Added location functionalities.

Author: Bene0202

app/src/main/java/com/nlinterface/utility/LocationGetter.kt

@@ -0,0 +1,66 @@
+package com.nlinterface.utility
+
+import android.app.Service
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.IBinder
+import android.util.Log
+import androidx.core.app.ActivityCompat
+import com.google.android.gms.location.FusedLocationProviderClient
+import com.google.android.gms.location.LocationCallback
+import com.google.android.gms.location.LocationRequest
+import com.google.android.gms.location.LocationResult
+import com.google.android.gms.location.LocationServices
+import com.google.android.gms.location.Priority
+
+class LocationGetter: Service() {
+
+    private lateinit var fusedLocationClient: FusedLocationProviderClient
+    private lateinit var locationCallback: LocationCallback
+    private val globalParameters = GlobalParameters.instance!!
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+
+        fusedLocationClient = LocationServices.getFusedLocationProviderClient(this)
+        setupLocationCallback()
+        startLocationUpdates()
+
+        return START_STICKY
+    }
+
+    private fun setupLocationCallback() {
+        locationCallback = object : LocationCallback() {
+            override fun onLocationResult(locationResult: LocationResult) {
+                if (locationResult.locations.isNotEmpty()) {
+                    globalParameters.location = locationResult.lastLocation!!
+                    Log.i("CurrentLocation", "The current location is:" +
+                            "${globalParameters.location.latitude}, " +
+                            "${globalParameters.location.longitude}")
+                }
+            }
+        }
+    }
+
+    private fun startLocationUpdates() {
+        if (ActivityCompat.checkSelfPermission(this,
+                android.Manifest.permission.ACCESS_FINE_LOCATION)
+            == PackageManager.PERMISSION_GRANTED) {
+            val locationRequest = LocationRequest.Builder(
+                Priority.PRIORITY_LOW_POWER, 10000
+            ).apply {
+                setMinUpdateIntervalMillis(5000)
+            }.build()
+            fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback, null)
+        }
+    }
+
+    override fun onBind(intent: Intent?): IBinder? {
+        return null
+    }
+
+    override fun onDestroy() {
+        fusedLocationClient.removeLocationUpdates(locationCallback)
+        Log.i("Location", "Accessing the location was stopped")
+        super.onDestroy()
+    }
+}