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HUAWEI Awareness Kit provides your app with the ability to obtain contextual information including users' time, location, behavior, ambient light, weather, and nearby beacons.

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Huawei Awareness Kit Flutter Plugin #

Contents #

1. Introduction #

HUAWEI Awareness Kit provides your app with the ability to obtain contextual information including users' current time, location, behavior, audio device status, ambient light, weather, and nearby beacons. Your app can gain insight into a user's current situation more efficiently, making it possible to deliver a smarter, more considerate user experience.

  • Capture Client

    The Capture API allows your app to request the current user status, such as time, location, behavior, and whether a headset is connected. For example, after your app runs, it can request the user's time and location in order to recommend entertainment activities available nearby at weekends to the user.

  • Barrier Client

    The Barrier API allows your app to set a barrier for specific contextual conditions. When the conditions are met, your app will receive a notification. For example, a notification is triggered when an audio device connects to a mobile phone for an audio device status barrier about connection or illuminance is less than 100 lux for an ambient light barrier whose trigger condition is set for illuminance that is less than 100 lux. You can also combine different types of barriers for your app to support different use cases. For example, your app can recommend nearby services if the user has stayed in a specified business zone (geofence) for the preset period of time (time barrier).

This plugin enables communication between HUAWEI Awareness Kit SDK and Flutter platform. It exposes all functionality provided by HUAWEI Awareness Kit SDK.

2. Installation Guide #

  • Before you get started, you must register as a HUAWEI developer and complete identity verification on the HUAWEI Developer website. For details, please refer to Register a HUAWEI ID.

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

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

Step 2. Click your project from the project list.

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 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: 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 2: After completing the configuration, click check mark.

Integrating Flutter Awareness Plugin #

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-services.json to download the configuration file.

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

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

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

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

Step 8: Open the build.gradle file in the android directory of your Flutter 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 {
            google()
            jcenter()
            maven { url 'https://developer.huawei.com/repo/' }
        }
    }

Step 9: Open the build.gradle file in the android/app directory.

  • Add apply plugin: 'com.huawei.agconnect' line after the apply entries.

        apply plugin: 'com.android.application'
    apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
    apply plugin: 'com.huawei.agconnect'

  • Set your package name in defaultConfig > applicationId and set minSdkVersion to 24 or higher.

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

        defaultConfig {
            applicationId "<package_name>"
            minSdkVersion 24
            /*
             * <Other configurations>
             */
        }

  • Copy the signature file that generated in Generating a Signing Certificate to android/app directory.

  • Configure the signature in android according to the signature file information and configure Obfuscation Scripts.

        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 {
                minifyEnabled true
                shrinkResources true
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
                signingConfig signingConfigs.config
            }
        }
    }

  • For Obfuscation Scripts, please refer to Configuring Obfuscation Scripts.

Step 10: On your Flutter project directory find and open your pubspec.yaml file and add library to dependencies.

  • To download the package from pub.dev.

    dependencies:
  huawei_awareness: { library version }

    or

    If you downloaded the package from the HUAWEI Developer website, specify the library path on your local device.

    dependencies:
  huawei_awareness:
    # Replace {library path} with actual library path of Huawei Awareness Plugin for Flutter.
    path: { library path }
    • Replace {library path} with the actual library path of Flutter Awareness Plugin. The following are examples:
      • Relative path example: path: ../huawei_awareness
      • Absolute path example: path: D:\Projects\Libraries\huawei_awareness

Step 11: Run following command to update package info.

  [project_path]> flutter pub get

Step 12: Run following command to start the app.

  [project_path]> flutter run

3. API Reference #

AwarenessCaptureClient #

Main entry of capture APIs of HUAWEI Awareness Kit to obtain the headset status, behavior, time, location, beacon status, ambient light, weather, Bluetooth car stereo connection status, phone status, and capability support status.

Method Summary

Method Return Type Description
getBeaconStatus(List<BeaconFilter> filters) Future<BeaconResponse> Uses a variable number of the filters parameters to obtain beacon information.
getBehavior() Future<BehaviorResponse> Obtains current user behavior.
getHeadsetStatus() Future<HeadsetResponse> Obtains headset connection status.
getLocation() Future<LocationResponse> Obtains the current location (latitude and longitude) of a device.
getCurrentLocation() Future<LocationResponse> Re-obtains the latest device location information (latitude and longitude).
getTimeCategories() Future<TimeCategoriesResponse> Obtains the current time.
getTimeCategoriesByUser(double latitude, double longitude) Future<TimeCategoriesResponse> Obtains the current time of a specified location.
getTimeCategoriesByCountryCode(String countryCode) Future<TimeCategoriesResponse> Obtains the current time by country/region code.
getTimeCategoriesByIP() Future<TimeCategoriesResponse> Obtains the current time by IP address.
getTimeCategoriesForFuture(int futureTimestamp) Future<TimeCategoriesResponse> Obtains the time of a specified date by IP address.
getLightIntensity() Future<LightIntensityResponse> Obtains the illuminance.
getWeatherByDevice() Future<WeatherResponse> Obtains the weather of the current location of a device.
getWeatherByPosition(WeatherPosition weatherPosition) Future<WeatherResponse> Obtains weather information about a specified address.
getBluetoothStatus(int deviceType) Future<BluetoothResponse> Obtains the Bluetooth connection status.
getScreenStatus() Future<ScreenStatusResponse> Obtains the screen status response of a device.
getWifiStatus() Future<WiFiResponse> Obtains the Wi-Fi connection status of a device.
getApplicationStatus(String packageName) Future<ApplicationResponse> Obtains the app status of a device.
getDarkModeStatus() Future<DarkModeResponse> Obtains the dark mode status of a device.
querySupportingCapabilities() Future<CapabilityResponse> Obtains capabilities supported by Awareness Kit on the current device.
enableUpdateWindow(bool status) Future<void> Enables/disables update window.

Methods

Future<BeaconResponse> getBeaconStatus(List<BeaconFilter> filters) async

Uses a variable number of the filters parameters to obtain beacon information.

Parameters
Name Type Description
filters List<BeaconFilter> Beacon filter.
Return Type
Type Description
Future<BeaconResponse> Response to the request for obtaining the beacon status.
Call Example
BeaconFilter filter1 = BeaconFilter.matchByBeaconContent(
  beaconNamespace: "beacon-namespace",
  beaconType: "beacon-type",
  beaconContent: Uint8List.fromList(utf8.encode("beacon-content")),
);

BeaconResponse response = await AwarenessCaptureClient.getBeaconStatus(filters: [filter1]);
Future<BehaviorResponse> getBehavior() async

Obtains current user behavior, for example, running, walking, cycling, or driving.

Return Type
Type Description
Future<BehaviorResponse> Response to the request for obtaining the user behavior.
Call Example
BehaviorResponse response = await AwarenessCaptureClient.getBehavior();
Future<HeadsetResponse> getHeadsetStatus() async

Obtains headset connection status.

Return Type
Type Description
Future<HeadsetResponse> Response to the request for obtaining the headset status.
Call Example
HeadsetResponse response = await AwarenessCaptureClient.getHeadsetStatus();
Future<LocationResponse> getLocation() async

Obtains the current location (latitude and longitude) of a device. The location information obtained by using this method is the value queried last time and cached on the device.

Return Type
Type Description
Future<LocationResponse> Response to the location query request.
Call Example
LocationResponse response = await AwarenessCaptureClient.getLocation();
Future<LocationResponse> getCurrentLocation() async

Re-obtains the latest device location information (latitude and longitude). When this method is used to obtain the location information, the system obtains the location information again based on the current location of the device, returns the location information, and updates the location information cached on the device.

Return Type
Type Description
Future<LocationResponse> Response to the location query request.
Call Example
LocationResponse response = await AwarenessCaptureClient.getCurrentLocation();
Future<TimeCategoriesResponse> getTimeCategories() async

Obtains the current time.

Return Type
Type Description
Future<TimeCategoriesResponse> Response to the request for obtaining the time.
Call Example
TimeCategoriesResponse response = await AwarenessCaptureClient.getTimeCategories();
Future<TimeCategoriesResponse> getTimeCategoriesByUser(double latitude, double longitude) async

Obtains the current time of a specified location.

Parameters
Name Type Description
latitude double Latitude.
longitude double Longitude.
Return Type
Type Description
Future<TimeCategoriesResponse> Response to the request for obtaining the time.
Call Example
TimeCategoriesResponse response = await AwarenessCaptureClient.getTimeCategoriesByUser(
    latitude: 22.4943, longitude: 113.7436);
Future<TimeCategoriesResponse> getTimeCategoriesByCountryCode(String countryCode) async

Obtains the current time by country/region code that complies with ISO 3166-1 alpha-2.

