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In this blog explain how to get location via GPS and Satellite in android.


First you can add some permission in manifest file.




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






activity_main.xml.

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<?xmlversion="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin">




    <TextView



        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#066001"
        android:textSize="20dp"
        android:textStyle="bold"
        android:text="ANDROID BEGINNER POINT " />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Get Location"
        android:id="@+id/btnGPSShowLocation"
        android:textStyle="bold"
        android:layout_margin="10dp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text=" "        android:textStyle="bold"
        android:layout_margin="10dp"
        android:textColor="#e04545"
        android:id="@+id/textlati" />

    <TextView

        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=" "
        android:textColor="#1d30c4"
        android:textStyle="bold"
        android:layout_margin="10dp"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:id="@+id/textlongi"
          />

    <TextView
       android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:layout_margin="10dp"
        android:textColor="#d324d6"
        android:textStyle="bold"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:id="@+id/textalti"
          />

</LinearLayout>


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LocationService.java


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public class LocationService extends Service implements LocationListener {
    boolean isGPSEnabled = false; // flag for GPS satellite status   
    boolean isNetworkEnabled = false; // flag for cellular network status   
    boolean canGetLocation = false; // flag for either cellular or satellite status   
    private final Context mContext;
    protected LocationManager locationManager;
    protected GpsListener gpsListener = new GpsListener();
    Location location; // location    
    private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 0; // 0 meters    
    private static final long MIN_TIME_BW_UPDATES = 1000; //1 second    
    public LocationService(Context context) {
        this.mContext = context;
        getLocation();
    }
    class GpsListener implements GpsStatus.Listener {
        @Override        
        public void onGpsStatusChanged(int event) {
        }
    }
    public Location getLocation() {
        try {
            locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);
            // getting GPS satellite status            
              isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
            // getting cellular network status            
              isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
            if (!isGPSEnabled && !isNetworkEnabled) {
                showSettingsAlert("GPS is not enabled! Want to go to settings menu?");
            } else {
                this.canGetLocation = true;
                if (isNetworkEnabled) {//GPS is enabled, getting lat/long via cellular towers                    locationManager.addGpsStatusListener(gpsListener);//inserted new                    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
                            MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                    Log.d("Cell tower", "Cell tower");
                    if (locationManager != null) {
                        location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                    }
                }
                if (isGPSEnabled) {//GPS is enabled, gettoing lat/long via satellite                    if (location == null) {
                        locationManager.addGpsStatusListener(gpsListener);//inserted new                        locationManager.getGpsStatus(null);
                        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_TIME_BW_UPDATES,
                                MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                        Log.d("GPS Enabled", "GPS Enabled");
                        if (locationManager != null) {
                            location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                        }
                    }
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        return location;
    }
    @Override    
    public void onLocationChanged(Location location) {

    }
    @Override    
     public void onStatusChanged(String provider, int status, Bundle extras) {
    }
    @Override    
    public void onProviderEnabled(String provider) {
    }
    @Override    
    public void onProviderDisabled(String provider) {
    }
    @Nullable    @Override    
     public IBinder onBind(Intent intent) {
        return null;
    }

    public void showSettingsAlert(String provider) {
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);

        alertDialog.setTitle(provider + "SETTINGS");

        alertDialog.setMessage(provider);

        alertDialog.setPositiveButton("Settings",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                        mContext.startActivity(intent);
                    }
                });

        alertDialog.setNegativeButton("Cancel",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.cancel();
                    }
                });

        alertDialog.show();

    }
}

......................................................................................................................................................


MainActivity.java
......................................................................................






public class MainActivity extends Activity {
    Button btnGPSShowLocation;
    LocationService appLocationService;
    TextView textlati, textlongi, textalti;
    Location gpsLocation;
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        appLocationService = new LocationService(this);
        textlati = (TextView) findViewById(R.id.textlati);
        textlongi = (TextView) findViewById(R.id.textlongi);
        textalti = (TextView) findViewById(R.id.textalti);
        btnGPSShowLocation = (Button) findViewById(R.id.btnGPSShowLocation);
        btnGPSShowLocation.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View arg0) {
                 gpsLocation=appLocationService.getLocation();
                 if (gpsLocation != null) {
                    double latitude = gpsLocation.getLatitude();
                    double longitude = gpsLocation.getLongitude();
                    double altitude = gpsLocation.getAltitude();
                    textlati.setText("Latitude : " + latitude + " ");
                    textlongi.setText("Longitude : " + longitude + " ");
                    textalti.setText("Altitude : " + altitude + " ");
                }
            }
        });
    }
}


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