The plugin only takes the geolocation once

[Absant94]

Your Environment

Plugin version: cordova-plugin-background-geolocation 3.1.0 "CDVBackgroundGeolocation" Platform: Android OS version: 10 Device manufacturer and model: XIAOMI REDMI NOTE 9 PRO

• Running in Simulator: Cordova version (cordova -v): 10.0.0 Cordova platform version (cordova platform ls): Installed platforms: android 8.1.0
  Available platforms: browser ^6.0.0
  electron ^1.0.0
  windows ^7.0.0
• Plugin configuration options:
• Link to your project:

Context

This is my first time using this library and I dont know why but this doest work properly. This is my code:

`import { Injectable } from '@angular/core';
import { BackgroundGeolocation, BackgroundGeolocationConfig, BackgroundGeolocationEvents, BackgroundGeolocationResponse } from '@ionic-native/background-geolocation/ngx';

import { LocalNotifications } from '@ionic-native/local-notifications/ngx';

declare var window;
@Injectable({
  providedIn: 'root'
})

export class BackgroundGPSService {


  config: BackgroundGeolocationConfig = {
    desiredAccuracy: 0,
    stationaryRadius: 10,
    distanceFilter: 5,
    debug: true, //  enable this hear sounds for background-geolocation life-cycle.
    stopOnTerminate: false, // enable this to clear background location settings when the app terminates
  };

  locations:any;
  contador=0;

  constructor( private backgroundGeolocation: BackgroundGeolocation, private localNotifications: LocalNotifications) {

    this.locations=[];

    this.backgroundGeolocation.configure(this.config).then(() => {
      this.backgroundGeolocation.on(BackgroundGeolocationEvents.location).subscribe((location: BackgroundGeolocationResponse) => {
      console.log('Locations', location);
      console.log('Speed', location.speed); // Tracks the speed of user
        this.contador ++;

        this.showNotification(this.contador+" "+location.latitude+" "+location.longitude)

 });
});
   }

   StartBackgroundTracking(){

   this.backgroundGeolocation.start();
   }

   StopBackgroundGeolocation(){

     this.backgroundGeolocation.stop();
   }

  showNotification(data){
    // Schedule a single notification
    this.localNotifications.schedule({
      id: 1,
      text: JSON.stringify(data),
      sound: 'file://sound.mp3',
      data: { secret: "key" }
    });
  }

  /**Hasta aqui */
}

Im testing the app in a xiaomi redmi note 9 pro.

Expected Behavior

What I want is to recieve a notificaction with a counter + latitude+ longitude each time that I change of location.

Actual Behavior

The problem is that this doesnt work properly. When I lauch this.backgroundGeolocation.start(); this only takes the location once. After this u can see the notification with the first latitude and longitude, but this is all. This never changes, except sometimes that this show 2 location points when u launch it (the two proint are an aproximation from where u are , and the second is where u are).

Possible Fix

Steps to Reproduce

1.I install the plugin and I add :

import { BackgroundGeolocation} from '@ionic-native/background-geolocation/ngx';

NgModule({
  declarations: [AppComponent],
  entryComponents: [],
  imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule],
  providers: [
...
    BackgroundGeolocation,
...
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

to app.module.ts 2. I create a services called background-gpsservice.service.ts and I add:

import { Injectable } from '@angular/core';
import { BackgroundGeolocation, BackgroundGeolocationConfig, BackgroundGeolocationEvents, BackgroundGeolocationResponse } from '@ionic-native/background-geolocation/ngx';

import { LocalNotifications } from '@ionic-native/local-notifications/ngx';

declare var window;
@Injectable({
  providedIn: 'root'
})

export class BackgroundGPSService {


  config: BackgroundGeolocationConfig = {
    desiredAccuracy: 0,
    stationaryRadius: 10,
    distanceFilter: 5,
    debug: true, //  enable this hear sounds for background-geolocation life-cycle.
    stopOnTerminate: false, // enable this to clear background location settings when the app terminates
  };

  locations:any;
  contador=0;

  constructor( private backgroundGeolocation: BackgroundGeolocation, private localNotifications: LocalNotifications) {

    this.locations=[];

    this.backgroundGeolocation.configure(this.config).then(() => {
      this.backgroundGeolocation.on(BackgroundGeolocationEvents.location).subscribe((location: BackgroundGeolocationResponse) => {
      console.log('Locations', location);
      console.log('Speed', location.speed); // Tracks the speed of user
        this.contador ++;

        this.showNotification(this.contador+" "+location.latitude+" "+location.longitude)

      // IMPORTANT:  You must execute the finish method here to inform the native plugin that you're finished,
     // and the background-task may be completed.  You must do this regardless if your operations are successful or not.
    // IF YOU DON'T, ios will CRASH YOUR APP for spending too much time in the background.
   // this.backgroundGeolocation.finish(); // FOR IOS ONLY
 });
});
   }

   StartBackgroundTracking(){
    this.backgroundGeolocation.start();
   }

   StopBackgroundGeolocation(){

     this.backgroundGeolocation.stop();
   }

  
  showNotification(data){
    // Schedule a single notification
    this.localNotifications.schedule({
      id: 1,
      text: JSON.stringify(data),
      sound: 'file://sound.mp3',
      data: { secret: "key" }
    });
  }


}

3. After this I add a new tab to my app with two buttons calling the methods StartBackgroundTracking() and StopBackgroundGeolocation() from the service background-gpsservice.service that I created before.

4. The app show the notification with "background traking enables" and few second after this, shows the notification with the counter+latitude+longitude.

5. In theory it should continue showing the new coordinates when Im moving , but this doesnt happends.

Context

This is really a big problem because I need a app with background tracking, and this give me the position only once.

Debug logs

[johndoe99999johndoe]

I have the same issue on devices Android 10 and Android 11; and in both of Emulators.

I even tried other forks claiming keep working in background but no success. For example this one mentioned on this project: 749

[luisurruela]

I have tha same problem, just in android, in iOS seems to be working fine. I keep looking for a solution for this issue. Any of you made it work?