Background Fetch

iOS Background Fetch Implementation. See: https://developer.apple.com/reference/uikit/uiapplication#1657399 iOS Background Fetch is basically an API which wakes up your app about every 15 minutes (during the user's prime-time hours) and provides your app exactly 30s of background running-time. This plugin will execute your provided callbackFn whenever a background-fetch event occurs. There is no way to increase the rate which a fetch-event occurs and this plugin sets the rate to the most frequent possible value of UIApplicationBackgroundFetchIntervalMinimum -- iOS determines the rate automatically based upon device usage and time-of-day (ie: fetch-rate is about ~15min during prime-time hours; less frequently when the user is presumed to be sleeping, at 3am for example). For more detail, please see https://github.com/transistorsoft/cordova-plugin-background-fetch

https://github.com/transistorsoft/cordova-plugin-background-fetch

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Installation #

Capacitor
Cordova
Enterprise

$ npm install cordova-plugin-background-fetch $ npm install @ionic-native/background-fetch $ ionic cap sync

$ ionic cordova plugin add cordova-plugin-background-fetch $ npm install @ionic-native/background-fetch

Supported Platforms#

Usage#

React#

Learn more about using Ionic Native components in React

Angular#

import { BackgroundFetch, BackgroundFetchConfig } from '@ionic-native/background-fetch/ngx';

constructor(private backgroundFetch: BackgroundFetch) {
  const config: BackgroundFetchConfig = {    stopOnTerminate: false, // Set true to cease background-fetch from operating after user "closes" the app. Defaults to true.  }
  backgroundFetch.configure(config)     .then(() => {         console.log('Background Fetch initialized');
         this.backgroundFetch.finish();
     })     .catch(e => console.log('Error initializing background fetch', e));
  // Start the background-fetch API. Your callbackFn provided to #configure will be executed each time a background-fetch event occurs. NOTE the #configure method automatically calls #start. You do not have to call this method after you #configure the plugin  backgroundFetch.start();
  // Stop the background-fetch API from firing fetch events. Your callbackFn provided to #configure will no longer be executed.  backgroundFetch.stop();

}