Develop Reference

The method fromPixels(int, int) is undefined for the type Projection & The method getLatitudeE6() is undefined for the type GeoPoint

It is not working on fromPixels() & on getLatitudeE6() *getLongitudeE6()* at
public boolean onTouchEvent(MotionEvent event, MapView mapView)
method,which is situated at the last portion of this code.Can any one help plz.....
package com.mamun.tasktest;
import java.io.IOException;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapActivity<GeoPoint, OverlayItem> extends Activity implements
GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener, LocationListener {
private LocationManager manager;
private TextView tvAddress;
private Button btnSearch;
private EditText etSearch;
private LocationClient locationClient;
private GoogleMap googleMap;
private MapFragment mapFragment;
//private GeoPoint p;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map);
manager = (LocationManager) getSystemService(LOCATION_SERVICE);
tvAddress = (TextView) findViewById(R.id.tvaddress);
btnSearch = (Button) findViewById(R.id.btnSearch);
etSearch = (EditText) findViewById(R.id.etSearch);
mapFragment = (MapFragment) getFragmentManager().findFragmentById(
R.id.maps);
googleMap = mapFragment.getMap();
locationClient = new LocationClient(this, this, this);
}
public void onSearch(View v) {
// Getting user input location
String location = etSearch.getText().toString();
if (location != null && !location.equals("")) {
new GeocoderTask().execute(location);
}
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
locationClient.connect();
}
#Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
locationClient.disconnect();
}
#Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
}
#Override
public void onConnectionFailed(ConnectionResult result) {
}
#Override
public void onConnected(Bundle connectionHint) {
try {
Location currentLocation = locationClient.getLastLocation();
double lat = currentLocation.getLatitude();
double lng = currentLocation.getLongitude();
// txtLocation.setText(lat + ", " + lng);
Geocoder geocoder = new Geocoder(this);
ArrayList<Address> address = (ArrayList<Address>) geocoder
.getFromLocation(currentLocation.getLatitude(),
currentLocation.getLongitude(), 5);
Address addr = address.get(0);
String currentAddress = (addr.getAddressLine(0) + "-"
+ addr.getAdminArea() + "-" + addr.getLocality() + "-"
+ addr.getPostalCode() + "-" + addr.getCountryCode());
MarkerOptions options = new MarkerOptions();
options.position(new LatLng(lat, lng));
options.title(currentAddress);
options.snippet("Current location");
options.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_AZURE));
if (googleMap != null) {
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(
new LatLng(lat, lng), 14.0f));
googleMap.addMarker(options);
} else {
Toast.makeText(getApplicationContext(), "Map is null",
Toast.LENGTH_LONG).show();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
#Override
public void onDisconnected() {
// TODO Auto-generated method stub
}
// An AsyncTask class for accessing the GeoCoding Web Service
private class GeocoderTask extends
AsyncTask<String, Void, ArrayList<Address>> {
#Override
protected ArrayList<Address> doInBackground(String... locationName) {
// Creating an instance of Geocoder class
Geocoder geocoder = new Geocoder(getBaseContext());
ArrayList<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input text
addresses = (ArrayList<Address>) geocoder.getFromLocationName(
locationName[0], 3);
} catch (IOException e) {
e.printStackTrace();
}
return addresses;
}
#Override
protected void onPostExecute(ArrayList<Address> addresses) {
if (addresses == null || addresses.size() == 0) {
Toast.makeText(getBaseContext(), "No Location found",
Toast.LENGTH_SHORT).show();
return;
}
// Clears all the existing markers on the map
googleMap.clear();
// Adding Markers on Google Map for each matching address
for (int i = 0; i < addresses.size(); i++) {
Address address = (Address) addresses.get(i);
// Creating an instance of GeoPoint, to display in Google Map
LatLng latLng;
latLng = new LatLng(address.getLatitude(),
address.getLongitude());
String addressText = String.format(
"%s, %s",
address.getMaxAddressLineIndex() > 0 ? address
.getAddressLine(0) : "", address
.getCountryName());
MarkerOptions markerOptions = new MarkerOptions();
// markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title(addressText);
googleMap.addMarker(markerOptions);
// Locate the first location
if (i == 0)
googleMap.animateCamera(CameraUpdateFactory
.newLatLng(latLng));
}
}
}
public class AddItemizedOverlay extends ItemizedOverlay<OverlayItem> {
/*................. Add this method ........*/
public boolean onTouchEvent(MotionEvent event, MapView mapView)
{
if (event.getAction() == 1) {
GeoPoint geopoint = googleMap.getProjection().fromPixels(
(int) event.getX(),
(int) event.getY());
// latitude
double lat = (geopoint).getLatitudeE6() / 1E6;
// longitude
double lon = (geopoint).getLongitudeE6() / 1E6;
Toast.makeText(getBaseContext(), "Lat: " + lat + ", Lon: "+lon, Toast.LENGTH_SHORT).show();
}
return false;
}
}
}

