Retrofit Antwort Methode Analyse von JSON von Google Map API funktioniert nicht

Question

Die Schleife in der RetrofitResponse-Methode Schleifen nicht, was es tun sollte. Es sollte JSON-Daten von der Google Map-URL abrufen.

package com.webstarts.byteglory.shomadhan; 

import android.*; 
import android.content.Intent; 
import android.content.pm.PackageManager; 
import android.net.Uri; 
import android.os.Build; 
import android.support.v4.app.ActivityCompat; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.content.ContextCompat; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.location.Location; 
import android.widget.Toast; 

import com.google.android.gms.common.ConnectionResult; 
import com.google.android.gms.common.api.GoogleApiClient; 
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks; 
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener; 
import com.google.android.gms.location.LocationRequest; 
import com.google.android.gms.location.LocationServices; 
import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.MapFragment; 
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 com.webstarts.byteglory.shomadhan.POJO.Example; 

import retrofit.Call; 
import retrofit.Callback; 
import retrofit.GsonConverterFactory; 
import retrofit.Response; 
import retrofit.Retrofit; 

public class StartActivity extends FragmentActivity implements ConnectionCallbacks, OnConnectionFailedListener, com.google.android.gms.location.LocationListener, OnMapReadyCallback { 

    protected GoogleApiClient mGoogleApiClient; 
    protected Location mLastLocation; 
    protected static final String TAG = "Location Services Test"; 
    private Button search_location_button; 
    private Button search_area_button; 
    private Button toilet_status_button; 
    protected LatLng latlng; 
    protected LocationRequest mLocationRequest; 

    private GoogleMap mMap; 
    private int PROXIMITY_RADIUS = 10000; 
    Marker mCurrLocationMarker; 
    boolean mapReady = false; 
    private Marker mPerth; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_start); 
     search_location_button = (Button) findViewById(R.id.search_location_button); 
     search_area_button = (Button) findViewById(R.id.search_area_button); 
     toilet_status_button = (Button) findViewById(R.id.toilet_status_button); 
     locationApiClient(); 

//  SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() 
//    .findFragmentById(R.id.map); 
//  mapFragment.getMapAsync(this); 
     search_location_button.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
//    Log.i(TAG, String.valueOf(latlng.latitude)); 
//    Uri gmmIntentUri = Uri.parse("geo:"+String.valueOf(latlng.latitude)+","+String.valueOf(latlng.longitude)+"?z=15&q=public toilets"); 
//    Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri); 
//    mapIntent.setPackage("com.google.android.apps.maps"); 
//    startActivity(mapIntent); 

       retrofitResponse(); 

//    Marker loc = mMap.addMarker(new MarkerOptions().position(latlng) 
//      .title("You are here now 23")); 
//    mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latlng, 15)); 
// 
//    // Zoom in, animating the camera. 
//    mMap.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null); 
//    Log.i(TAG, String.valueOf(latlng.latitude)); 


      } 
     }); 

     MapFragment mapFragment = (MapFragment) getFragmentManager().findFragmentById(R.id.map); 
     mapFragment.getMapAsync(this); 

    } 

    protected synchronized void locationApiClient() { 
     mGoogleApiClient = new GoogleApiClient.Builder(this) 
       .addConnectionCallbacks(this) 
       .addOnConnectionFailedListener(this) 
       .addApi(LocationServices.API) 
       .build(); 
    } 

    @Override 
    protected void onStart() { 
     super.onStart(); 
     mGoogleApiClient.connect(); 
    } 

    @Override 
    protected void onStop() { 
     super.onStop(); 
     if (mGoogleApiClient.isConnected()) { 
      mGoogleApiClient.disconnect(); 
     } 
    } 

    /** 
    * Runs when a GoogleApiClient object successfully connects. 
    */ 
    @Override 
    public void onConnected(Bundle connectionHint) { 
     // Provides a simple way of getting a device's location and is well suited for 
     // applications that do not require a fine-grained location and that do not need location 
     // updates. Gets the best and most recent location currently available, which may be null 
     // in rare cases when a location is not available. 

     mLocationRequest = LocationRequest.create(); 
     mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); 
     mLocationRequest.setInterval(1000); 
     if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { 
      // TODO: Consider calling 
      // ActivityCompat#requestPermissions 
      // here to request the missing permissions, and then overriding 
      // public void onRequestPermissionsResult(int requestCode, String[] permissions, 
      //           int[] grantResults) 
      // to handle the case where the user grants the permission. See the documentation 
      // for ActivityCompat#requestPermissions for more details. 
      return; 
     } 
     LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this); 
     mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient); 
     if(mLastLocation != null) { 
      latlng = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude()); 
     } 
     else { 
      Toast toast = Toast.makeText(this, "Turn on your location service", Toast.LENGTH_LONG); 
      toast.show(); 
      finish(); 
     } 
    } 

