Getting Could not find job 999 error

Your Environment

• Plugin version: 7.0.3
• Platform: Android
• OS version: Android 11
• Device manufacturer / model: Android Emulator
• React Native version (react-native -v): It’s ionic cordova application.
• Plugin config: { stopOnTerminate: false, startOnBoot: true, minimumFetchInterval: 15, enableHeadless: true, requiredNetworkType: BackgroundFetch.NETWORK_TYPE_ANY }

Following is the code:

import { Injectable } from '@angular/core';
import { CoreNonInjectableBase } from "../../base/core-noninjectable.base";
import { Network } from "@ionic-native/network";
import { ToastController, Platform } from "ionic-angular";
import BackgroundFetch, { BackgroundFetchConfig } from "cordova-plugin-background-fetch";


/*
  Generated class for the BackgroundServiceProvider provider.

  See https://angular.io/guide/dependency-injection for more info on providers
  and Angular DI.
*/
@Injectable()
export class BackgroundServiceProvider extends CoreNonInjectableBase {

  constructor(
    private network: Network,
    private platform: Platform,
    private backgroundFetch: BackgroundFetch
  ) {
    super();
    this.platform.ready().then(result => {
      //if (this.platform.is('ios') || this.platform.is('android')) {
        localStorage.setItem('success schedule task', 'init');
        this.onDeviceReady.bind(this)
      //}
    });
  }

  async onDeviceReady() {
    let config: BackgroundFetchConfig = {
      stopOnTerminate: false,
      startOnBoot: true,
      minimumFetchInterval: 15,
      enableHeadless: true,
      requiredNetworkType: BackgroundFetch.NETWORK_TYPE_ANY
    }
    console.log('device on ready in Background service');
    // Your BackgroundFetch event handler.
    let onEvent = async (taskId) => {
      localStorage.setItem('[BackgroundFetch] event received 121212: ', taskId);
      // Required: Signal completion of your task to native code
      // If you fail to do this, the OS can terminate your app
      // or assign battery-blame for consuming too much background-time
      await BackgroundFetch.finish(taskId);
    };

    // Timeout callback is executed when your Task has exceeded its allowed running-time.
    // You must stop what you're doing immediately BackgroundFetch.finish(taskId)
    let onTimeout = async (taskId) => {
      localStorage.setItem('[BackgroundFetch] TIMEOUT: ', taskId);
      await BackgroundFetch.finish(taskId);
    };

    // Configure the plugin.
    let status = await BackgroundFetch.configure(config, onEvent, onTimeout);
    console.log('[BackgroundFetch] configure, status: ', status);


    await BackgroundFetch.scheduleTask({
      taskId: "com.transistorsoft.downloadWalkthroughData",
      forceAlarmManager: true,
      delay: 6 * 1000,
      periodic: true// <-- milliseconds
    });
  }

  makeServerCall() {
    
  }

}

Expected Behavior

When I terminate application from multitasker then and when I run jobschedular command then it should show log from headless java file.

Actual Behavior

see logs.

Steps to Reproduce

Context

My ionic app works offline and I am using sqlite db in it, so I am trying to pre-download some app data from my web api and store that in sqlite in advance so that users can perform actions without worrying about internet connection.

Debug logs

adb shell cmd jobscheduler run -f com.my.app 999 output: Could not find job 999 in package com.my.app / user 0

[christocracy]

I don’t think you understand what JavaScript Function.bind does.

this.onDeviceReady.bind(this)

It doesn’t actually execute onDeviceReady, it returns another Function with its scope changed.

[christocracy]

And in the meantime, be aware that your onDeviceReady is NOT executing, thus BackgroundFetch.configure is not even being executed, which is why you see Could not find job 999 in package com.my.app / user 0.