Получение координат устройства

Question

Я пытаюсь отобразить местоположение устройства Android в текстовом виде, нажав кнопку. Программа запускается, но местоположение ищется только в том случае, если местоположение уже было определено из другой программы (например, из карт Google). Проблема в locationManager.getLastKnownLocation? Как тогда выработать такую ​​ситуацию? Постоянное отслеживание размещения не требуется.

MainActivity.java:

import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;    
import android.Manifest;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.provider.Settings;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private static final int REQUEST_LOCATION = 1;
    Button button;
    TextView textView;
    LocationManager locationManager;
    String lattitude,longitude;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ActivityCompat.requestPermissions(this, new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_LOCATION);

        textView = findViewById(R.id.text_location);
        button = findViewById(R.id.button_location);

        button.setOnClickListener(this);

    }

    @Override
    public void onClick(View view) {
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        if (!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            buildAlertMessageNoGps();

        } else if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            getLocation();
        }
    }

    private void getLocation() {
        if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission
                (MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_LOCATION);

        } else {

            Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

            Location location1 = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);

            Location location2 = locationManager.getLastKnownLocation(LocationManager. PASSIVE_PROVIDER);

            if (location != null) {
                double latti = location.getLatitude();
                double longi = location.getLongitude();
                lattitude = String.valueOf(latti);
                longitude = String.valueOf(longi);

                textView.setText("Current coordinates"+ "\n" + "Latitude = " + lattitude
                        + "\n" + "Longitude = " + longitude);

            } else  if (location1 != null) {
                double latti = location1.getLatitude();
                double longi = location1.getLongitude();
                lattitude = String.valueOf(latti);
                longitude = String.valueOf(longi);

                textView.setText("Current coordinates"+ "\n" + "Latitude = " + lattitude
                        + "\n" + "Longitude = " + longitude);


            } else  if (location2 != null) {
                double latti = location2.getLatitude();
                double longi = location2.getLongitude();
                lattitude = String.valueOf(latti);
                longitude = String.valueOf(longi);

                textView.setText("Current coordinates"+ "\n" + "Latitude = " + lattitude
                        + "\n" + "Longitude = " + longitude);

            }else{

                Toast.makeText(this,"Unble to Trace your location",Toast.LENGTH_SHORT).show();

            }
        }
    }

    protected void buildAlertMessageNoGps() {

        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("Please Turn ON your GPS Connection")
                .setCancelable(false)
                .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                    public void onClick(final DialogInterface dialog, final int id) {
                        startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
                    }
                })
                .setNegativeButton("No", new DialogInterface.OnClickListener() {
                    public void onClick(final DialogInterface dialog, final int id) {
                        dialog.cancel();
                    }
                });
        final AlertDialog alert = builder.create();
        alert.show();
    }

}

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/button_location"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="146dp"
        android:text="Местоположение" />

    <TextView
        android:id="@+id/text_location"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:textSize="16sp"/>

</RelativeLayout>

AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

Исходный код: здесь