java - How to get LatLng data from Google Geocoding API json? -

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i creating application map , faced problem. have mapview in fragment , autocompletetextview. when pick city autocomplete, should appear marker on map.

here code , working on real samsung galaxy s3 , galaxy s6 emulator, not work on meizu mx5. found, geocoder not work on every device, there solution google geocoding api. got json answer, don't know how latlang , featurename json.

example of json: http://maps.google.com/maps/api/geocode/json?address=london&sensor=true

i new android, sorry if not clear.

atvfrom.setonitemclicklistener(new adapterview.onitemclicklistener() {          @override         public void onitemclick(adapterview<?> parent, view view, int position, long id) {             locationfrom = atvfrom.gettext().tostring();             list<address> addresslistfrom = null;             geocoder geocoder = new geocoder(getactivity());              try {                 if (markerfrom[0] != null) {markerfrom[0].remove();}                 addresslistfrom = geocoder.getfromlocationname(locationfrom, 1);                  if (addresslistfrom != null) {                     address addressfrom = addresslistfrom.get(0);                     latlngfrom[0] = new latlng(addressfrom.getlatitude(), addressfrom.getlongitude());                     tripfrom = addresslistfrom.get(0).getfeaturename();                      markerfrom[0] = googlemap.addmarker(new markeroptions().position(latlngfrom[0]).title("from"));                     googlemap.animatecamera(cameraupdatefactory.newlatlng(latlngfrom[0]));                      if (markerto[0]!=null) {                         if (line[0] !=null) {line[0].remove();}                         line[0] = googlemap.addpolyline(new polylineoptions().add(latlngfrom[0], latlngto[0]).width(5).color(color.blue));                     }                  } else {                     mygeocoder mygeocoder = new mygeocoder(fragmentmap.this);                     mygeocoder.execute(locationfrom);                     try {                         jsonobject jobj = new jsonobject(mygeocoder.jsonresult);                         string status = jobj.getstring("status");                         if (status.equalsignorecase("ok")) {                             jsonarray results = jobj.getjsonarray("results");                             // how latlng , featurename json?                             // dont know here                          }                     } catch (jsonexception e) {                         e.printstacktrace();                     }                 }              } catch (ioexception e) {                 //e.printstacktrace();                 toast.maketext(getactivity(), "error", toast.length_short).show();             }         }     });

you need navigate through json objects reach location. how need do

try {     jsonobject jobj = new jsonobject(mygeocoder.jsonresult);     string status = jobj.getstring("status");     if (status.equalsignorecase("ok")) {         jsonarray results = jobj.getjsonarray("results");         jsonobject item = results.getjsonobject(0);//read first item of results         jsonobject geometry = item.getjsonobject("geometry");//location inside geometry object         jsonobject location = geometry.getjsonobject("location");         double latitude = location.getdouble("lat");         double longitude = location.getdouble("lng");         //or         latlng latlng = new latlng(latitude, longitude);     } } catch (jsonexception e) {     e.printstacktrace(); }

and check geocoder existance on devices, call below method

use ispresent() method determine whether geocoder implementation exists.

if(geocoder.ispresent()){    //exists }

happycoding;


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