I know that my question is silly, but i'm a bit confused with Intents.From the code below i want to separate it in two classes ShowMap and LocationMap.How can i do this??The fist to contain only the map(FragmentActivity), from where i call the second class in which i want to find the user's current location and return the marker to the map(first activity).Thanks in advance!Here is the class which i want to separate:
public class LocationMap extends FragmentActivity implements LocationListener{
private GoogleMap googleMap;
private LatLng latLng;
TextView tvLocation;
MarkerOptions markerOptions;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.location_maps);
// Getting Google Play availability status
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
// Showing status
if(status!=ConnectionResult.SUCCESS){ // Google Play Services are not available
int requestCode = 10;
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);
dialog.show();
}else { // Google Play Services are available
// Getting reference to the SupportMapFragment of activity_main.xml
SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
// Getting GoogleMap object from the fragment
googleMap = fm.getMap();
//setting zoomIn-zoomOut bar in the screen
googleMap.getUiSettings().setZoomControlsEnabled(true);
// Enabling MyLocation Layer of Google Map
googleMap.setMyLocationEnabled(true);
//googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
// Getting LocationManager object from System Service LOCATION_SERVICE
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// Creating a criteria object to retrieve provider
Criteria criteria = new Criteria();
// 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);
new ReverseGeocodingTask(getBaseContext()).execute(latLng);
}
locationManager.requestLocationUpdates(provider, 20000, 0, this);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.location_maps, menu);
// Associate searchable configuration with the SearchView
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.action_search)
.getActionView();
searchView.setSearchableInfo(searchManager
.getSearchableInfo(getComponentName()));
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Take appropriate action for each action item click
switch (item.getItemId()) {
case R.id.action_search:
return true;
case R.id.menu_settings:
// refresh
return true;
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onLocationChanged(Location location) {
googleMap.clear();
// Getting latitude of the current location
double latitude = location.getLatitude();
// Getting longitude of the current location
double longitude = location.getLongitude();
// Creating a LatLng object for the current location
latLng = new LatLng(latitude, longitude);
// Showing the current location in Google Map
googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
// Zoom in the Google Map
googleMap.animateCamera(CameraUpdateFactory.zoomTo(10));
markerOptions = new MarkerOptions();
// Setting the position for the marker
markerOptions.position(latLng);
// Executing ReverseGeocodingTask to get Address
new ReverseGeocodingTask(getBaseContext()).execute(latLng);
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText( getApplicationContext(),
"Gps Disabled",Toast.LENGTH_SHORT ).show();
}
#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
}
private class ReverseGeocodingTask extends AsyncTask<LatLng, Void, String>{
Context mContext;
public ReverseGeocodingTask(Context context){
super();
mContext = context;
}
// Finding address using reverse geocoding
#Override
protected String doInBackground(LatLng... params) {
Geocoder geocoder = new Geocoder(mContext);
double latitude = params[0].latitude;
double longitude = params[0].longitude;
List<Address> addresses = null;
String addressText="";
try {
addresses = geocoder.getFromLocation(latitude, longitude,1);
} catch (IOException e) {
e.printStackTrace();
}
if(addresses != null && addresses.size() > 0 ){
Address address = addresses.get(0);
addressText = String.format("%s, %s, %s",
address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",
address.getLocality(),
address.getCountryName());
}
return addressText;
}
#Override
protected void onPostExecute(String addressText) {
TextView tvLocation = (TextView) findViewById(R.id.tv_location);
Log.v ("4",addressText );
tvLocation.setText(addressText);
// Setting the title for the marker.
markerOptions.title(addressText);
googleMap.addMarker(markerOptions);
}
}
} }
Related
I want to add marker on map with long click. but it is not working. normal click is working.
This is my code.
