How to know marker latitude and longitude position and draw a polyline

Question

I am developing an android google map application, that is showing current location on map starting.

I have an search bar in the application, when user enter any area name, then the second marker will be placed on that location.

Now my problem is, how to get second marker longitude and latitude position and make a route between the two markers.

my MainActivity.java code as follows:

public class MainActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    public void onMapSearch(View view) {
        EditText locationSearch = (EditText) findViewById(R.id.editText);
        String location = locationSearch.getText().toString();
        List<Address> addressList = null;

        if (location != null || !location.equals("")) {
            Geocoder geocoder = new Geocoder(this);
            try {
                addressList = geocoder.getFromLocationName(location, 1);

            } catch (IOException e) {
                e.printStackTrace();
            }
            Address address = addressList.get(0);
            LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
            mMap.addMarker(new MarkerOptions().position(latLng).title("Marker"));
            mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
        }
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        // Add a marker in Sydney and move the camera
        LatLng sydney = new LatLng(27.746974, 85.301582);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Kathmandu, Nepal"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        // Enable MyLocation Button in the Map
        mMap.setMyLocationEnabled(true);
    }
}

Please Help me.

Check solution here, if you want to draw a path between your locations http://stackoverflow.com/questions/26112591/draw-path-between-two-points-on-the-map-google-maps-using-eclipse/26113218#26113218 — Namrata, Sep 02 '16 at 06:08
i don't have second marker latitude and longitude position, how to fetch these values from my code.. — Vamsi Abbineni, Sep 02 '16 at 06:11
Well you can get the lat lng of that position(2nd marker and store them in arraylist) — Namrata, Sep 02 '16 at 06:14
how to get and store lng lat in arraylist, can u give me a piece of code — Vamsi Abbineni, Sep 02 '16 at 06:17
arraylist_lat_lon.add(new LatLng(location.getLatitude(), location .getLongitude())); — Namrata, Sep 02 '16 at 06:39

score 0 · Answer 1 · answered Sep 02 '16 at 06:02

0

In your program you have used the code to get the LatLng of the second marker.

LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
mMap.addMarker(new MarkerOptions().position(latLng).title("Marker"));

To make a polyline, refer to this link. By the this question has already been answered.

https://www.simplifiedcoding.net/google-maps-distance-calculator-google-maps-api/

answered Sep 02 '16 at 06:02

Geet Choubey

1,069
7
23

http://stackoverflow.com/questions/38583015/how-to-calculate-distance-and-duration-for-multiple-locations-using-distance-mat/38583719#38583719 – Geet Choubey Sep 02 '16 at 07:07
i have DirectionsJSONParser.java file, that includes your code. – Vamsi Abbineni Sep 02 '16 at 09:14

score 0 · Answer 2 · answered Sep 02 '16 at 09:54

Set Google Places API for search EdiText. Get the value from that and pass it as address..

Here is the code(address denoting strAddress here)

    List<Address> address = null;
    Geocoder coder = new Geocoder(getApplicationContext());
    try {
        address = coder.getFromLocationName(strAddress, 1);
    } catch (IOException e) {
        e.printStackTrace();
    }

    if (address != null) {
        Address location = address.get(0);
        double lat = location.getLatitude();
        double log = location.getLongitude();
    }

How to know marker latitude and longitude position and draw a polyline

2 Answers2