How to programmatically know Bluetooth headset is connected to iOS device

Call this method to find out the bluetooth headset is connected or not.

 

- (BOOL) isBluetoothHeadsetConnected
{
    AVAudioSession *session = [AVAudioSession sharedInstance];
    AVAudioSessionRouteDescription *routeDescription = [session currentRoute];

    DEBUGLOG(@"Current Routes : %@", routeDescription);

    if (routeDescription)
    {
        NSArray *outputs = [routeDescription outputs];

        if (outputs && [outputs count] > 0)
        {
            AVAudioSessionPortDescription *portDescription = [outputs objectAtIndex:0];
            NSString *portType = [portDescription portType];

            DEBUGLOG(@"dataSourceName : %@", portType);

            if (portType && [portType isEqualToString:@"BluetoothA2DPOutput"])
            {
                return YES;
            }
        }
    }

    return NO;
}
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