Vfrdtyky

I want to find the current location of the user through my app and I copied the source code from Github and I don't know it does not give me any error but this one.
Here's my code with all the libraries in case you think I have missed a library.

import com.google.android.gms.maps.GoogleMap;

import com.google.android.gms.maps.GoogleMap.OnMyLocationButtonClickListener;

import com.google.android.gms.maps.OnMapReadyCallback;

import com.google.android.gms.maps.SupportMapFragment;



import android.Manifest;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.support.annotation.NonNull;

import android.support.v4.app.ActivityCompat;

import android.support.v4.content.ContextCompat;

import android.support.v7.app.AppCompatActivity;

import android.widget.Toast;



public class location extends AppCompatActivity

        implements

        OnMyLocationButtonClickListener,

        OnMapReadyCallback,

        ActivityCompat.OnRequestPermissionsResultCallback {



    /**

     * Request code for location permission request.

     *

     * @see #onRequestPermissionsResult(int, String, int)

     */

    private static final int LOCATION_PERMISSION_REQUEST_CODE = 1;



    /**

     * Flag indicating whether a requested permission has been denied after returning in

     * {@link #onRequestPermissionsResult(int, String, int)}.

     */

    private boolean mPermissionDenied = false;



    private GoogleMap mMap;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_location);



        SupportMapFragment mapFragment =

                (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

        mapFragment.getMapAsync(this);

    }



    @Override

    public void onMapReady(GoogleMap map) {

        mMap = map;



        mMap.setOnMyLocationButtonClickListener(this);

        enableMyLocation();

    }



    /**

     * Enables the My Location layer if the fine location permission has been granted.

     */

    private void enableMyLocation() {

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)

                != PackageManager.PERMISSION_GRANTED) {

            // Permission to access the location is missing.

            PermissionUtils.requestPermission(this, LOCATION_PERMISSION_REQUEST_CODE,

                    Manifest.permission.ACCESS_FINE_LOCATION, true);

        } else if (mMap != null) {

            // Access to the location has been granted to the app.

            mMap.setMyLocationEnabled(true);

        }

    }



    @Override

    public boolean onMyLocationButtonClick() {

        Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT).show();

        // Return false so that we don't consume the event and the default behavior still occurs

        // (the camera animates to the user's current position).

        return false;

    }





    @Override

    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions,

                                           @NonNull int grantResults) {

        if (requestCode != LOCATION_PERMISSION_REQUEST_CODE) {

            return;

        }



        if (PermissionUtils.isPermissionGranted(permissions, grantResults,

                Manifest.permission.ACCESS_FINE_LOCATION)) {

            // Enable the my location layer if the permission has been granted.

            enableMyLocation();

        } else {

            // Display the missing permission error dialog when the fragments resume.

            mPermissionDenied = true;

        }

    }



    @Override

    protected void onResumeFragments() {

        super.onResumeFragments();

        if (mPermissionDenied) {

            // Permission was not granted, display error dialog.

            showMissingPermissionError();

            mPermissionDenied = false;

        }

    }



    /**

     * Displays a dialog with error message explaining that the location permission is missing.

     */

    private void showMissingPermissionError() {

        PermissionUtils.PermissionDeniedDialog

                .newInstance(true).show(getSupportFragmentManager(), "dialog");

    }



}

This is because your sample code is part of a tutorial and is still missing a helper class.

Here is the PermissionUtils code located in GitHub in the same project.