Parameters
Name Type Description
countryCode String Country/Region code that complies with ISO 3166-1 alpha-2.
Return Type
Type Description
Future<TimeCategoriesResponse> Response to the request for obtaining the time.
Call Example
TimeCategoriesResponse response = await AwarenessCaptureClient.getTimeCategoriesByCountryCode(countryCode: "TR");
Future<TimeCategoriesResponse> getTimeCategoriesByIP() async

When this method is used, the time of the location corresponding to the IP address is returned. Note that the result returned through this method is less accurate than that returned through getTimeCategories, but this method does not require the precise location permission. You can select a method based on your actual requirements.

Return Type
Type Description
Future<TimeCategoriesResponse> Response to the request for obtaining the time.
Call Example
TimeCategoriesResponse response = await AwarenessCaptureClient.getTimeCategoriesByIP();
Future<TimeCategoriesResponse> getTimeCategoriesForFuture(int futureTimestamp) async

Obtains the time of a specified date by IP address. You can specify a future date and use this method to query its time. Note that cross-year query is not supported.

Parameters
Name Type Description
futureTimestamp int Timestamp of the specified date. You can only set this parameter to a timestamp in the current year, because cross-year query is not supported. The timestamp is the total number of milliseconds from 00:00:00 on January 1, 1970 (GMT) to the current time.
Return Type
Type Description
Future<TimeCategoriesResponse> Response to the request for obtaining the time.
Call Example
TimeCategoriesResponse response = await AwarenessCaptureClient.getTimeCategoriesForFuture(
    futureTimestamp: time_stamp);
Future<LightIntensityResponse> getLightIntensity() async

Obtains the illuminance.

Return Type
Type Description
Future<LightIntensityResponse> Response to the request for obtaining the illuminance.
Call Example
LightIntensityResponse response = await AwarenessCaptureClient.getLightIntensity();
Future<WeatherResponse> getWeatherByDevice() async

Obtains the weather of the current location of a device.

Return Type
Type Description
Future<WeatherResponse> Response to the weather query request.
Call Example
WeatherResponse response = await AwarenessCaptureClient.getWeatherByDevice();
Future<WeatherResponse> getWeatherByPosition(WeatherPosition weatherPosition) async

Obtains weather information about a specified address.

An address has five attributes: country, province, city, district, and county. The city must be set and other four attributes are optional. It is recommended that all attributes be specified to constitute an accurate address so that the returned weather information will be more accurate. When entering an address, you need to specify the language type of the address. The system returns the weather information in the corresponding language based on the language type.

For example, you can enter London, or England, London, and then specify en_GB as the locale to obtain the weather of London.

Parameters
Name Type Description
weatherPosition WeatherPosition Address information for weather query, including the address and language type.
Return Type
Type Description
Future<WeatherResponse> Response to the weather query request.
Call Example
WeatherPosition position = WeatherPosition(city: "London", locale: "en_GB", country: "United Kingdom"));
WeatherResponse response = await AwarenessCaptureClient.getWeatherByPosition(weatherPosition: position);
Future<BluetoothResponse> getBluetoothStatus(int deviceType) async

Obtains the Bluetooth connection status.

Parameters
Name Type Description
deviceType int Bluetooth device type.
Return Type
Type Description
Future<BluetoothResponse> Response to the request for obtaining the Bluetooth car stereo status.
Call Example
BluetoothResponse response = await AwarenessCaptureClient.getBluetoothStatus(
    deviceType:BluetoothStatus.DeviceCar);
Future<ScreenStatusResponse> getScreenStatus() async

Obtains the screen status response of a device.

Return Type
Type Description
Future<ScreenStatusResponse> Response to the request for obtaining the screen status.
Call Example
ScreenStatusResponse response = await AwarenessCaptureClient.getScreenStatus();
Future<WiFiResponse> getWifiStatus() async

Obtains the Wi-Fi connection status of a device.

Return Type
Type Description
Future<WiFiResponse> Response to the request for obtaining the Wi-Fi status.
Call Example
WiFiResponse response = await AwarenessCaptureClient.getWifiStatus();
Future<ApplicationResponse> getApplicationStatus(String packageName) async

Obtains the app status of a device.

Parameters
Name Type Description
packageName String Package name.
Return Type
Type Description
Future<ApplicationResponse> Response to the request for obtaining the app status corresponding to a package.
Call Example
ApplicationResponse response = await AwarenessCaptureClient.getApplicationStatus(
    packageName: "package_name");
Future<DarkModeResponse> getDarkModeStatus() async

Obtains the dark mode status of a device. The dark mode capture function is available only on devices with API level 29 or later.

Return Type
Type Description
Future<DarkModeResponse> Response to the request for obtaining the dark mode status.
Call Example
DarkModeResponse response = await AwarenessCaptureClient.getDarkModeStatus();
Future<CapabilityResponse> querySupportingCapabilities() async

Obtains capabilities supported by Awareness Kit on the current device.

Return Type
Type Description
Future<CapabilityResponse> Response to the request for obtaining supported capabilities.
Call Example
CapabilityResponse capabilities = await AwarenessCaptureClient.querySupportingCapabilities();
Future<void> enableUpdateWindow(bool status) async

Indicates whether to display a dialog box before Awareness Kit or HMS Core (APK) starts an upgrade in your app.

Parameters
Name Type Description
status bool Indicates whether to enable or not.
Return Type
Type Description
Future<void> Future result of an execution that returns no value.
Call Example
await AwarenessCaptureClient.enableUpdateWindow(true);

AwarenessBarrierClient #

Main entry of barrier APIs of HUAWEI Awareness Kit to register and obtain barriers on device.

Method Summary

Method Return Type Description
queryBarriers(BarrierQueryRequest request) Future<BarrierQueryResponse> Queries the current status of a target barrier/s.
deleteBarrier(BarrierDeleteRequest request) Future<bool> Deletes barrier/s.
updateBarrier(AwarenessBarrier barrier, bool autoRemove) Future<bool> Adds or updates barriers.
enableUpdateWindow(bool status) Future<void> Enables/disables update window.

Stream Summary

Method Return Type Description
onBarrierStatusStream Stream<BarrierStatus> The listenable stream that emits BarrierStatus objects.

Methods

Future<BarrierQueryResponse> queryBarriers(BarrierQueryRequest request) async

Queries the current status of a target barrier/s.

Parameters
Name Type Description
request BarrierQueryRequest Query request containing query condition parameters.
Return Type
Type Description
Future<BarrierQueryResponse> Target barrier information, including the key value and current status.
Call Example
BarrierQueryResponse response = await AwarenessBarrierClient.queryBarriers(BarrierQueryRequest.all());
Future<bool> deleteBarrier(BarrierDeleteRequest request) async

Deletes barrier/s.

Parameters
Name Type Description
request BarrierDeleteRequest Delete request containing delete condition parameters.
Return Type
Type Description
Future<bool> The value true indicates successful task execution.
Call Example
bool status = await AwarenessBarrierClient.deleteBarrier(BarrierDeleteRequest.all());
Future<bool> updateBarrier(AwarenessBarrier barrier, bool autoRemove) async

Adds or updates barriers.

If a barrier is added using a key that has been registered, the new barrier will replace the original one. No matter whether the new barrier is registered successfully, all callback requests of the original one will be invalid.

Parameters
Name Type Description
barrier AwarenessBarrier AwarenessBarrier object to be added or updated.
autoRemove bool Indicates whether to enable the autoRemove function.
  • autoRemove as true: The autoRemove function is enabled. When the number of registered barriers exceeds the upper limit, the system automatically deletes the earliest registered barrier and registers a new one.
  • autoRemove as false: The autoRemove function is not enabled. When the number of registered barriers exceeds the upper limit, the system does not delete the earliest registered barrier. As a result, a new barrier fails to be registered.
Return Type
Type Description
Future<bool> The value true indicates successful task execution.
Call Example
HeadsetBarrier headsetBarrier = HeadsetBarrier.keeping(
    barrierLabel: "Headset Barrier", 
    headsetStatus: HeadsetStatus.Connected);

bool status = await AwarenessBarrierClient.updateBarriers(barrier: headsetBarrier);
Future<void>enableUpdateWindow(bool status) async

Indicates whether to display a dialog box before Awareness Kit or HMS Core (APK) starts an upgrade in your app.

Parameters
Name Type Description
status bool Indicates whether to enable or not.
Return Type
Type Description
Future<void> Future result of an execution that returns no value.
Call Example
await AwarenessBarrierClient.enableUpdateWindow(true);

Streams

Stream<BarrierStatus> onBarrierStatusStream

The listenable stream that emits BarrierStatus objects.