public class Map extends FragmentActivity implements LocationListener {
GoogleMap googleMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//show error dialog if GoolglePlayServices not available
if (!isGooglePlayServicesAvailable()) {
finish();
}
setContentView(R.layout.map);
SupportMapFragment supportMapFragment =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.googleMap);
// Getting GoogleMap object from the fragment
googleMap = supportMapFragment.getMap();
// Enabling MyLocation Layer of Google Map
googleMap.setMyLocationEnabled(true);
// Getting LocationManager object from System Service LOCATION_SERVICE
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// Creating a criteria object to retrieve provider
Criteria criteria = new Criteria();
// Getting the name of the best provider
String bestProvider = locationManager.getBestProvider(criteria, true);
Location location = locationManager.getLastKnownLocation(bestProvider);
if (location != null) {
onLocationChanged(location);
}
locationManager.requestLocationUpdates(bestProvider, 20000, 0, this);
}
#Override
public void onLocationChanged(Location location) {
TextView locationTv = (TextView) findViewById(R.id.latlongLocation);
// Getting latitude of the current location
double latitude = location.getLatitude();
double longitude = location.getLongitude();
LatLng latLng = new LatLng(latitude, longitude);
googleMap.addMarker(new MarkerOptions().position(latLng).title("you are here" ));
// Showing the current location in Google Map
googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
// Zoom in the Google Map
googleMap.animateCamera(CameraUpdateFactory.zoomTo(5));
// Setting latitude and longitude in the TextView tv_location
locationTv.setText("Latitude:" + latitude + ", Longitude:" + longitude);
}
public void onMapClick (LatLng point) {
// Do Something
googleMap =
((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.googleMap)).getMap();
googleMap.addMarker(new MarkerOptions()
.position(point)
.title("TouchPoint"));
}
public void onMapLongClick(LatLng point) {
googleMap.addMarker(new MarkerOptions().position(point).title(
point.toString()));
Toast.makeText(getApplicationContext(),
"New marker added#" + point.toString(), Toast.LENGTH_LONG)
.show();
}
#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
}
private boolean isGooglePlayServicesAvailable() {
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (ConnectionResult.SUCCESS == status) {
return true;
} else {
GooglePlayServicesUtil.getErrorDialog(status, this, 0).show();
return false;
}
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
}
How can i solve this ?
In onCreate
googleMap.setOnMapLongClickListener(longClickListener);
Inside the activity
private OnMapLongClickListener longClickListener = new OnMapLongClickListener() {
#Override
public void onMapLongClick(LatLng point) {
//do work }
}
I want to display multiply markers using values stored in database.But i can only see ma current location in map. May i know what is the mistake i have committed.
public class MainActivity extends FragmentActivity implements LocationListener {
GoogleMap googleMap;
JSONObject jsonobject;
JSONArray jsonarray;
Float Lati,Longi;
ProgressDialog mProgressDialog;
ArrayList<User> emp;
ArrayList<String> Latitude;
ArrayList<String> Longitude;
ArrayList<HashMap<String, Float>> oslist = new ArrayList<HashMap<String, Float>>();
HashMap<String, Float> map = new HashMap<String, Float>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Getting Google Play availability status
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
// Showing status
if(status!=ConnectionResult.SUCCESS){
int requestCode = 10;
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);
dialog.show();
}else { // Google Play Services are available
// Getting reference to the SupportMapFragment of activity_main.xml
SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
// Getting GoogleMap object from the fragment
googleMap = fm.getMap();
// Enabling MyLocation Layer of Google Map
googleMap.setMyLocationEnabled(true);
// Getting LocationManager object from System Service LOCATION_SERVICE
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// Creating a criteria object to retrieve provider
Criteria criteria = new Criteria();
// Getting the name of the best provider
String provider = locationManager.getBestProvider(criteria, true);
// Getting Current Location
Location location = locationManager.getLastKnownLocation(provider);
new DownJSON().execute();
if(location!=null){
onLocationChanged(location);
}
locationManager.requestLocationUpdates(provider, 20000, 0, this);
}
}
#Override
public void onLocationChanged(Location location) {
TextView tvLocation = (TextView) findViewById(R.id.tv_location);
// Getting latitude of the current location
double latitude = location.getLatitude();
// Getting longitude of the current location
double longitude = location.getLongitude();
// Creating a LatLng object for the current location
