Lifestyle Insights

To learn about the Lifestyle Insights feature, check out this page.

This feature is currently in Early Access and is still under active development

Prerequisites

The Lifestyle Insights feature relies on additional library dependencies alongside the core SDK dependency. To start using this feature, you must first add these dependencies to you project.

iOS

This feature is included in the main SDK framework. No additional dependencies are needed.

Android

Open your app build.gradle file and add the lifestyle dependency.

app/build.gradle

dependencies {
    implementation(platform('com.sentiance:sdk-bom:<sentiance-version>'))
    implementation("com.sentiance:sdk-lifestyle")
}

React Native

This feature is included after installing the following modules:

• @sentiance-react-native/core

• @sentiance-react-native/event-timeline

• @sentiance-react-native/user-context

Flutter

This feature can be added by installing the following packages:

• sentiance_core

• sentiance_event_timeline

• sentiance_user_context

Utilize the User Context APIs

In this section, you can find examples of how to query the Sentiance SDK for the user's current context, and how to register to receive context updates in your app, as the user's context changes.

Query for the User's Current Context

The user's context includes the following information:

• Recent transport and stationary events, with venue information if available.

• The user's last known location.

• The user's home and work locations, if detected.

• The user's current semantic time (e.g. morning time, lunch time).

• The user's segments, if detected (e.g. dog walker, aggressive driver).

The population of this context information happens offline, on the device.

iOS

Sentiance.shared.requestUserContext { context, error in
    guard let context = context else {
        print("Error: \(error?.failureReason)")
        return
    }
    
    print("Recent events:")
    
    // Print the recent events
    context.events.forEach({ event in
        print("Event ID: \(event.eventId)")
        print("Started on: \(event.startDate)")
        print("Ended on: \(event.endDate)")
        
        if event.type == .inTransport {
            let transport =  event as! SENTTransportEvent
            
            print("Type: transport")
            print("Mode: \(toStringMode(transport.transportMode))")
            
            if let distance = transport.distanceInMeters {
                print("Distance: \(distance)")
            }
            
            print("Waypoints: \(transport.waypoints)")
            
        }
        else if event.type == .stationary {
            let stationary =  event as! SENTStationaryEvent
            
            print("Type: stationary")
            print("Location: \(stationary.location)")
            print("Venue: \(stationary.venue)")
        }
        else if event.type == .offTheGrid {
            print("Type: off-the-grid")
        }
        else {
            print("Type: unknown")
        }
        
        print("")
    })
    
    // Print the home & work locations, semantic time, and last known location
    print("Home venue: \(context.home)")
    print("Work venue: \(context.work)")
    print("Semantic time: \(toString(context.semanticTime))")
    print("Last known location: \(context.lastKnownLocation)")
    
    // Print the user's active segments
    print("Active segments:")
    
    context.activeSegments.forEach { segment in
        print("  Category: \(toString(segment.category))")
        print("  Subcategory: \(toString(segment.subcategory))")
        print("  Type: \(toString(segment.type))")
        print("  Start date: \(toString(segment.startDate))")
        print("  End date: \(toString(segment.endDate))")
        
        print("  Attributes: ")
        segment.attributes.forEach { attribute in
            print("    \(attribute.name): \(attribute.value)")
        }
    }
}

Android

UserContextApi.getInstance(context).requestUserContext()
    .addOnFailureListener { error ->
        print ("User context retrieval failed with reason ${error.reason}")
    }
    .addOnSuccessListener { context ->

        // Print the recent events
        print("Recent events:")

        context.events.forEach { event ->
            print("Event ID: ${event.id}")
            print("Started on: ${event.startTime}")
            print("Ended on: ${event.endTime}")

            when (event.eventType) {
                EventType.IN_TRANSPORT -> {
                    val transport = event as TransportEvent!

                    print("Type: transport")
                    print("Mode: ${transport.transportMode}")

                    if (transport.distanceInMeters != null) {
                        print("Distance: ${transport.distanceInMeters}")
                    }

                    print("Waypoints: ${transport.waypoints}")
                }
                EventType.STATIONARY -> {
                    val stationary = event as StationaryEvent!

                    print("Type: stationary")
                    print("Location: ${stationary.location}")
                    print("Venue: ${stationary.venue}")
                }
                EventType.OFF_THE_GRID -> {
                    print("Type: off-the-grid")
                }
                else -> {
                    print("Type: unknown")
                }
            }
        }