Return Type
Type Description
Stream<BarrierStatus> The listenable stream that emits BarrierStatus objects.
Call Example
_onStatusReceived(BarrierStatus status){
    String barrierLabel = status.barrierLabel;
    log(barrierLabel, name: "Barrier Label");
}

_onStatusReceiveError(Object error) {
  print("onStatusReceiveError: " + error.toString());
}

AwarenessBarrierClient.onBarrierStatusStream.listen(_onStatusReceived, onError: _onStatusReceiveError);

AwarenessUtilsClient #

Main entry of utility APIs of HUAWEI Awareness Kit for permissions and HMSLogger handling.

Method Summary

Method Return Type Description
enableLogger() Future<void> This method enables the HMSLogger capability which is used for sending usage analytics of Awareness SDK's methods to improve the service quality.
disableLogger() Future<void> This method disables the HMSLogger capability which is used for sending usage analytics of Awareness SDK's methods to improve the service quality.
hasLocationPermission() Future<bool> This API is used to check location permission is available or not.
hasBackgroundLocationPermission() Future<bool> This API is used to check background location permission is available or not.
hasActivityRecognitionPermission() Future<bool> This API is used to check activity permission is available or not.
requestLocationPermission() Future<bool> This API is used to request location permission.
requestBackgroundLocationPermission() Future<bool> This API is used to request background location permission.
requestActivityRecognitionPermission() Future<bool> This API is used to request activity recognition permission.

Methods

Future<void> enableLogger() async

This method enables the HMSLogger capability which is used for sending usage analytics of Awareness SDK's methods to improve the service quality.

Return Type
Type Description
Future<void> Future result of an execution that returns no value.
Call Example
AwarenessUtilsClient.enableLogger();
Future<void> disableLogger() async

This method disables the HMSLogger capability which is used for sending usage analytics of Awareness SDK's methods to improve the service quality.

Return Type
Type Description
Future<void> Future result of an execution that returns no value.
Call Example
AwarenessUtilsClient.disableLogger();
Future<bool> hasLocationPermission() async

This API is used to check location permission is available or not.

Return Type
Type Description
Future<bool> Returns true if permission is granted, else returns false.
Call Example
bool locationPermission = await AwarenessUtilsClient.hasLocationPermission();
Future<bool> hasBackgroundLocationPermission() async

This API is used to check background location permission is available or not.

Return Type
Type Description
Future<bool> Returns true if permission is granted, else returns false.
Call Example
bool backgroundLocationPermission = await AwarenessUtilsClient.hasBackgroundLocationPermission();
Future<bool> hasActivityRecognitionPermission() async

This API is used to check activity recognition permission is available or not.

Return Type
Type Description
Future<bool> Returns true if permission is granted, else returns false.
Call Example
bool activityRecognitionPermission = await AwarenessUtilsClient.hasActivityRecognitionPermission();
Future<bool> requestLocationPermission() async

This API is used to request location permission.

Return Type
Type Description
Future<bool> Returns true if permission is granted, else returns false.
Call Example
bool status = await AwarenessUtilsClient.requestLocationPermission();
Future<bool> requestBackgroundLocationPermission() async

This API is used to request background location permission.

Return Type
Type Description
Future<bool> Returns true if permission is granted, else returns false.
Call Example
bool status = await AwarenessUtilsClient.requestBackgroundLocationPermission();
Future<bool> requestActivityRecognitionPermission() async

This API is used to request activity recognition permission.

Return Type
Type Description
Future<bool> Returns true if permission is granted, else returns false.
Call Example
bool status = await AwarenessUtilsClient.requestActivityRecognitionPermission();

Data Types #

Data Types Summary

Class Description
AmbientLightBarrier Illuminance barriers, including below, above, and range barriers.
BeaconBarrier Beacon barriers, including the discover, keep, and missed barriers.
BehaviorBarrier Behavior barriers, including the beginning, ending, and keeping barriers of behaviors.
BluetoothBarrier Bluetooth barriers, including the connecting, disconnecting, and keeping barriers.
CombinationBarrier Obtains the integrated barriers after the specific logic operation is executed.
HeadsetBarrier Headset barriers, including the connecting, disconnecting, and keeping barriers.
LocationBarrier Location barriers, including the enter, exit, and stay barriers.
ScreenBarrier Screen barriers, including the status keeping, screen-on, screen-off, and screen-unlock barriers.
TimeBarrier Time barriers, including the barriers to be triggered at a time or periodically based on time.
WifiBarrier Wi-Fi barriers, including the keeping, connecting, disconnecting, enabling, and disabling barriers.
Barrier Registered barrier information.
BarrierStatus The barrier status includes the barrier label, current status, previous status, and last status update time.
BarrierDeleteRequest Deletes a barrier based on the key value.
BarrierQueryRequest Barrier query request.
BarrierQueryResponse Barrier query response.
ApplicationResponse Response to the request for obtaining the app status corresponding to a package.
BeaconResponse Response to the request for obtaining the beacon status.
BehaviorResponse Response to the request for obtaining the user behavior.
BluetoothResponse Response to the request for obtaining the Bluetooth car stereo status.
CapabilityResponse Response to the request for obtaining supported capabilities.
DarkModeResponse Response to the request for obtaining the dark mode status.
HeadsetResponse Response to the request for obtaining the headset status.
LightIntensityResponse Response to the request for obtaining the illuminance.
LocationResponse Response to the location query request.
ScreenStatusResponse Response to the request for obtaining the screen status.
TimeCategoriesResponse Response to the request for obtaining the time.
WeatherResponse Response to the weather query request.
WifiResponse Response to the request for obtaining the Wi-Fi status.
BeaconData Beacon information.
DetectedBehavior Type and confidence of a detected behavior.
WeatherPosition Request parameter class, which is used to pass address information to obtain weather information.
Aqi Air quality indexes.
City City information including the city code, province name, time zone, and city/district name.
DailyLiveInfo Information about a living index on a day.
DailySituation Weather conditions in the daytime or at night.
DailyWeather Weather information of the current day and the next six to seven days.
HourlyWeather Weather information in the current hour and the next 24 hours.
LiveInfo Living index level for the day and the next one or two days.
Situation Current weather information.
WeatherSituation Current weather information, which consists of the current weather information (specified by Situation) and city information (specified by City).
BeaconFilter Represents filter for beacons.
ApplicationStatus Represents constants for Application Status.
AwarenessStatusCodes Represents constants for Awareness Status Codes.
BluetoothStatus Represents constants for Bluetooth Status.
CapabilityStatus Represents constants for Capability Status.
HeadsetStatus Represents constants for Headset Status.
ScreenStatus Represents constants for Screen Status.
WeatherId Represents constants for Weather ID.
WiFiStatus Represents constants for WiFi Status.
  • For more detailed information about classes and constants, please refer to Official Huawei Awareness Flutter Plugin Documentation.

AmbientLightBarrier

Illuminance barriers, including below, above, and range barriers.

Properties
Name Type Description
barrierLabel String Barrier label.
minLightIntensity double Minimum illuminance.
maxLightIntensity double Maximum illuminance.
Constructor Summary
Constructor Description
AmbientLightBarrier.above(String barrierLabel, double minLightIntensity) Illuminance barrier named above.
AmbientLightBarrier.below(String barrierLabel, double maxLightIntensity) Illuminance barrier named below.
AmbientLightBarrier.range(String barrierLabel, double minLightIntensity, double maxLightIntensity) Illuminance barrier named range.
Constructors
AmbientLightBarrier.above(String barrierLabel, double minLightIntensity)

When the illuminance is within the range specified by [minLightIntensity, Float.MAX_VALUE), the barrier status is True and a barrier event is reported. When the illuminance is not within the range, the barrier status is False and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
minLightIntensity double Minimum illuminance.
AmbientLightBarrier.below(String barrierLabel, double maxLightIntensity)

When the illuminance is within the range specified by [0, maxLightIntensity), the barrier status is True and a barrier event is reported. When the illuminance is not within the range, the barrier status is False and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
maxLightIntensity double Maximum illuminance.
AmbientLightBarrier.range(String barrierLabel, double minLightIntensity, double maxLightIntensity)

When the illuminance is within the range specified by [minLightIntensity, maxLightIntensity), the barrier status is True and a barrier event is reported. When the illuminance is not within the range, the barrier status is False and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
minLightIntensity double Minimum illuminance.
maxLightIntensity double Maximum illuminance.

BeaconBarrier

Beacon barriers, including the discover, keep, and missed barriers.

