Added a button that sends last known location to telegram.

Distance between updates has also been set to only 1000 meters.

app/build.gradle.kts

@@ -54,5 +54,6 @@ dependencies {
     implementation("io.jenetics:jpx:3.1.0")
     // https://mvnrepository.com/artifact/org.codehaus.woodstox/woodstox-core-asl
     implementation("org.codehaus.woodstox:woodstox-core-asl:4.4.1")
+    implementation("com.github.pengrad:java-telegram-bot-api:7.9.1")
 
-}
+}

app/src/main/AndroidManifest.xml

@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

app/src/main/java/com/proculite/logmylocation/LocationLoggingService.java

@@ -9,7 +9,10 @@ import android.content.pm.ServiceInfo;
 import android.location.Location;
 import android.location.LocationListener;
 import android.location.LocationManager;
-import android.location.LocationProvider;
+import android.net.ConnectivityManager;
+import android.net.Network;
+import android.net.NetworkCapabilities;
+import android.net.NetworkRequest;
 import android.os.Build;
 import android.os.IBinder;
 import android.util.Log;
@@ -17,14 +20,28 @@ import android.util.Log;
 import androidx.annotation.NonNull;
 import androidx.core.app.NotificationCompat;
 import androidx.core.app.ServiceCompat;
-import androidx.core.location.LocationManagerCompat;
 import androidx.room.Room;
 
+import com.pengrad.telegrambot.TelegramBot;
+import com.pengrad.telegrambot.request.SendLocation;
+
+import java.time.Duration;
 import java.util.List;
 
 public class LocationLoggingService extends Service implements LocationListener {
     private final String TAG = LocationLoggingService.class.getName();
     private LocationDao locationDao;
+    private Location lastLocation;
+
+    Duration durationBetweenTelegramUpdates = Duration.ofMinutes(6);
+    long metersDistanceBetweenTelegramUpdates = 1000;
+
+    private boolean internetAvailable = false;
+    NetworkRequest networkRequest = new NetworkRequest.Builder()
+            .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+            .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+            .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
+            .build();
 
     public LocationLoggingService() {
     }
@@ -61,10 +78,31 @@ public class LocationLoggingService extends Service implements LocationListener
         locationDao = database.locationDao();
 
         subscribeToLocationUpdates(this);
+        subscribeToNetworkUpdates();
 
         return super.onStartCommand(intent, flags, startId);
     }
 
+    public void subscribeToNetworkUpdates(){
+        ConnectivityManager connectivityManager =
+                (ConnectivityManager) getSystemService(ConnectivityManager.class);
+        connectivityManager.requestNetwork(networkRequest, new ConnectivityManager.NetworkCallback(){
+            @Override
+            public void onLost(@NonNull Network network) {
+                super.onLost(network);
+                Log.i(TAG, "Internet connection lost.");
+                internetAvailable = false;
+            }
+
+            @Override
+            public void onAvailable(@NonNull Network network) {
+                super.onAvailable(network);
+                Log.i(TAG, "Internet connection obtained.");
+                internetAvailable = true;
+            }
+        });
+    }
+
     public List<LocationEntity> allLocations(){
         return locationDao.getAll();
     }
@@ -76,6 +114,18 @@ public class LocationLoggingService extends Service implements LocationListener
         locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
     }
 
+    @SuppressLint("MissingPermission")
+    public Location getLastKnownLocation(){
+        LocationManager locationManager = (LocationManager) getSystemService(Service.LOCATION_SERVICE);
+        return locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
+    }
+
+    public void sendLastKnownLocationToTelegram(){
+        Location lastKnownLocation = getLastKnownLocation();
+        this.lastLocation = lastKnownLocation;
+        sendLocationToTelegram(lastKnownLocation);
+    }
+
     @Override
     public void onDestroy() {
         Log.d(TAG, "Service has been destroyed.");
@@ -88,8 +138,72 @@ public class LocationLoggingService extends Service implements LocationListener
         super.onCreate();
     }
 