        // Print the home & work locations, semantic time, and last known location
        print("Home venue: ${context.home}")
        print("Work venue: ${context.work}")
        print("Semantic time: ${context.semanticTime}")
        print("Last known location: ${context.lastKnownLocation}")

        // Print the user's active segments
        print("Active segments:")

        context.activeSegments.forEach { segment ->
            print("  Category: ${segment.category}")
            print("  Subcategory: ${segment.subcategory}")
            print("  Type: ${segment.type}")
            print("  Start date: ${segment.startTime}")
            print("  End date: ${segment.endTime}")

            print("  Attributes: ")
            segment.attributes.forEach { attribute ->
                print("    ${attribute.name}: ${attribute.value}")
            }
        }
    }

React Native

import SentianceUserContext from '@sentiance-react-native/user-context';

const context = await SentianceUserContext.requestUserContext();

// Print the recent events
for (const event of context.events) {
    console.log(`Event ID: ${event.id}`);
    console.log(`Started on: ${event.startTime}`);
    console.log(`Ended on: ${event.endTime}`);

    switch (event.type) {
        case 'IN_TRANSPORT':
            const transport = event;
            console.log('Type: transport');
            console.log(`Mode: ${transport.transportMode}`);

            if (transport.distance) {
                console.log(`Distance: ${transport.distance}`);
            }
            console.log(`Waypoints: ${JSON.stringify(transport.waypoints)}`);
            break;
        case 'STATIONARY':
            const stationary = event;
            console.log('Type: stationary');
            console.log(`Location: ${JSON.stringify(stationary.location)}`);
            console.log(`Venue: ${JSON.stringify(stationary.venue)}`);
            break;
        case 'OFF_THE_GRID':
            console.log('Type: off-the-grid');
            break;
        default:
            console.log('Type: unknown');
    }
}

// Print the home & work locations, semantic time, and last known location
console.log(`Home venue: ${JSON.stringify(context.home)}`)
console.log(`Work venue: ${JSON.stringify(context.work)}`)
console.log(`Semantic time: ${context.semanticTime}`)
console.log(`Last known location: ${JSON.stringify(context.lastKnownLocation)}`)

// Print the user's active segments
console.log('Active segments:')

for (const segment of context.activeSegments) {
    console.log(`  ID: ${segment.id}`)
    console.log(`  Category: ${segment.category}`)
    console.log(`  Subcategory: ${segment.subcategory}`)
    console.log(`  Type: ${segment.type}`)
    console.log(`  Start date: ${segment.startTime}`)
    console.log(`  End date: ${segment.endTime}`)

    console.log('  Attributes:')
    segment.attributes.forEach { attribute ->
        console.log(`    ${attribute.name}: ${attribute.value}`)
    }
}

Flutter

import 'package:sentiance_user_context/sentiance_user_context.dart';
import 'package:sentiance_event_timeline/sentiance_event_timeline.dart';

final sentianceUserContext = SentianceUserContext();

void fetchUserContext() async {
  final context = await sentianceUserContext.requestUserContext();

  // Print the recent events
  for (final event in context.events) {
    print('Event ID: ${event.id}');
    print('Started on: ${event.startTimeMs}');
    print('Ended on: ${event.endTimeMs}');

    if (event is TransportEvent) {
      final transport = event;
      print('Type: transport');
      print('Mode: ${transport.transportMode}');
      print('Distance: ${transport.distance}');
      print('Waypoints: ${transport.waypoints}');
    } else if (event is StationaryEvent) {
      print('Type: stationary');
      print('Location: ${event.location}');
      print('Venue: ${event.venue}');
    } else if (event is OffTheGridEvent) {
      print('Type: off-the-grid');
    } else if (event is UnknownEvent) {
      print('Type: unknown');
    }
  }

  // Print the home & work locations, semantic time, and last known location
  print('Home venue: ${context.home}');
  print('Work venue: ${context.work}');
  print('Semantic time: ${context.semanticTime}');
  print('Last known location: ${context.lastKnownLocation}');

  // Print the user's active segments
  print('Active segments:');

  for (final segment in context.activeSegments) {
    print('  ID: ${segment.segmentId}');
    print('  Category: ${segment.category}');
    print('  Subcategory: ${segment.subcategory}');
    print('  Type: ${segment.type}');
    print('  Start date: ${segment.startTimeMs}');
    print('  End date: ${segment.endTimeMs}');

    print('  Attributes:');
    for (final attribute in segment.attributes.nonNulls) {
      print('    ${attribute.name}: ${attribute.value}');
    }
  }
}

