cordova-background-geolocation v2.12.0
cordova-background-geolocation · Premium Version
The most sophisticated background location-tracking & geofencing module with battery-conscious motion-detection intelligence for iOS and Android.
The plugin's Philosophy of Operation is to use motion-detection APIs (using accelerometer, gyroscope and magnetometer) to detect when the device is moving and stationary.
When the device is detected to be moving, the plugin will automatically start recording a location according to the configured
distanceFilter
(meters).When the device is detected be stationary, the plugin will automatically turn off location-services to conserve energy.
Also available for React Native, NativeScript and pure native apps.
Contents
:books: API Documentation
- :wrench: Configuration Options
- :zap: Events
- :small_blue_diamond: Methods
Installing the Plugin
Android SDK Setup
Configuring the Plugin
Using the plugin
Debugging
Example
Sample Application
Testing Server
:large_blue_diamond: Installing the plugin
From master (latest, greatest.)
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git
Installing a tagged version.
This plugin has tagged stable versions. To install a particular version, append a version code to the github url prefixed by #
.
$ cordova plugin add <git.url>#2.9.0
:large_blue_diamond: Android SDK
If building from your local machine (as you should be), ensure you have the following items installed or updated in Android SDK Manager
SDK Tools
SDK Platforms
:large_blue_diamond: Configuring the plugin
After adding the plugin, your config.xml
will contain the following block, containing a number of <variable />
for you to configure (eg: LICENSE
):
<widget id="com.your.company.app.id">
<plugin name="cordova-background-geolocation">
<variable name="LICENSE" value="YOUR_LICENSE_KEY" />
<variable name="GOOGLE_API_VERSION" value="11.6.0" />
<variable name="APPCOMPAT_VERSION" value="27.0.0" />
<variable name="LOCATION_ALWAYS_AND_WHEN_IN_USE_USAGE_DESCRIPTION" value="Always use is required for background location tracking" />
<variable name="LOCATION_ALWAYS_USAGE_DESCRIPTION" value="Background location-tracking is required" />
<variable name="LOCATION_WHEN_IN_USE_USAGE_DESCRIPTION" value="Background location-tracking is required" />
<variable name="MOTION_USAGE_DESCRIPTION" value="Using the accelerometer increases battery-efficiency by intelligently toggling location-tracking only when the device is detected to be moving" />
</plugin>
.
.
.
</widget>
To configure these <variable />
, you simply re-add the plugin, providing desired --variable
to the cordova plugin add
command. You can combine multiple --variable
together in one command or execute cordova plugin add
successivly.
$ cordova plugin add <git-url> --variable VARIABLE_NAME=value
$ cordova platform remove android
$ cordova platform add android
:exclamation: To apply changes to these <variable />
, you must remove/re-add the cordova platform(s)
Configuring Multiple variables at Once
Use the \
character followed by ENTER
in console to configure multiple variables with one command:
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git \
--variable LICENSE=your_key_here \
--variable GOOGLE_API_VERSION=11.6.0 \
--variable APPCOMPAT_VERSION=27.0.0 \
--variable MOTION_USAGE_DESCRIPTION="My motion usage description"
$ cordova platform remove android
$ cordova platform add android
$ cordova platform remove ios
$ cordova platform add ios
Or each variable separately
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git --variable MOTION_USAGE_DESCRIPTION="My Motion Usage Description"
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git --variable LOCATION_ALWAYS_AND_WHEN_IN_USE_USAGE_DESCRIPTION="My Usage Description"
$ cordova platform remove ios
$ cordova platform add ios
After editing variables, ALWAYS REMOVE / RE-ADD PLATFORM
$ cordova platform remove android
$ cordova platform add android
$ cordova platform remove ios
$ cordova platform add ios
Configuring your LICENSE key
After generating your Android license-key in the Product Dashboard, Configure the LICENSE
variable:
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git --variable LICENSE=your_key_here
// Remove / re-add the Android platform
$ cordova platform remove android
$ cordova platform add android
Configuring play-services
Version
Many other plugins require Google Play Services and/or Firebase libraries. This is a common source of Android build-failures, since the play-services
library version must be aligned to the same version for all plugins. For example, when one plugin imports version 11.0.1
and another one imports 11.2.0
, a gradle build failure will occur. Use the GOOGLE_API_VERSION
to align the required play-services
version with other plugins.
:warning: The plugin requires a minimum version of 11.2.0
.