Properties
Name Type Description
barrierLabel String Barrier label.
filters List<BeaconFilter> Beacon filters.
Constructor Summary
Constructor Description
BeaconBarrier.discover(String barrierLabel, List<BeaconFilter> filters) Beacon barrier named discover.
BeaconBarrier.missed(String barrierLabel, List<BeaconFilter> filters) Beacon barrier named missed.
BeaconBarrier.keep(String barrierLabel, List<BeaconFilter> filters) Beacon barrier named keep.
  • To use this barrier, you need to add the android.permission.ACCESS_FINE_LOCATION and android.permission.BLUETOOTH permissions.
Constructors
BeaconBarrier.discover(String barrierLabel, List<BeaconFilter> filters)

After this barrier is added, when a beacon of a specified type is found, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
filters List<BeaconFilter> Beacon filters.
BeaconBarrier.missed(String barrierLabel, List<BeaconFilter> filters)

After this barrier is added, when a beacon of a specified type is lost, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
filters List<BeaconFilter> Beacon filters.
BeaconBarrier.keep(String barrierLabel, List<BeaconFilter> filters)

After this barrier is added, when a nearby beacon of a specified type is found and not lost, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
filters List<BeaconFilter> Beacon filters.

BehaviorBarrier

Behavior barriers, including the beginning, ending, and keeping barriers of behaviors.

Properties
Name Type Description
barrierLabel String Barrier label.
behaviorTypes List<int> One or more behavior type constants.
Constants
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.
Constructor Summary
Constructor Description
BehaviorBarrier.keeping(String barrierLabel, List<int> behaviorTypes) Behavior barrier named keeping.
BehaviorBarrier.beginning(String barrierLabel, List<int> behaviorTypes) Behavior barrier named beginning.
BehaviorBarrier.ending(String barrierLabel, List<int> behaviorTypes) Behavior barrier named ending.
Constructors
BehaviorBarrier.keeping(String barrierLabel, List<int> behaviorTypes)

After the barrier in a specified behavior status (excluding Unkown) is added, when a user is in the behavior status, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
behaviorTypes List<int> One or more behavior type constants.
BehaviorBarrier.beginning(String barrierLabel, List<int> behaviorTypes)

After the barrier in a specified behavior status (excluding Unkown) is added, when a user is in the behavior status, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
behaviorTypes List<int> One or more behavior type constants.
BehaviorBarrier.ending(String barrierLabel, List<int> behaviorTypes)

After the barrier in a specified behavior status (excluding Unkown) is added, when a user stops the behavior, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
behaviorTypes List<int> One or more behavior type constants.

BluetoothBarrier

Bluetooth barriers, including the connecting, disconnecting, and keeping barriers.

Properties
Name Type Description
barrierLabel String Barrier label.
bluetoothStatus int Connection status of the Bluetooth device.
deviceType int Bluetooth device type.
Constructor Summary
Constructor Description
BluetoothBarrier.keeping(String barrierLabel, int bluetoothStatus, int deviceType) Bluetooth barrier named keeping.
BluetoothBarrier.connecting(String barrierLabel, int deviceType) Bluetooth barrier named connecting.
BluetoothBarrier.disconnecting(String barrierLabel, int deviceType) Bluetooth barrier named disconnecting.
  • To use this barrier, you need to add the android.permission.BLUETOOTH permission.
Constructors
BluetoothBarrier.keeping(String barrierLabel, int bluetoothStatus, int deviceType)

After you add this barrier for a Bluetooth state such as Connected or Disconnected, if the Bluetooth keeps in this state, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
bluetoothStatus int Connection status of the Bluetooth device.
deviceType int Bluetooth device type.
BluetoothBarrier.connecting(String barrierLabel, int deviceType)

After you add this barrier, if a Bluetooth device is connected, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
deviceType int Bluetooth device type.
BluetoothBarrier.disconnecting(String barrierLabel, int deviceType)

After you add this barrier, if a Bluetooth device is disconnected, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
deviceType int Bluetooth device type.

CombinationBarrier

Obtains the integrated barriers after the specific logic operation is executed.

Properties
Name Type Description
barrierLabel String Barrier label.
Constructor Summary
Constructor Description
CombinationBarrier.not(String barrierLabel, AwarenessBarrier barrier) Obtains the barrier after the NOT logic operation is executed.
CombinationBarrier.and(String barrierLabel, List<AwarenessBarrier> barriers) Obtains the integrated barriers after the AND logic operation is executed.
CombinationBarrier.or(String barrierLabel, List<AwarenessBarrier> barriers) Obtains the barrier after the OR logic operation is executed.
Constructors
CombinationBarrier.not(String barrierLabel, AwarenessBarrier barrier)

Obtains the barrier after the NOT logic operation is executed.

Parameters

Name Type Description
barrierLabel String Barrier label.
barrier AwarenessBarrier Barrier.
CombinationBarrier.and(String barrierLabel, List<AwarenessBarrier> barriers)

Obtains the integrated barriers after the AND logic operation is executed.

Parameters

Name Type Description
barrierLabel String Barrier label.
barriers List<AwarenessBarrier> Barriers.
CombinationBarrier.or(String barrierLabel, List<AwarenessBarrier> barriers)

Obtains the barrier after the OR logic operation is executed.

Parameters

Name Type Description
barrierLabel String Barrier label.
barriers List<AwarenessBarrier> Barriers.

HeadsetBarrier

Headset barriers, including the connecting, disconnecting, and keeping barriers.

Properties
Name Type Description
barrierLabel String Barrier label.
headsetStatus int Headset status.
Constructor Summary
Constructor Description
HeadsetBarrier.keeping(String barrierLabel, int headsetStatus) Headset barrier named keeping.
HeadsetBarrier.connecting(String barrierLabel) Headset barrier named connecting.
HeadsetBarrier.disconnecting(String barrierLabel) Headset barrier named disconnecting.
  • To use this barrier, you need to add the android.permission.BLUETOOTH permission.
Constructors
HeadsetBarrier.keeping(String barrierLabel, int headsetStatus)

After you add this barrier with headset status Connected and Disconnected, when the headset is in specified state, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
headsetStatus int Headset status.
HeadsetBarrier.connecting(String barrierLabel)

After this barrier is added, when a headset is connected to a device, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
HeadsetBarrier.disconnecting(String barrierLabel)

After this barrier is added, when a headset is disconnected, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.

LocationBarrier

Location barriers, including the enter, exit, and stay barriers.

Properties
Name Type Description
barrierLabel String Barrier label.
latitude double Center latitude of an area. The unit is degree and the value range is [–90°,90°].
longitude double Center longitude of an area. The unit is degree and the value range is (–180°,180°].
radius double Radius of an area. The unit is meter.
timeOfDuration int Minimum stay time in a specified area. The unit is millisecond.
Constructor Summary
Constructor Description
LocationBarrier.enter(String barrierLabel, double latitude, double longitude, double radius) Barrier named enter.
LocationBarrier.stay(String barrierLabel, double latitude, double longitude, double radius, int timeOfDuration) Barrier named exit.
LocationBarrier.exit(String barrierLabel, double latitude, double longitude, double radius) Barrier named stay.
  • To use this barrier, you need to add the android.permission.ACCESS_FINE_LOCATION permission. For Android 10 or later, you also need to add the android.permission.ACCESS_BACKGROUND_LOCATION permission.
Constructors
LocationBarrier.enter(String barrierLabel, double latitude, double longitude, double radius)

After this barrier is added, when a user enters a specified area, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
latitude double Center latitude of an area. The unit is degree and the value range is [–90°,90°].
longitude double Center longitude of an area. The unit is degree and the value range is (–180°,180°].
radius double Radius of an area. The unit is meter.
LocationBarrier.stay(String barrierLabel, double latitude, double longitude, double radius, int timeOfDuration)

After this barrier is added, when a user exits from a specified area, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
latitude double Center latitude of an area. The unit is degree and the value range is [–90°,90°].
longitude double Center longitude of an area. The unit is degree and the value range is (–180°,180°].
radius double Radius of an area. The unit is meter.
timeOfDuration int Minimum stay time in a specified area. The unit is millisecond.
LocationBarrier.exit(String barrierLabel, double latitude, double longitude, double radius)

After this barrier is added, if a user is in a specified area, the barrier status is True; if a user enters the area and stays in the area for a specified time period, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
latitude double Center latitude of an area. The unit is degree and the value range is [–90°,90°].
longitude double Center longitude of an area. The unit is degree and the value range is (–180°,180°].
radius double Radius of an area. The unit is meter.

ScreenBarrier

Screen barriers, including the status keeping, screen-on, screen-off, and screen-unlock barriers. You should remind users that the screen status of their phones may be monitored by the app.

