Develop Reference

How Can i Show multiple location marker with optimize Distance and draw line to connect each others

I have already try to achieve this type of functionality using google map direction API. You can see the picture I found this in javascript code but I want to do in android.
I want to achieve like this please click here..

PolygonOptions rectOptions2;
rectOptions2= new PolygonOptions();
mMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
#Override
public void onMapClick( final LatLng latLng)
{
// PolylineOptions rectOptions = new PolylineOptions()
// .add(new LatLng(latitude, longitude));
// Polyline polyline = mMap.addPolyline(rectOptions);
// Creating a marker
BitmapDescriptor icon =
BitmapDescriptorFactory.fromResource(R.drawable.ic_map);
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions .icon(icon);
Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
try {
final List<Address> listAddresses = geocoder.getFromLocation(latLng.latitude, latLng.longitude, 1);
if (null != listAddresses && listAddresses.size() > 0) {
markerOptions.title(location);
location = listAddresses.get(0).getAddressLine(0);
latitude=latLng.latitude;
longitude=latLng.longitude;
}
} catch (IOException e) {
e.printStackTrace();
}
// mMap.clear();
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.addMarker(markerOptions);
lat=latitude;
lng=longitude;
rectOptions2.add(new LatLng(lat, lng));
polygon= mMap.addPolygon(rectOptions2);
polygon.setStrokeColor(Color.RED);
polygon.setFillColor(Color.BLUE);
//add lat and lng in arraylist here
}
});

Drawing a polyline from current location to a fixed location

Okay, so I am developing a google maps like application using android studio. And right now I am having difficulty in understanding it. So my problem is I cannot set a specific destination that I want to go to and then draw a polyline going to it. Can somebody please help me. Thanks in advance

PolygonOptions rectOptions2;
rectOptions2= new PolygonOptions();
mMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
#Override
public void onMapClick( final LatLng latLng)
{
// PolylineOptions rectOptions = new PolylineOptions()
// .add(new LatLng(latitude, longitude));
// Polyline polyline = mMap.addPolyline(rectOptions);
// Creating a marker
BitmapDescriptor icon =
BitmapDescriptorFactory.fromResource(R.drawable.ic_map);
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions .icon(icon);
Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
try {
final List<Address> listAddresses = geocoder.getFromLocation(latLng.latitude, latLng.longitude, 1);
if (null != listAddresses && listAddresses.size() > 0) {
markerOptions.title(location);
location = listAddresses.get(0).getAddressLine(0);
latitude=latLng.latitude;
longitude=latLng.longitude;
}
} catch (IOException e) {
e.printStackTrace();
}
// mMap.clear();
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.addMarker(markerOptions);
lat=latitude;
lng=longitude;
rectOptions2.add(new LatLng(lat, lng));
polygon= mMap.addPolygon(rectOptions2);
polygon.setStrokeColor(Color.RED);
polygon.setFillColor(Color.BLUE);
//add lat and lng in arraylist here
}
});

Android how to animate marker from server every 10 seconds

I have a map which is loading a current address from a server. I am using on MapReady, and before its initialized it loads the first location from the server and zooms to the location. I want the app to be reading the address from the server every 10 seconds, and mapping the location. I am stuck after on MapReady on how I can remove the previous marker add the new marker from values from the server and still zoom on the location, the tutorials I have read like this haven't been so helpful. Below is my on MapReady.
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(),
Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mMap.setMyLocationEnabled(true);
mMap.setTrafficEnabled(true);
mMap.setIndoorEnabled(true);
mMap.setBuildingsEnabled(true);
mMap.getUiSettings().setZoomControlsEnabled(true);
LocationManager locationManager = (LocationManager) getContext().getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
geocoder = new Geocoder(getActivity());
try {
ArrayList<Address> current_adresses = (ArrayList<Address>) geocoder.getFromLocationName(current_location, 1);
for(Address add : current_adresses){
if (current_adresses != null) {//Controls to ensure it is right address such as country etc.
current_longitude = add.getLongitude();
current_latitude = add.getLatitude();
}
}
ArrayList<Address> to_adresses = (ArrayList<Address>) geocoder.getFromLocationName(destination, 1);
for(Address add : to_adresses){
if (to_adresses != null) {//Controls to ensure it is right address such as country etc.
to_longitude = add.getLongitude();
to_latitude = add.getLatitude();
}
}
} catch (IOException e) {
e.printStackTrace();
}
location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, false));
if (location != null)
{
mMap.addMarker(new MarkerOptions()
.position(new LatLng(current_latitude, current_longitude))
.title(first_name + ", " + vehicle)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.pickup)));
mMap.addMarker(new MarkerOptions()
.position(new LatLng(to_latitude, to_longitude))
.title("Destination")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.office_building)));
CameraPosition cameraPosition= new CameraPosition.Builder()
.target(getCenterCoordinate())
.zoom(13)
.build();
CameraUpdate camUpd3 = CameraUpdateFactory.newCameraPosition(cameraPosition);
mMap.animateCamera(camUpd3);
//AsyncTask to get new address
getTransporterLocation();
/**
*
* I want to set a timer with the AsyncTask inside,
*
* remove the previous marker, convert the new address to lat and long
*
* map the marker and zoom in
*
*/
}
}

You just need to call
mMap.clear();
and repeat your steps for drawing markers.

