I just started to play with AltBeacon library. I downloaded sample app from AltBeacon/android-beacon-library-reference and added the library reference to android-beacon-library-2.0.tar.gz . When I ran it on my MX4 device (MeiZu made in China) with Android 4.4, I saw the main activity but it behaved very slow. I clicked start ranging button, the new activity view was not responding as the same; it took many seconds to go back to previous view if I clicked back button. I'm curious about if the library is scanning too much on main thread causing the non-responsiveness, or because it's the device model itself not good fit for the beacon library implementation. Thanks!
ps. I added the iBeacon parser and still didn't see any output in the app, not sure if it's related with the problem above.