+    private void updateLocation(Location newLocation){
+
+        if(lastLocation != null)
+        {
+            if(newLocation.distanceTo(lastLocation) < metersDistanceBetweenTelegramUpdates) {
+                Log.d(TAG, "Distance to last location too short. Ignoring.");
+                return;
+            }
+
+            long oldTime = lastLocation.getTime();
+            long newTime = newLocation.getTime();
+
+            if(oldTime > newTime)
+            {
+                Log.w(TAG, "Last location time was somehow after new location's.");
+                return;
+            }
+
+            long millisSinceLastUpdate = newTime - oldTime;
+            if(durationBetweenTelegramUpdates.toMillis() > millisSinceLastUpdate)
+            {
+                Log.d(TAG, "Location update is too recent.");
+                return;
+            }
+        }
+
+        if(!newLocation.hasAccuracy())
+        {
+            Log.d(TAG, "New location does not have accuracy. Ignoring it.");
+            return;
+        }
+
+        if(newLocation.getAccuracy() > 100)
+        {
+            Log.d(TAG, "New location's accuracy is above 100 meters. Ignoring it.");
+            return;
+        }
+
+        lastLocation = newLocation;
+        sendLocationToTelegram(lastLocation);
+    }
+
+    public void sendLocationToTelegram(Location location) {
+        if(!internetAvailable)
+        {
+            Log.i(TAG, "Internet is not available.");
+            return;
+        }
+
+        String botToken = getResources().getString(R.string.telegramToken);
+        String telegramChat = getResources().getString(R.string.telegramChat);
+        TelegramBot bot = new TelegramBot(botToken);
+
+        Log.i(TAG, "Sending to telegram.");
+        new Thread(()->{
+            bot.execute(new SendLocation(telegramChat,
+                    Double.valueOf(location.getLatitude()).floatValue(),
+                    Double.valueOf(location.getLongitude()).floatValue()
+            ));
+        }).start();
+    }
+
     @Override
     public void onLocationChanged(@NonNull Location location) {
+        updateLocation(location);
+
         new Thread(()->{
             Log.d(TAG, String.format(
                     "New location. Latitude: %s Longitude: %s Altitude: %s",

app/src/main/java/com/proculite/logmylocation/LocationLoggingServiceBinder.java

@@ -23,4 +23,8 @@ public class LocationLoggingServiceBinder extends Binder {
     public List<LocationEntity> allLocations(){
         return this.service.allLocations();
     }
+
+    public void sendLastKnownLocationToTelegram(){
+        this.service.sendLastKnownLocationToTelegram();
+    }
 }

app/src/main/java/com/proculite/logmylocation/MainActivity.java

@@ -32,6 +32,7 @@ import io.jenetics.jpx.WayPoint;
 public class MainActivity extends AppCompatActivity implements LocationListener, ServiceConnection {
     private final String TAG = MainActivity.class.getName();
     private Button exportButton;
+    private Button sendTelegramButton;
     private WriteToFile writeToFile;
     private static boolean includeComments = false;
     private static Double accuracyThreshold = 2.0;
@@ -54,6 +55,7 @@ public class MainActivity extends AppCompatActivity implements LocationListener,
         });
 
         exportButton = findViewById(R.id.buttonExport);
+        sendTelegramButton = findViewById(R.id.buttonSendTelegram);
     }
 
     @Override
@@ -89,6 +91,12 @@ public class MainActivity extends AppCompatActivity implements LocationListener,
         LocationLoggingServiceBinder binder = (LocationLoggingServiceBinder) iBinder;
         binder.subscribeToLocationUpdates(this);
 
+        if(sendTelegramButton != null){
+            sendTelegramButton.setOnClickListener(v -> {
+                binder.sendLastKnownLocationToTelegram();
+            });
+        }
+
         if(exportButton != null){
             exportButton.setOnClickListener(v -> {
                 Log.d(TAG, "Export button clicked.");

app/src/main/res/layout/activity_main.xml

@@ -26,5 +26,13 @@
         android:text="Export"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
+    <Button
+        android:id="@+id/buttonSendTelegram"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintTop_toBottomOf="@+id/buttonExport"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        android:text="Send to telegram" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>