When app is killed then background geolocation doen't call web service for tracking

[aaronharper123]

In below code i call web service at every 30 seconds , this code is fine when app is in running mode or background but when app is not running i.e. killed then no any web service is called. I want to call web service when app is killed also.

Your Environment

import { Injectable, NgZone } from '@angular/core'; import {ToastController} from 'ionic-angular'; import 'rxjs/add/operator/filter'; import { BackgroundGeolocation,BackgroundGeolocationConfig,BackgroundGeolocationResponse } from '@ionic-native/background-geolocation'; import { Geolocation, Geoposition } from '@ionic-native/geolocation'; import { ServerPushProvider } from '../server-push/server-push'; import { HttpService } from '../../pages/services/httpService'; import {Observable} from 'rxjs/Observable'; import 'rxjs/add/observable/of'; import { BatteryStatus } from '@ionic-native/battery-status'; import { BackgroundMode } from '@ionic-native/background-mode'; import { LocalNotifications } from '@ionic-native/local-notifications'; import { DbHandlerProvider } from '../db-handler/db-handler'; import moment from 'moment'; import { Diagnostic } from '@ionic-native/diagnostic'; declare let cordova: any;

@Injectable() export class LocationTracker {

  public watch: any;
  public lat: any;
  public lng: any;
  public cuuDate: any;
  public batteryLevel: number;
  public arrLocations: any = [];
  arrTime: any = [];
  locationInterval: number;
  UserId: any;

constructor(public zone: NgZone, public backgroundGeolocation: BackgroundGeolocation, private geolocation: Geolocation, public toastCtrl: ToastController, public serverPush: ServerPushProvider, public httpService: HttpService, public batteryStatus: BatteryStatus,private backgroundMode: BackgroundMode, private localNotifications: LocalNotifications, private diagnostic: Diagnostic, private dbHandlerProvider: DbHandlerProvider) { console.log('Hello LocationTrackerProvider Provider');

}

startTracking() {

  let now: any = new Date();
  now = moment(now).format();

  if(localStorage.getItem('UserId') == null){
      this.backgroundGeolocation.stop();
  } else {
      this.UserId = localStorage.getItem('UserId');
  }

  /////  For get location when device is in background
  this.cuuDate = new Date();
  this.cuuDate = moment(this.cuuDate).format();
  const subscription = this.batteryStatus.onChange().subscribe(status => {
       console.log(status.level, status.isPlugged);
       this.batteryLevel = status.level;
    });
  this.getForegroundLocation();
  this.startBackgroundLocation();

}

getForegroundLocation() { this.geolocation.getCurrentPosition({ enableHighAccuracy: true, timeout: 10000 }).then(loc => { if(this.httpService.isOnline()){ this.arrLocations = this.dbHandlerProvider.get_location(); console.log('Location Data first: '+JSON.stringify(this.arrLocations)); setTimeout(()=> { if(this.arrLocations.length == 0){ // alert('1: '+this.arrLocations.length); this.serverPush.pushPosition({ UserId: this.UserId, LocationData: [ { Lat: loc.coords.latitude, Long: loc.coords.longitude, Date: this.cuuDate, BatteryPerc: this.batteryLevel } ] }); } else { this.serverPush.pushPosition({ UserId: this.UserId, LocationData: this.arrLocations }); setTimeout(() => { // delete database records this.dbHandlerProvider.delete_location(); },3000); } },1000); } else { this.dbHandlerProvider.add_location(loc.coords.latitude,loc.coords.longitude,this.cuuDate,this.batteryLevel); } }); }

startBackgroundLocation() {

  if(localStorage.getItem('UserId') == null){
      this.backgroundGeolocation.stop();
  } else {
      this.UserId = localStorage.getItem('UserId');
  }

