Play a video using mediaplayer

Play video with mediaplayer by Wu xueying

- (IBAction)userPlayerController:(id)sender {    if (_moviePlayer == nil) {        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished4MoviePlayerController:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];                [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(doneButtonClick:) name:MPMoviePlayerWillExitFullscreenNotification object:nil];                _moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[self movieURL]];                _moviePlayer.scalingMode = MPMovieScalingModeAspectFill;        _moviePlayer.controlStyle = MPMovieControlStyleFullscreen;                [self.view addSubview:_moviePlayer.view];    }    [_moviePlayer play];    [_moviePlayer setFullscreen:YES animated:YES];}- (void)playbackFinished4MoviePlayerController:(NSNotification *)notification {    [[NSNotificationCenter defaultCenter] removeObserver:self];    [_moviePlayer stop];    [_moviePlayer.view removeFromSuperview];    _moviePlayer = nil;}- (void)doneButtonClick:(NSNotification *)aNotification {    if (_moviePlayer.playbackState == MPMoviePlaybackStateStopped) {        [_moviePlayer.view removeFromSuperview];        _moviePlayer = nil;    }}- (IBAction)userPlayerViewController:(id)sender {    if (_moviePlayerView == nil) {        _moviePlayerView = [[MPMoviePlayerViewController alloc] initWithContentURL:[self movieURL]];        _moviePlayerView.moviePlayer.scalingMode = MPMovieScalingModeAspectFill;        _moviePlayerView.moviePlayer.controlStyle = MPMovieControlStyleEmbedded;        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished4MoviePlayerViewController:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];    }    [self presentMoviePlayerViewControllerAnimated:_moviePlayerView];}- (void)playbackFinished4MoviePlayerViewController:(NSNotification *)notification {    [[NSNotificationCenter defaultCenter] removeObserver:self];    [_moviePlayerView dismissMoviePlayerViewControllerAnimated];    _moviePlayerView = nil;}- (NSURL *)movieURL {    NSBundle *bundle = [NSBundle mainBundle];    NSString *moviePath = [bundle pathForResource:@"xx" ofType:@"mp4"];    if (moviePath) {        return [NSURL fileURLWithPath:moviePath];    }else {        return nil;    }}

Play a video using mediaplayer