background-location-update

background-location-update

A Capacitor plugin which lets you receive location updates even while the app is backgrounded.

Install

npm install background-location-update
npx cap sync

Usage

import { BackgroundLocation, Location } from 'background-location-update';

iOS

Add the following keys to Info.plist.:

<dict>
  ...
  <key>NSLocationWhenInUseUsageDescription</key>
  <string>We need to track your location</string>
  <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
  <string>We need to track your location while your device is locked.</string>
  <key>UIBackgroundModes</key>
  <array>
    <string>location</string>
  </array>
  ...
</dict>

Android

Configure AndroidManifest.xml:

<manifest>
    <application>
        <service
            android:name="com.viewtrak.plugins.backgroundlocation.BackgroundLoctionService"
            android:enabled="true"
            android:exported="true"
            android:foregroundServiceType="location" />
    </application>

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-feature android:name="android.hardware.location.gps" />
</manifest>

Configration specific to Android can be made in strings.xml:

<resources>
    <!--
        The channel name for the background notification. This will be visible
        when the user presses & holds the notification. It defaults to
        "Background Tracking".
    -->
    <string name="capacitor_background_location_notification_channel_name">
        Background Tracking
    </string>

    <!--
        The icon to use for the background notification. Note the absence of a
        leading "@". It defaults to "mipmap/ic_launcher", the app's launch icon.

        If a raster image is used to generate the icon (as opposed to a vector
        image), it must have a transparent background. To make sure your image
        is compatible, select "Notification Icons" as the Icon Type when
        creating the image asset in Android Studio.
    -->
    <string name="capacitor_background_location_notification_icon">
        drawable/ic_tracking
    </string>
</resources>

API

• addWatcher(...)
• removeWatcher(...)
• openSettings()
• addListener('onlineNotificationAction', ...)
• Interfaces

addWatcher(...)

addWatcher(options: WatcherOptions, callback: (position?: Location | undefined, error?: CallbackError | undefined) => void) => Promise<string>

Param	Type
options	WatcherOptions
callback	(position?: Location, error?: CallbackError) => void

Returns: Promise<string>

---

removeWatcher(...)

removeWatcher(options: { id: string; }) => Promise<void>

Param	Type
options	{ id: string; }

---

openSettings()

openSettings() => Promise<void>

---

addListener('onlineNotificationAction', ...)

addListener(eventName: 'onlineNotificationAction', listenerFunc: (data: { isOnline: boolean; }) => void) => Promise<PluginListenerHandle> & PluginListenerHandle

Called when onlineNotificationAction set to true in addWatcher() and result received

Provides onlineNotificationAction result.

Param	Type
eventName	'onlineNotificationAction'
listenerFunc	(data: { isOnline: boolean; }) => void

Returns: Promise<PluginListenerHandle> & PluginListenerHandle

Since: 2.0.2

---

Interfaces

WatcherOptions

Prop	Type
backgroundMessage	string
backgroundTitle	string
requestPermissions	boolean
stale	boolean
distanceFilter	number
onlineNotificationAction	boolean
isOnline	boolean
actionOnline	string
actionOffline	string

Location

Prop	Type
latitude	number
longitude	number
accuracy	number
altitude	number | null
altitudeAccuracy	number | null
simulated	boolean
bearing	number | null
speed	number | null
time	number | null

CallbackError

Prop	Type
code	string

PluginListenerHandle

Prop	Type
remove	() => Promise<void>