JSB Location

1. Introduction
2. Installation Guide
3. API Reference
4. Configuration and Description
5. Questions or Issues
6. Licensing and Terms

1. Introduction

JSSDK enables communication between HUAWEI Location Kit and React Native, Cordova and Ionic platforms. This plugin exposes all capabilities provided by HUAWEI Location Kit. Detailed information about data types, constants and methods provided by this document.

2. Installation Guide

Creating a Project in AppGallery Connect

Creating an app in AppGallery Connect is required in order to communicate with the Huawei services. To create an app, perform the following steps:

Step 1. Sign in to AppGallery Connect and select My projects.

Step 2. Select your project from the project list or create a new one by clicking the Add Project button.

Step 3. Go to Project Setting > General information, and click Add app. If an app exists in the project and you need to add a new one, expand the app selection area on the top of the page and click Add app.

Step 4. On the Add app page, enter the app information, and click OK.

A signing certificate fingerprint is used to verify the authenticity of an app when it attempts to access an HMS Core service through the HMS Core SDK. Before using HMS Core (APK), you must locally generate a signing certificate fingerprint and configure it in AppGallery Connect. Ensure that the JDK has been installed on your computer.

Configuring the Signing Certificate Fingerprint

Step 1. Obtain the signature file that generated in Generating a Signing Certificate section.

Step 2. Go to Project Setting > General information. In the App information field, click the icon next to SHA-256 certificate fingerprint, and enter the obtained SHA256 certificate fingerprint.

Step 3. After completing the configuration, click check mark.

React-Native Integration

Step 1: Sign in to AppGallery Connect and select My projects.

Step 2: Find your app project, and click the desired app name.

Step 3: Go to Project Setting > General information. In the App information section, click agconnect-service.json to download the configuration file.

Step 4: Create a React Native project if you do not have one.

Step 5: Copy the agconnect-service.json file to the android/app directory of your React Native project.

Step 6: Copy the signature file that generated in Generating a Signing Certificate section, to the android/app directory of your React Native project.

Step 7: Check whether the agconnect-services.json file and signature file are successfully added to the android/app directory of the React Native project.

Step 8: Open the AndroidManifest.xml file, add the following lines, and replace the value <app_id> with the value you found in the agconnect-services.json file.

<application>
...
     <meta-data
            android:name="com.huawei.hms.client.appid"
            android:value="appid=<app_id>" />
</application>

Step 9: Open the build.gradle file in the android directory of your React Native project.

Go to buildscript then configure the Maven repository address and agconnect plugin for the HMS SDK.

buildscript {    
  repositories {        
    google()        
    jcenter()        
    maven { url 'https://developer.huawei.com/repo/' }   
  }    

  dependencies {        
    /*          
      * <Other dependencies>        
      */   
    classpath 'com.huawei.agconnect:agcp:1.4.2.301'    
  }
}

Go to allprojects then configure the Maven repository address for the HMS SDK.

allprojects {
  repositories {
    /*          
      * <Other repositories>        
      */  
    maven { url 'https://developer.huawei.com/repo/' }
  }
}

Step 10: Open the build.gradle file in the android/app directory of your React Native project.

Package name must match with the package_name entry in agconnect-services.json file.

defaultConfig {
  applicationId "<package_name>"
  minSdkVersion 19
  /*
   * <Other configurations>
   */
}

android {
  /*
   * <Other configurations>
   */

  signingConfigs {
    config {
      storeFile file('<keystore_file>.jks')
      storePassword '<keystore_password>'
      keyAlias '<key_alias>'
      keyPassword '<key_password>'
    }
  }

  buildTypes {
    debug {
      signingConfig signingConfigs.config
    }
    release {
      signingConfig signingConfigs.config
      minifyEnabled enableProguardInReleaseBuilds
      ...
    }
  }
}

Step 11: Open the build.gradle file in the android/app directory of your React Native project.

