Location Sources in MapsIndoors
Location Sources is a new feature introduced in version 3 of MapsIndoors SDK for Android and iOS. Basically we are making it possible to register your own custom location data source, adhering to a very simple interface.
The central concepts in this feature are Location Sources and Location Observers, and they are best described in the following illustration:
Maintains an array of locations and notifies its Location Observers about location and status updates.
Can observe a Location Source for status changes and location updates.
Creating your own Location Source
See a demo and tutorial of this feature for iOS. Of course there is more to it than just these interfaces, but assuming that working with the actual 3rd party data is an isolated problem, the setup steps is as follows:
- Implement a
LocationSourcethat pulls data from your own or a 3rd party database, API or backend and convert this data into MapsIndoors
- Pass the Locations as updates to MapsIndoors through the interface methods of the subscribing
LocationObserver’s in your
This feature is present in the MapsIndoors SDK for iOS version 3.0.0-alpha. To install this version, just follow the latest version 2.1.6 install guide. Replace the pod version to
3.0.0-alpha18 and run
Create an implementation of the
MPLocationSource interface, implementing all the required methods. When you call
MPLocationObserver.onLocationsUpdate() and provide results in
MPLocationSource.getLocations() you need to create instances of
MPLocation’s. This is done using a builder called
MPLocationUpdate. See an example here:
let locationUpdate = MPLocationUpdate.init(id: 134, from: self) //Set unique id locationUpdate.setType("ViewPoints") //Set type locationUpdate.addPropertyValue("Empire State Building", forKey: MPLocationFieldName) //Set name locationUpdate.setFloor(86) //Set floor index locationUpdate.setPosition(CLLocationCoordinate2DMake(40.7484445, -73.9878584)) //Set position let location = locationUpdate.location() //Generate location
While the location ID needs to be unique within your own Location Source, the ID does not need to be unique across all Location Sources.
When you have implemented all methods of your Location Source, you must register the source using the static method
MapsIndoors.register(). The following example adds the MapsIndoors default location source as well:
MapsIndoors.register([ MPMapsIndoorsLocationSource.init(), MyLocationsDataSource.init() ])
IOS Demo and Tutorial for Location Sources
A full demo example and tutorial is available here.