EnableNetworkLocation.kt

private fun GeofencePickerClick() {
   checkIfUserEnabledLocationNetwork() // don't call it unless you're sure that the user granted location permission
}

    private fun checkIfUserEnabledLocationNetwork() {
        val responseTask = getLocationNetworkTask()!!
        responseTask.addOnSuccessListener { startMapActivity() }
            .addOnFailureListener {
                val apiException = it as ApiException
                when (apiException.statusCode) {
                    CommonStatusCodes.RESOLUTION_REQUIRED -> {
                        try {
                            val exception = it as ResolvableApiException
                            exception.startResolutionForResult(
                                this,
                                NETWORK_LOCATION_REQUEST_CODE
                            )
                        } catch (e: IntentSender.SendIntentException) {
                            longToast(R.string.error_msg)
                        }
                    }
                    LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE -> longToast(R.string.error_msg)
                }
            }
    }

    private fun getLocationNetworkTask(): Task<LocationSettingsResponse>? {
        val locationRequest = LocationRequest().setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
        val settingsRequest = LocationSettingsRequest.Builder()
        settingsRequest.addLocationRequest(locationRequest)
        val client = LocationServices.getSettingsClient(this@AddEditNoteActivity)
        return client.checkLocationSettings(settingsRequest.build())
    }
    
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (resultCode == RESULT_OK && data != null) {
            when (requestCode) {
                NETWORK_LOCATION_REQUEST_CODE -> {
                    val states = LocationSettingsStates.fromIntent(data)
                    if (states.isNetworkLocationPresent) {
                        startMapActivity() // here the Netwok location is available.
                    }
                }
            }
        }
        
         companion object {
        private const val NETWORK_LOCATION_REQUEST_CODE = 33
    }
}