LatLng latLng = new LatLng(latitude, longitude);
// Showing the current location in Google Map
googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
// Zoom in the Google Map
googleMap.animateCamera(CameraUpdateFactory.zoomTo(15));
// Setting latitude and longitude in the TextView tv_location
tvLocation.setText("Latitude:" + latitude + ", Longitude:"+ longitude );
}
#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 boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
private class DownJSON extends AsyncTask<Void, Void, Void> {
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
float zoom=0;
emp = new ArrayList<User>();
Log.d("Inside DownJson","DownJson");
jsonobject = JSONParser.getJSONfromURLL("JSON URL");
try {
jsonarray = jsonobject.getJSONArray("User");
Log.d("Latitude",jsonarray.toString());
for (int i = 0; i < jsonarray.length(); i++) {
jsonobject = jsonarray.getJSONObject(i);
User e = new User();
Float Lati =Float.valueOf(jsonobject.optString("Latitude"));
Log.d("Latitude",jsonobject.optString("Latitude"));
Float Longi =Float.valueOf(jsonobject.optString("Longitude"));
Log.d("Latitude",jsonobject.optString("Longitude"));
map.put("lati", Lati);
map.put("longi", Longi);
}
}catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Void args)
{
for (String key : map.keySet()) {
Log.d("LatituInFor",String.valueOf(map.get("lati")));
Log.d("LongInFor",String.valueOf(map.get("longi")));
LatLng pinLocation = new LatLng(Float.valueOf(map.get("longi")),Float.valueOf(map.get("longi")));
Marker storeMarker = googleMap.addMarker(new MarkerOptions()
.position(pinLocation)
);
}
}
private void drawMarker(LatLng point){
// Creating an instance of MarkerOptions
MarkerOptions markerOptions = new MarkerOptions();
// Setting latitude and longitude for the marker
markerOptions.position(point);
// Adding marker on the Google Map
googleMap.addMarker(markerOptions);
}
}
}
May be here is problem
LatLng pinLocation = new LatLng(Float.valueOf(map.get("longi")),Float.valueOf(map.get("longi")));"
you have used "longi" in (map.get("longi") for both Latitute and Longitude
i am trying to get location from both network provider and gps.By using the returned latitude and longitude i am placing markers on map. When i tried with network provider app is working fine.But when i tried to get location from gps, for the first time it is returning null. After that it is giving me exact location result. How to get rid from this.?
I think some minor changes i have to made, please suggest me in fixing this.
this is how i am doing this.
public class MapActivity extends Activity implements LocationListener {
private GoogleMap gMap;
private LocationManager locationManager;
private String provider;
boolean gps_enabled = false;
boolean netwrk_enabled = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
gMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map))
.getMap();
//Focussing india on starting map
gMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(
23.40276491, 77.51953125), 5));
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000L, 10F, this);
gps_enabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
netwrk_enabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (gps_enabled)
provider = LocationManager.GPS_PROVIDER;
else
provider = LocationManager.NETWORK_PROVIDER;
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
CameraPosition cp = new CameraPosition(new LatLng(
location.getLatitude(), location.getLongitude()), 14, 40, 90);
gMap.animateCamera(CameraUpdateFactory.newCameraPosition(cp), 4000,
null);
gMap.addMarker(new MarkerOptions().position(
new LatLng(location.getLatitude(), location.getLongitude()))
.title("I am here"));
if (location != null) {
if (provider == LocationManager.GPS_PROVIDER)
Toast.makeText(getApplicationContext(), "taking from gps",
Toast.LENGTH_SHORT).show();
else if (provider == LocationManager.NETWORK_PROVIDER)
Toast.makeText(getApplicationContext(), "taking from network",
Toast.LENGTH_SHORT).show();
new HttpGetTask().execute();
}
}
#Override
protected void onPause() {
// TODO Auto-generated method stub18d1:d002
super.onPause();
locationManager.removeUpdates(this);
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
locationManager.requestLocationUpdates(provider, 400, 1, this);
}
#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;
}
#Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(this, "Disabled provider " + provider,
Toast.LENGTH_SHORT).show();
}
#Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(this, "Enabled new provider " + provider,
Toast.LENGTH_SHORT).show();
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
private class HttpGetTask extends AsyncTask<Void, Void, String> {
//Passing latitude and longitude here to get lat longs from my remote server.
// using json parsing i am placing multiple markers here.
}
}
Everything you code is write, But you are not calling LocationManager on starting of Application. Just un comment the following line from your code from your onCreate() method.
