MPMoviePlayerController gives me a black empty view,no video playing

Question

iOS 5.1 ,here is the code:

 MPMoviePlayerController *player =
    [[MPMoviePlayerController alloc] initWithContentURL: [NSURL URLWithString:@"map.mp4"]];
    [player prepareToPlay];
    [player.view setFrame: self.view.bounds];  // player's frame must match parent's
    [self.view addSubview: player.view];
    // ...
    [player play];

in fact ,this is just the same as the apple reference say,but when I click the button to use this function,there is just a black Rectangle stay there,no vedio playing ,no sound happening,and no crush,so I want to know how to make this work

Answer 1

Sorry for very late reply. The Solution is kind of wierd. But it helped me keep going while facing the same issue.

MPMovieSourceTypeStreaming is the thing you have missed.

MPMoviePlayerController *player =
[[MPMoviePlayerController alloc] initWithContentURL: [NSURL URLWithString:@"map.mp4"]];
[player prepareToPlay];
[player.view setFrame: self.view.bounds];  // player's frame must match parent's
player.movieSourceType    = MPMovieSourceTypeStreaming;
[self.view addSubview: player.view];
// ...
[player play];

Answer 2

You may be sending your

[player play] 

message too soon.

Use the following notification observation

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playMovie:) name:MPMoviePlayerLoadStateDidChangeNotification object:player];

To listen for the loadState to change to playable. To check for that update do this :

- (void)playMovie:(NSNotification *)notification {
    MPMoviePlayerController *player = notification.object;
    if (player.loadState & MPMovieLoadStatePlayable)
    {
        NSLog(@"Movie is Ready to Play");
        [player play];
    }
}

The movie should begin playing once it's ready.

Answer 3

Try this below code for play video from your project Resource :

  NSBundle *bundle = [NSBundle mainBundle];
  NSString *moviePath = [bundle pathForResource:@"map" ofType:@"mp4"];
  NSURL *movieURL = [[NSURL fileURLWithPath:moviePath] retain];

  MPMoviePlayerController *player =
  [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
  [player prepareToPlay];
  [player.view setFrame: self.view.bounds];  // player's frame must match parent's
  [self.view addSubview: player.view];
    // ...
  [player play];

Thanks..!