get address corresponding to lattitude and longitude in google map api v2

Hi in my application i am getting the lattitude and longitude of a location.I want to convert that points into address, when i try to do so iam getting error
java.io.IOException: Service not Available at android.location.Geocoder.getFromLocation(Geocoder.java:136)
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.Menu;
import android.widget.Toast;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.maps.GeoPoint;
public class MapActivity extends FragmentActivity {
private GoogleMap map;
//Location location;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
LocationListener mlocListener = new GpsMapLocationActivity();
mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, mlocListener);
if (map == null) {
map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
map.setMyLocationEnabled(true);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.map, menu);
return true;
}
private class GpsMapLocationActivity implements LocationListener{
#Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
if (location != null) {
/*final GeoPoint point = new GeoPoint(
(int) (location.getLatitude() * 1E6),
(int) (location.getLongitude() * 1E6));*/
/* String address = ConvertPointToLocation(point);address.toString();
Log.i("ADRESSS", ""+point);*/
double latitude=location.getLatitude();
double longitude=location.getLongitude();
LatLng loca=new LatLng(latitude,longitude);
String address = ConvertPointToLocation(loca);
address.toString();
Toast.makeText(getApplicationContext(),"" +loca,
Toast.LENGTH_LONG).show();
Log.i("Adress",""+address);
CameraPosition cmp= new CameraPosition.Builder().target(loca).zoom(14).bearing(90).tilt(30).build();
map.animateCamera(CameraUpdateFactory.newCameraPosition(cmp));
MarkerOptions marker = new MarkerOptions()
.position(loca)
.title("MyMap")
.snippet("My Map View")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_gps));
map.addMarker(marker);
}
}
private String ConvertPointToLocation(LatLng loca) {
// TODO Auto-generated method stub
String address = "";
Geocoder geoCoder=new Geocoder(getBaseContext(), Locale.getDefault());
try {
List<Address> addresses = geoCoder.getFromLocation(
loca.latitude ,
loca.longitude, 1);
if (addresses.size() > 0) {
for (int index = 0;
index < addresses.get(0).getMaxAddressLineIndex(); index++)
address += addresses.get(0).getAddressLine(index) + " ";
}
}
catch (IOException e) {
e.printStackTrace();
}
return address;
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onStatusChanged(String provider, int status,
Bundle extras) {
// TODO Auto-generated method stub
}
}
}
I am tried some codes but the error is repeating
plz help me thanks in advance..

