External Accessory Framework bluetooth pair. conne

问题:

I want try read/write data with bluetooth

I try pairs:

Mac Book <-> iPod 4

custom device <-> iPod 4

I try this Apple sample (EADemo) https://developer.apple.com/library/ios/samplecode/EADemo/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010079

I created pair in the settings->bluetooth:

Mac Book <-> iPod 4 - ok (connected)

custom device <-> iPod 4 - ok (connected)

But

[[EAAccessoryManager sharedAccessoryManager] connectedAccessories]

always get array with count 0.

Any ideas?

Thanks.

回答1:

The EADemo is using the External Accessory framework and therefore needs a protocol string added into the info.plist of your project. This is what apple use to lock down connections to non MFi accessories. For more info check out the MFi program