/*
 @method 播放電影
 /
-(void)playMovie:(NSString )fileName{
    //視頻文件路徑
    NSString path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"mp4"];
    //視頻URL
    NSURL url = [NSURL fileURLWithPath:path];
    //視頻播放對象
    MPMoviePlayerController movie = [[MPMoviePlayerController alloc] initWithContentURL:url];
    movie.controlStyle = MPMovieControlStyleFullscreen;
    [movie.view setFrame:self.view.bounds];
    movie.initialPlaybackTime = -1;
    [self.view addSubview:movie.view];
    // 注冊一個播放結束的通知
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(myMovieFinishedCallback:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:movie];
    [movie play];
}

pragma mark -------------------視頻播放結束委托--------------------
/
 @method 當視頻播放完畢釋放對象　
 /
-(void)myMovieFinishedCallback:(NSNotification)notify
{
    //視頻播放對象
    MPMoviePlayerController theMovie = [notify object];
    //銷毀播放通知
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:MPMoviePlayerPlaybackDidFinishNotification
                                                  object:theMovie];
    [theMovie.view removeFromSuperview];
    // 釋放視頻對象
    [theMovie release];
}</pre>