Getting 200 meter distance difference from the current location in GPS with map

This is my Map Activity class and i have to extract the current location lat n long points and have to show them on map.And i also have incorporated a search box which will display the location of an address on map. Its showing the location but at difference of 200 meter. And when i reopen it, it always show the previous traced location or searched location. I want to show the extracted lat n long points on map.Please Help me out. Thanks in advance..
import java.io.IOException;
import java.util.List;
import java.util.Locale;
import android.app.AlertDialog;
import android.graphics.drawable.Drawable;
import android.location.Address;
import android.location.Criteria;
import android.widget.Button;
import android.widget.EditText;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
public class MapViewActivity extends MapActivity implements LocationListener {
private MapView mapView;
Button search;
EditText address;
private LocationManager locationManager;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
search=(Button)findViewById(R.id.find_loc);
address=(EditText)findViewById(R.id.enter_address);
search.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
address=(EditText)findViewById(R.id.enter_address);
if (address.getText().toString().trim().length() == 0) {
showMessage("Error", "Please enter address!");
return;
}
Geocoder geoCoder = new Geocoder(MapViewActivity.this,
Locale.getDefault());
try {
List<Address> addresses = geoCoder.getFromLocationName(
address.getText().toString(), 1);
// Getting latitude
double latitude = addresses.get(0).getLatitude();
// Getting longitude
double longitude = addresses.get(0).getLongitude();
if (addresses.size() > 0) {
GeoPoint p = new GeoPoint(
(int) ( latitude * 1E6),
(int) (longitude * 1E6));
// Getting MapController
MapController mapController =
mapView.getController();
// Locating the Geographical point in the Map
mapController.animateTo(p);
//Applying a zoom
mapController.setZoom(15);
// Redraw the map
mapView.invalidate();
// Getting list of overlays available in the map
List<Overlay> mapOverlays = mapView.getOverlays();
// Creating a drawable object to represent the
image of mark in the map
Drawable drawable =
MapViewActivity.this.getResources().getDrawable(R.drawable.cur_position);
// Creating an instance of ItemizedOverlay to mark
the current location in the map
CurrentLocationOverlay currentLocationOverlay = new
CurrentLocationOverlay(drawable);
// Creating an item to represent a mark in the
overlay
OverlayItem currentLocation = new OverlayItem(p,
"Current Location", "Latitude : " + latitude + ", Longitude:" + longitude);
// Adding the mark to the overlay
currentLocationOverlay.addOverlay(currentLocation);
// Clear Existing overlays in the map
mapOverlays.clear();
// Adding new overlay to map overlay
mapOverlays.add(currentLocationOverlay);
}
} catch (IOException e) {
e.printStackTrace();
}
catch(Exception e)
{
showMessage("Error", "Address not found!");
e.printStackTrace();
}
}
});
// Getting reference to MapView
mapView = (MapView) findViewById(R.id.map_view);
// Setting Zoom Controls on MapView
mapView.setBuiltInZoomControls(true);
// Getting LocationManager object from System Service LOCATION_SERVICE
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// Creating a criteria object to retrieve provider
//Criteria criteria = new Criteria();
final Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
// Getting the name of the best provider
String provider = locationManager.getBestProvider(criteria, true);
// Getting Current Location
Location location = locationManager.getLastKnownLocation(provider);
if(location!=null){
onLocationChanged(location);
}
locationManager.requestLocationUpdates(provider, 20000, 0, this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
#Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
#Override
public void onBackPressed() {
finish();
}
#Override
public void onDestroy() {
if (locationManager != null) {
locationManager.removeUpdates(this);
}
super.onDestroy();
}
#Override
public void onLocationChanged(Location location) {
// Getting latitude
double latitude = location.getLatitude();
// Getting longitude
double longitude = location.getLongitude();
// Setting latitude and longitude in the TextView tv_location
//tvLocation.setText("Latitude:" + latitude + ", Longitude:"+ longitude
);
// Creating an instance of GeoPoint corresponding to latitude and longitude
GeoPoint point = new GeoPoint((int)(latitude * 1E6), (int)(longitude*1E6));
// Getting MapController
MapController mapController = mapView.getController();
// Locating the Geographical point in the Map
mapController.animateTo(point);
// Applying a zoom
mapController.setZoom(15);
// Redraw the map
mapView.invalidate();
// Getting list of overlays available in the map
List<Overlay> mapOverlays = mapView.getOverlays();
// Creating a drawable object to represent the image of mark in the map
Drawable drawable =
this.getResources().getDrawable(R.drawable.cur_position);
// Creating an instance of ItemizedOverlay to mark the current location in
the map
CurrentLocationOverlay currentLocationOverlay = new
CurrentLocationOverlay(drawable);
// Creating an item to represent a mark in the overlay
OverlayItem currentLocation = new OverlayItem(point, "Current Location",
"Latitude : " + latitude + ", Longitude:" + longitude);
// Adding the mark to the overlay
currentLocationOverlay.addOverlay(currentLocation);
// Clear Existing overlays in the map
mapOverlays.clear();
// Adding new overlay to map overlay
mapOverlays.add(currentLocationOverlay);
}
private void showMessage(final String title, final String message) {
runOnUiThread(new Runnable() {
public void run() {
AlertDialog.Builder alert = new AlertDialog.Builder(MapViewActivity.this);
alert.setTitle(title);
alert.setPositiveButton("OK", null);
alert.setMessage(message);
alert.show();
}
});
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
and this is my CurrentLocationOverlay class
package com.ceolution.bhinstitute.crm;
import java.util.ArrayList;
import android.graphics.drawable.Drawable;
import android.util.Log;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.OverlayItem;
public class CurrentLocationOverlay extends ItemizedOverlay<OverlayItem> {
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
public CurrentLocationOverlay(Drawable defaultMarker) {
super(boundCenterBottom(defaultMarker));
}
// Executed, when populate() method is called
#Override
protected OverlayItem createItem(int arg0) {
return mOverlays.get(arg0);
}
#Override
public int size() {
return mOverlays.size();
}
public void addOverlay(OverlayItem overlay){
mOverlays.add(overlay);
populate(); // Calls the method createItem()
}
#Override
protected boolean onTap(int arg0) {
Log.d("Tapped", mOverlays.get(arg0).getSnippet());
return true;
}
}

