Hello. this is my code of MapsActivity.java, and I don't see my markers
from mysql database. The error in logcat is:
Value
[{"LAT":"41.1172905","LON":"16.4837252"},{"LAT":"41.1171432","LON":"16.8718715"},{"LAT":"40.8476509","LON":"15.5404692"},{"LAT":"48.856614","LON":"2.3522219"},{"LAT":"40.8517746","LON":"14.2681244"}]
of type org.json.JSONArray cannot be converted to JSONObject
The error shows the json result of my php code. This php page is the url
string passed to get coordinates and markers.
Please help me. Nice thanks
This the java code:
public class MapsActivity extends FragmentActivity implements
OnMapReadyCallback {
private GoogleMap mMap;
private Double Latitude = 0.00;
private Double Longitude = 0.00;
@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);
new JSONTask().execute("http://192.168.1.101/crud/markers_android.php";);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
}
public class JSONTask extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
String finalJson = buffer.toString();
JSONObject parentObject = new JSONObject(finalJson);
JSONArray parentArray = new JSONArray();
//;
//JSONArray parentArray = parentObject.getJSONArray("");
for (int i = 0; i<parentArray.length(); i++) {
JSONObject finalObject = parentArray.getJSONObject(i);
String lat = finalObject.getString("LAT");
Latitude = Double.parseDouble(lat.toString());
String lon = finalObject.getString("LON");
Longitude = Double.parseDouble(lon.toString());
Log.w("eeee", "Lat : " + lat + " Lon : " + lon);
MarkerOptions marker = new MarkerOptions().position(new
LatLng(Latitude, Longitude));
mMap.addMarker(marker);
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} finally {
if (connection != null) {
connection.disconnect();
}
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
}
}
}
Code php is here <http://pastebin.com/HEKxBCRd>
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