Configure build dependencies.

buildscript {
  ...
  dependencies {
    /*
    * <Other dependencies>
    */
    implementation ('com.huawei.hms:rn-adapter:5.2.0.300'){
        exclude group: 'com.facebook.react'
    } 
    ...    
  }
}

Step 12: Import the following class to the MainApplication.java file of your project.

import com.huawei.hms.jsb.adapter.rn.RnJSBReactPackage;

Then, add the RnJSBReactPackage() to your getPackages method. In the end, your file will be similar to the following:

@Override
protected List<ReactPackage> getPackages() {
    List<ReactPackage> packages = new PackageList(this).getPackages();
    packages.add(new RnJSBReactPackage()); // <-- Add this line 
    return packages;
}
...

Step 13: Download js-sdk using command below.

npm i @hmscore/hms-js-location

Step 14: Import HMSLocation in App.js as following line.

import HMSLocation from "@hmscore/hms-js-location";

Step 15: Don't forget to add init function before calling HMSLocation functions.

HMSLocation.init(NativeModules, DeviceEventEmitter);

Step 16: Run your project.

Run the following command to the project directory.

react-native run-android

Cordova Integration

Step 1: Install Cordova CLI if haven't done before.

npm install -g cordova

Step 2: Create a new Cordova project or use the existing one.

To create new Cordova project, you can use cordova create path [id [name [config]]] [options] command. For more details please follow CLI Reference - Apache Cordova.

Step 3: Update the widget id property which is specified in the config.xml file. It must be same with package_name value of the agconnect-services.json file.

Step 4: Add the Android platform to the project if haven't done before.

cordova platform add android

Step 5: Download plugin using command below.

cordova plugin add @hmscore/hms-js-location

Step 6: Copy agconnect-services.json file to <project_root>/platforms/android/app directory.

Step 7: Add keystore(.jks) and build.json files to your project's root directory.

You can refer to 3rd and 4th steps of Generating a Signing Certificate Codelab tutorial page for generating keystore file.

Fill build.json file according to your keystore information. For example:

{
    "android": {
        "debug": {
            "keystore": "<keystore_file>.jks",
            "storePassword": "<keystore_password>",
            "alias": "<key_alias>",
            "password": "<key_password>"
        },
        "release": {
            "keystore": "<keystore_file>.jks",
            "storePassword": "<keystore_password>",
            "alias": "<key_alias>",
            "password": "<key_password>"
        }
    }
}

Step 8: Import the following class to the MainActivity.java file of your project. You can find this file in platforms/android/app/src/main/java/<your_package_name> directory.

import com.huawei.hms.jsb.adapter.cordova.CordovaJSBInit;

Step 9: In the same file, add CordovaJSBInit.initJSBFramework(this) line after the super.onCreate(savedInstanceState) method call.

In the end, your file will be similar to the following:

...

import com.huawei.hms.jsb.adapter.cordova.CordovaJSBInit;

public class MainActivity extends CordovaActivity
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        CordovaJSBInit.initJSBFramework(this);

        ...
    }
    ...
}

Step 10: Open the AndroidManifest.xml file, add the following lines, and replace the value <app_id> with the app_id value that can be found in the agconnect-services.json file.

<application>
...
     <meta-data
            android:name="com.huawei.hms.client.appid"
            android:value="appid=<app_id>" />
</application>

Step 11: Run the app

cordova run android

Ionic Integration

Install Ionic CLI and other required tools if haven't done before.

npm install -g @ionic/cli cordova-res native-run

Ionic with Cordova Runtime

Step 1: Enable the Cordova integration if haven't done before.

ionic integrations enable cordova

Step 2: Update the widget id property which is specified in the config.xml file. It must be same with package_name value of the agconnect-services.json file.

Step 3: Add the Android platform to the project if haven't done before.

ionic cordova platform add android

Step 4: Install HMS Location Plugin to the project.

ionic cordova plugin add @hmscore/hms-js-location

Step 5: Copy agconnect-services.json file to <project_root>/platforms/android/app directory.

Step 6: Add keystore(.jks) and build.json files to your project's root directory.

You can refer to 3rd and 4th steps of Generating a Signing Certificate Codelab tutorial page for generating keystore file.