// Getting LocationManager object from System Service LOCATION_SERVICE
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
String provider;
if(!isGPSEnabled)
{
provider = LocationManager.NETWORK_PROVIDER;
}
else
provider=LocationManager.GPS_PROVIDER;
locationManager.requestLocationUpdates(provider, 20000, 0, this);
use above code after
// Setting Zoom Controls on MapView
mapView.setBuiltInZoomControls(true);
hope this will help and also you can give alert to user to enable gps.

Requesting Location updates in oncreate method

I am trying to implement a location alarm kind of application.
But whenever my application opens. my current location shows as null.
Below is my code.
package com.hrupin;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class HelloAndroidGpsActivity extends Activity implements OnClickListener, android.content.DialogInterface.OnClickListener, LocationListener {
private TextView setLat, setLong, destLat, destLong, currLat, currLong, tjd, fromhome, toward;
private Button setmyLoc, setDest;
private EditText editLat, editLong;
private LocationManager orgManager;
//private LocationListener orgListener;
// private LocationListener destListener = new destListener();
private boolean gps_enabled = false;
private boolean network_enabled = false;
private String bestProvider;
double orginLongitude, orginLatitude, destLongtitude, destLatitude, currLatitude, currLongtitude;
float firstLat, firstLang, secLat, secLang;
Location destinationLocation = new Location("gps");
Location originLocation = new Location("gps");
Location currLocation = new Location("gps");
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setLat = (TextView) findViewById(R.id.setLat);
setLong = (TextView) findViewById(R.id.setLong);
destLat = (TextView) findViewById(R.id.destLat);
destLong = (TextView) findViewById(R.id.destLong);
currLat = (TextView) findViewById(R.id.currLat);
currLong = (TextView)findViewById(R.id.currLong);
tjd = (TextView)findViewById(R.id.setmeter);
fromhome = (TextView)findViewById(R.id.destmeter);
toward = (TextView)findViewById(R.id.currmeter);
setDest = (Button)findViewById(R.id.SetLocation);
editLat = (EditText)findViewById(R.id.editLat);
editLong = (EditText)findViewById(R.id.editLong);
orgManager = (LocationManager)this.getSystemService(Context.LOCATION_SERVICE);
try {
gps_enabled = orgManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch (Exception ex) {
Log.i("gps_enabled", ex.toString());
}
try {
network_enabled = orgManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
} catch (Exception ex) {
Log.i("network_enabled", ex.toString());
}
// don't start listeners if no provider is enabled
if (!gps_enabled && !network_enabled) {
AlertDialog.Builder builder = new Builder(
HelloAndroidGpsActivity.this);
builder.setTitle("Attention!");
builder.setMessage("Sorry, location is not determined. Please enable location providers");
builder.setPositiveButton("OK",
HelloAndroidGpsActivity.this);
builder.setNeutralButton("Cancel",
HelloAndroidGpsActivity.this);
builder.create().show();
}
Criteria criteria = new Criteria();
bestProvider = orgManager.getBestProvider(criteria, false);
orgManager.requestLocationUpdates(bestProvider, 0, 0, this);
Location location = orgManager.getLastKnownLocation(bestProvider);
if (location!=null){
setLat.setText("Latitude:" + currLatitude);
setLong.setText("Longitude:" + currLongtitude);
originLocation.setLatitude(currLatitude);
originLocation.setLongitude(currLongtitude);
}
//else Toast.makeText(getBaseContext(), "Error in GPS", Toast.LENGTH_SHORT).show();
setDest.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
destLat.setText("Lat:"+editLat.getText().toString().trim());
destLong.setText("Long"+editLong.getText().toString().trim());
destLatitude = Double.parseDouble(String.valueOf(editLat.getText().toString().trim()));
destLongtitude = Double.parseDouble(String.valueOf(editLong.getText().toString().trim()));
destinationLocation.setLatitude(destLatitude);
destinationLocation.setLongitude(destLongtitude);
float distance = originLocation.distanceTo(destinationLocation);
tjd.setText(String.valueOf(distance/1000)+ " Kms ");
}
});
}
/** Register for the updates when Activity is in foreground */
#Override
protected void onResume() {
super.onResume();
orgManager.requestLocationUpdates(bestProvider, 60000, 1, this);
}
/** Stop the updates when Activity is paused */
#Override
protected void onPause() {
super.onPause();
orgManager.removeUpdates(this);
}
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_NEUTRAL) {
setLat.setText("Sorry, location is not determined. To fix this please enable location providers");
} else if (which == DialogInterface.BUTTON_POSITIVE) {
startActivity(new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
}
public void onClick(View v) {
// TODO Auto-generated method stub
}
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
if (location != null) {
// This needs to stop getting the location data and save the
// battery power.
//orgManager.removeUpdates(orgListener);
currLatitude = location.getLatitude();
currLongtitude = location.getLongitude();
currLocation.setLatitude(currLatitude);
currLocation.setLongitude(currLongtitude);
currLat.setText(String.valueOf(currLatitude));
currLong.setText(String.valueOf(currLongtitude));
float fromhome = originLocation.distanceTo(currLocation);
float toward = currLocation.distanceTo(destinationLocation);
HelloAndroidGpsActivity.this.fromhome.setText(String.valueOf(fromhome/1000)+ " Kms ");
HelloAndroidGpsActivity.this.toward.setText(String.valueOf(toward/1000) + " Kms ");
if (toward/1000 <= 14 ){
Toast.makeText(getBaseContext(), "You are "+ toward/1000 + " Kms towards Destination ", Toast.LENGTH_SHORT).show();
}
}
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
I know this kind of question has been million times. I have tried all methods which has been specified in answers. But i havent got any output. Please help.

