Current location Observer

LocationExt

import android.annotation.SuppressLint
import android.app.Activity
import android.location.Location
import android.os.Looper
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
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

private val currentLocation: MutableLiveData<Location> by lazy { MutableLiveData<Location>() }

@SuppressLint("MissingPermission")
fun LifecycleOwner.startLocationUpdates(activity:Activity): LiveData<Location> {

    if(activity.GpsEnabled()){
        //To avoid multi observables from HomeActivity.
        currentLocation.removeObservers(this)

        LocationServices.getFusedLocationProviderClient(activity)
            .requestLocationUpdates(getLocationRequest(),
                object : LocationCallback() {
                    @SuppressLint("MissingPermission")
                    override fun onLocationResult(p0: LocationResult?) {
                        super.onLocationResult(p0)
                        val location: Location? = p0?.lastLocation
                        if (location != null) {
                            if (currentLocation.value != null &&
                                currentLocation.value!!.distanceTo(location) < 10)
                                return

                            currentLocation.postValue(location)
                        }
                    }
                },
                Looper.getMainLooper())
    }else{
        Toast.makeText(this, "Enable your gps to continue", Toast.LENGTH_SHORT).show()
        activity.GpsNotEnapled()
    }
    return currentLocation
}

private fun getLocationRequest(): LocationRequest = LocationRequest
    .create().apply {
        interval = 6000
        fastestInterval = 4000
        priority = LocationRequest.PRIORITY_HIGH_ACCURACY
    }

fun Context.GpsEnabled(): Boolean {
    val locationManager: LocationManager? = getSystemService(
        LOCATION_SERVICE
    ) as LocationManager?
    return locationManager?.isProviderEnabled(LocationManager.GPS_PROVIDER)!!
}

fun Context.GpsNotEnapled(){
    val callGPSSettingIntent = Intent(
        Settings.ACTION_LOCATION_SOURCE_SETTINGS
    )
    startActivity(callGPSSettingIntent)
    Toast.makeText(this, "Enable your gps to continue", Toast.LENGTH_SHORT).show()
}