Are headphones plugged in? iOS7

Question

Developing an app for an iPhone with audio files that need to be listened too through headphones.

How do I check if headphones aren't plugged in so I can tell the user to plug in headphones.

I have the following code from another thread but the audioSessionGetProperty method is deprecated. Anyone know how to alter the following code to make this work OR have there own code/solution.

Thanks.

- (BOOL)isHeadsetPluggedIn {     UInt32 routeSize = sizeof (CFStringRef);     CFStringRef route;       //Maybe changing it to something like the following would work for iOS7?     //AVAudioSession* session = [AVAudioSession sharedInstance];     //OSStatus error = [session setCategory:kAudioSessionProperty_AudioRoute...?       //the line below is whats giving me the warning     OSStatus error = AudioSessionGetProperty (kAudioSessionProperty_AudioRoute,                                               &routeSize,                                               &route);      /* Known values of route:      * "Headset"      * "Headphone"      * "Speaker"      * "SpeakerAndMicrophone"      * "HeadphonesAndMicrophone"      * "HeadsetInOut"      * "ReceiverAndMicrophone"      * "Lineout"      */      if (!error && (route != NULL)) {          NSString* routeStr = (__bridge NSString*)route;          NSRange headphoneRange = [routeStr rangeOfString : @"Head"];          if (headphoneRange.location != NSNotFound) return YES;      }      return NO; } 

Answer 1

This should work, but I cannot test it right now, I'll do in the evening.

- (BOOL)isHeadsetPluggedIn {     AVAudioSessionRouteDescription* route = [[AVAudioSession sharedInstance] currentRoute];     for (AVAudioSessionPortDescription* desc in [route outputs]) {         if ([[desc portType] isEqualToString:AVAudioSessionPortHeadphones])             return YES;     }     return NO; }