MPMoviePlayerController不会退出全屏模式

            //Player video
            self.player = [[MPMoviePlayerController alloc] 
                           initWithContentURL:[NSURL fileURLWithPath:self.attachment.path]];

            [[NSNotificationCenter defaultCenter] 
             addObserver:self
             selector:@selector(movieFinishedCallback:)                                                 
             name:MPMoviePlayerPlaybackDidFinishNotification
             object:player];

            [self.player setFullscreen:NO];
            [self.view addSubview:self.player.view];
            [self.player play];