Subscribe for User Context Updates

Checkout Real-time Listeners to read more about implementing the SDK's Listeners

You can subscribe to receive updates, as the user's current context changes.

iOS

public class UserContextHandler: SENTUserContextDelegate {
    
    public func subscribe() {
        Sentiance.shared.userContextDelegate = self
    }    
        
    public func didUpdate(_ userContext: SENTUserContext, 
       forCriteriaMask criteriaMask: SENTUserContextUpdateCriteria) {
        
        // Check the updated criteria
        if criteriaMask.contains(.currentEvent) {
            print("The user's current event was updated")
        }
        if criteriaMask.contains(.visitedVenues) {
            print("The user's visited venue information was updated")
        }
        if criteriaMask.contains(.activeSegments) {
            print("The user's active segments were updated")
        }
       
        // Handle the updated context data (see the Query for the 
        // User's Current Context example above)
    }
}

Android

UserContextApi.getInstance(context)
  .addUserContextUpdateListener { criteria, context ->
    // Check the updated criteria
    if (criteria.contains(UserContextUpdateCriteria.CURRENT_EVENT)) {
        print("The user's current event was updated")
    }
    if (criteria.contains(UserContextUpdateCriteria.VISITED_VENUES)) {
        print("The user's visited venue information was updated")
    }
    if (criteria.contains(UserContextUpdateCriteria.ACTIVE_SEGMENTS)) {
        print("The user's active segments were updated")
    }

    // Handle the updated context data (see the Query for the
    // User's Current Context example above)
}

React Native

To get user context updates even when your app is in the background, place the following code inside your app's entrypoint index.js file. If you're only interested in these updates when your app is foregrounded, place this code inside the appropriate UI code instead.

import {addUserContextUpdateListener} from "@sentiance-react-native/user-context";
import SentianceCore from "@sentiance-react-native/core";

await SentianceCore.ensureInitialized(); // Ensure SDK is initialized

// If you're subscribing to event updates only in the foreground, make sure
// to call subscription.remove() inside your component's componentWillUnmount() function
const subscription = addUserContextUpdateListener(userContext => {
    // Handle the updated context data (see the Query for the
    // User's Current Context example above)
});

Flutter

Create a background.dart file under your project's lib folder with the following code:

background.dart

import 'package:sentiance_user_context/sentiance_user_context.dart';
import 'package:sentiance_core/sentiance_core.dart';

@pragma('vm:entry-point')
void registerUserContextListener() async {
  WidgetsFlutterBinding.ensureInitialized();
  await SentianceCore.ensureInitialized();

  SentianceUserContext.registerUserContextUpdateListener((criteria, context) {
    // Check the updated criteria
    if (criteria.contains(UserContextUpdateCriteria.currentEvent)) {
      print("The user's current event was updated");
    }
    if (criteria.contains(UserContextUpdateCriteria.visitedVenues)) {
      print("The user's visited venue information was updated");
    }
    if (criteria.contains(UserContextUpdateCriteria.activeSegments)) {
      print("The user's active segments were updated");
    }

    // Handle the updated context data (see the Query for the
    // User's Current Context example above)
  });
}

Add the following code, depending on your target platform.

For iOS, add the following to your app delegate class:

AppDelegate.swift

import Flutter
import sentiance_user_context

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {

    override func application(
        _ application: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
    ) -> Bool {
    
        // Other code
        
        // Make sure the SDK is initialized before calling this
        SentianceUserContextPlugin.initializeListener(
            withEntryPoint: "registerUserContextListener",
            libraryURI: "package:your_app_package_name/background.dart"
        )
        
        return super.application(application, didFinishLaunchingWithOptions: launchOptions)
    }
}

For Android, add this code to your custom application class:

MainApplication.kt

import android.app.Application
import com.sentiance.user_context_plugin.UserContextPlugin

class MainApplication : Application() {
    override fun onCreate() {
        super.onCreate()
        
        // Other code

        val dartLibrary = "package:your_app_package_name/background.dart"
        // Make sure the SDK is initialized before calling this
        UserContextPlugin.initializeListener(this, dartLibrary, "registerUserContextListener")
    }
}

If you're calling other 3rd party plugin APIs inside your registerUserContextListener Dart function, then you need to register these plugins with the Sentiance SDK. See this for more details.