Properties
Name Type Description
barrierLabel String Barrier label.
screenStatus int Screen status.
Constructor Summary
Constructor Description
ScreenBarrier.keeping(String barrierLabel, int screenStatus) Screen status barrier named keeping.
ScreenBarrier.screenOn(String barrierLabel) Screen status barrier named screenOn.
ScreenBarrier.screenOff(String barrierLabel) Screen status barrier named screenOff.
ScreenBarrier.screenUnlock(String barrierLabel) Screen status barrier named screenUnlock.
Constructors
ScreenBarrier.keeping(String barrierLabel, int screenStatus)

After you add this barrier for a screen state such as ScreenOn, ScreenOff, or Unlock, if the screen keeps in this state, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
screenStatus int Screen status.
ScreenBarrier.screenOn(String barrierLabel)

After this barrier is added, when the screen is on but locked, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
ScreenBarrier.screenOff(String barrierLabel)

After this barrier is added, when the screen is off, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.
ScreenBarrier.screenUnlock(String barrierLabel)

After this barrier is added, when the screen is unlocked, the barrier status is True and a barrier event is reported. After 5s, the barrier status changes to False.

Parameters

Name Type Description
barrierLabel String Barrier label.

TimeBarrier

Time barriers, including the barriers to be triggered at a time or periodically based on time.

Properties
Name Type Description
barrierLabel String Barrier label.
timeInstant int Sunrise or sunset.
startTimeOffset int Start time offset of the time barrier.
stopTimeOffset int Stop time offset of the time barrier.
startTimeOfDay int Start time of the barrier, in milliseconds.
stopTimeOfDay int Stop time of the barrier, in milliseconds.
startTimeStamp int Start timestamp.
stopTimeStamp int Stop timestamp.
dayOfWeek int Day of a week.
startTimeOfSpecifiedDay int Start time of the barrier, in milliseconds.
stopTimeOfSpecifiedDay int Stop time of the barrier, in milliseconds.
inTimeCategory int Time.
timeZoneId String Sets the time zone.
Constants
  • For more datailed information, please refer to Official Huawei Awareness Flutter Plugin Documentation.
Constructor Summary
Constructor Description
TimeBarrier.inSunriseOrSunsetPeriod(String barrierLabel, int timeInstant, int startTimeOffset, int stopTimeOffset) Sunrise and sunset barrier.
TimeBarrier.duringPeriodOfDay(String barrierLabel, int startTimeOfDay, int stopTimeOfDay, String timeZoneId) Barrier of a specified time period.
TimeBarrier.duringTimePeriod(String barrierLabel, int startTimeStamp, int stopTimeStamp) Time period barrier.
TimeBarrier.duringPeriodOfWeek(String barrierLabel, int dayOfWeek, int startTimeOfSpecifiedDay, int stopTimeOfSpecifiedDay, String timeZoneId) Barrier for a specific day of a week.
TimeBarrier.inTimeCategory(String barrierLabel, int inTimeCategory) Time barrier.
  • android.permission.ACCESS_FINE_LOCATION permission is required for TimeBarrier.inSunriseOrSunsetPeriod, TimeBarrier.duringPeriodOfDay and TimeBarrier.duringPeriodOfWeek barriers.
Constructors
TimeBarrier.inSunriseOrSunsetPeriod(String barrierLabel, int timeInstant, int startTimeOffset, int stopTimeOffset)

After this barrier is added, when the time is in the specified time period using the sunrise or sunset time as the benchmark, the barrier status is True. Otherwise, the barrier status is False.

Parameters

Name Type Description
barrierLabel String Barrier label.
timeInstant int Sunrise or sunset.
startTimeOffset int Start time offset of the time barrier. The unit is millisecond. The value range is milliseconds from –24 hours to +24 hours. The value must be less than the value of stopTimeOffset.
stopTimeOffset int Stop time offset of the time barrier. The unit is millisecond. The value range is milliseconds from –24 hours to +24 hours. The value must be greater than the value of startTimeOffset.
TimeBarrier.duringPeriodOfDay(String barrierLabel, int startTimeOfDay, int stopTimeOfDay, String timeZoneId)

After this barrier is added, when the time is in the specified time period of a specified time zone, the barrier status is True. Otherwise, the barrier status is False.

Parameters

Name Type Description
barrierLabel String Barrier label.
startTimeOfDay int Start time of the barrier, in milliseconds. The value 0 indicates 00:00. The maximum value is the number of milliseconds of 24 hours.
stopTimeOfDay int Stop time of the barrier, in milliseconds. The value of stopTimeOfDay must be greater than or equal to the value of startTimeOfDay.
timeZoneId String Time zone specified by you. If the time zone does not exist, the time zone of the area where the user is located is used.
TimeBarrier.duringTimePeriod(String barrierLabel, int startTimeStamp, int stopTimeStamp)

After this barrier is added, when the time is in the specified time period, the barrier status is True. Otherwise, the barrier status is False.

Parameters

Name Type Description
barrierLabel String Barrier label.
startTimeStamp int Start timestamp. The value must be greater than or equal to 0.
stopTimeStamp int Stop timestamp. The value of stopTimeStamp must be greater than or equal to that of startTimeStamp.
TimeBarrier.duringPeriodOfWeek(String barrierLabel, int dayOfWeek, int startTimeOfSpecifiedDay, int stopTimeOfSpecifiedDay, String timeZoneId)

After this barrier is added, when the time is in the specified time period on a day of a week in a specified time zone, the barrier status is True. Otherwise, the barrier status is False.

Parameters

Name Type Description
barrierLabel String Barrier label.
dayOfWeek int Day of a week.
startTimeOfSpecifiedDay int Start time of the barrier, in milliseconds. The value 0 indicates 00:00. The maximum value is the number of milliseconds of 24 hours.
stopTimeOfSpecifiedDay int Stop time of the barrier, in milliseconds. The value of stopTimeOfSpecifiedDay must be greater than or equal to the value of startTimeOfSpecifiedDay.
timeZoneId String Sets the time zone. If the time zone does not exist, the time zone of the area where the user is located is used.
TimeBarrier.inTimeCategory(String barrierLabel, int inTimeCategory)

After this barrier is added, the barrier status is True for the specified time. Otherwise, the barrier status is False.

Parameters

Name Type Description
barrierLabel String Barrier label.
inTimeCategory int Time.

WiFiBarrier

Wi-Fi barriers, including the keeping (Wi-Fi status keeping), connecting (Wi-Fi connection), disconnecting (Wi-Fi disconnection), enabling (WLAN enabling), and disabling (WLAN disabling) barriers.

Properties
Name Type Description
barrierLabel String Barrier label.
wifiStatus int Wi-Fi status.
bssid String (BSSID) Physical address of the Wi-Fi source.
ssid String (SSID) Name of the Wi-Fi source.
Constructor Summary
Constructor Description
WiFiBarrier.keeping(String barrierLabel, int wifiStatus, String bssid, String ssid) Wi-Fi status barrier named keeping.
WiFiBarrier.connecting(String barrierLabel, String bssid, String ssid) Wi-Fi status barrier named connecting.
WiFiBarrier.disconnecting(String barrierLabel, String bssid, String ssid) Wi-Fi status barrier named disconnecting.
WiFiBarrier.enabling(String barrierLabel) Wi-Fi status barrier named enabling.
WiFiBarrier.disabling(String barrierLabel) Wi-Fi status barrier named disabling.
Constructors
WiFiBarrier.keeping(String barrierLabel, int wifiStatus, String bssid, String ssid)

After you add this barrier for a Wi-Fi state such as Enabled, Disabled, Connected, or Disconnected, if the Wi-Fi keeps in this state, the barrier status is True and a barrier event is reported.

Parameters

Name Type Description
barrierLabel String Barrier label.
wifiStatus int Wi-Fi status.
bssid String If the value of wifiStatus is Connected or Disabled, the BSSID (physical address of the Wi-Fi source) of the Wi-Fi barrier can be specified. The value null indicates any BSSID. If the value of wifiStatus is Enabled or Disabled, the BSSID is invalid.
ssid String If the value of wifiStatus is Connected or Disconnected, the SSID (name of the Wi-Fi source) of the Wi-Fi barrier can be specified. The value null indicates any SSID. If the value of wifiStatus is Enabled or Disabled, the SSID is invalid.
WiFiBarrier.connecting(String barrierLabel, String bssid, String ssid)

When a device connects to a Wi-Fi, the barrier status is True and a barrier event is reported. The value automatically changes to False 5s later. If GPS is disabled on the device, the barrier status cannot be correctly determined.

Parameters

Name Type Description
barrierLabel String Barrier label.
bssid String BSSID (physical address of the Wi-Fi source) of a specific Wi-Fi. The value null indicates any BSSID.
ssid String SSID (name of the Wi-Fi source) of a specific Wi-Fi. The value null indicates any SSID.
WiFiBarrier.disconnecting(String barrierLabel, String bssid, String ssid)

When a device disconnects from a Wi-Fi, the barrier status is True and a barrier event is reported. The value automatically changes to False 5s later.

