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);
}
}

}
}





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