don't show movie in document folder in xcode

Question

I create one application that show file in document folder. I have one file .mov format that I want show it from document folder but when run app and click play button don't show this movie and I see this image :

this is my code : (please guide me and tell me my mistake)

- (IBAction)Play:(id)sender
{
    NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES)objectAtIndex:0];
    NSString *file = [documentPath stringByAppendingPathComponent:@"xcode4-outlet.mov"];
    NSURL *url = [NSURL fileURLWithPath:file];
    _moviePlayer = [[MPMoviePlayerController alloc]initWithContentURL:url];
    [self.view addSubview:_moviePlayer.view];
    _moviePlayer.fullscreen = YES;
    _moviePlayer.shouldAutoplay = YES;
    _moviePlayer.allowsAirPlay = YES;
    [_moviePlayer play];
}

also compiler get me this massage :

movie player[9489:c07] [MPAVController] Autoplay: Likely to keep up or full buffer: 0
movie player[9489:c07] [MPAVController] Autoplay: Skipping autoplay, not enough buffered to keep up.
movie player[9489:c07] [MPAVController] Autoplay: Enabling autoplay
movie player[9489:c07] [MPCloudAssetDownloadController] Prioritization requested for media item ID: 0
movie player[9489:c07] [MPAVController] Autoplay: Enabling autoplay

Answer 1

You need to check whether a file is there or not before adding movie player also you can add default

-(IBAction)Play:(id)sender
{

    NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES)objectAtIndex:0];
    NSString *file = [documentPath stringByAppendingPathComponent:@"xcode4-outlet.mov"];
    NSURL *url = [NSURL fileURLWithPath:file];

    BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:file];
    if(fileExists)
    {
        _moviePlayer = [[MPMoviePlayerController alloc]initWithContentURL:url];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePreloadDidFinish:) name:MPMoviePlayerLoadStateDidChangeNotification
                                                   object:_moviePlayer];
        _moviePlayer.shouldAutoplay=NO;
        [_moviePlayer prepareToPlay];
    }

}

Add your movie after movie is completely loaded

-(void)moviePreloadDidFinish:(NSNotification*)notification
{

   _moviePlayer.controlStyle=MPMovieControlStyleDefault;
   [self.view addSubview:_moviePlayer.view];
   [_moviePlayer play];
   [_moviePlayer setFullscreen:YES animated:YES];

}