Parameters

Name Type Description
barrierLabel String Barrier label.
bssid String BSSID (physical address of the Wi-Fi source) of a specific Wi-Fi. The value null indicates any BSSID.
ssid String SSID (name of the Wi-Fi source) of a specific Wi-Fi. The value null indicates any SSID.
WiFiBarrier.enabling(String barrierLabel)

When a device enables WLAN, the barrier status is True and a barrier event is reported. The value automatically changes to False 5s later.

Parameters

Name Type Description
barrierLabel String Barrier label.
WiFiBarrier.disabling(String barrierLabel)

When a device disables WLAN, the barrier status is True and a barrier event is reported. The value automatically changes to False 5s later.

Parameters

Name Type Description
barrierLabel String Barrier label.

Barrier

Registered barrier information.

Properties
Name Type Description
barrierLabel String Barrier label.
barrierStatus BarrierStatus Barrier status.
Constructor Summary
Constructor Description
Barrier(String barrierLabel, BarrierStatus barrierStatus) Default constructor.
Constructors
Barrier(String barrierLabel, BarrierStatus barrierStatus)

Constructor for Barrier object.

Parameters

Name Type Description
barrierLabel String Barrier label.
barrierStatus BarrierStatus Barrier status.

BarrierStatus

The barrier status includes the barrier label, current status, previous status, and last status update time.

Properties
Name Type Description
barrierLabel String Key value that uniquely identifies a barrier.
lastBarrierUpdateTime int The timestamp of the last barrier status change.
lastStatus int The previous barrier status.
presentStatus int The current barrier status.
Constants
Constant Type Value Description
True int 1 Barrier status TRUE.
False int 0 Barrier status FALSE.
Unknown int 2 Barrier status UNKNOWN.
Constructor Summary
Constructor Description
BarrierStatus(String barrierLabel, int lastBarrierUpdateTime, int lastStatus, int presentStatus) Default constructor.
Constructors
BarrierStatus(String barrierLabel, int lastBarrierUpdateTime, int lastStatus, int presentStatus)

Constructor for BarrierStatus object.

Parameters

Name Type Description
barrierLabel String Key value that uniquely identifies a barrier.
lastBarrierUpdateTime int The timestamp of the last barrier status change.
lastStatus int The previous barrier status.
presentStatus int The current barrier status.

BarrierDeleteRequest

Deletes a barrier based on the key value.

Constructor Summary
Constructor Description
BarrierDeleteRequest.all() Creates a BarrierDeleteRequest object that deletes all registered barriers.
BarrierDeleteRequest.withLabel(String barrierLabel) Creates a BarrierDeleteRequest object that deletes the specified barrier.
Constructors
BarrierDeleteRequest.all()

Creates a BarrierDeleteRequest object that deletes all registered barriers.

BarrierDeleteRequest.withLabel(String barrierLabel)

Creates a BarrierDeleteRequest object that deletes the specified barrier.

Parameters

Name Type Description
barrierLabel String Barrier label.

BarrierQueryRequest

Barrier query request.

Constructor Summary
Constructor Description
BarrierQueryRequest.all() Creates a BarrierQueryRequest object that queries all registered barriers.
BarrierQueryRequest.forBarriers(List<String> barrierKeys) Creates a BarrierQueryRequest object that queries the specified barriers.
Constructors
BarrierQueryRequest.all()

Creates a BarrierQueryRequest object that queries all registered barriers.

BarrierQueryRequest.forBarriers(List<String> barrierKeys)

Creates a BarrierQueryRequest object that queries the specified barriers.

Parameters

Name Type Description
barrierKeys List<String> Barrier labels.

BarrierQueryResponse

Barrier query response.

Properties
Name Type Description
barriers List<Barrier> List of registered barriers.
Constructor Summary
Constructor Description
BarrierQueryResponse(List<Barrier> barriers) Default constructor.
Constructors
BarrierQueryResponse(List<Barrier> barriers)

Constructor for BarrierQueryResponse object.

Parameters

Name Type Description
barriers List<Barrier> barriers List of registered barriers.

ApplicationResponse

Response to the request for obtaining the app status corresponding to a package, which can be obtained by calling the getApplicationStatus method provided by AwarenessCaptureClient.

Properties
Name Type Description
applicationStatus int The application status.
Constructor Summary
Constructor Description
ApplicationResponse(int applicationStatus) Default constructor.
Constructors
ApplicationResponse(int applicationStatus)

Constructor for ApplicationResponse object.

Parameters

Name Type Description
applicationStatus int The application status.

BeaconResponse

Response to the request for obtaining the beacon status, which can be obtained by calling the getBeaconStatus method provided by AwarenessCaptureClient.

Properties
Name Type Description
beacons List<BeaconData> Beacon device status information.
Constructor Summary
Constructor Description
BeaconResponse(List<BeaconData> beacons) Default constructor.
Constructors
BeaconResponse(List<BeaconData> beacons)

Constructor for BeaconResponse object.

Parameters

Name Type Description
beacons List<BeaconData> Beacon device status information.

BehaviorResponse

Response to the request for obtaining the user behavior, which can be obtained by calling the getBehavior method provided by AwarenessCaptureClient.

Properties
Name Type Description
elapsedRealtimeMillis int Actual time (in milliseconds) used for this detection since startup.
time int Timestamp of the current detection.
mostLikelyBehavior DetectedBehavior Most likely behavior.
probableBehavior List<DetectedBehavior> Detected behaviors, which are sorted by confidence (most likely first).
Constructor Summary
Constructor Description
BehaviorResponse(int elapsedRealtimeMillis, int time, DetectedBehavior mostLikelyBehavior, List<DetectedBehavior> probableBehavior) Default constructor.
Constructors
BehaviorResponse(int elapsedRealtimeMillis, int time, DetectedBehavior mostLikelyBehavior, List<DetectedBehavior> probableBehavior)

Constructor for BehaviorResponse object.

Parameters

Name Type Description
elapsedRealtimeMillis int Actual time (in milliseconds) used for this detection since startup.
time int Timestamp of the current detection.
mostLikelyBehavior DetectedBehavior Most likely behavior.
probableBehavior List<DetectedBehavior> Detected behaviors, which are sorted by confidence (most likely first).

BluetoothResponse

Response to the request for obtaining the Bluetooth car stereo status, which can be obtained by calling the getBluetoothStatus method provided by AwarenessCaptureClient.

Properties
Name Type Description
bluetoothStatus int Bluetooth status.
Constructor Summary
Constructor Description
BluetoothResponse(int bluetoothStatus) Default constructor.
Constructors
BluetoothResponse(int bluetoothStatus)

Constructor for BluetoothResponse object.

Parameters

Name Type Description
bluetoothStatus int Bluetooth status.

CapabilityResponse

Response to the request for obtaining supported capabilities, which can be obtained by calling the querySupportingCapabilities method provided by AwarenessCaptureClient.

Properties
Name Type Description
deviceSupportCapabilities List<int> Status constants of capabilities supported by Awareness Kit on the current device.
Constructor Summary
Constructor Description
CapabilityResponse(List<int> deviceSupportCapabilities) Default constructor.
Constructors
CapabilityResponse(List<int> deviceSupportCapabilities)

Constructor for CapabilityResponse object.

Parameters

Name Type Description
deviceSupportCapabilities List<int> Status constants of capabilities supported by Awareness Kit on the current device.

DarkModeResponse

Response to the request for obtaining the dark mode status, which can be obtained by calling the getDarkModeStatus method provided by AwarenessCaptureClient.

Properties
Name Type Description
isDartModeOn bool Dark mode status.
Constructor Summary
Constructor Description
DarkModeResponse(bool isDarkModeOn) Default constructor.
Constructors
DarkModeResponse(bool isDarkModeOn)

Constructor for DarkModeResponse object.

Parameters

Name Type Description
isDarkModeOn bool Dark mode status.

HeadsetResponse

Response to the request for obtaining the headset status, which can be obtained by calling the getHeadsetStatus method provided by AwarenessCaptureClient.

Properties
Name Type Description
headsetStatus int Headset status.
Constructor Summary
Constructor Description
HeadsetResponse(int headsetStatus) Default constructor.
Constructors
HeadsetResponse(int headsetStatus)

Constructor for HeadsetResponse object.

Parameters

Name Type Description
headsetStatus int Headset status.

LightIntensityResponse

Response to the request for obtaining the illuminance, which can be obtained by calling the getLightIntensity method provided by AwarenessCaptureClient.

