onBeaconsDiscovered and Threads

BLE Beacons
1

Hey all,

I’m having some troubles using threads and ranging in my app.

beaconManager.setRangingListener(new BeaconManager.RangingListener() {
        @Override
        public void onBeaconsDiscovered(Region region, List<Beacon> list) {         
                beaconsFound(list);
         }
  });

Does the code in onBeaconsDiscovered run on a separate thread? If I want to use an AsyncTask in my code, is it better to open a new thread to each beacon discovered or to send the whole discovered list to the same AsyncTask? Known that the same beacons are discovered multiple times in a short period of time…

2

onBeaconsDiscovered is called on the main thread. (Or, to be more precise, on the message queue of the thread that instantiated the BeaconManager.) If you want to perform some heavy-duty tasks in it, AsyncTask is a good idea.

Correct, although you may try to influence that with setForegroundScanPeriod. For example, tell it to scan for 5 seconds instead of the default 1 second.