check whether headphones are plugged in when app starts

Question

I'm sorry about asking this question which is discussed here many times once again. But none of the answers haven't really helped me. All I need is to put some simple code in a viewDidLoad to check whether the headphones are plugged in or are not. (If they aren't I want to pop up simple message, but that's not what I'm asking how to do.) Any help?

Answer 1

This should achieve what you want (iOS 6+ compatible)

- (BOOL)areHeadphonesPluggedIn {
    NSArray *availableOutputs = [[AVAudioSession sharedInstance] currentRoute].outputs;
    for (AVAudioSessionPortDescription *portDescription in availableOutputs) {
        if ([portDescription.portType isEqualToString:AVAudioSessionPortHeadphones]) {
            return YES;
        }
    }
    return NO;
}

Answer 2

Here is the Swift 1.2 Version of the code written by Gabriele Petronella

//This method checks if headphones are plugged in.

func areHeadphonesPluggedIn()->Bool
{
    var availableOutputs = AVAudioSession.sharedInstance().currentRoute.outputs
    for portDescription in availableOutputs
    {
        if portDescription.portType == AVAudioSessionPortHeadphones
        {
            return true
        }
    }
    return false
}