Isn't iBeacon built on top of Core Bluetooth? What stops you scanning in the background with CB?
Re:Shortwave: iBeacon-powered messaging
by eddieroger on Sunday May 11, 2014 @10:25AM
(#7728770)
Nothing. You can continue to range and monitor in the background, but you can not be a beacon in the background while using the blessed methods for doing so. I haven't dug in to CoreBluetooth directly, but the CLLocationManager abstraction layer doesn't allow you to broadcast in the background.
Yes that's true. Check https://github.com/CharruaLabs/AltBeacon to understand how it's done.
Re:Shortwave: iBeacon-powered messaging
by cryptnotic on Monday May 12, 2014 @02:15AM
(#7731413)
You should patent it.
Our goal was to be able to recognize that two shortwave users were within range of each other, even if both phones were locked, so we had to find a way to make these two APIs work together.
I'm working on a blog post that details how we did this. I hadn't thought of open-sourcing the code, but people seem interested so I'm more than happy to do so. I do have to warn you - this was my first foray into objective-c, so I'm sure there will be some shortcomings :)
I'll post it to hackernews when I wrap it up. I'm also @alonsoholmes on twitter, in case it doesn't make the front page.
Cheers!
- ah