Fill build.json file according to your keystore information. For example:

{
    "android": {
        "debug": {
            "keystore": "<keystore_file>.jks",
            "storePassword": "<keystore_password>",
            "alias": "<key_alias>",
            "password": "<key_password>"
        },
        "release": {
            "keystore": "<keystore_file>.jks",
            "storePassword": "<keystore_password>",
            "alias": "<key_alias>",
            "password": "<key_password>"
        }
    }
}

Step 7: Import the following class to the MainActivity.java file of your project. You can find this file in platforms/android/app/src/main/java/<your_package_name> directory.

import com.huawei.hms.jsb.adapter.cordova.CordovaJSBInit;

Step 8: In the same file, add CordovaJSBInit.initJSBFramework(this) line after the super.onCreate(savedInstanceState) method call.

In the end, your file will be similar to the following:

...

import com.huawei.hms.jsb.adapter.cordova.CordovaJSBInit;

public class MainActivity extends CordovaActivity
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        CordovaJSBInit.initJSBFramework(this);

        ...
    }
    ...
}

Step 9: Open the AndroidManifest.xml file, add the following lines, and replace the value <app_id> with the app_id value that can be found in the agconnect-services.json file.

<application>
...
     <meta-data
            android:name="com.huawei.hms.client.appid"
            android:value="appid=<app_id>" />
</application>

Step 10: Run the application.

ionic cordova run android --device

Ionic with Capacitor Runtime

Step 1: Enable the Capacitor integration if haven't done before.

ionic integrations enable capacitor

Step 2: Initialize Capacitor if haven't done before. It must be same with package_name value of the agconnect-services.json file.

npx cap init [appName] [appId]

For more details please follow Initialize Capacitor with your app information.

Step 3: Install HMS Location plugin to the project.

npm install @hmscore/hms-js-location

Step 4: Build Ionic app to generate resource files.

ionic build

Step 5: Add the Android platform to the project.

npx cap add android

Step 6: Copy keystore(.jks) and agconnect-services.json files to <project_root>/android/app directory.

You can refer to 3rd and 4th steps of Generating a Signing Certificate Codelab tutorial page for generating keystore file.

Step 7: Open the build.gradle file in the <project_root>/android/app directory.

Add signingConfigs entry to the android section and modify it according to your keystore.
Enable signingConfig configuration for debug and release flavors.

...

android {

    ...

    // Modify signingConfigs according to your keystore
    signingConfigs {
        config {
            storeFile file('<keystore_file>.jks')
            storePassword '<keystore_password>'
            keyAlias '<key_alias>'
            keyPassword '<key_password>'
        }
    }
    buildTypes {
        debug {
            signingConfig signingConfigs.config // Enable signingConfig for debug flavor
        }
        release {
            signingConfig signingConfigs.config // Enable signingConfig for release flavor
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
...

apply plugin: 'com.huawei.agconnect' // Apply com.huawei.agconnect plugin. This line must be added to the end of the file.

Step 8: Open the build.gradle file in the <project_root>/android directory. Add Huawei's maven repositories and agconnect classpath to the file.

buildscript {
    repositories {
        /*
            <Other repositories>
        */
        maven { url 'https://developer.huawei.com/repo/' }
    }
    dependencies {
        /*
            <Other dependencies>
        */
        classpath 'com.huawei.agconnect:agcp:1.4.2.301'
    }
}

/*
    <Other build.gradle entries>
*/

allprojects {
    repositories {
        /*
            <Other repositories>
        */
        maven { url 'https://developer.huawei.com/repo/' }
    }
}

Step 9: Import the following class to the MainActivity.java file of your project. You can find this file in android/app/src/main/java/<your_package_name> directory.

import com.huawei.hms.js.location.HMSLocation;

Step 10: In the same file, add add(HMSLocation.class); line to the ArrayList.

In the end, your file will be similar to the following:

...

import com.huawei.hms.js.location.HMSLocation;

public class MainActivity extends BridgeActivity
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        // Initializes the Bridge
        this.init(savedInstanceState, new ArrayList<Class<? extends Plugin>>() {{
            // Additional plugins you've installed go here
            add(HMSLocation.class);
        }});
        ...
    }
    ...
}

Step 11: Open the AndroidManifest.xml file, add the following lines, and replace the value <app_id> with the app_id value that can be found in the agconnect-services.json file.

