URLからマーカーが1つしか表示されず、トーストを使用したときにすべての値が表示されるアンドロイドデバイスのマップ

Question

Googleで多くの変更を調査しましたが、問題は解決していません。私は以下のデータを含むURLを持っています。地図上にはのマーカーが2つ以上あります。には私に9つの座標があります。しかし、それは応答の最後の値の座標を持つ1つのマーカーを表示しています。どんな助けもありがとう。

{ 
    "status":200, 
    "response":[ 
     { 
    "docId":"1", 
    "docName":"Madan", 
    "docMobileNumber":"9676499774", 
    "location":"S R Nagar", 
    "specialization":"ENT", 
    "avaliablity":"Available", 
    "lat":"17.4436", 
    "log":"78.4458" 
     }, 
     { 
    "docId":"2", 
    "docName":"Kumar", 
    "docMobileNumber":"9052598855", 
    "location":"KPHB", 
    "specialization":"Pediatrician", 
    "avaliablity":"Available", 
    "lat":"17.4948", 
    "log":"78.3996" 
     }, 
     { 
    "docId":"3", 
    "docName":"charan", 
    "docMobileNumber":"8080809089", 
    "location":"Ameerpet", 
    "specialization":"Dentist", 
    "avaliablity":"Available", 
    "lat":"17.4375", 
    "log":"78.4483" 
     }, 
     { 
    "docId":"4", 
    "docName":"Vamsy", 
    "docMobileNumber":"7777778888", 
    "location":"Kukatpally", 
    "specialization":"Orthopedic", 
    "avaliablity":"Available", 
    "lat":"17.4948", 
    "log":"78.3996" 
     }, 
     { 
    "docId":"5", 
    "docName":"Ganesh", 
    "docMobileNumber":"9878686544", 
    "location":"Dilsuk Nagar", 
    "specialization":"Dermatologist", 
    "avaliablity":"Available", 
    "lat":"17.3688", 
    "log":"78.5247" 
     }, 
     { 
    "docId":"6", 
    "docName":"Savitri", 
    "docMobileNumber":"8786599452", 
    "location":" West Marredpally", 
    "specialization":"Physician", 
    "avaliablity":"Not Available", 
    "lat":"17.4500", 
    "log":"78.5006" 
     }, 
     { 
    "docId":"7", 
    "docName":"Sandhya", 
    "docMobileNumber":"9873243687", 
    "location":"Bowenpally", 
    "specialization":"Eye Specialist", 
    "avaliablity":"Available", 
    "lat":"17.898", 
    "log":"78.5008" 
     }, 
     { 
    "docId":"8", 
    "docName":"Padma", 
    "docMobileNumber":"9768832418", 
    "location":"Kompally", 
    "specialization":"Cardiologist", 
    "avaliablity":"Not Available", 
    "lat":"17.5600", 
    "log":"78.5343" 
     }, 
     { 
    "docId":"9", 
    "docName":"Priya", 
    "docMobileNumber":"9898767654", 
    "location":"Tirumalgiri", 
    "specialization":"Nerphrologist", 
    "avaliablity":"Available", 
    "lat":"17.787", 
    "log":"78.9805" 
     } 
    ] 
} 

 

package com.example.charan.markermap; 

import android.app.ProgressDialog; 
import android.content.pm.PackageManager; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.support.v4.app.ActivityCompat; 
import android.support.v4.app.FragmentActivity; 
import android.widget.Toast; 

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.BitmapDescriptorFactory; 
import com.google.android.gms.maps.model.LatLng; 
import com.google.android.gms.maps.model.Marker; 
import com.google.android.gms.maps.model.MarkerOptions; 

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.methods.HttpGet; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.util.ArrayList; 
import java.util.HashMap; 

public class Maps3 extends FragmentActivity { 

    private GoogleMap mMap; 

    ArrayList<HashMap<String, Double>> locationList = new ArrayList<HashMap<String, Double>>(); 
    JSONArray locations = new JSONArray(); 
    int json1; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_maps); 

     new TaskRead().execute(); 
    } 


    public class TaskRead extends AsyncTask<Void, Void, Void> implements OnMapReadyCallback { 

