public void PerformCalibration(EventHandler <CalibrationProgressEventArgs> handler)
{
if (!isCalibrating)
{
isCalibrating = true;
rangedBeacons.Clear();
percentComplete = 0.0f;
ProgressHandler = handler;
locationManager.StartRangingBeacons(region);
timer = NSTimer.CreateTimer(20.0f, (r) => {
locationManager.StopRangingBeacons(region);
DispatchQueue.DefaultGlobalQueue.DispatchAsync(new Action(delegate {
NSError error = null;
List <CLBeacon> allBeacons = new List <CLBeacon> ();
int measuredPower = 0;
if (!isCalibrating)
{
error = new CalibrationCancelledError();
}
else
{
foreach (CLBeacon[] beacons in rangedBeacons)
{
if (beacons.Length > 1)
{
error = new CalibrationCancelledError();
break;
}
else
{
allBeacons.AddRange(beacons);
}
}
if (allBeacons.Count == 0)
{
error = new CalibrationCancelledError();
}
else
{
allBeacons.Sort(delegate(CLBeacon x, CLBeacon y) {
return((x.ValueForKey(Rssi) as NSNumber).CompareTo(y.ValueForKey(Rssi)));
});
float power = 0;
int number = 0;
int outlierPadding = (int)(allBeacons.Count * 0.1f);
for (int k = outlierPadding; k < allBeacons.Count - (outlierPadding * 2); k++)
{
power += ((NSNumber)allBeacons [k].ValueForKey(Rssi)).FloatValue;
number++;
}
measuredPower = (int)power / number;
}
}
DispatchQueue.MainQueue.DispatchAsync(delegate {
CalibrationCompletionHandler(this, new CalibrationCompletedEventArgs()
{
MeasurePower = measuredPower,
Error = error
});
});
isCalibrating = false;
rangedBeacons.Clear();
}));
});
NSRunLoop.Current.AddTimer(timer, NSRunLoopMode.Default);
}
}
public void PerformCalibration (EventHandler<CalibrationProgressEventArgs> handler)
{
if (!isCalibrating) {
isCalibrating = true;
rangedBeacons.Clear ();
percentComplete = 0.0f;
ProgressHandler = handler;
locationManager.StartRangingBeacons (region);
timer = NSTimer.CreateTimer (20.0f, new NSAction (delegate {
locationManager.StopRangingBeacons (region);
DispatchQueue.DefaultGlobalQueue.DispatchAsync (new NSAction (delegate {
NSError error = null;
List<CLBeacon> allBeacons = new List<CLBeacon> ();
int measuredPower = 0;
if (!isCalibrating) {
error = new CalibrationCancelledError ();
} else {
foreach (CLBeacon[] beacons in rangedBeacons) {
if (beacons.Length > 1) {
error = new CalibrationCancelledError ();
break;
} else {
allBeacons.AddRange (beacons);
}
}
if (allBeacons.Count == 0) {
error = new CalibrationCancelledError ();
} else {
allBeacons.Sort (delegate (CLBeacon x, CLBeacon y) {
return (x.ValueForKey (Rssi) as NSNumber).CompareTo (y.ValueForKey (Rssi));
});
float power = 0;
int number = 0;
int outlierPadding = (int) (allBeacons.Count * 0.1f);
for (int k = outlierPadding; k < allBeacons.Count - (outlierPadding * 2); k++) {
power += ((NSNumber) allBeacons[k].ValueForKey (Rssi)).FloatValue;
number ++;
}
measuredPower = (int) power/number;
}
}
DispatchQueue.MainQueue.DispatchAsync (delegate {
CalibrationCompletionHandler (this, new CalibrationCompletedEventArgs () {
MeasurePower = measuredPower,
Error = error
});
});
isCalibrating = false;
rangedBeacons.Clear ();
}));
}));
NSRunLoop.Current.AddTimer (timer, NSRunLoopMode.Default);
}
}