You should not call requestLocationUpdates on onCreate as it is redundant since your code will call it on onResume. The flow is onCreate --> onStart --> onResume.

To get Current Location, this is working pretty fine with me check this out.
our Activity is like this
public class MainActivity extends Activity implements OnClickListener, android.content.DialogInterface.OnClickListener {
/** Called when the activity is first created. */
private EditText showLocation;
private Button btnGetLocation;
private ProgressBar progress;
private LocationManager locManager;
private LocationListener locListener = new myLocationListener();
private boolean gps_enabled = false;
private boolean network_enabled = false;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
showLocation = (EditText) findViewById(R.id.txtShowLoc);
showLocation.setEnabled(false);
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setVisibility(View.GONE);
btnGetLocation = (Button) findViewById(R.id.btnGetLoc);
btnGetLocation.setOnClickListener(this);
locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
progress.setVisibility(View.VISIBLE);
try{
gps_enabled = locManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
}
catch(Exception ex){
}
try{
network_enabled = locManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}
catch(Exception ex){
}
if (!gps_enabled && !network_enabled) {
AlertDialog.Builder builder = new Builder(this);
builder.setTitle("Attention!");
builder.setMessage("Sorry, location is not determined. Please enable location providers");
builder.setPositiveButton("OK", this);
builder.setNeutralButton("Cancel", this);
builder.create().show();
progress.setVisibility(View.GONE);
}
if (gps_enabled) {
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locListener);
}
if (network_enabled) {
locManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locListener);
}
}
private class myLocationListener implements LocationListener{
#Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
if(location!=null){
locManager.removeUpdates(locListener);
String Speed = "Device Speed: " +location.getSpeed();
String longitude = "Longitude: " +location.getLongitude();
String latitude = "Latitude: " +location.getLatitude();
String altitiude = "Altitiude: " + location.getAltitude();
String accuracy = "Accuracy: " + location.getAccuracy();
String time = "Time: " + location.getTime();
String cityName=null;
Geocoder gcd = new Geocoder(getBaseContext(), Locale.getDefault());
//public List<Address> addresses= gcd.getFromLocation (double latitude1, double longitude1, int maxResults)
List<Address> addresses;
try {
addresses = gcd.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
if (addresses.size() > 0)
System.out.println(addresses.get(0).getLocality());
cityName=addresses.get(0).getLocality();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
showLocation.setText("City Name: "+cityName+"\n"+Speed + "\n"+longitude + "\n" + latitude + "\n" + altitiude + "\n" + accuracy + "\n" + time);
progress.setVisibility(View.GONE);
}
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
if(which == DialogInterface.BUTTON_NEUTRAL){
showLocation.setText("location is not getting due to location provider");
}
else if (which == DialogInterface.BUTTON_POSITIVE){
startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
}}
and main.xml is
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weightSum="1">
<TextView android:id="#+id/textView1" android:layout_width="match_parent" android:text="My Location is:" android:textSize="25sp" android:layout_height="wrap_content"></TextView>
<EditText android:layout_height="wrap_content" android:layout_width="match_parent" android:layout_weight="0.24" android:lines="5" android:id="#+id/txtShowLoc">
<requestFocus></requestFocus>
</EditText>
<LinearLayout android:id="#+id/linearLayout2" android:layout_height="wrap_content" android:layout_width="match_parent" android:gravity="center">
<ProgressBar android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="#+id/progressBar"></ProgressBar>
</LinearLayout>
<LinearLayout android:id="#+id/linearLayout1" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center">
<Button android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="Get Current Location" android:id="#+id/btnGetLoc"></Button>
</LinearLayout>
and my manifest file is
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="rdc.getCurrentLocaion"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
<application android:icon="#drawable/icon" android:label="#string/app_name" android:debuggable="true">
<activity android:name=".MainActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
let me know if you get any trouble!!

