问iPhone/iPad同时下载和播放

EN

 NSURL *fileURL = [NSURL URLWithString:@"<Video URL>"];
        [self playMovie:fileURL];

-(IBAction)playMovie:(NSString *) theURL 
{
    NSURL    *fileURL    =   [NSURL fileURLWithPath:theURL];
    MPMoviePlayerController *moviePlayerController = [[MPMoviePlayerController alloc] initWithContentURL:fileURL];

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

    [self.view addSubview:moviePlayerController.view];
    moviePlayerController.useApplicationAudioSession = NO;
    moviePlayerController.fullscreen = YES;
    [moviePlayerController play];
}

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

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