Android Maps v2 : add multiple markers to google mapfragment

I am trying to add 2 markers to the google map with the following code. It shows only one location instead of two. Can anyone look at it and comment ? I saw that the location values are distinct with a debugger.
public void updateMapWithNewLocation() {
Marker marker1 = null;
Marker marker2 = null;
LatLng latLng1 = null;
LatLng latLng2 = null;
if (mMyLocation != null) {
latLng1 = new LatLng(mMyLocation.getLatitude(), mMyLocation.getLongitude());
MarkerOptions myMarkerOptions = new MarkerOptions()
.position(latLng1)
.title("me");
marker1 = mMap.addMarker(myMarkerOptions);
}
if (mFriendLocation != null) {
latLng2 = new LatLng(mMyLocation.getLatitude(), mMyLocation.getLongitude());
MarkerOptions friendMarkerOptions = new MarkerOptions()
.position(latLng2)
.title("friend");
marker2 = mMap.addMarker(friendMarkerOptions);
}
List<Marker> markerList = new ArrayList<>();
if(marker1 != null){
markerList.add(marker1);
}
if(marker2 != null) {
markerList.add(marker2);
}
zoomToShowAllMarkers(markerList);
}
private void zoomToShowAllMarkers(List<Marker> markers) {
if ( markers == null || markers.size() < 1)
return;
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (Marker marker : markers) {
builder.include(marker.getPosition());
}
for (Marker m : markers) {
builder.include(m.getPosition());
}
LatLngBounds bounds = builder.build();
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(bounds.getCenter(), 10));
}

try using below code.
// Creating an instance of MarkerOptions
MarkerOptions markerOptions1 = new MarkerOptions();
// Setting latitude and longitude for the marker
markerOptions1.position(LatLng1);
// Adding marker on the Google Map
googleMap.addMarker(markerOptions1);
// Creating an instance of MarkerOptions
MarkerOptions markerOptions2 = new MarkerOptions();
// Setting latitude and longitude for the marker
markerOptions2.position(LatLng2);
// Adding marker on the Google Map
googleMap.addMarker(markerOptions2);
or you can add using loop inside the your custom method.

This is how I did to zoom with bounds:
map.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
#Override
public void onMapLoaded() {
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngBounds(bounds, 20);
map.animateCamera(cameraUpdate);
}
});
The onMapLoaded() makes the zooming done after the map got loaded.
Hope this helps.

Thanks for your suggestions and looking at it.
I had a copy/paste error of using myLocation instead of friendLocation
this particular line:
latLng2 = new LatLng(mMyLocation.getLatitude() mMyLocation.getLongitude()); <-- should use mFriendLocation instead of mMyLocation.
Sorry for the trouble.

Draw Polyline for Google map by for condition Android

I tried to draw a polyline between given markers, which are saved at an arraylist (poisMap). Based on my research I created the following code. I get no error and also no line, but the markers are all visible.
How have I to place the polyline method in order to get it working?
private void setUpMap() {
for (int i = 0; i < poisMap.size(); i++) {
latitude = poisMap.get(i).getLatitudePoi();
if (latitude == 0) {
Log.i("debug", "latitude null");
}
longitude = poisMap.get(i).getLongitudePoi();
poiTitle = poisMap.get(i).getTitle();
mMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title(poiTitle));
PolylineOptions routeDraw = new PolylineOptions().add(new LatLng(latitude,longitude)).width(5).color(Color.BLUE);
Polyline polyline = mMap.addPolyline(routeDraw);
}
latitudeZoom = poisMap.get(0).getLatitudePoi();
longitudeZoom = poisMap.get(0).getLongitudePoi();
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitudeZoom,longitudeZoom),14));
mMap.setMyLocationEnabled(true);
}

private void setUpMap() {
PolylineOptions routeDraw = new PolylineOptions().width(5).color(Color.BLUE);
for (int i = 0; i < poisMap.size(); i++) {
latitude = poisMap.get(i).getLatitudePoi();
if (latitude == 0) {
Log.i("debug", "latitude null");
}
longitude = poisMap.get(i).getLongitudePoi();
poiTitle = poisMap.get(i).getTitle();
mMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title(poiTitle));
routeDraw.add(new LatLng(latitude,longitude))
}
Polyline polyline = mMap.addPolyline(routeDraw);
latitudeZoom = poisMap.get(0).getLatitudePoi();
longitudeZoom = poisMap.get(0).getLongitudePoi();
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitudeZoom,longitudeZoom),14));
mMap.setMyLocationEnabled(true);
}
other
private void setUpMap() {
LatLng[] latlngarray = new LatLng[poisMap.size()];
for (int i = 0; i < poisMap.size(); i++) {
latitude = poisMap.get(i).getLatitudePoi();
if (latitude == 0) {
Log.i("debug", "latitude null");
}
longitude = poisMap.get(i).getLongitudePoi();
poiTitle = poisMap.get(i).getTitle();
mMap.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title(poiTitle));
latlngarray[i]= new LatLng(latitude, longitude);
}
PolylineOptions routeDraw = new PolylineOptions().add(latlngarray).width(5).color(Color.BLUE);
Polyline polyline = mMap.addPolyline(routeDraw);
latitudeZoom = poisMap.get(0).getLatitudePoi();
longitudeZoom = poisMap.get(0).getLongitudePoi();
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitudeZoom,longitudeZoom),14));
mMap.setMyLocationEnabled(true);
}

check this it is helpfull if you use google map
[http://wptrafficanalyzer.in/blog/drawing-driving-route-directions-between-two-locations-using-google-directions-in-google-map-android-api-v2/][1]