How to get list of paired Bluetooth headsets on iPhone?

Question

I'm trying to get the list of paired Bluetooth headset devices on my iPhone. I tried the External Accessory Framework as below:

[[EAAccessoryManager sharedAccessoryManager] registerForLocalNotifications];
NSArray *accessories = [[EAAccessoryManager sharedAccessoryManager] connectedAccessories];

but accessories array is always empty. Did I miss something? what is the right way of getting the list of attached Bluetooth headsets?

Assuming I could get the list of Bluetooth headsets, is there a way to redirect audio output to a certain Bluetooth headset?

according to the code below, there is no way to pick which device to send audio to:

UInt32 allowBluetoothInput = 1;
AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryEnableBluetoothInput,
                                sizeof (allowBluetoothInput), &allowBluetoothInput);

Thanks for your help,

Mehrdad

PS: I also tried Apple's sample app which practices External Accessory Framework, no luck!

The external accessory framework is only for the 30 pin dock connector. — JustSid, May 05 '11 at 08:06
@JustSid According to Apple's documentation, External Accessory Framework supports external devices wirelessly connected via Bluetooth: "The External Accessory framework provides support for communicating with external hardware connected to an iOS-based device through the 30-pin dock connector or wirelessly using Bluetooth." — Mehrdad M, May 06 '11 at 05:00
Any luck with this? I'm trying to do the same thing with minimal success. Just want to help pair with a bluetooth headset via an app. — Chazbot, Feb 26 '12 at 21:54

score 2 · Answer 1 · answered May 15 '12 at 00:18

2

Did you ever resolve this? I'm new to the External Accessory Framework, but from what I've found this framework only supports MFi compliant devices: http://developer.apple.com/library/ios/#qa/qa1657/_index.html

answered May 15 '12 at 00:18

mkr707

21
3

score 0 · Answer 2 · edited May 23 '17 at 11:58

To resolve this I used AVAudioSeesion from AVFoundation.framework and checked the available inputs with this line of code:

NSArray *availInputs = [[AVAudioSession sharedInstance] availableInputs];

if you also need notifications when new device is connected or disconnected you can register observer to AVAudioSessionRouteChangeNotification (you have to open setup new AVAudioSession)

please check my full answer here: https://stackoverflow.com/a/29367963/1787109

How to get list of paired Bluetooth headsets on iPhone?

2 Answers2