Ionic 3: BackgroundLocation updates are too rare - ionic-framework

Question

I'm currently facing a problem that is not so nice. I already created an issue but no response. I need every location change to update the camera center position. But this doesn't happen. The refresh is not definable with time. It's just very rare for my needs. Android and iOS is the same. The log is called every minute or something like that.
Also I tried the console log outside the ngZone but it's the same.
This is what my configuration code looks like:
let config = {
desiredAccuracy: 0,
stationaryRadius: 1,
distanceFilter: 0,
debug: true,
interval: 2000,
pauseLocationUpdates: false,
activityType: "AutomotiveNavigation"
};
this.backgroundGeolocation.configure(config).subscribe((location) => {
// Run update inside of Angular's zone
this.zone.run(() => {
if(this.map) {
this.map.getMyLocation().then( (userLocation: MyLocation) => {
console.log("INSIDE ZONE Google Maps Location \n LAT: " + userLocation.latLng.lat + "\nLNG: " + userLocation.latLng.lng);
this.userLocation = userLocation.latLng;
this.speed = userLocation.speed;
this.bearing = userLocation.bearing;
this.altitude = location.altitude;
this.cameraFollow();
this.notify(this.nearestReports[0]);
}).catch( error => {
alert("Background - NO GPS FOUND: " + error);
});
}
});
});
// Turn ON the background-geolocation system.
this.backgroundGeolocation.start();

Answer 1

Consider using another Ionic Native plugin called Geolocation.
There is a very handy watchPosition() function in there that looks like what you are looking for. Here's an example:
let options = {
enableHighAccuracy: true,
timeout: Infinity, // don't return response until new ping is available from OS, to save battery
maximumAge: 0
};
const subscription = this.geolocation.watchPosition(options)
.filter((p) => p.coords !== undefined) //Filter Out Errors
.subscribe(position => {
console.log(position.coords.longitude + ' ' + position.coords.latitude);
});
Don't forget to stop the subscription when not needed in order to save battery:
subscription.unsubscribe();