Get Current Location example in Android with Marshmallow run time Permission

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

    <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="GET LOCATION" />

    <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="16dp"/>

</RelativeLayout>

MainActivity.java:

package com.chantisandroid.sample;

import android.Manifest;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.location.Location;

import android.location.LocationManager;

import android.provider.Settings;

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.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 = (TextView)findViewById(R.id.text_location);

        button = (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("Your current location is"+ "\n" + "Lattitude = " + 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("Your current location is"+ "\n" + "Lattitude = " + 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("Your current location is"+ "\n" + "Lattitude = " + 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();

    }

}

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.chantisandroid.sample">

    <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" />

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>