     ProgressDialog pg; 
     Double latitude, longitude; 

     protected void onPreExecute() { 
      SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() 
        .findFragmentById(R.id.map); 
      mapFragment.getMapAsync(this); 
      pg = ProgressDialog.show(Maps3.this, "Please Wait", "Conecting to Server"); 
      pg.setCancelable(true); 
     } 


     protected Void doInBackground(Void... params) { 
      try { 

       String url = "http://192.168.1.33:8282/DocFinderServices/doctorService/doctorsList"; 

       HttpClient client = new DefaultHttpClient(); 
       HttpGet httpget = new HttpGet(url); 
       HttpResponse response = client.execute(httpget); 
       HttpEntity entity = response.getEntity(); 
       InputStream inputStreamResponse = entity.getContent(); 

       String str = convertStreamToString(inputStreamResponse); 

       if (str != null) { 
        try { 
         JSONObject jsonObj = new JSONObject(str); 

         // Getting JSON Array node 
         locations = jsonObj.getJSONArray("response"); 
         json1 = jsonObj.getInt("status"); 

         // looping through All records 
         for (int i = 0; i < locations.length(); i++) { 
          JSONObject c = locations.getJSONObject(i); 

          latitude = c.getDouble("lat"); 
          longitude = c.getDouble("log"); 

          // tmp hashmap for single contact 
          HashMap<String, Double> location = new HashMap<>(); 

          // adding each child node to HashMap key => value 
          location.put("latitude", latitude); 
          location.put("longitude", longitude); 
          locationList.add(location); 
         } 
        } catch (JSONException e) { 
         e.printStackTrace(); 
        } 
       } else { 
       } 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
      return null; 
     } 

     protected void onPostExecute(Void gmap) { 
      mMap.clear(); 
      Marker[] allMarkers = new Marker[locationList.size()]; 
      Toast.makeText(Maps3.this, "The list size is " + locationList.size(), Toast.LENGTH_SHORT).show(); 

      for (int i = 0; i < locationList.size(); i++) { 

       if (mMap != null && json1 == 200) { 
        for (int j = 0; j < locationList.size(); j++) { 
         LatLng latLng = new LatLng(latitude, longitude); 
         allMarkers[i] = mMap.addMarker(new MarkerOptions() 
           .position(latLng) 
           .icon(BitmapDescriptorFactory.fromResource(R.drawable.ok))); 
         mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14.0f)); 
         mMap.getUiSettings().isZoomGesturesEnabled(); 
        } 

       } else { 
        Toast.makeText(Maps3.this, "Oops..their is no map........", Toast.LENGTH_SHORT).show(); 
       } 
      } 
      pg.dismiss(); 

     } 

     public String convertStreamToString(InputStream is) { 
      BufferedReader reader = new BufferedReader(new InputStreamReader(is)); 
      StringBuilder sb = new StringBuilder(); 
      String line = null; 
      try { 
       while ((line = reader.readLine()) != null) { 
        sb.append(line + "\n"); 
       } 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } finally { 
       try { 
        reader.close(); 
       } catch (IOException e) { 
        e.printStackTrace(); 
       } 
      } 

      return sb.toString(); 
     } 

     @Override 
     public void onMapReady(GoogleMap googleMap) { 
      mMap = googleMap; 

     } 
    } 
} 

Answer 1

ちょうどLatLng latLng = new LatLng(latitude, longitude);を LatLng latLng = new LatLng(Double.valueOf(locationList.get(j).get("latitude")), Double.valueOf(locationList.get(j).get("longitude")));としてキーペア値を取得する新しい値に変更しました。今それは働いています。

Answer 2

あなたがコールバックonMapReady()を得た後に実行TaskReadで試してみてください。

@Override 
public void onMapReady(GoogleMap googleMap) { 
    mMap = googleMap; 

// Set Zoom Controls and Gestures on map 
    mMap.getUiSettings().setZoomControlsEnabled(true) 
    mMap.getUiSettings().setZoomGesturesEnabled(true) 

    new TaskRead().execute();  
} 

FragmentActivity内部OnMapReadyCallbackを実装し、以下のようなあなたのSupportMapFragmentonCreateのメソッドを初期化します。

public class Maps3 extends FragmentActivity implements OnMapReadyCallback { 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_maps); 

     SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() 
       .findFragmentById(R.id.map); 
     mapFragment.getMapAsync(this); 

} 

は、地図上のズームコントロールとジェスチャーを設定し、ズームしてみてくださいまたはズームアウトして参照してください、他のマーカーが地図上か追加がありますか？

更新されたonMapReadyメソッドを確認してください。