How do I know if an external headset is connected to the iPhone?

Question

Is it possible to detect that the user has an external headset connected to the iPhone’s 3.5 mm jack or 30-pin jack? I want to output sound only to an external audio device and be silent if nothing is connected.

Answer 1

The answer is very similar to the answer to this question , but you will want to get kAudioSessionProperty_AudioRoute .

Answer 2

Call this method to find out if a Bluetooth headset is connected.

First import this #import <AVFoundation/AVFoundation.h>

 - (BOOL) isBluetoothHeadsetConnected { AVAudioSession *session = [AVAudioSession sharedInstance]; AVAudioSessionRouteDescription *routeDescription = [session currentRoute]; NSLog(@"Current Routes : %@", routeDescription); if (routeDescription) { NSArray *outputs = [routeDescription outputs]; if (outputs && [outputs count] > 0) { AVAudioSessionPortDescription *portDescription = [outputs objectAtIndex:0]; NSString *portType = [portDescription portType]; NSLog(@"dataSourceName : %@", portType); if (portType && [portType isEqualToString:@"BluetoothA2DPOutput"]) { return YES; } } } return NO; }