Subscribing for location changes while app is suspended in background.

[AnthonySmith01]

Is it possible for a Nativescript app to use geolocation while an app is in the background or suspended. For example, Apple provide a Significant-Change Location Service that from my understanding "wakes" the app up for an event?

https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/LocationAwarenessPG/CoreLocation/CoreLocation.html

Any examples or guidance out there? I've had trouble finding any :)
Basically, I'm trying to make an app that will prompt the user when they encounter a specific location (even if the app isn't currently open).

[AnthonySmith01]

For anyone looking at this issue, I incorporated the following into my nativescript-geolocation (which seems to work for the significant location api). It's pretty much a modified copy of watchLocation (It's rough and hasn't been thoroughly tested so use with care):

function checkLocation(successCallback, errorCallback, options) {
var locListener = LocationListenerImpl.initWithLocationError(successCallback, errorCallback);
try {
var iosLocManager = LocationMonitor.createiOSLocationManager(locListener, options);
iosLocManager.startMonitoringSignificantLocationChanges();
return locListener.id;
}
catch (e) {
LocationMonitor.stopLocationMonitoring(locListener.id);
errorCallback(e);
return null;
}
}
exports.checkLocation = checkLocation;

[TLmaK0]

We should add:

iosLocManager.allowsBackgroundLocationUpdates = true;

https://developer.apple.com/reference/corelocation/cllocationmanager/1620568-allowsbackgroundlocationupdates
apache/cordova-plugin-geolocation#51

[MrVonkey]

@TLmaK0 There is a pull request for this issue: #49

[DimitarTachev]

The @MrVonkey's changes were merged and the option is available in v4.1.0.