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I'm currently attempting to set up background audio for an app I'm developing for iOS 4. The app doesn't have a dedicated music player viewController , however, unlike other background audio apps such as Pandora, which makes the task a bit more confusing. I've set the appropriate Info.plist settings correctly and have an AVAudioPlayer object in my app delegate which is accessible from everywhere. When the user plays a song, I replace the AVAudioPlayer with a new one initialized with the song and play it. This all works great, except now I have no idea how to go about supporting remote control events. Based on Apple's documentation, I have this: - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; [[UIApplication sharedApplication] beginReceivingRemoteControlEvents]; [self becomeFirstResponder]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; [[UIApplication sharedApplication] endReceivingRemoteControlEvents]; [self resignFirstResponder]; } - (BOOL)canBecomeFirstResponder { return YES; } - (void)remoteControlReceivedWithEvent:(UIEvent *)event { switch(event.subtype) { case UIEventSubtypeRemoteControlTogglePlayPause: if([iPhoneAppDelegate backgroundAudioPlayer].playing) [iPhoneAppDelegate pauseBackgroundAudioPlayer]; else [iPhoneAppDelegate playBackgroundAudioPlayer]; break; } } The thing is, where do I put this? Apple's documentation seems to suggest this should go in some view controller somewhere, but my app has lots of view controllers and navigation controllers. Wherever I try to put this, for some reason tapping the Toggle Play/Pause button in the multitasking tray remote controls either causes the song to just pause for a moment and then unpause, or somehow causes the song to play twice.

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