MPMoviePlayerController 通知在 ios6 中不起作用

Question

我已经构建了一个演示，其中我只是播放实时视频 url，如果 url 无法正常工作，则 MPMoviePlayerController 会触发通知 MPMoviePlayerPlaybackDidFinishNotification MPMoviePlayerPlaybackDidFinishReasonUserInfoKey。这个东西在 ios7 和更高版本中完美运行，但是当我在 ios6 中使用同样的东西时，它不起作用。我的代码片段如下

NSLog(@"URL::%@",url.absoluteString);
        UIInterfaceOrientation interface = [UIApplication sharedApplication].statusBarOrientation;
        videoPlayer = [[MPMoviePlayerController alloc] init];
        [videoPlayer setContentURL:url];
        [videoPlayer setMovieSourceType:MPMovieSourceTypeStreaming];
        [videoPlayer setControlStyle:MPMovieControlStyleNone];
        [videoPlayer setScalingMode:MPMovieScalingModeNone];
        [videoPlayer.view setFrame:CGRectMake(0.0, viewTopbar.frame.size.height, self.view.frame.size.width, self.view.frame.size.height - (viewTopbar.frame.size.height+[self getBannerHeight:interface]))];
        [self.view addSubview:self.videoPlayer.view];
        [self.videoPlayer play];
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(moviePlayBackDidFinish:)
                                                     name:MPMoviePlayerPlaybackDidFinishNotification
                                                   object:videoPlayer];
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(moviePlayBackDidFinishWithReson:)
                                                     name:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey
                                                   object:videoPlayer];

#pragma mark
#pragma mark - movie player delegate methods
- (void) moviePlayBackDidFinish:(NSNotification*)notification
{
    int reason = [[[notification userInfo] valueForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey] intValue];
    if (reason == MPMovieFinishReasonPlaybackError) {
        //error
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:localize(@"strTitle") message:localize(@"strMsg") delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];
    }
}
-(void) moviePlayBackDidFinishWithReson:(NSNotification *)notification
{
    int reason = [[[notification userInfo] valueForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey] intValue];
    if (reason == MPMovieFinishReasonPlaybackError) {
        //error
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:localize(@"strTitle") message:localize(@"strMsg") delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];
    }
}

Answer 1

在对很多事情进行研发之后，我没有从委托方法中找到任何解决方案，所以对于这个问题，我实现了一件事，我启动一个计时器并检查电影播放器的当前头部是否大于 0。这意味着视频已成功加载和播放。

我的代码片段如下。

在 MPMoviePlayerController 的初始化中写入此代码

if (iOS6 && APPDELEGATE.isNetAvailable)
        {
            [NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(checkVideo) userInfo:nil repeats:NO];
        }

并在您的视图控制器中编写此方法

-(void)checkVideo
{
    NSLog(@"%f",videoPlayer.currentPlaybackTime);
    if (videoPlayer.currentPlaybackTime == 0.0)
    {
        //error
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:localize(@"strTitle") message:localize(@"strMsg") delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];
        [videoPlayer stop];
    }
}

请仅将此解决方案用于 ios6。

MPMoviePlayerController 通知在 ios6 中不起作用

MPMoviePlayerController notification not working in ios6

objective-c

mpmovieplayercontroller

ios