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

i developing android google map application, showing current location on map starting.

i have search bar in application, when user enter area name, second marker placed on location.

now problem is, how second marker longitude , latitude position , make route between 2 markers.

my mainactivity.java code 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 supportmapfragment , notified when map ready 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 marker in sydney , move 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 map         mmap.setmylocationenabled(true);     } } 

please me.

in program have used code latlng of second marker.

latlng latlng = new latlng(address.getlatitude(), address.getlongitude()); mmap.addmarker(new markeroptions().position(latlng).title("marker")); 

to make polyline, refer link. question has been answered.

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