   let config = {
     desiredAccuracy: 0,
     stationaryRadius: 0,
     distanceFilter: 0,
     notificationTitle: 'Background tracking',
     notificationText: 'ENABLED',
     foregroundService: true,
     debug: false,
     interval: 30000,
     url: 'http://property.zoomi.in:86/api/User/UserTracking',
     httpHeaders: {
      "Content-Type": "application/json"
    },
    postTemplate: {
        "UserId": this.UserId,    //  <-- Android ONLY:  HTTP POST params sent to your server when persisting locations.
        "LocationData": [
        {
          "Lat": this.lat,
          "Long": this.lng,
          "Date": this.cuuDate,
          "BatteryPerc": this.batteryLevel
        }
        ]
    },
     method: 'POST',
     autoSync: true,
     stopOnTerminate: false
   };

   this.backgroundGeolocation.configure(config).subscribe((location) => {

       let toast = this.toastCtrl.create({ message: 'Latlng updated successfully', duration: 1000, position: 'bottom'});
       toast.present();

       console.log('Lat: '+location.latitude + ' :: '+location.longitude );

       let aa = {
           title: 'Background Tracking',
           text: location.latitude + ' :: '+ location.longitude
       }
       cordova.plugins.notification.local.schedule(aa);

       this.lat = location.latitude
       this.lng = location.longitude

       this.cuuDate = new Date();
       this.cuuDate = moment(this.cuuDate).format();
       const subscription = this.batteryStatus.onChange().subscribe(status => {
            console.log(status.level, status.isPlugged);
            this.batteryLevel = status.level;
         });

         if( this.httpService.isOnline() ) {
             this.arrLocations = this.dbHandlerProvider.get_location();
             console.log('Location Data: '+JSON.stringify(this.arrLocations));
             setTimeout(()=> {
                 if(this.arrLocations.length == 0) {
                     // alert('3: '+this.arrLocations.length);
                     this.serverPush.pushPosition({
                         UserId: this.UserId,
                         LocationData: [
                            {
                              Lat: location.latitude,
                              Long: location.longitude,
                              Date: this.cuuDate,
                              BatteryPerc: this.batteryLevel
                            }
                          ]
                     });
                 } else {
                     console.log('4: '+this.arrLocations.length);
                     this.serverPush.pushPosition({
                         UserId: this.UserId,
                         LocationData: this.arrLocations
                     });
                     setTimeout(() => {
                         // delete databse records
                         this.dbHandlerProvider.delete_location();
                   },3000);
                 }
             },1000);
         } else {
             this.dbHandlerProvider.add_location(this.lat,this.lng,this.cuuDate,22);
         }

        this.backgroundGeolocation.finish();

   }, (err) => {
     console.log(err);
   });

   this.backgroundGeolocation.start();

}

stopTracking() {

  console.log('stopTracking');

  this.backgroundGeolocation.stop();

}

}

[mauron85]

you've put a great effort into writing a lot in the issue, but please update it with the issue-template I provide.

[aaronharper123]

i will update you with proper code, but please tell me first, if this plugin is also work when app is killed?

[aaronharper123]

import { Injectable, NgZone } from '@angular/core'; import {ToastController} from 'ionic-angular'; import 'rxjs/add/operator/filter'; import { BackgroundGeolocation,BackgroundGeolocationConfig,BackgroundGeolocationResponse } from '@ionic-native/background-geolocation'; import { Geolocation, Geoposition } from '@ionic-native/geolocation'; import { ServerPushProvider } from '../server-push/server-push'; import { HttpService } from '../../pages/services/httpService'; import {Observable} from 'rxjs/Observable'; import 'rxjs/add/observable/of'; import { BatteryStatus } from '@ionic-native/battery-status'; import { BackgroundMode } from '@ionic-native/background-mode'; import { LocalNotifications } from '@ionic-native/local-notifications'; import { DbHandlerProvider } from '../db-handler/db-handler'; import moment from 'moment'; import { Diagnostic } from '@ionic-native/diagnostic'; declare let cordova: any; @Injectable() export class LocationTracker {

  public lat: any;
  public lng: any;
  public cuuDate: any;
  public arrLocations: any = [];
  UserId: any = '4';

constructor(public zone: NgZone, public backgroundGeolocation: BackgroundGeolocation, private geolocation: Geolocation, public serverPush: ServerPushProvider, public httpService: HttpService, public batteryStatus: BatteryStatus, private dbHandlerProvider: DbHandlerProvider) { console.log('Hello LocationTrackerProvider Provider'); this.cuuDate = new Date(); this.startTracking();

