How to check if the device is connected via airplay?

Question

I had the problem to check if I am connected to an airplay device and if it is connected via mirroring or streaming. But the check needs to be done before the video started.

Answer 1

This is my solution

- (BOOL)isAudioSessionUsingAirplayOutputRoute
{
    /**
     * I found no other way to check if there is a connection to an airplay device
     * airPlayVideoActive is NO as long as the video hasn't started 
     * and this method is true as soon as the device is connected to an airplay device
     */
    AVAudioSession* audioSession = [AVAudioSession sharedInstance];
    AVAudioSessionRouteDescription* currentRoute = audioSession.currentRoute;
    for (AVAudioSessionPortDescription* outputPort in currentRoute.outputs){
        if ([outputPort.portType isEqualToString:AVAudioSessionPortAirPlay])
            return YES;
    }
    return NO;
}

To check if the airplay connection is mirroring you just have to check the screens count.

if ([[UIScreen screens] count] < 2)) {
    //streaming
}
else {
    //mirroring
}

If there is a better solution, let me know