<application>
...
     <meta-data
            android:name="com.huawei.hms.client.appid"
            android:value="appid=<app_id>" />
</application>

Step 12: Updates dependencies, and copy any web assets to your project.

npx cap sync

Step 13: Open the project in Android Studio and run it.

npx cap open android

Configure Permissions

Navigate to android/app/main/AndroidManifest.xml file and get required permissions.

    <!-- For accessing Internet -->
    <uses-permission android:name="android.permission.INTERNET" />

    <!-- The Android OS provides two location permissions: ACCESS_COARSE_LOCATION (approximate location permission) and ACCESS_FINE_LOCATION (precise location permission). -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

    <!-- If your app needs to continuously locate the device when it runs in the background in Android Q, apply for the ACCESS_BACKGROUND_LOCATION permission -->
    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>

    <!-- To use the activity identification service in Android Q and later versions, apply for the following permission -->
    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" /> 

    <!-- To use the activity identification service in versions earlier than Android Q, apply for the following permission -->
    <uses-permission android:name="com.huawei.hms.permission.ACTIVITY_RECOGNITION" />

    <!-- To use the mock location function -->
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />

3. API Reference

HMSLocation

Public Method Summary

Method	Return Type	Description
getFusedLocationProviderClient()	`FusedLocationService`	Creates a FusedLocationProviderClient instance.

3.1.2 Public Methods

Public Methods

getFusedLocationProviderClient()

Creates a FusedLocationProviderClient instance.

Return Type

Type	Description
`FusedLocationService`	Main entry class for obtaining the location information.

Sample Code

const fusedLocationClient = HMSLocation.getFusedLocationProviderClient();

FusedLocationService

Fused location class, which is used for interaction during location.

Public Method Summary

Method	Return Type	Description
checkLocationSettings(locationSettingsRequest)	`Promise<LocationSettingsResult>`	Checks whether relevant location settings are valid.
getLastLocation(lastLocationRequest)	`Promise<LocationResult>`	Obtains the available location of the last request.
getLocationAvailability()	`Promise<LocationAvailabilityResult>`	Obtains the location availability.
getNavigationContextState(type)	`Promise<NavigationResult>`	Obtains the requested navigation type.
removeLocationUpdates(uuid)	`Promise<void>`	Removes location updates of the specified request code.
requestLocationUpdates(locationUpdateRequest, callback)	`Promise<void>`	Requests location updates.
requestLocationUpdatesEx(locationUpdateRequest, callback)	`Promise<void>`	Requests location updates. This is an extended location service API that supports high-precision location and is compatible with common location APIs. This function will take updates only during app is running.
setMockLocation(mockLocation)	`Promise<void>`	Sets a specific mock location. You must call the setMockMode(boolean) method and set the flag to true before calling this method.
setMockMode(isMockMode)	`Promise<void>`	Sets whether to use the location mock mode. If the value true is passed, the GNSS or network location is not used and the location set through setMockLocation(Location) is directly returned.

Public Methods

checkLocationSettings(locationSettingsRequest)

Checks whether relevant location settings are valid.

Parameters

Name	Type	Description
locationSettingsRequest	LocationSettingsRequest	Request object related to location settings.

Return Type

Type	Description
`Promise<LocationSettingsResult>`	Location setting status.

Sample Code

HMSLocation.getFusedLocationProviderClient().checkLocationSettings({
    requests : [
        {
            priority:HMSLocation.PriorityConstants.PRIORITY_HIGH_ACCURACY,
            interval:10000,
            numUpdates:2147483647,
            fastestInterval:10000,
            expirationTime:3372036854775807.0,
            expirationTimeDuration: 3372036854775807.0,
            isFastestInvervalExplicitlySet : false,
            smallestDisplacement:0.0,
            maxWaitTime:0,
            needAddress:false,
            language:'',
            countryCode:'',
         },
         ...
    ],
    alwaysShow : false,
    needBle : false
})
    .then((res) => { console.log(res) })
    .catch((err) => { console.log(err) });

getLastLocation()

Obtains the available location of the last request. Instead of proactively requesting a location, this method uses the location cached during the last request. The value null may be returned to the following scenarios:

The location function has never been used.
The location function is disabled.
The device is restored to factory settings. If real-time location is required, you are advised to proactively call requestLocationUpdates instead of getLastLocation. To receive a location once only, you can set numUpdates in LocationRequest to 1.