}

startTracking() { this.getForegroundLocation(); this.startBackgroundLocation(); }

getForegroundLocation() { this.geolocation.getCurrentPosition({ enableHighAccuracy: true, timeout: 10000 }).then(loc => { if(this.httpService.isOnline()){ this.serverPush.pushPosition({ UserId: this.UserId, LocationData: [ { Lat: loc.coords.latitude, Long: loc.coords.longitude, Date: this.cuuDate, BatteryPerc: 44 } ] });

       } else {
           //   store in database
       }
   });

}

startBackgroundLocation() {

     let config = {
     desiredAccuracy: 0,
     stationaryRadius: 0,
     distanceFilter: 0,
     notificationTitle: 'Background tracking',
     notificationText: 'ENABLED',
     foregroundService: true,
     debug: false,
     interval: 5000,
     url: 'http://property.zoomi.in:86/api/User/UserTracking',
     httpHeaders: {
      "Content-Type": "application/json"
    },
    postTemplate: {
        "UserId": this.UserId,    //  <-- Android ONLY:  HTTP POST params sent to your server when persisting locations.
        "LocationData": [
        {
          "Lat": this.lat,
          "Long": this.lng,
          "Date": this.cuuDate,
          "BatteryPerc": 44
        }
        ]
    },
     method: 'POST',
     autoSync: true,
     stopOnTerminate: false
 };

   this.backgroundGeolocation.configure(config).subscribe((location) => {

           console.log('Lat: '+location.latitude + ' :: '+location.longitude );

           this.lat = location.latitude;
           this.lng = location.longitude;

           if( this.httpService.isOnline() ) {
               // this.arrLocations = this.dbHandlerProvider.get_location();

                       // alert('3: '+this.arrLocations.length);
                       this.serverPush.pushPosition({
                       UserId: this.UserId,
                       LocationData: [
                           {
                               Lat: location.latitude,
                               Long: location.longitude,
                               Date: this.cuuDate,
                               BatteryPerc: 44
                           }
                       ]
                   })
       } else {
           // store in databse
       }
       this.backgroundGeolocation.finish();

   }, (err) => {
     console.log(err);
   });

   this.backgroundGeolocation.start();

}

stopTracking() {

  console.log('stopTracking');

  this.backgroundGeolocation.stop();

}

}

[aaronharper123]

please see above code, my problem is that i can not get location when app is killed. (i.e. this plugin is not work when app is not running for me)

[devahernandez]

I have the same problem, the application stops working when it is completely closed. It works well in the background and close-up.

[blgsyrmhnds]

are there any solution for that?Whep I close app tracking geolacation stop It does not work background for android and IOS

[sakthibro]

use background mode plugin

[aaronharper123]

@sakthibro The app is worked fine in the background and in the foreground but not work after the app is killed.

[OFMaurice]

I have the same problem on android and ios. Foreground an background working fine but when the app is killed no more locations are posted to the url.

On Android i figured out that it is connected to the firebase plugin (cordova-plugin-firebase).

The destructor of the firebase plugin is called before the destructor of this plugin. And inside the firebase plugin destructor a 'System.exit(0);' is called and then the destructor of this plugin will not be called. When i uncomment -> '// System.exit(0);' it works fine.

Currently i am trying to firgure out whats the problem on ios..

@aaronharper123 do you have the firebase plugin installed also?

[mauron85]

The destructor of the firebase plugin is called before the destructor of this plugin. And inside the firebase plugin destructor a 'System.exit(0);' is called and then the destructor of this plugin will not be called.

Nice observation. Can you please report this as an issue to cordova-plugin-firebase?

[OFMaurice]

I have taken a look to the current master of cordova-plugin-firebase and there it's already fixed. So for me it seems to be fixed by updating the firebase plugin.

[papattes]

Hello !

In android, i don't have this problem. however, with ios this not work when app is killed. Any solutions ?

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This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

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