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git --variable GOOGLE_API_VERSION=11.2.0
$ cordova platform remove android
$ cordova platform add android
Configuring for useSignificantChangesOnly
For those using useSignificantChangesOnly: true
, possibly because Apple denied your use of the background location
capability, you can disable background location
by providing the BACKGROUND_MODE_LOCATION
<variable />
with an empty-string:
$ cordova plugin add https://github.com/transistorsoft/cordova-background-geolocation.git --variable BACKGROUND_MODE_LOCATION=""
$ cordova platform remove ios
$ cordova platform add ios
Configuration Variables
Android
@variable LICENSE [""]
Your Android license key generated from Product Dashboard
@variable GOOGLE_API_VERSION ["11.6.0"]
Sets the desired version of play-services-location
dependency. Many other plugins require play-services
dependencies, (eg: cordova-plugin-googlemaps
, phonegap-plugin-push
): If the version of play-services
and/or firebase
is not aligned to the same version for ALL plugins, your build will fail.
@variable APPCOMPAT_VERSION ["27.0.0"]
Sets the desired version of com.google.android.appcompat-v7
dependency. Many other plugins can require a different version of appcompat-v7
dependeny: If the version of appcompat-v7
is not aligned to the same version for ALL plugins, your build will fail. BackgroundGeolocation
requires a minimum version of 26.1.0
due to its support for Android 8.
iOS
@variable LOCATION_ALWAYS_AND_WHEN_IN_USE_USAGE_DESCRIPTION ["Background location-tracking is required"]
Customize the message displayed to the user when AlwaysAndWhenInUse
location authorization is requested. This variable is added to your iOS .plist
in the NSLocationAlwaysAndWhenInUseUsageDescription
key.
@variable LOCATION_ALWAYS_USAGE_DESCRIPTION ["Background location-tracking is required"]
(deprecated in iOS 11.0) Customize the message displayed to the user when Always
location authorization is requested. This variable is added to your iOS .plist
in the NSLocationAlwaysUsageDescription
key.
@variable LOCATION_WHEN_IN_USE_USAGE_DESCRIPTION ["Background location-tracking is required"
Customize the message displayed to the user when WhenInUse
location authorization is requested. This variable is added to your iOS .plist
in the NSLocationWhenInUseUsageDescription
key.
@variable MOTION_USAGE_DESCRIPTION ["Using the accelerometer increases battery-efficiency by..."
Customize the message displayed to the user when "Motion & Fitness" permission is requested. The plugin is highly optimized to use iOS CMMotionActivityManager
API for intelligently toggling location-services only when the plugin is detected to be moving.
@variable BACKGROUND_MODE_LOCATION ["<string>location</string>"]
Adds the iOS background-mode location
to your iOS .plist
file. This is the default behaviour. To disable this, (ie: for those using useSignificantChangesOnly
), provide an empty-string:
<variable name="BACKGROUND_MODE_LOCATION" value="" />
:warning: If you do want the default behaviour of background-location updates, simply IGNORE this variable -- Do NOT even provide it. If you do provide it, you must provide the full escaped XML value of <string>location</string>
(the default value when not provided), not just location
.
:large_blue_diamond: Using the Plugin
The plugin creates the object window.BackgroundGeolocation
. See API Documentation for details
Ionic 2 and Typescript
platform.ready().then(() => {
let bgGeo = (<any>window).BackgroundGeolocation;
});
Initialize the Plugin
There are three simple steps to using BackgroundGeolocation
:
- Listen to events
- Execute
#ready
method #start
the plugin
// 1. Listen to events
bgGeo.on('location', onLocation, onLocationFailure);
bgGeo.on('motionchange', onMotionChange);
bgGeo.on('providerchange', onProviderChange);
// 2. Execute #ready method:
bgGeo.ready({
desiredAccuracy: 0, // <-- Config params
distanceFilter: 50,
debug: true,
logLevel: bgGeo.LOG_LEVEL_VERBOSE
}, function(state) { // <-- Current state provided to #configure callback
// 3. Start tracking
console.log('BackgroundGeolocation is configured and ready to use');
if (!state.enabled) {
bgGeo.start(function() {
console.log('- BackgroundGeolocation tracking started');
});
}
});
// NOTE: Do NOT execute any API methods which will access location-services
// until the callback to #ready executes!
//
// For example, DO NOT do this here:
//
// bgGeo.getCurrentPosition(); // <-- NO!
// bgGeo.start(); // <-- NO!
:information_source: NOTE: The configuration {}
provided to the #ready
method is applied only when your app is first booted — for every launch thereafter, the plugin will automatically load the last known configuration from persistant storage. If you wish to force the #ready
method to always apply the supplied config {}
, you can specify reset: true
bgGeo.ready({
reset: true, // <-- true to always apply the supplied config
distanceFilter: 10
}, function(state) {
console.log('- BackgroundGeolocation is ready: ', state);
});
:warning: Do not execute any API method which will require accessing location-services until the callback to *`#readyexecutes (eg:
#getCurrentPosition,
#watchPosition,
#start`).
