RE: App not receiving accessory connection notification (EAFramework)
RE: App not receiving accessory connection notification (EAFramework)
- Subject: RE: App not receiving accessory connection notification (EAFramework)
- From: Ephram Cohen <email@hidden>
- Date: Wed, 05 Sep 2012 11:40:05 -0700
Robert,
This is really an MFI question. There used to be an MFI forum, but it looks like Apple took it down.
Find the "obtaining developer technical support" pdf in your MFI portal for access to tech support on EAFramework.
Ephram
> -----Original Message-----
> From: bluetooth-dev-bounces+ecohen=email@hidden
> [mailto:bluetooth-dev-bounces+ecohen=email@hidden] On
> Behalf Of Robert Carlsen
> Sent: Wednesday, September 05, 2012 7:39 AM
> To: email@hidden
> Subject: App not receiving accessory connection notification
> (EAFramework)
>
> I'm not sure if this is the appropriate forum for classic Bluetooth /
> EAFramework, but I'll reach out here and follow-up with a rdar if
> necessary.
>
> We're observing an unexpected scenario when pairing a Bluetooth
> accessory. An app which declares an entry in the
> UISupportedExternalAccessoryProtocols plist key and declares the
> "external-accessory" UIBackgroundMode is not receiving the accessory
> connection notification in certain circumstances.
>
> Specifically, we install and launch the app (after a fresh boot of the
> phone). The app registers itself to receive the EAAccessoryManager's
> local notifications. The app is put in the background and the accessory
> is discovered and paired with in the iOS Bluetooth preferences. When
> the accessory is listed as "Connected" the app does not receive the
> expected connection notification. Furthermore, when the app is brought
> back to the foreground the EAAccessoryManager's connectedAccessories
> property does not contain the newly paired and connected accessory (it
> returns an empty array).
>
> The app *does* see the accessory in the connectedAccessories array
> after it has been force-quit and relaunched. Alternatively, the app
> will receive a connection notification (even while in the background)
> if the Bluetooth link with the accessory is severed and re-established.
>
> Has anyone observed something similar? Is there a more appropriate
> forum for this question?
>
> Regards,
> -Robert
>
>
> R/GA 350 West 39th Street New York, NY 10018
> http://www.rga.com/ http://www.twitter.com/rga
> http://www.facebook.com/rga
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