我创建一个AVPlayerViewController&在自定义UIViewController的viewDidAppear方法中附加的AVPlayer,但是当我按完成按钮时,我的自定义视图控制器将自动关闭.
我想拦截这个动作,以便我自己解开Segue,但我不知道该怎么做？我找到了MPMoviePlayerViewController但不是AVPlayerViewController ..
我找到的代码MPMoviePlayerViewController在下面..
- (void)playVideo:(NSString*)aVideoUrl
{
// Initialize the movie player view controller with a video URL string
MPMoviePlayerViewController *playerVC = [[[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL URLWithString:aVideoUrl]] autorelease];
// Remove the movie player view controller from the "playback did finish" notification observers
[[NSNotificationCenter defaultCenter] removeObserver:playerVC
name:MPMoviePlayerPlaybackDidFinishNotification
object:playerVC.moviePlayer];
// Register this class as an observer instead
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(movieFinishedCallback:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:playerVC.moviePlayer];
// Set the modal transition style of your choice
playerVC.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
// Present the movie player view controller
[self presentModalViewController:playerVC animated:YES];
// Start playback
[playerVC.moviePlayer prepareToPlay];
[playerVC.moviePlayer play];
}
- (void)movieFinishedCallback:(NSNotification*)aNotification
{
// Obtain the reason why the movie playback finished
NSNumber *finishReason = [[aNotification userInfo] objectForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey];
// Dismiss the view controller ONLY when the reason is not "playback ended"
if ([finishReason intValue] != MPMovieFinishReasonPlaybackEnded)
{
MPMoviePlayerController *moviePlayer = [aNotification object];
// Remove this class from the observers
[[NSNotificationCenter defaultCenter] removeObserver:self
name:MPMoviePlayerPlaybackDidFinishNotification
object:moviePlayer];
// Dismiss the view controller
[self dismissModalViewControllerAnimated:YES];
}
我问苹果这个问题,他们回答如下：
感谢您联系Apple开发人员技术支持(DTS).我们的工程师已经审查了您的请求,并得出结论,鉴于目前的运输系统配置,没有任何支持的方式来实现所需的功能.
解决方法
我对AVPlayerViewController进行子类化,并从viewWillDisappear发布通知,以指示关闭AVPlayerViewController.
- (void) viewWillDisappear:(BOOL)animated {
[[NSNotificationCenter defaultCenter] postNotificationName:kPlayerViewDismissedNotification object:nil];
[super viewWillDisappear:animated];
}
这可能不是100％正确的(因为它会失败,如果你有另一个视图显示在AVPlayerViewController),但它为我工作,因为AVPlayerViewController总是在堆栈的顶部.