Properties
Name Type Description
lightIntensity double Illuminance value.
Constructor Summary
Constructor Description
LightIntensityResponse(double lightIntensity) Default constructor.
Constructors
LightIntensityResponse(double lightIntensity)

Constructor for LightIntensityResponse object.

Parameters

Name Type Description
lightIntensity double Illuminance value.

LocationResponse

Response to the location query request. Your app can call the getLocation method provided by AwarenessCaptureClient to obtain the last geographical location response or call the getCurrentLocation method to obtain the current geographical location response.

Properties
Name Type Description
latitude double Latitude, in degrees.
longitude double Longitude, in degrees.
altitude double Altitude if available, in meters above the WGS 84 reference ellipsoid.
speed double Speed if it is available, in meters/second over ground.
bearing double The bearing, in degrees.
accuracy double Estimated horizontal accuracy of this location, radial, in meters.
verticalAccuracyMeters double Estimated vertical accuracy of this location, in meters.
bearingAccuracyDegrees double Estimated bearing accuracy of this location, in degrees.
speedAccuracyMetersPerSecond double Estimated speed accuracy of this location, in meters per second.
time int Time in milliseconds since January 1, 1970.
fromMockProvider bool Location provider status.
Constructor Summary
Constructor Description
LocationResponse(double latitude, double longitude, double altitude, double speed, double bearing, double accuracy, double verticalAccuracyMeters, double bearingAccuracyDegrees, double speedAccuracyMetersPerSecond, int time, bool fromMockProvider) Default constructor.
Constructors
LocationResponse(double latitude, double longitude, double altitude, double speed, double bearing, double accuracy, double verticalAccuracyMeters, double bearingAccuracyDegrees, double speedAccuracyMetersPerSecond, int time, bool fromMockProvider)

Constructor for LocationResponse object.

Parameters

Name Type Description
latitude double Latitude, in degrees.
longitude double Longitude, in degrees.
altitude double Altitude if available, in meters above the WGS 84 reference ellipsoid.
speed double Speed if it is available, in meters/second over ground.
bearing double The bearing, in degrees.
accuracy double Estimated horizontal accuracy of this location, radial, in meters.
verticalAccuracyMeters double Estimated vertical accuracy of this location, in meters.
bearingAccuracyDegrees double Estimated bearing accuracy of this location, in degrees.
speedAccuracyMetersPerSecond double Estimated speed accuracy of this location, in meters per second.
time int Time in milliseconds since January 1, 1970.
fromMockProvider bool Location provider status.

ScreenStatusResponse

Response to the request for obtaining the screen status. You can call the getScreenStatus method provided by AwarenessCaptureClient to obtain the response instance of the screen status.

Properties
Name Type Description
screenStatus int Displays screen status information.
Constructor Summary
Constructor Description
ScreenStatusResponse(int screenStatus) Default constructor.
Constructors
ScreenStatusResponse(int screenStatus)

Constructor for ScreenStatus object.

Parameters

Name Type Description
screenStatus int Displays screen status information.

TimeCategoriesResponse

Response to the request for obtaining the time, which can be obtained by calling the getTimeCategories method provided by AwarenessCaptureClient.

Properties
Name Type Description
timeCategories List<int> Time categories.
Constructor Summary
Constructor Description
TimeCategoriesResponse(List<int> timeCategories) Default constructor.
Constructors
TimeCategoriesResponse(List<int> timeCategories)

Constructor for TimeCategoriesResponse object.

Parameters

Name Type Description
timeCategories List<int> Time categories.

WeatherResponse

Response to the weather query request. You can call the getWeatherByDevice method provided by AwarenessCaptureClient to obtain the weather of the current location of a device, or call the getWeatherByPosition method to obtain the weather of a specified position.

Properties
Name Type Description
dailyWeather List<DailyWeather> Weather information of the next seven days.
hourlyWeather List<HourlyWeather> Weather information in the next 24 hours.
liveInfo List<LiveInfo> The living index of the current day and the next one to two days.
aqi Aqi The AQI information.
weatherSituation WeatherSituation Weather and city information.
Constants
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.
Constructor Summary
Constructor Description
WeatherResponse(List<DailyWeather> dailyWeather, List<HourlyWeather> hourlyWeather, List<LiveInfo> liveInfo, Aqi aqi, WeatherSituation weatherSituation) Default constructor.
Constructors
WeatherResponse(List<DailyWeather> dailyWeather, List<HourlyWeather> hourlyWeather, List<LiveInfo> liveInfo, Aqi aqi, WeatherSituation weatherSituation)

Constructor for WeatherResponse object.

Parameters

Name Type Description
dailyWeather List<DailyWeather> Weather information of the next seven days.
hourlyWeather List<HourlyWeather> Weather information in the next 24 hours.
liveInfo List<LiveInfo> The living index of the current day and the next one to two days.
aqi Aqi The AQI information.
weatherSituation WeatherSituation Weather and city information.

WiFiResponse

Response to the request for obtaining the Wi-Fi status, which can be obtained by calling the getWifiStatus method provided by AwarenessCaptureClient.

Properties
Name Type Description
status int Wi-Fi status of a device.
bssid String Wi-Fi BSSID.
ssid String Wi-Fi SSID.
Constructor Summary
Constructor Description
WiFiResponse(int status, String bssid, String ssid) Default constructor.
Constructors
WiFiResponse(int status, String bssid, String ssid)

Constructor for WiFiResponse object.

Parameters

Name Type Description
status int Wi-Fi status of a device.
bssid String Wi-Fi BSSID.
ssid String Wi-Fi SSID.

BeaconData

Beacon information.

Properties
Name Type Description
beaconId String Beacon broadcast ID.
namespace String Beacon namespace.
type String Beacon type.
content List<int> Beacon information.
Constructor Summary
Constructor Description
BeaconData(String beaconId, String namespace, String type, List<int> content) Default constructor.
Constructors
BeaconData(String beaconId, String namespace, String type, List<int> content)

Constructor for BeaconData object.

Parameters

Name Type Description
beaconId String Beacon broadcast ID.
namespace String Beacon namespace.
type String Beacon type.
content List<int> Beacon information.

DetectedBehavior

Type and confidence of a detected behavior.

Properties
Name Type Description
confidence int Confidence, indicating the possibility that a user is executing the behavior. The value ranges from 0 to 100.
type int Detected behavior.
Constructor Summary
Constructor Description
DetectedBehavior(int confidence, int type) Default constructor.
Constructors
DetectedBehavior(int confidence, int type)

Constructor for DetectedBehavior object.

Parameters

Name Type Description
confidence int Confidence, indicating the possibility that a user is executing the behavior. The value ranges from 0 to 100.
type int Detected behavior.

WeatherPosition

Request parameter class, which is used to pass address information to obtain weather information. The address information includes six attributes: country, province, city, district, county, and language type.

An address has five attributes: country, province, city, district, and county. The city must be set and other four attributes are optional. For example, if you want to query the weather of London, you can pass only the city attribute "London" or both the country attribute "United Kingdom" and city attribute "London".

The language type is of the locale format. For example, en_GB indicates British English. Note that the language type is mandatory and must meet the locale format language code_country/region code.

If the input address information is invalid, the weather information obtained by the getWeatherByPosition(WeatherPosition position) method is empty.

Properties
Name Type Description
country String Country name.
province String Province name.
city String City name, which is mandatory.
district String District name.
county String County name.
locale String Language type of the passed address, for example, zh_CN or en_US. Note that the language type is mandatory and must meet the locale format language code_country/region code.
Constructor Summary
Constructor Description
WeatherPosition(String country, String province, String city, String district, String county, String locale) Default contructor.
Constructors
WeatherPosition(String country, String province, String city, String district, String county, String locale)

Constructor for WeatherPosition object.

Parameters

Name Type Description
country String Country name.
province String Province name.
city String City name, which is mandatory.
district String District name.
county String County name.
locale String Language type of the passed address, for example, zh_CN or en_US. Note that the language type is mandatory and must meet the locale format language code_country/region code.

Aqi

Air quality indexes. The indexes include those about the concentration of carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3), PM10, PM2.5, and sulphur dioxide (SO2), as well as the AQI. This class supports only data in China.

Properties
Name Type Description
aqiValue int AQI information.
co int CO concentration index, which is the average value in 8 hours, in mg/m3.
no2 int NO2 concentration index, which is the average value in 1 hour, in μg/m3.
o3 int O3 concentration index, which is the average value in 1 hour, in μg/m3.
pm10 int PM10 concentration index (the diameter of particles is less than or equal to 10 μm), which is the average value in 24 hours, in μg/m3.
pm25 int PM2.5 concentration index (the diameter of particles is less than or equal to 2.5 μm), which is the average value in 24 hours, in μg/m3.
so2 int SO2 concentration index, which is the average value in 1 hour, in μg/m3.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

City

City information including the city code, province name, time zone, and city/district name.

