MPMoviePlayerController - detect pressing Next/Prev buttons - ios

Question

I'm using MPMoviePlayerController and I need to detect pressing Next/Prev buttons. I tried several things, none of which seem to works.
Here is what I tried:
remote control events
-(void) viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[self becomeFirstResponder];
}
-(void) viewWillDisappear:(BOOL)animated
{
[[UIApplication sharedApplication] endReceivingRemoteControlEvents];
[self resignFirstResponder];
[super viewWillDisappear:animated];
}
-(BOOL)canBecomeFirstResponder
{
return YES;
}
-(void)remoteControlReceivedWithEvent:(UIEvent *)receivedEvent
{
// stuff
}
The problem is remoteControlReceivedWithEvent method is never called. I've read that this will not work in iOS version higher than 6 - I'm working on iOS 7
notifications
I tried using MPMoviePlayerPlaybackStateDidChangeNotification and check against MPMoviePlaybackStateSeekingForward or MPMoviePlaybackStateSeekingBackward - unfortunatelly, these playback state are set when dragging the playback bar, not when pressing Next/Prev buttons.
Any ideas?

Answer 1

Sorry I don´t understand your problem very well, but if you want use the controls out your App in the Control Center, you can use:
// You need cath the singleton
MPRemoteCommandCenter *myRemote = [MPRemoteCommandCenter sharedCommandCenter];
//And add the selector you can fire depends on the button, a couple of examples:
[myRemote.playCommand addTarget:self action:#selector(myPlayMethods)];
[myRemote.nextTrackCommand addTarget:self action:#selector(myNextTrackMethods)];

Answer 2

try registering for event in :
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
// Turn on remote control event delivery
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
// Set itself as the first responder
[self becomeFirstResponder];
}
Also Don't set kAudioSessionProperty_OverrideCategoryMixWithOthers property

Answer 3

Have you tried MPMoviePlayerNowPlayingMovieDidChangeNotification?
If this does not work then i would suggest moving to a lower level API i.e. AVPlayer. It provides fine grained control over all the actions while video playing and otherwise.

Answer 4

You need to register to handle a notification for moviePlayerLoadStateChanged. When you press the next/prev buttons moviePlayerLoadStateChanged will be called and the loadState will be MPMovieLoadStateUnknown
-(void)registerMyStuff {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(moviePlayerLoadStateChanged:)
name:MPMoviePlayerLoadStateDidChangeNotification
object:self.mpc];
}
- (void)moviePlayerLoadStateChanged:(NSNotification *)notification
{
MPMoviePlayerController *moviePlayer = notification.object;
MPMovieLoadState loadState = moviePlayer.loadState;
if(loadState == MPMovieLoadStateUnknown)
{
// this is where the next/prev buttons notify
// there is no video in this state so load one
// just reload the default movie
NSLog(#"MPMovieLoadStateUnknown");
self.mpc.contentURL = self.fileURL;
[self.mpc prepareToPlay];
return;
}
else if(loadState & MPMovieLoadStatePlayable)
{
NSLog(#"MPMovieLoadStatePlayable");
}
else if(loadState & MPMovieLoadStatePlaythroughOK)
{
NSLog(#"MPMovieLoadStatePlaythroughOK");
} else if(loadState & MPMovieLoadStateStalled)
{
NSLog(#"MPMovieLoadStateStalled");
}
}

Answer 5

You change MPMoviePlayerController overlayView just like change UIImagePickerController overlayView to implement the function you need.
MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc]
initWithContentURL:someUrl];
moviePlayer.movieControlMode = MPMovieControlModeHidden;
[moviePlayer play];
NSArray *windows = [[UIApplication sharedApplication] windows];
if ([windows count] > 1) {
UIWindow *moviePlayerWindow = [[UIApplication sharedApplication] keyWindow];
[moviePlayerWindow addSubview:yourCustomOverlayView];
}