#Ramdhan Thanks for your code. But i corrected a mistake made in my code.
Criteria criteria = new Criteria();
bestProvider = orgManager.getBestProvider(criteria, false);
orgManager.requestLocationUpdates(bestProvider, 0, 0, this);
Location location = orgManager.getLastKnownLocation(bestProvider);
if (location!=null){
setLat.setText("Latitude:" + currLatitude);
setLong.setText("Longitude:" + currLongtitude);
originLocation.setLatitude(currLatitude);
originLocation.setLongitude(currLongtitude);
}
Cheanged code:
if (location != null) {
setLat.setText("Latitude:" + location.getLatitude());
setLong.setText("Longitude:" + location.getLongitude());
originLocation.setLatitude(location.getLatitude());
originLocation.setLongitude(location.getLongitude());
}

Android: Map Controler's animateTo method doesn't work properly

I'm trying to animate a new location on the map when the location changed (or when I supply a mock location via the telnet)
this is what I use
Toast.makeText(getApplicationContext(), "New Lontitue = "+ lontitue +"\n New Latitute = "+ latitute, Toast.LENGTH_LONG).show();
GeoPoint geopoint = new GeoPoint(latitute, lontitue);
mapController.animateTo(geopoint);
Though the Toast shows the lontitute and latitute properly, app doesn't animate to given cordinates. What could be the problem?? Please find my whole code below.
package com.mayuonline.androidgps;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.Toast;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
public class GPSActivity extends MapActivity {
MapController mapController;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// setting up map
MapView mapview = (MapView)findViewById(R.id.mapview);
mapview.setBuiltInZoomControls(true);
mapController = mapview.getController();
// mapController.setZoom(16);
LocationManager locationManager = (LocationManager)getSystemService(LOCATION_SERVICE);
LocationListener locationListener = new LocationListener() {
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onLocationChanged(Location location) {
makeUseOfNewLocation(location);
//Toast.makeText(getApplicationContext(), "New Locationdd", Toast.LENGTH_LONG).show();
}
private void makeUseOfNewLocation(Location location) {
double lon = (double)location.getLongitude();
double lat = (double)location.getLatitude();
int lontitue = (int)lon;
int latitute = (int)lat;
Toast.makeText(getApplicationContext(), "New Lontitue = "+ lontitue +"\n New Latitute = "+ latitute, Toast.LENGTH_LONG).show();
GeoPoint geopoint = new GeoPoint(latitute, lontitue);
mapController.animateTo(geopoint);
}
};
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,0,locationListener);
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0,0,locationListener);
}
#Override
protected boolean isRouteDisplayed() {
return false;
}
}

I figured out the issue. It is something to do with getLongitude method :)
I need to multiply by 1E6 as given below.
double lon = (double) (location.getLongitude() * 1E6);
double lat = (double) (location.getLatitude() * 1E6);
int lontitue = (int)lon;
int latitute = (int)lat;
Toast.makeText(getApplicationContext(), "New Lontitue = "+ lontitue +"\n New Latitute = "+ latitute, Toast.LENGTH_LONG).show();
GeoPoint geopoint = new GeoPoint(latitute, lontitue);
mapController.animateTo(geopoint);

You need to add mapview.invalidate(); after your mapController.animateTo(geopoint) like this
GeoPoint geopoint = new GeoPoint(latitute, lontitue);
mapController.animateTo(geopoint);
mapview.invalidate();
That should work!