//Location location = locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000L, 10F, this);
Uncomment above line and make following change for provider
Location location = locationManager.requestLocationUpdates(provider, 5000L, 10F, this);
i am developing one application in that i want to show my current location in the map,it shows but if i change location its shows previous location please tell me in my code mistake
my code
public class GetLatLongForTPActivity extends FragmentActivity implements LocationListener{
GoogleMap _googleMap;
static final LatLng SEC = new LatLng(17.433189,78.502223);
static final LatLng Safilguda = new LatLng(17.464166,78.536156);
static final LatLng Fathe = new LatLng(17.455932,78.450132);
LatLng myPosition;
LatLongDetails latLongDetails = new LatLongDetails();;
private EditText timeEdit;
private Button submitBtn;
private Button cancelBtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_lat_long_for_tp);
timeEdit = (EditText)findViewById(R.id.timeId);
submitBtn = (Button)findViewById(R.id.subId);
/*Intent intent = getIntent();
String anotherLAT=intent.getStringExtra("LAT");
String anotherLNG=intent.getStringExtra("LNG");
*/
ArrayList<HashMap<String, String>> arl = (ArrayList<HashMap<String, String>>)
getIntent().getSerializableExtra("arrayList");
Log.e(" NEW LATLONG1",arl.get(0).toString());
Log.e(" NEW LATLONG2",arl.get(1).toString());
Log.e(" NEW LATLONG3",arl.get(2).toString());
_googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(
R.id.map)).getMap();
if(_googleMap==null){
Toast.makeText(getApplicationContext(), "Google Map Not Available", Toast.LENGTH_LONG).show();
}
LocationManager locationManger = (LocationManager)getSystemService(LOCATION_SERVICE);
Criteria criteria=new Criteria();
Marker perth = _googleMap.addMarker(new MarkerOptions()
.position(SEC)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.flat(true));
/*Marker Safilg = _googleMap.addMarker(new MarkerOptions()
.position(Safilguda)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.flat(true));
Marker Saf = _googleMap.addMarker(new MarkerOptions()
.position(Fathe)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.flat(true));*/
String provider = locationManger.getBestProvider(criteria, true);
Location location = locationManger.getLastKnownLocation(provider);
if(location!=null){
double latitude = location.getLatitude();
double langitude = location.getLongitude();
latLongDetails.setLat(latitude);
latLongDetails.setLongi(langitude);
Log.e("lat",""+ latLongDetails.getLat());
Log.e("long", ""+latLongDetails.getLongi());
LatLng latlang = new LatLng(latitude, langitude);
LatLngBounds curScreen = _googleMap.getProjection().getVisibleRegion().latLngBounds;
curScreen.contains(latlang);
myPosition = new LatLng(latitude, langitude);
_googleMap.moveCamera(CameraUpdateFactory.newLatLng(myPosition));
_googleMap.addMarker(new MarkerOptions().position(myPosition).title("start"));
//_googleMap.setOnMarkerClickListener(GetLatLongForTPActivity.this);
submitBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String
clreatime=timeEdit.getText().toString().trim();
latLongDetails.setClearTime(clreatime);
Log.e("time",
latLongDetails.getClearTime());
new
SendLatLongValAsync(GetLatLongForTPActivity.this).execute(latLongDetails);
}
});
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
//getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
}
#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
}
Setup your Activity like below:
public class BasicMapActivity_new extends FragmentActivity implements LocationListener {
private GoogleMap mMap;
private LocationManager locationManager;
private String provider;
Double Latitude,longitude;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.basic_demo);
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map2)).getMap();
mMap.setMyLocationEnabled(true);
LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE);
boolean enabledGPS = service
.isProviderEnabled(LocationManager.GPS_PROVIDER);
boolean enabledWiFi = service
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!enabledGPS) {
Toast.makeText(BasicMapActivity_new.this, "GPS signal not found", Toast.LENGTH_LONG).show();
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
else if(!enabledWiFi){
Toast.makeText(BasicMapActivity_new.this, "Network signal not found", Toast.LENGTH_LONG).show();
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
// Define the criteria how to select the locatioin provider -> use
// default
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
// Initialize the location fields
if (location != null) {
onLocationChanged(location);
} else {
//do something
}
setUpMap();
}
#Override
protected void onPause() {
super.onPause();
locationManager.removeUpdates(this);
}
#Override
protected void onResume() {
super.onResume();
locationManager.requestLocationUpdates(provider, 400, 1, this);
setUpMapIfNeeded();
}
private void setUpMapIfNeeded() {
// Do a null check to confirm that we have not already instantiated the map.
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map2))
.getMap();
mMap.setMyLocationEnabled(true);
// Check if we were successful in obtaining the map.
if (mMap != null) {
setUpMap();
}
}
}
private void setUpMap() {
mMap.getUiSettings().setCompassEnabled(true);
mMap.getUiSettings().setTiltGesturesEnabled(true);
mMap.getUiSettings().setRotateGesturesEnabled(true);
mMap.getUiSettings().setScrollGesturesEnabled(true);
mMap.getUiSettings().setZoomControlsEnabled(true);
mMap.getUiSettings().setZoomGesturesEnabled(true);
}
Marker startPerc=null;
Location old_one;
#Override
public void onLocationChanged(Location location) {
double lat = location.getLatitude();
double lng = location.getLongitude();
LatLng coordinate = new LatLng(lat, lng)
startPerc = mMap.addMarker(new MarkerOptions()
.position(coordinate)
.title("Current Location")
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(coordinate, 18.0f))
}
#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 do not forget to add permission into manifest.xml file
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
You have used getLastKnownLocation() method while fetching the location details. This method always returns the last know co-ordinates. So, I suggest you to commenting this line Location location = locationManger.getLastKnownLocation(provider); from your code. Then it will run properly.
