MPMoviePlayerPlaybackDidFinishNotification中的Segue直到第二次才触发

Question

Just upgraded a project from iOS5 to iOS7. For a reason I can not fathom the video now plays twice before the segue works

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    NSLog(@"LogoVC viewDidAppear");

    NSString *filepath   =   [[NSBundle mainBundle] pathForResource:@"start_sting_logo_resolve" ofType:@"mp4"];
    NSURL    *fileURL    =   [NSURL fileURLWithPath:filepath];
    MPMoviePlayerController *moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:fileURL];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlaybackComplete:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:moviePlayerController];

    // no moviecontrolls
    moviePlayerController.controlStyle = MPMovieControlStyleNone;

    [self.view addSubview:moviePlayerController.view];
    moviePlayerController.fullscreen = YES;
    moviePlayerController.scalingMode = MPMovieScalingModeAspectFill;
    moviePlayerController.view.backgroundColor = [UIColor whiteColor];
    [moviePlayerController play];
}


#pragma mark - Video methods


- (void)moviePlaybackComplete:(NSNotification *)notification
{
    NSLog(@"moviePlaybackComplete");
    MPMoviePlayerController *moviePlayerController = [notification object];
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:MPMoviePlayerPlaybackDidFinishNotification
                                                  object:moviePlayerController];

    [moviePlayerController.view removeFromSuperview];
    [moviePlayerController release];

    [self performSegueWithIdentifier:@"segueToScroller" sender:self];
    NSLog(@"preformed performSegueWithIdentifier");
}

The view loads twice according to the log

2014-07-01 14:25:17.872 Appname[1620:60b] LogoVC viewDidAppear
2014-07-01 14:25:31.745 Appname[1620:60b] moviePlaybackComplete
2014-07-01 14:25:31.766 Appname[1620:60b] LogoVC viewDidAppear
2014-07-01 14:25:31.965 Appname[1620:60b] preformed performSegueWithIdentifier
2014-07-01 14:25:44.089 Appname[1620:60b] moviePlaybackComplete
2014-07-01 14:25:44.124 Appname[1620:60b] preformed performSegueWithIdentifier
2014-07-01 14:25:44.190 Appname[1620:60b] ScrollerVC viewDidLoad

The video file is local.

MPMoviePlayerPlaybackDidFinishNotification is firing, but instead of the segue being performed, the viewcontroller seems to reload, and only the segue only woks the second time MPMoviePlayerPlaybackDidFinishNotification is called.

It's custom segue if that makes any difference

#import "JBCustomSegue.h"

@implementation JBCustomSegue

- (void) perform {

    UIViewController *src = (UIViewController *) self.sourceViewController;
    UIViewController *dst = (UIViewController *) self.destinationViewController;

    int orient = [UIApplication sharedApplication].statusBarOrientation;

    if (orient==3){
        // Orient for Landscape Right 4
        [UIView transitionWithView:src.navigationController.view duration:0.3
                           options:UIViewAnimationOptionTransitionCurlUp
                        animations:^{[src.navigationController pushViewController:dst animated:NO];} completion:NULL];


    } else if (orient==4) {
        // Orient for Landscape Left 3
        [UIView transitionWithView:src.navigationController.view duration:0.3
                           options:UIViewAnimationOptionTransitionCurlDown
                        animations:^{[src.navigationController pushViewController:dst animated:NO];} completion:NULL];
    } else {
        // Orient for Landscape Right 4
        [UIView transitionWithView:src.navigationController.view duration:0.3
                           options:UIViewAnimationOptionTransitionCurlDown
                        animations:^{[src.navigationController pushViewController:dst animated:NO];} completion:NULL];
    }
}

The thing is this didn't happen per-iOS7

Answer 1

The culprit seems to be _moviePlayerController.fullscreen = YES;

I added the screen dimensions instead with [_moviePlayerController.view setFrame: CGRectMake(0, 0, 1024, 768)];

NSString *filepath   =   [[NSBundle mainBundle] pathForResource:@"start_sting_logo_resolve" ofType:@"mp4"];
NSURL    *fileURL    =   [NSURL fileURLWithPath:filepath];

_moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:fileURL];

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(moviePlaybackComplete:)
                                             name:MPMoviePlayerPlaybackDidFinishNotification
                                           object:_moviePlayerController];

// no moviecontrolls
_moviePlayerController.controlStyle = MPMovieControlStyleNone;

[_moviePlayerController.view setFrame: CGRectMake(0, 0, 1024, 768)];
[self.view addSubview:_moviePlayerController.view];

//_moviePlayerController.fullscreen = YES;
_moviePlayerController.scalingMode = MPMovieScalingModeAspectFill;
_moviePlayerController.view.backgroundColor = [UIColor clearColor];
[_moviePlayerController play];