onMapReady関数を修正してjsonの地図をマークする方法

Question

Google MapsのAndroidに問題があります.Jsonの座標を表示したいです。 私のJSON：

{"info":[{"nama":"Masjid Agung","0":"Masjid Agung","deskripsi":"tempat sholat umat Isalm","1":"tempat sholat umat Isalm","lng":"106.332725524902","2":"106.332725524902","lat":"-6.23728179931641","3":"-6.23728179931641"},{"nama":"Restoran Bersama","0":"Restoran Bersama","deskripsi":"temapt makan","1":"temapt makan","lng":"106.309807206177","2":"106.309807206177","lat":"-6.23967002769392","3":"-6.23967002769392"},{"nama":"Restoran Cepat saja","0":"Restoran Cepat saja","deskripsi":"enak nih di sini","1":"enak nih di sini","lng":"106.318476105713","2":"106.318476105713","lat":"-6.22431180265454","3":"-6.22431180265454"},{"nama":"Bandara Halim","0":"Bandara Halim","deskripsi":"benarkah tidak ini bandara","1":"benarkah tidak ini bandara","lng":"106.34568443396","2":"106.34568443396","lat":"-6.24939667082029","3":"-6.24939667082029"},{"nama":"Bandara ABC","0":"Bandara ABC","deskripsi":"Ini adalah bandara","1":"Ini adalah bandara","lng":"106.331951523804","2":"106.331951523804","lat":"-6.22013087470731","3":"-6.22013087470731"}]} 

この私のMainActivity：

import android.os.Bundle; 
import android.support.v4.app.FragmentActivity; 
import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.OnMapReadyCallback; 
import com.google.android.gms.maps.SupportMapFragment; 
import com.google.android.gms.maps.model.LatLng; 
import com.google.android.gms.maps.model.MarkerOptions; 

public class MainActivity extends FragmentActivity implements OnMapReadyCallback { 

    private GoogleMap mMap; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() 
       .findFragmentById(R.id.map); 
     mapFragment.getMapAsync(this); 
    } 

    @Override 
    public void onMapReady(GoogleMap googleMap) { 
     mMap = googleMap; 
     LatLng sydney = new LatLng(-34, 151); 
     mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney")); 
     mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney)); 
    } 
} 

誰もが、JSONからの座標を表示するためにonMapReady機能をカスタマイズする方法を私を助けることができます。

おかげ

Answer 1

作業コードです：

@Override 
public void onMapReady(GoogleMap googleMap) { 
    mMap = googleMap; 
    LatLng sydney = new LatLng(-34, 151); 
    mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney")); 
    mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney)); 

    // Fetch data 
    fetchDataFromJSON(); 
} 

private void fetchDataFromJSON() 
{ 
    // JSON response 
    String strResponse = "{\"info\":[{\"nama\":\"Masjid Agung\",\"0\":\"Masjid Agung\",\"deskripsi\":\"......"; 

    try 
    { 
     JSONObject response = new JSONObject(strResponse); 
     JSONArray jsonArray = response.getJSONArray("info"); 

     // Clear old markers 
     mMap.clear(); 

     // Looping through all info and show on map 
     for (int i = 0; i < jsonArray.length(); i++) { 

      JSONObject jsonObject = jsonArray.getJSONObject(i); 


      String name = jsonObject.getString("nama"); 
      String description = jsonObject.getString("deskripsi"); 
      String latitude = jsonObject.getString("lat"); 
      String longitude = jsonObject.getString("lng"); 

      // Add marker 
      addMarkerToMap(latitude, longitude, name, description); 
     } 

    } catch (JSONException e) { 
     e.printStackTrace(); 
     Toast.makeText(mContext, "Error: " + e.getMessage(), Toast.LENGTH_LONG).show(); 
    } 

} 

public void addMarkerToMap(String latitude, String longitude, String title, String description) 
{ 
    double lat = Double.parseDouble(latitude); 
    double lng = Double.parseDouble(longitude); 

    // create marker 
    MarkerOptions marker = new MarkerOptions().position(new LatLng(lat, lng)) 
               .title(title) 
               .snippet(description); 

    // Marker icon 
    marker.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)); 

    // Add marker to map 
    mMap.addMarker(marker); 
} 

希望これは〜

Answer 2

あなたは、あなたのJSON文字列とJsonObjectを作成する必要があり、それをループし、必要なフィールドを取得します。ここで