visakhraman / geofences

Cross platform geofencing library that works on iOS, Android, and Windows

ACR Geofence Plugin for Xamarin & Windows

A cross platform library for Xamarin & Windows that allows for easy geofence detection

PLATFORMS

Platform	Version
Xamarin.iOS	iOS 6+
Xamarin.Android	API 10+
Windows 10 UWP	10+

SETUP

Be sure to install the Plugin.Geofencing nuget package in all of your main platform projects as well as your core/NETStandard project

Android

Add the following to your AndroidManifest.xml

<!--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

<key>NSLocationAlwaysUsageDescription</key>
<string>Your message</string>

UWP

Add location to your app manifest capabilities section

<Capabilities>
    <DeviceCapability Name="location" />
</Capabilities>

HOW TO USE

To start monitoring

CrossGeofences.Current.StartMonitoring(new GeofenceRegion( 
    "My House", // identifier - must be unique per registered geofence
    Center = new Position(LATITUDE, LONGITUDE), // center point    
    Distance.FromKilometers(1) // radius of fence
));

Wire up to notifications

CrossGeofences.Current.RegionStatusChanged += (sender, args) => 
{
    args.State // entered or exited
    args.Region // Identifier & details
};

Stop monitoring a region

CrossGeofences.Current.StopMonitoring(GeofenceRegion);

or

CrossGeofences.Current.StopAllMonitoring();

FAQ

• Q) Why create another geofence plugin

  A) I felt like the integration or bloat in other geofence libraries (stay, notifications, etc). I also didn't like that Google Play Services were required in Android which required your device to be online when creating the geofences. This did not work with my requirements

• Q) Why use a cross platform GPS library for Android?

  A) James has done a ton of work around the Android geolocation mess. I didn't want to duplicate this. I just wanted to attach to an event and set the desired accuracy

• Q) Yes, but what about google play services?

  A) The amount of code necessary to register a geofence as well as all of the junk that came with it made it annoying and no less of a drain on the battery