Parameters

Name	Type	Description
lastLocationRequest	LastLocationRequest	Request object related to location settings.

Return Type

Type	Description
`Promise<LocationResult>`	Location result object.

Sample Code

HMSLocation.getFusedLocationProviderClient().getLastLocation({
    needAddress : true,
    language : "tr",
    countryCode : "TR"
})
    .then((res) => { console.log(res) })
    .catch((err) => { console.log(err) });

getLocationAvailability()

Obtains the location availability.

Return Type

Type	Description
`Promise<LocationAvailabilityResult>`	Location availability result object.

Sample Code

HMSLocation.getFusedLocationProviderClient().getLocationAvailability()
    .then((res) => { console.log(res) })
    .catch((err) => { console.log(err) });

getNavigationContextState(type)

Obtains the requested navigation type.

Parameters

Name	Type	Description
type	HMSLocation.NavigationRequestConstants	An enum value indicated navigation request type.

Return Type

Type	Description
`Promise<NavigationResult>`	Navigation result object.

Sample Code

HMSLocation.getFusedLocationProviderClient().getNavigationContextState(HMSLocation.NavigationRequestConstants.OVERPASS)
    .then((res) => { console.log(res) })    
    .catch((err) => { console.log(err) });

removeLocationUpdates(uuid)

Removes location updates of the specified request code.

Parameters

Name	Type	Description
uuid	string	Uuid used in requestLocationUpdates() or requestLocationUpdatesEx().

Return Type

Type	Description
`Promise<void>`

Sample Code

HMSLocation.getFusedLocationProviderClient().removeLocationUpdates('2fc66152-d0bb-4faa-922a-1224f59b6976')
    .then((res) =>{ console.log(res) })
    .catch((err) => { console.log(err) });

requestLocationUpdates(locationUpdateRequest, callback)

Requests location updates.

Parameters

Name	Type	Description
locationUpdateRequest	LocationUpdateRequest	An object that contains location update request.
callback	function	A callback function which will be called when location update is occurred.

Return Type

Type	Description
`Promise<void>`

Sample Code

HMSLocation.getFusedLocationProviderClient().requestLocationUpdates({
    locationRequest : {
        priority:HMSLocation.PriorityConstants.PRIORITY_HIGH_ACCURACY,
        interval:10000,
        numUpdates:2147483647,
        fastestInterval:10000,
        expirationTime:3372036854775807.0,
        expirationTimeDuration: 3372036854775807.0,
        isFastestInvervalExplicitlySet : false,
        smallestDisplacement:0.0,
        maxWaitTime:0,
        needAddress:false,
        language:'',
        countryCode:'',
    },
    uuid : '2fc66152-d0bb-4faa-922a-1224f59b6976',
  },
  (result) => {console.log(JSON.stringify(result))}
)
    .then((res) =>{ console.log(res) })    
    .catch((err) => { console.log(err) });

requestLocationUpdatesEx(locationUpdateRequest, callback)

Requests location updates. This is an extended location service API that supports high-precision location and is compatible with common location APIs. This function will take updates only during the app is running.

Parameters

Name	Type	Description
locationUpdateRequest	LocationUpdateRequest	LocationUpdateRequest object.
callback	function	A callback function which will be called when location update is occurred.

Return Type

Type	Description
`Promise<void>`

Sample Code

HMSLocation.getFusedLocationProviderClient().requestLocationUpdatesEx({
    locationRequest : {
        priority:HMSLocation.PriorityConstants.PRIORITY_HD_ACCURACY,
        interval:10000,
        numUpdates:2147483647,
        fastestInterval:10000,
        expirationTime:3372036854775807.0,
        expirationTimeDuration: 3372036854775807.0,
        isFastestInvervalExplicitlySet : false,
        smallestDisplacement:0.0,
        maxWaitTime:0,
        needAddress:false,
        language:'',
        countryCode:'',
    },
    uuid : '2fc66152-d0bb-4faa-922a-1224f59b6976',
  },
  (result) => {console.log(JSON.stringify(result))}
)
    .then((res) =>{ console.log(res) })    
    .catch((err) => { console.log(err) });

setMockLocation(mockLocation)

Sets a specific mock location. You must call the setMockMode(true) function before calling this.