To update your location you have to register your Location Listener to location manager. And use override method onLocationChanged() to get latest location.
Please refer http://developer.android.com/guide/topics/location/strategies.html
Actually i am using geocoder to get the address..but i am getting address value as null.According to me I wrote the correct code to get current location from methods like getAddress() and address().The code i used is as following:
public class CurrentLoc extends Activity {
// latitude and longitude
static double latitude ;
static double longitude ;
// Google Map
private GoogleMap googleMap;
private LocationManager locationManager;
private Location location;
private String val;
private static final long MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 1; // in Meters
private static final long MINIMUM_TIME_BETWEEN_UPDATES = 1000; // in Milliseconds
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.new3);
locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MINIMUM_TIME_BETWEEN_UPDATES,
MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
new MyLocationListener()
);
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MINIMUM_TIME_BETWEEN_UPDATES, MINIMUM_DISTANCE_CHANGE_FOR_UPDATES, new MyLocationListener());
getAddress();
try {
// Loading map
initilizeMap();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* function to load map. If map is not created it will create it for you
* */
public String getAddress(){
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
location = locationManager.getLastKnownLocation(locationManager.NETWORK_PROVIDER);
if (location != null) {
latitude= location.getLatitude();
longitude= location.getLongitude();
/*String message = String.format(
"Current Location \n Longitude: %1$s \n Latitude: %2$s",
lat, lng);*/
try {
val = address(latitude, longitude);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText( CurrentLoc.this, val,
Toast.LENGTH_LONG).show();
}
return val;
}
public String address(double lt,double lg) throws IOException{
Geocoder geocoder;
List<Address> addresses;
geocoder = new Geocoder(this, Locale.getDefault());
addresses = geocoder.getFromLocation(lt, lg, 1);
String address = addresses.get(0).getAddressLine(0);
String city = addresses.get(0).getAddressLine(1);
String country = addresses.get(0).getAddressLine(2);
return address +"\n"+ city +"\n"+ country;
}
private class MyLocationListener implements LocationListener {
public void onLocationChanged(Location location) {
String message = String.format(
"New Location \n Longitude: %1$s \n Latitude: %2$s",
location.getLongitude(), location.getLatitude()
);
// Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
}
public void onStatusChanged(String s, int i, Bundle b) {
Toast.makeText(CurrentLoc.this, "Provider status changed",
Toast.LENGTH_LONG).show();
}
public void onProviderDisabled(String s) {
Toast.makeText(CurrentLoc.this,
"Provider disabled by the user. GPS turned off",
Toast.LENGTH_LONG).show();
}
public void onProviderEnabled(String s) {
Toast.makeText(CurrentLoc.this,
"Provider enabled by the user. GPS turned on",
Toast.LENGTH_LONG).show();
}
}
private void initilizeMap() {
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
CameraPosition cameraPosition = new CameraPosition.Builder().target(
new LatLng(location.getLatitude(), location.getLongitude())).zoom(12).build();
googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
MarkerOptions marker = new MarkerOptions().position(new LatLng(location.getLatitude(), location.getLongitude())).title("Hello Maps ");
googleMap.addMarker(marker);
googleMap.isMyLocationEnabled();
// check if map is created successfully or not
if (googleMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.mnew1, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case R.id.home:
openSearch();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void openSearch(){
String val1 = null;
val1 = getAddress();
Intent intnt=new Intent(getApplicationContext(),SendSms.class);
intnt.putExtra("loct", val1);
startActivity(intnt);
}
}
Move your code:
if (location != null) {
latitude= location.getLatitude();
longitude= location.getLongitude();
value=address(latitude, longitude);
Toast.makeText( CurrentLoc.this, value,
Toast.LENGTH_LONG).show();
}
Inside your public void onLocationChanged(Location location) method.
When you request a new location, you don't get the result immediately. Instead, you need to register a listener, like you did when you called locationManager.requestLocationUpdates, so the location provider can notify it when it fetches a location for you.
Also, from what I understood from your code, you may benefit from calling locationManager.requestSingleUpdate if you just need to get the phone's address in the current location instead of constantly getting location updates that requestLocationUpdates will give you.
Finally, consider this blog post for best practices on fetching the user location. You don't always need to get location updates if the current location is already known.
Hope it helps.