Get Location Using FusedLocationProviderClient Api

Step 1:


Add play services location in build.gradle

compile 'com.google.android.gms:play-services-location:11.4.2'

Step 2:

Add Permission in AndroidManifestFile.xml

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

Step 3 :

package org.pratap.userlocation;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
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.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;

public class MainActivity extends AppCompatActivity {


    /**
     * Represents a geographical location.
     */
    protected Location mLastLocation;

    int REQUEST_PERMISSIONS_REQUEST_CODE = 1001;

    FusedLocationProviderClient mFusedLocationClient;



    private TextView mLatitudeText;
    private TextView mLongitudeText;


    Button btn_getLocation;


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


        mFusedLocationClient = LocationServices.getFusedLocationProviderClient(this);


        btn_getLocation = (Button) findViewById(R.id.btn_get_location);
        mLatitudeText = (TextView) findViewById((R.id.mLatitudeText));
        mLongitudeText = (TextView) findViewById((R.id.mLongitudeText));


        btn_getLocation.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                if (!checkPermissions()) {
                    requestPermissions();
                } else {
                    getLastLocation();
                }


            }
        });

    }


    /**
     * Return the current state of the permissions needed.
     */
    private boolean checkPermissions() {
        int permissionState = ActivityCompat.checkSelfPermission(this,
                Manifest.permission.ACCESS_FINE_LOCATION);
        return permissionState == PackageManager.PERMISSION_GRANTED;
    }


    @SuppressWarnings("MissingPermission")
    private void getLastLocation() {
        mFusedLocationClient.getLastLocation()
                .addOnCompleteListener(this, new OnCompleteListener<Location>() {
                    @Override
                    public void onComplete(@NonNull Task<Location> task) {
                        if (task.isSuccessful() && task.getResult() != null) {

                            mLastLocation = task.getResult();

                            mLatitudeText.setText("Latitude : "+
                                    mLastLocation.getLatitude() + "");
                            mLongitudeText.setText("Longitude : "+
                                    mLastLocation.getLongitude() + "");
                        } else {

                            showMessage("No Location found");

                        }
                    }
                });
    }


    public void showMessage(String message) {
        if (message == null || message.length() == 0)
            return;

        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
    }


    private void requestPermissions() {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            getLastLocation();
        } else {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_PERMISSIONS_REQUEST_CODE);
        }
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {

        if (requestCode == REQUEST_PERMISSIONS_REQUEST_CODE) {
            if (grantResults.length <= 0) {

            } else if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Permission granted.
                getLastLocation();
            } else {
                Intent intent = new Intent();
                intent.setAction(
                        Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                Uri uri = Uri.fromParts("package",
                        BuildConfig.APPLICATION_ID, null);
                intent.setData(uri);
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(intent);
            }
        }

    }
}