Scans for iBeacons and Eddystone beacons

Change Log

• iOS
• Android 4.3+
• Windows UWP

Install the following nuget package to all of your platform code and PCL/Core libraries

Android - add the following to your Android app manifest

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

<!--this is necessary for Android v6+ to get the device name and address-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

iOS - add the following to your Info.plist if monitoring Add the following for iBeacon background scanning

<key>NSLocationAlwaysUsageDescription</key>
<string>The beacons always have you!</string>

If using Eddystone, add the following for background scanning

<array>
<string>bluetooth-central</string>
</array>

<!--To add a description to the Bluetooth request message (on iOS 10 this is required!)-->
  
<key>NSBluetoothPeripheralUsageDescription</key>
<string>YOUR CUSTOM MESSAGE</string>

var scanner = BeaconService.Instance.Scan().Subscribe(scanResult => {
    // do something with it
});

scanner.Dispose(); // to stop scanning

Once you have successfully scanned for a device, use the instance

Device.WhenServicesDiscovered().Subscribe(service => 
{
    service.W
});

• Q) Why is everything reactive instead of events/async

  A) I wanted event streams as I was scanning devices. I also wanted to throttle things like characteristic notification feeds. Lastly, was the proper cleanup of events and resources.