Parameters

Name	Type	Description
mockLocation	MockLocation	Location object.

Return Type

Type	Description
`Promise<void>`	Empty Promise.

Sample Code

HMSLocation.getFusedLocationProviderClient().setMockLocation(
   {
        mLatitude : 40.59400,
        mLongitude : 29.02918
   }
)
    .then((res) =>{ console.log(res) })
    .catch((err) => { console.log(err) });

setMockMode(isMockMode)

Sets whether to use the location mock mode. If the value true is passed, the GNSS or network location is not used and the location set through setMockLocation(Location) is directly returned.

Parameters

Name	Type	Description
isMockMode	boolean	If this parameter is set to true, the mock mode will be used. If this parameter is set to false, the mock mode will not be used.

Return Type

Type	Description
`Promise<void>`	-

Sample Code

HMSLocation.getFusedLocationProviderClient().setMockMode(true)
    .then((res) =>{ console.log(res) })    
    .catch((err) => { console.log(err) });
}

Data Types

LastLocationRequest

An object that contains last location request.

Field	Type	Description
needAddress	`boolean`	Result contains address information if this field is true.
language	`string`	Language code.
countryCode	`string`	Country code.

LocationResult

An object that contains location and address result.

Field	Type	Description
location	`Location`	An object that contains location information.
address	`Address`	An object that contains address information.

Location

An object that contains location information.

Field	Type	Description
mLatitude	`number`	Latitude of the current location.
mLongitude	`number`	Longitude of the current location.
mAltitude	`number`	Altitude of the current location.
mSpeed	`number`	Device speed at the current location, in meters per second.
mBearing	`number`	Device bearing at the current location, in degrees.
mAccuracy	`number`	Horizontal location accuracy, in meters.
mTime	`number`	Current timestamp, in milliseconds.
mProvider	`boolean`	Location method, for example, network location, GNSS, Wi-Fi, and Bluetooth.
mElapsedRealtimeNanos	`number`	Time elapsed since system boot, in nanoseconds.
mHorizontalAccuracyMeters	`number`	Horizontal location accuracy, in meters.
mVerticalAccuracyMeters	`number`	Vertical location accuracy, in meters.
mBearingAccuracyDegrees	`number`	Bearing accuracy at the current location, in degrees.
mSpeedAccuracyMetersPerSecond	`number`	Speed accuracy at the current location, in meters per second.

Address

An object that contains address information for location.

Field	Type	Description
mCountryName	`string`	Country name.
mCountryCode	`string`	Country code.
mState	`string`	Administrative region.
mCounty	`string`	County that location belongs.
mCity	`string`	City name.
mStreet	`string`	Street name.
mFeatureName	`string`	Feature building of the current location.
mPostalCode	`string`	Postal code of the current location.
mPhone	`string`	Phone number of the feature building (such as a store or company) of the current location.
mUrl	`string`	Website of the feature building (such as a store or company) of the current location.
mExtraInfo	`object`	Additional information, which is a key-value pair.

LocationSettingsRequest

An object that contains checking location settings configuration.

Field	Type	Description
requests	`LocationRequest[]`	List of LocationRequest objects
needBle	`boolean`	Indicates whether BLE scanning needs to be enabled. The options are true (yes) and false (no).
alwaysShow	`boolean`	Indicates whether a location is required for the app to continue. The options are true (yes) and false (no).

LocationRequest

An object that contains required information for location request.

