geofencing for multiple region for xamarin ios

Question

I need entry and exit notification in my app. so I have written below code for the same and it is working as expected. but i want to check for multiple overlay or region.

for an example i have set of 3 overlay or region with specific coordinates. i want to check entry and exit for the region near by user's current location .

            if (pointregion.ContainsCoordinate(location.Coordinate) && Entryregion == false)
            {
                Entryregion = true; Exitregion = false;
                ShowNotification("You are just in " + pointregionname + " region", "Alert");
            }
            if (!pointregion.ContainsCoordinate(location.Coordinate) && Entryregion == true)
            {
                Entryregion = false; Exitregion = true;
                ShowNotification("You are just left " + pointregionname + " region", "Alert");
            }

Answer 1

You should maybe make use of CLLocation​Manager 's region monitoring and set up geofencing regions.

1. Create a list of CLCircularRegion or other CLRegion type.

2. Add all the regions by calling locationManager.StartMonitoring(yourRegion) for each region.

3. When you are done with a specific region remove it by calling locationManager.StopMonitoring(yourRegion)

Then when a region is entered or left the RegionLeft(CLLocationManager manager, CLRegion region) or RegionEntered(CLLocationManager manager, CLRegion region) delegate methods will be called. You will need to override these methods in a CLLocationManagerDelegate class.