Implementing Background Tasks

import AsyncStorage from '@react-native-async-storage/async-storage';

const storeData = async (key, value) => {
  try {
    await AsyncStorage.setItem(key, JSON.stringify(value));
  } catch (error) {
    console.error('Error storing data:', error);
  }
};

const getData = async (key) => {
  try {
    const value = await AsyncStorage.getItem(key);
    return value ? JSON.parse(value) : null;
  } catch (error) {
    console.error('Error retrieving data:', error);
    return null;
  }
};

// Example usage
storeData('userPreferences', { theme: 'dark', notifications: true });

import BackgroundFetch from 'react-native-background-fetch';

BackgroundFetch.configure({
  minimumFetchInterval: 15, // Fetch every 15 seconds
  stopOnTerminate: false,
}, (taskId) => {
  console.log('[BackgroundFetch] Fetch task: ' + taskId);
  // Perform data sync or other background work
  BackgroundFetch.finish(taskId);
});

import Geolocation from '@react-native-community/geolocation';

Geolocation.configure({
  enableHighAccuracy: true,
  distanceFilter: 10,
  interval: 10000,
  fastestInterval: 5000,
  stationaryRadius: 20,
  stopOnTerminate: false,
  startOnBoot: true
});

Geolocation.startBackgroundTask();

Geolocation.watchPosition(
  (location) => {
    console.log('Location:', location.coords);
  },
  (error) => {
    console.log('Error:', error);
  },
  {
    enableHighAccuracy: true,
    distanceFilter: 10
  }
);

import BackgroundFetch from 'react-native-background-fetch';

const jobConfig = {
  jobId: 'my-background-job',
  interval: 300000, // 5 minutes
  data: { message: 'Hello from background' },
  repeat: true
};

BackgroundFetch.scheduleJob(jobConfig);

import { Notifications } from 'expo-notifications';

Notifications.setNotificationHandler({
  handleNotification: async (notification) => {
    return {
      shouldShowAlert: true,
      shouldPlaySound: true,
      shouldSetBadge: false
    };
  }
});

// Listen for notifications while app is in background
Notifications.addNotificationReceivedListener((notification) => {
  console.log('Background notification received:', notification);
});

Notifications.addNotificationResponseReceivedListener((response) => {
  console.log('User pressed notification:', response);
});

import { AppRegistry } from 'react-native';

const backgroundTask = async (taskData) => {
  // Perform background work here
  console.log('Background task executed:', taskData);
};

AppRegistry.registerHeadlessTask('MyBackgroundTask', () => backgroundTask);

import { NativeModules } from 'react-native';

const triggerBackgroundTask = () => {
  NativeModules.BackgroundTask.runBackgroundTask({
    taskName: 'MyBackgroundTask',
    data: { message: 'Hello from background!' }
  });
};

triggerBackgroundTask();

import { Audio } from 'expo-av';<br><br>Audio.setAudioModeAsync({<br>  androidMode: 'playback',<br>  iosCategory: 'playback',<br>  staysActiveInBackground: true,<br>});

import { AppState } from 'react-native';\n\nconst backgroundTaskId = await BackgroundFetch.scheduleTask({\n  taskId: 'com.example.background-task',\n  delay: 30000,\n  periodic: true,\n});

import { NativeModules } from 'react-native';
import { jest, it, expect } from '@jest/globals';

// Mock the native module
NativeModules.BackgroundTaskManager = {
  startBackgroundTask: jest.fn(),
  stopBackgroundTask: jest.fn(),
};

it('should start and stop background task', () => {
  const taskId = NativeModules.BackgroundTaskManager.startBackgroundTask();
  expect(taskId).toBe(123);
  NativeModules.BackgroundTaskManager.stopBackgroundTask(taskId);
});

import BackgroundFetch from 'react-native-background-fetch';

BackgroundFetch.configure({
  stopOnTerminate: false,
  startOnBoot: true,
  enableHeadless: true,
}, async (taskId) => {
  console.log('[js] Received background-fetch event:', taskId);
  // Perform data sync or other operations here
  await fetch('https://api.example.com/data');
  BackgroundFetch.finish(taskId);
});

import PushNotificationIOS from '@react-native-push-notification/ios';

PushNotificationIOS.addEventListener('notification', (notification) => {
  // Handle notification in background
  const data = notification.getData();
  console.log('Received push notification:', data);
});