Field	Type	Description
priority	`HMSLocation.PriorityConstants`	The request priority. If the GNSS location is requested, set priority to 100. If the network location is requested, set priority to 102 or 104. If the location only needs to be passively received instead of being proactively requested, set priority to 105. If high-precision location is requested, set the priority to 200.
interval	`number`	The interval for requesting location updates. If the value is 50000, the app will receive a location update every 50 seconds.
numUpdates	`number`	The number of location updates. If the value is 3, the app will receive three location updates.
fastestInterval	`number`	The shortest interval for requesting location updates. The values of Interval and FastestInterval, whichever is smaller, will be used for requesting location updates.
isFastestIntervalExplicitlySet	`boolean`	True if the shortest request interval is used; false otherwise.
expirationTime	`number`	The request expiration time since boot, in milliseconds. You can use the SystemClock.elapsedRealtime() method to obtain the number of milliseconds elapsed from the boot time to the current time. If the location update needs to be stopped 200 seconds later, the request expiration time should equal the return result of SystemClock.elapsedRealtime() plus 200000.
expirationTimeDuration	`number`	The request expiration duration. Different from expirationTime, the ExpirationDuration parameter is irrelevant to the boot time. If the location update needs to be stopped 200 seconds later, the request expiration duration should be 200000.
smallestDisplacement	`number`	The smallest displacement for location updates. If the displacement between two locations is greater than or equal to the specified parameter value, a location update will be sent to the app.
maxWaitTime	`number`	The maximum waiting time for location updates, in milliseconds.When the setting takes effect, the time specified by maxWaitTime will be used as the location update period. After the location update time is reached, locations in the period will be returned to the app at a time.
needAddress	`boolean`	Indicates to return the address information.
language	`string`	The language.
countryCode	`string`	The country/region code.

LocationSettingsResult

An object that contains location setting result.

Field	Type	Description
locationSettingsStates	`LocationSettingsStates`	Current location-related setting status.
statusCheck	`StatusCheck`	Status of the executed function.

StatusCheck

An object that contains status information.

Field	Type	Description
statusCode	`number`	Status code.

LocationSettingsStates

An object that contains location settings states.

Field	Type	Description
blePresent	`boolean`	Indicates whether the Bluetooth function is available.
bleUsable	`boolean`	Indicates whether the Bluetooth function is enabled.
gpsPresent	`boolean`	Indicates whether the GPS service is available.
gpsUsable	`boolean`	Indicates whether the GPS service is enabled.
gnssPresent	`boolean`	Indicates whether the GNSS function is available.
gnssUsable	`boolean`	Indicates whether the GNSS function is enabled.
locationPresent	`boolean`	Indicates whether HMS Core (APK) has the location permission.
locationUsable	`boolean`	Indicates whether the location permission has been assigned to HMS Core (APK).
networkLocationPresent	`boolean`	Indicates whether the network location function is available.
networkLocationUsable	`boolean`	Indicates whether the network location function is enabled.
hmsLocationPresent	`boolean`	Indicates whether HMS Core (APK) has the location permission.
hmsLocationUsable	`boolean`	Indicates whether the location permission has been assigned to HMS Core (APK).

LocationAvailabilityResult

An object that contains location availability result.

Field	Type	Description
locationAvailability	`LocationAvailability`	Device location availability.

LocationAvailability

An object that contains location availability status codes.

Field	Type	Description
locationStatus	`number`	Device location status.
cellStatus	`number`	Device mobile cell status.
elapsedRealtimeNs	`number`	Elapsed real time.
wifiStatus	`number`	Device wifi status.

NavigationResult

Field	Type	Description
environment	`number`	Environment information.
confidence	`number`	Confidence of the status information. The value ranges from 0 to 100. A larger value indicates more reliable result authenticity.

LocationUpdateResultValue

An object that contains location update result.

Field	Type	Description
value	`LocationUpdateResultContainer`	An object that contains location update results.

MockLocation

An object that contains mock location settings.

Field	Type	Description
mLatitude	`number`	Latitude value of location.
mLongitude	`number`	Longitude value of location.

LocationUpdateRequest

An object that contains location update settings.

Field	Type	Description
locationRequest	`LocationRequest`	Location settings request
uuid	`string`	Uuid

LocationUpdateResultContainer

An object that contains location update result.

Field	Type	Description
locationResult	`LocationUpdateResult`	An object that contains location update results.

LocationUpdateResult

An object that contains location update result.

Field	Type	Description
locations	`LocationResult[]`	An object that contains location update results.

