robingenz / capacitor-background-task

Background Task

@robingenz/capacitor-background-task

Capacitor plugin for running background tasks.

Maintainers

Installation

npm install @robingenz/capacitor-background-task
npx cap sync

Configuration

No configuration required for this plugin.

Demo

A working example can be found here: robingenz/capacitor-plugin-demo

Usage

import { App } from '@capacitor/app';
import { BackgroundTask } from '@robingenz/capacitor-background-task';

App.addListener('appStateChange', async ({ isActive }) => {
  if (isActive) {
    return;
  }
  // The app state has been changed to inactive.
  // Start the background task by calling `beforeExit`.
  const taskId = await BackgroundTask.beforeExit(async () => {
    // Run your code...
    // Finish the background task as soon as everything is done.
    BackgroundTask.finish({ taskId });
  });
});

API

• beforeExit(...)
• finish(...)
• Interfaces
• Type Aliases

beforeExit(...)

beforeExit(cb: () => void) => Promise<CallbackID>

Call this method when the app moves to the background. It allows the app to continue running a task in the background.

On iOS this method should be finished in less than 30 seconds.

Only available for Android and iOS.

Returns: Promise<string>

finish(...)

finish(options: FinishOptions) => void

Finish the current background task. The OS will put the app to sleep.

Only available for Android and iOS.

Interfaces

FinishOptions

Type Aliases

CallbackID

string

Quirks

iOS

On iOS the UIKit framework is used. Read more about the implementation and any limitations here.

Android

There is currently no ready implementation on Android. It's planned to add the support in the near future.

Changelog

See CHANGELOG.md.

License

See LICENSE.