What's X

@interface RootViewController ()

{  

}

@property (nonatomic, strong) MPMoviePlayerController *moviePlayer;

@end

@implementation RootViewController

@synthesize moviePlayer;

-(void)playIntro{

    NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]pathForResource:@"appIntro" ofType:@"mp4"]];

    self.moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:url];

    //註冊通知中心，當影片播放完畢，進行回呼方法(playbackStateDidFinish)

    [[NSNotificationCenter defaultCenter] addObserver:self

                                             selector:@selector(playbackStateDidFinish)

                                                 name:MPMoviePlayerPlaybackDidFinishNotification

                                               object:self.moviePlayer ];

    //播放器參數設定

    self.moviePlayer.controlStyle = MPMovieControlStyleNone;

    self.moviePlayer.scalingMode = MPMovieScalingModeAspectFill;

    self.moviePlayer.repeatMode = MPMovieRepeatModeNone;

    self.moviePlayer.view.autoresizingMask = UIViewAutoresizingFlexibleBottomMargin|UIViewAutoresizingFlexibleLeftMargin

   |UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleTopMargin;

    //設定播放器大小

    [self.moviePlayer.view setFrame:self.view.bounds];

    [self.view addSubview:self.moviePlayer.view];

    //播放

    [self.moviePlayer play];

}

- (void)playbackStateDidFinish{

    //註銷通知中心

    [[NSNotificationCenter defaultCenter] removeObserver:self

                                                    name:MPMoviePlayerPlaybackDidFinishNotification

                                                  object:self.moviePlayer];

    //停止播放

    [self.moviePlayer stop];

    //移除播放器

    [self.moviePlayer.view removeFromSuperview];

}