Properties
Name Type Description
cityCode String Code used in Awareness Kit to identify the state/province, city, county, and town in the world.
name String Time zone of the city in Alson format. Example: Asia/shanghai
provinceName String Province name, which may be set to null.
timeZone String City/district/town name.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

DailyLiveInfo

Information about a living index on a day. The indexes are about dressing, sports, temperature, car washing, tourism, and UV. This class supports only data in China.

Properties
Name Type Description
dateTimeStamp int Timestamp of a living index, which is 00:00 of the local location.
level String Level of a living index. For example, a dressing index has six levels from 1 to 6.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

DailySituation

Weather conditions in the daytime or at night, including the weather ID, wind speed, wind level, and wind direction.

Properties
Name Type Description
cnWeatherId int The weather ID. Weather IDs vary with the current weather. For example, 1 indicates sunny, 7 indicates cloudy, and 18 indicates rain.
weatherId int The weather ID. Weather IDs vary with the current weather. For example, 1 indicates sunny, 7 indicates cloudy, and 18 indicates rain.
windDir String The wind direction. The options are NE (northeast), E (east), SE (southeast), S (south), SW (southwest), W (west), N (north), and NW (northwest).
windLevel int The wind level. The value ranges from 0 to 17. The value 0 indicates a breeze in China and no wind outside China.
windSpeed int Obtains the wind speed (unit: km/h).
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

DailyWeather

Weather information of the current day and the next six to seven days, including the moonrise, moonset, sunrise, sunset, lowest temperature and highest temperature (Celsius and Fahrenheit), local timestamp in the early morning, month phase, weather in daytime (specified by DailySituation), and weather at night (specified by DailySituation).

Properties
Name Type Description
aqiValue int AQI information.
dateTimeStamp int The timestamp of the weather of a day, which is 00:00 of the local location.
maxTempC int The highest temperature (Celsius) of a day.
maxTempF int The highest temperature (Fahrenheit) of a day.
minTempC int The lowest temperature (Celsius) of a day.
minTempF int The lowest temperature (Fahrenheit) of a day.
moonRise int The moonrise of a day.
moonSet int The moonset of a day.
moonPhase String The Moon phase of a day. The options are New, Waxingcrescent, First, WaxingGibbous, Full, WaningGibbous, Last, and WaningCrescent.
situationDay DailySituation The weather information in the daytime.
situationNight DailySituation The weather information at night.
sunRise int The sunrise of a day.
sunSet int The sunset of a day.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

HourlyWeather

Weather information in the current hour and the next 24 hours, including the weather ID, time, temperature (Celsius and Fahrenheit), rainfall probability, and whether it is in the daytime or at night.

Properties
Name Type Description
cnWeatherId int Weather IDs vary with the current weather. For example, 1 indicates sunny, 7 indicates cloudy, and 18 indicates rain.
dateTimeStamp int The timestamp in the current hour.
isDayNight bool Status indicates whether it is in the daytime or at night.
rainProbability int The rainfall probability, in percentage.
tempC int The current temperature (Celsius).
tempF int The current temperature (Fahrenheit).
weatherId int Weather IDs vary with the current weather. For example, 1 indicates sunny, 7 indicates cloudy, and 18 indicates rain.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

LiveInfo

Living index level for the day and the next one or two days, including the code and level for the current day and next one to two days. This class supports only data in China.

Properties
Name Type Description
code String The living index code.
levelList List<DailyLiveInfo> Index level information of the current day and the next one to two days.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

Situation

Current weather information. The information includes the weather ID, humidity, atmospheric temperature (Celsius and Fahrenheit), somatosensory temperature (Celsius and Fahrenheit), wind direction, wind level, wind speed, atmospheric pressure, UV intensity, and update time.

Properties
Name Type Description
cnWeatherId int The weather ID. Weather IDs vary with the current weather. For example, 1 indicates sunny, 7 indicates cloudy, and 18 indicates rain.
humidity String The humidity, in percentage.
pressure int The atmospheric pressure, in hPa.
realFeelC int The somatosensory temperature (Celsius).
realFeelF int The somatosensory temperature (Fahrenheit).
temperatureC int The current atmospheric temperature (Celsius).
temperatureF int The current temperature (Fahrenheit).
updateTime int The release time of the weather broadcast.
uvIndex int The current UV intensity.
weatherId int The weather ID. Weather IDs vary with the current weather. For example, 1 indicates sunny, 7 indicates cloudy, and 18 indicates rain.
windDir String The wind direction. The options are NE (northeast), E (east), SE (southeast), S (south), SW (southwest), W (west), N (north), and NW (northwest).
windSpeed int The wind speed (unit: km/h).
windLevel int The wind level. The value ranges from 0 to 17. 0: no wind
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

WeatherSituation

Current weather information, which consists of the current weather information (specified by Situation) and city information (specified by City).

Properties
Name Type Description
city City The city information of the current weather.
situation Situation The current weather information. The information includes the weather ID, humidity, atmospheric temperature (Celsius and Fahrenheit), somatosensory temperature (Celsius and Fahrenheit), wind direction, wind level, wind speed, atmospheric pressure, UV intensity, and update time.
  • For details please refer to Official Huawei Awareness Flutter Plugin Documentation.

BeaconFilter

Represents filter for beacons.

Properties
Name Type Description
beaconNamespace String Beacon namespace.
beaconType String Beacon type.
beaconContent Uint8List Beacon context.
beaconId String Beacon broadcast ID. Currently, the Eddystone-UID and iBeacon ID (combination of UUID, major, and minor values) are supported.
Constructor Summary
Constructor Description
BeaconFilter.matchByNameType(String beaconNamespace, String beaconType) Creates a beacon filter based on the beacon namespace and type.
BeaconFilter.matchByBeaconContent(String beaconNamespace, String beaconType, Uint8List beaconContent) Creates a beacon filter based on the specified beacon namespace, type, and content.
BeaconFilter.matchByBeaconId(String beaconId) Creates a beacon filter based on a specified beacon broadcast ID.
Constructors
BeaconFilter.matchByNameType(String beaconNamespace, String beaconType)

Creates a beacon filter based on the beacon namespace and type.

Parameters

Name Type Description
beaconNamespace String Beacon namespace.
beaconType String Beacon type.
BeaconFilter.matchByBeaconContent(String beaconNamespace, String beaconType, Uint8List beaconContent)

Creates a beacon filter based on the specified beacon namespace, type, and content.

Parameters

Name Type Description
beaconNamespace String Beacon namespace.
beaconType String Beacon type.
beaconContent Uint8List Beacon context.
BeaconFilter.matchByBeaconId(String beaconId)

Creates a beacon filter based on a specified beacon broadcast ID.

Parameters

Name Type Description
beaconId String Beacon broadcast ID. Currently, the Eddystone-UID and iBeacon ID (combination of UUID, major, and minor values) are supported.

4. Configuration and Description #

Preparing for Release #

Before building a release version of your app you may need to customize the proguard-rules.pro obfuscation configuration file to prevent the HMS Core SDK from being obfuscated. Add the configurations below to exclude the HMS Core SDK from obfuscation. For more information on this topic refer to this Android developer guide.

<flutter_project>/android/app/proguard-rules.pro

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

# Flutter wrapper
-keep class io.flutter.app.** { *; }
-keep class io.flutter.plugin.**  { *; }
-keep class io.flutter.util.**  { *; }
-keep class io.flutter.view.**  { *; }
-keep class io.flutter.**  { *; }
-keep class io.flutter.plugins.**  { *; }
-dontwarn io.flutter.embedding.**

<flutter_project>/android/app/build.gradle

buildTypes {
    debug {
        signingConfig signingConfigs.config
    }
    release {
        signingConfig signingConfigs.config
        // Enables code shrinking, obfuscation and optimization for release builds
        minifyEnabled true
        // Unused resources will be removed, resources defined in the res/raw/keep.xml will be kept.
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

5. Sample Project #

This plugin includes a demo project in the example folder, there you can find more usage examples.

6. 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.
  • Github is the official repository for these plugins, You can open an issue or submit your ideas.
  • 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.

If you run into a bug in our samples, please submit an issue to the GitHub repository.

7. Licensing and Terms #

Huawei Awareness Kit Flutter Plugin is licensed under Apache 2.0 license

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Metadata

HUAWEI Awareness Kit provides your app with the ability to obtain contextual information including users' time, location, behavior, ambient light, weather, and nearby beacons.

Homepage
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License

Apache-2.0 (LICENSE)

Dependencies

flutter

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