Constants

PriorityConstants

Field	Value	Description
PRIORITY_HIGH_ACCURACY	100	Used to request the most accurate location.
PRIORITY_BALANCED_POWER_ACCURACY	102	Used to request the block-level location.
PRIORITY_LOW_POWER	104	Used to request the city-level location.
PRIORITY_NO_POWER	105	Used to request the location with the optimal accuracy without additional power consumption.
PRIORITY_HD_ACCURACY	200	Used to request the high-precision location information. Currently, this parameter is available only for the requestLocationUpdatesEx method.

NavigationRequestConstants

Field	Value	Description
OVERPASS	1	Used to request the device navigation status.
IS_SUPPORT_EX	2	Used to check whether the device supports high-precision location.

4. Configuration and Description

Configuring Obfuscation Scripts

React Native

In order to prevent error while release build, you may need to add following lines in proguard-rules.pro file.

-ignorewarnings
-keepattributes *Annotation*
-keepattributes Exceptions
-keepattributes InnerClasses
-keepattributes Signature
-keep class com.hianalytics.android.**{*;}
-keep class com.huawei.updatesdk.**{*;}
-keep class com.huawei.hms.**{*;}
-repackageclasses

Cordova

Before building the APK, configure the obfuscation configuration file to prevent the HMS Core SDK from being obfuscated.

NOTE: This step is required only if you want to minify and obfuscate your app. By default obfuscation is disabled in Cordova and Ionic apps.

The obfuscation is done by ProGuard. By default, in Cordova and Ionic apps ProGuard is disabled. Even though ProGuard is not available, ProGuard support can be added through 3rd party ProGuard plugins. If ProGuard is enabled in your project, the Huawei Cordova Location plugin's ProGuard rules need to be added to your project. These rules are as follows:

-ignorewarnings
-keepattributes *Annotation*
-keepattributes Exceptions
-keepattributes InnerClasses
-keepattributes Signature
-keep class com.huawei.hianalytics.**{*;}
-keep class com.huawei.updatesdk.**{*;}
-keep class com.huawei.hms.**{*;}
-repackageclasses

5. Questions or Issues

If you have questions about how to use HMS samples, try the following options:

Stack Overflow is the best place for any programming questions. Be sure to tag your question with huawei-mobile-services.
Huawei Developer Forum HMS Core Module is great for general questions, or seeking recommendations and opinions.
Huawei Developer Docs is place to official documentation for all HMS Core Kits, you can find detailed documentations in there.

6. Licensing and Terms

Huawei JS SDK is licensed under Apache 2.0 license.

@hmscore/hms-js-location

JSB Location

Contents

1. Introduction

2. Installation Guide

Creating a Project in AppGallery Connect

Configuring the Signing Certificate Fingerprint

React-Native Integration

Cordova Integration

Ionic Integration

Ionic with Cordova Runtime

Ionic with Capacitor Runtime

Configure Permissions

3. API Reference

HMSLocation

Public Method Summary

3.1.2 Public Methods

Public Methods

getFusedLocationProviderClient()

Return Type

Sample Code

FusedLocationService

Public Method Summary

Public Methods

checkLocationSettings(locationSettingsRequest)

Parameters

Return Type

Sample Code

getLastLocation()

Parameters

Return Type

Sample Code

getLocationAvailability()

Return Type

Sample Code

getNavigationContextState(type)

Parameters

Return Type

Sample Code

removeLocationUpdates(uuid)

Parameters

Return Type

Sample Code

requestLocationUpdates(locationUpdateRequest, callback)

Parameters

Return Type

Sample Code

requestLocationUpdatesEx(locationUpdateRequest, callback)

Parameters

Return Type

Sample Code

setMockLocation(mockLocation)

Parameters

Return Type

Sample Code

setMockMode(isMockMode)

Parameters

Return Type

Sample Code

Data Types

LastLocationRequest

LocationResult

Location

Address

LocationSettingsRequest

LocationRequest

LocationSettingsResult

StatusCheck

LocationSettingsStates

LocationAvailabilityResult

LocationAvailability

NavigationResult

LocationUpdateResultValue

MockLocation

LocationUpdateRequest

LocationUpdateResultContainer

LocationUpdateResult

Constants

PriorityConstants

NavigationRequestConstants

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