Overlay on top of Streaming MPMoviePlayerController

Question

I went through the example from apple \"MoviePlayer on iPhone\"

Im trying to overlay on top of the mpmovieplayercontroller,

it works perfectly with video cli

Answer 1

MPMoviePlayerController creates its own window and sets that as the key window - you probably know this already from the MoviePlayer sample app.

I don't know why, but there's a delay when the player uses a stream - so the keyWindow you get right after you initialize the player is likely not the player's window, since that seems to get added later.

You can "cheat" and use a timer to get the player window a few seconds later, and add your overlay:

[NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(addMyOverlay:) userInfo:nil repeats:FALSE]

Or you can listen for the UIWindowDidBecomeKeyNotification event, and do the same:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyWindowChanged:) name:UIWindowDidBecomeKeyNotification object:nil];

Neither option is great (I'd love to know a cleaner way to do this), but it gets the job done.

Answer 2

A very simple solution:

appDelegate.window.backgroundColor = [UIColor clearColor];
appDelegate.window.windowLevel = 2;

This will keep your app UI on top of the video window.

my post

Answer 3

Previous answer was based on timer. & fixed 5 seconds.

When Movie player begins, a new window is added to application.

Use a timer to check weather a new window is added to your application or not.

When a window ( movie player window ) is added. set notifications.

-(void)viewDidLoad{

    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(moviePreloadDidFinish:) 
                                                 name:MPMoviePlayerContentPreloadDidFinishNotification 
                                               object:nil];

    // Register to receive a notification when the movie has finished playing. 
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(moviePlayBackDidFinish:) 
                                                 name:MPMoviePlayerPlaybackDidFinishNotification 
                                               object:nil];

    // Register to receive a notification when the movie scaling mode has changed. 
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(movieScalingModeDidChange:) 
                                                 name:MPMoviePlayerScalingModeDidChangeNotification 
                                               object:nil];
    videoListController.xmlClassVideoList=t;
    // here ttttt is a timer declared in .h file
    tttttt=[NSTimer scheduledTimerWithTimeInterval:0.5 target:self      selector:@selector(startMy) userInfo:nil repeats:YES];  
}

-(void)startMy{
    NSArray *windows = [[UIApplication sharedApplication] windows];  
    NSLog(@"%i",[windows count]);
    // depends on your application window
    // it may be 1/2/3
    if ([windows count] > 3) {
        // Locate the movie player window
        [tttttt invalidate];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyWindowChanged:) name:UIWindowDidBecomeKeyNotification object:nil];
    }
}

Answer 4

You can overlay your view when you receive "MPMoviePlayerContentPreloadDidFinishNotification" notification.

Register for the notification:

    [[NSNotificationCenter defaultCenter] addObserver:self 
                                         selector:@selector(moviePreloadDidFinish:) 
                                             name:MPMoviePlayerContentPreloadDidFinishNotification 
                                           object:nil];

Add overlay view when receiving the notification:

//  Notification called when the movie finished preloading.
- (void) moviePreloadDidFinish:(NSNotification*)notification
{
    NSArray *windows = [[UIApplication sharedApplication] windows];
    if ([windows count] > 1)
    {
        // Locate the movie player window
        UIWindow *moviePlayerWindow = [[UIApplication sharedApplication] keyWindow];
        if ([moviePlayerWindow viewWithTag:0x3939] == nil) {
            self.videoOverlayView.tag = 0x3939;
            [moviePlayerWindow addSubview:self.videoOverlayView];
        }
        [moviePlayerWindow bringSubviewToFront:self.videoOverlayView];
    }
}