@selector(moviePlayBackPause:) name:MPMoviePlayerPlaybackStateDidChangeNotification object:_moviePlayer];

    _moviePlayer.controlStyle = MPMovieControlStyleDefault;
    _moviePlayer.initialPlaybackTime = 2.5;

    _moviePlayer.shouldAutoplay = YES;
    [self.view addSubview:_moviePlayer.view];
    [_moviePlayer setFullscreen:YES animated:NO];
    [_moviePlayer play];
}

我试图捕捉电影帧并对其进行分析，看看是否该暂停视频了。

- (void) moviePlayBackPause:(NSNotification*)notification{
    // check if it's time to pause the video 
    if([_moviePlayer currentPlaybackTime] == 6.0){
         [_moviePlayer pause];
    }
}

我必须使用哪种类型的通知来捕捉视频的当前时间？

提前感谢您的所有回复！亲切的问候！

Answer 1

您可以使用 NSTimer 停止播放视频。应该有更好的方法来做到这一点，但是使用计时器你也可以做到。

[_moviePlayer play];
[NSTimer scheduledTimerWithTimeInterval:6 //Time in seconds
                                 target:self
                               selector:@selector(moviePlayBackPause) //Method called when the timer is completed.
                               userInfo:nil
                                repeats:NO];
    }
}

- (void) moviePlayBackPause {
  [_moviePlayer pause];
}

MPMoviePlayerController 在第二个 X 自动暂停

MPMoviePlayerController automatic pause at second X

iphone

objective-c

mpmovieplayercontroller

mpmovieplayer

ios