Promise API
The BackgroundGeolocation
Javascript API supports Promises for nearly every method (the exceptions are #watchPosition
and adding event-listeners via #on
method. For more information, see the API Documentation
// Traditional API still works:
bgGeo.ready({desiredAccuracy: 0, distanceFilter: 50}).then(state => {
console.log('- BackgroundGeolocation is ready: ', state);
}).catch(error => {
console.log('- BackgroundGeolocation error: ', error);
});
:large_blue_diamond: Example
See here for an Ionic 3 example.
////
// As with all Cordova plugins, you must configure within an #deviceready callback.
//
function onDeviceReady() {
// Get a reference to the plugin.
var bgGeo = window.BackgroundGeolocation;
//This callback will be executed every time a geolocation is recorded in the background.
var callbackFn = function(location, taskId) {
var coords = location.coords;
var lat = coords.latitude;
var lng = coords.longitude;
console.log('- Location: ', JSON.stringify(location));
// Must signal completion of your callbackFn.
bgGeo.finish(taskId);
};
// This callback will be executed if a location-error occurs. Eg: this will be called if user disables location-services.
var failureFn = function(errorCode) {
console.warn('- BackgroundGeoLocation error: ', errorCode);
}
// Listen to location events & errors.
bgGeo.on('location', callbackFn, failureFn);
// Fired whenever state changes from moving->stationary or vice-versa.
bgGeo.on('motionchange', function(isMoving) {
console.log('- onMotionChange: ', isMoving);
});
// Fired whenever a geofence transition occurs.
bgGeo.on('geofence', function(geofence) {
console.log('- onGeofence: ', geofence.identifier, geofence.location);
});
// Fired whenever an HTTP response is received from your server.
bgGeo.on('http', function(response) {
console.log('http success: ', response.responseText);
}, function(response) {
console.log('http failure: ', response.status);
});
// BackgroundGeoLocation is highly configurable.
bgGeo.ready({
// Geolocation config
desiredAccuracy: 0,
distanceFilter: 10,
// Activity Recognition config
activityRecognitionInterval: 10000,
stopTimeout: 5,
// Application config
stopOnTerminate: false,
startOnBoot: true,
// HTTP / SQLite config
url: "http://your.server.com/locations",
method: "POST",
autoSync: true,
maxDaysToPersist: 3,
headers: { // <-- Optional HTTP headers
"X-FOO": "bar"
},
params: { // <-- Optional HTTP params
"auth_token": "maybe_your_server_authenticates_via_token_YES?"
}
// Logging and Debug
debug: true, // <-- Debug sounds & notifications.
logLevel: bgGeo.LOG_LEVEL_VERBOSE,
logMaxDays: 3 // <-- 3 days of logs
}, function(state) {
// This callback is executed when the plugin is ready to use.
console.log("BackgroundGeolocation ready: ", state);
if (!state.enabled) {
bgGeo.start();
}
});
// The plugin is typically toggled with some button on your UI.
function onToggleEnabled(value) {
if (value) {
bgGeo.start();
} else {
bgGeo.stop();
}
}
}
:large_blue_diamond: Advanced Sample Application
A fully-featured SampleApp is available in its own public repo. After first cloning that repo, follow the installation instructions in the README there. This SampleApp includes a settings-screen allowing you to quickly experiment with all the different settings available for each platform.
If you're using XCode, boot the SampleApp in the iOS Simulator and enable Debug->Location->Freeway Drive
.
:large_blue_diamond: Simple Testing Server
A simple Node-based web-application with SQLite database is available for field-testing and performance analysis. If you're familiar with Node, you can have this server up-and-running in about one minute.
Licence
cordova-background-geolocation
Copyright (c) 2018, Transistor Software (9224-2932 Quebec Inc)
All rights reserved.
sales@transistorsoft.com
http://transistorsoft.com
Preamble: This Agreement governs the relationship between YOU OR THE ORGANIZATION ON WHOSE BEHALF YOU ARE ENTERING INTO THIS AGREEMENT (hereinafter: Licensee) and Transistor Software, a LICENSOR AFFILIATION whose principal place of business is Montreal, Quebec, Canada (Hereinafter: Licensor). This Agreement sets the terms, rights, restrictions and obligations on using {software} (hereinafter: The Software) created and owned by Licensor, as detailed herein
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7 years ago