    public void onLocationChanged(Location location) { 

    } 
    @Override 
    public void onConnectionFailed(ConnectionResult result) { 
     // Refer to the javadoc for ConnectionResult to see what error codes might be returned in 
     // onConnectionFailed. 
     Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = " + result.getErrorCode()); 
    } 
    /* 
    * Called by Google Play services if the connection to GoogleApiClient drops because of an 
    * error. 
    */ 
    public void onDisconnected() { 
     Log.i(TAG, "Disconnected"); 
    } 
    @Override 
    public void onConnectionSuspended(int cause) { 
     // The connection to Google Play services was lost for some reason. We call connect() to 
     // attempt to re-establish the connection. 
     Log.i(TAG, "Connection suspended"); 
     mGoogleApiClient.connect(); 
    } 

    private void retrofitResponse() { 

     String url = "https://maps.googleapis.com/maps/"; 

     Retrofit retrofit = new Retrofit.Builder() 
       .baseUrl(url) 
       .addConverterFactory(GsonConverterFactory.create()) 
       .build(); 

     RetrofitMaps service = retrofit.create(RetrofitMaps.class); 

     Call<Example> call = service.getNearbyPlaces("restaurents", latlng.latitude + "," + latlng.longitude, PROXIMITY_RADIUS); 

     call.enqueue(new Callback<Example>() { 
      @Override 
      public void onResponse(Response<Example> response, Retrofit retrofit) { 

       try { 
        mMap.clear(); 
        // This loop will go through all the results and add marker on each location. 
        Log.i("ishan", String.valueOf(response.body().getResults().size())); 
        for (int i = 0; i < response.body().getResults().size(); i++) { 
         Double lat = response.body().getResults().get(i).getGeometry().getLocation().getLat(); 
         Double lng = response.body().getResults().get(i).getGeometry().getLocation().getLng(); 
         String placeName = response.body().getResults().get(i).getName(); 
         String vicinity = response.body().getResults().get(i).getVicinity(); 
         MarkerOptions markerOptions = new MarkerOptions(); 
         LatLng latLng = new LatLng(lat, lng); 
         // Position of Marker on Map 
         markerOptions.position(latLng); 
         // Adding Title to the Marker 
         markerOptions.title(placeName + " : " + vicinity); 
         // Adding Marker to the Camera. 
         Marker m = mMap.addMarker(markerOptions); 
         // Adding colour to the marker 
         markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)); 
         // move map camera 
         mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 
         mMap.animateCamera(CameraUpdateFactory.zoomTo(11)); 
         Log.i("ishan", String.valueOf(i)); 
        } 
       } catch (Exception e) { 
        Log.d("onResponse", "There is an error"); 
        e.printStackTrace(); 
       } 
      } 
      @Override 
      public void onFailure(Throwable t) { 
       Log.d("onFailure", t.toString()); 
      } 
     }); 

    } 

    @Override 
    public void onMapReady(GoogleMap map) { 
     mapReady=true; 
     mMap = map; 

//  //Initialize Google Play Services 
//  if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { 
//   if (ContextCompat.checkSelfPermission(this, 
//     android.Manifest.permission.ACCESS_FINE_LOCATION) 
//     == PackageManager.PERMISSION_GRANTED) { 
//   } 
//  } 





    } 
} 

Dies ist die Schnittstelle der Nachrüstung. Es hat nur das GET, da es nur Daten von der Karten-URL liest.

package com.webstarts.byteglory.shomadhan; 

import com.webstarts.byteglory.shomadhan.POJO.Example; 

import retrofit.Call; 
import retrofit.http.GET; 
import retrofit.http.Query; 



    public interface RetrofitMaps { 

     /* 
     * Retrofit get annotation with our URL 
     * And our method that will return us details of student. 
     */ 
     @GET("api/place/nearbysearch/json?sensor=true&key=AIzaSyABCGHHSFDGSDsdfGADFnM") 
     Call<Example> getNearbyPlaces(@Query("type") String type, @Query("location") String location, @Query("radius") int radius); 

    } 

Answer 1

Ich habe gerade in der onResponse Nachrüst Funktion wie diese geschlungen: public void onResponse (Call Anruf, Antwortreaktion) {

  /* implement the toast */ 
      /* =new ArrayList<User>(); */ 
      ArrayList<User> test; 
      test=response.body().getUsers(); 
      String jax= test.get(0).getFarm_name(); 
      //Toast.makeText(MarkerDemoActivity.this, "farm name is "+jax, Toast.LENGTH_LONG).show(); 
      //LatLng m_cord,String farm_name,String desc 
      int i = 0; 
      while (test.size()>i) { 
       String farm_name = test.get(i).getFarm_name(); 
       String desc1 = test.get(i).getOwner_tel(); 
       String desc2 = test.get(i).getFarm_type(); 
       String cords = test.get(i).getM_cord(); 
       //split the co-ords 
       String[] latlong = cords.split(","); 
       double latitude = Double.parseDouble(latlong[0]); 
       double longitude = Double.parseDouble(latlong[1]); 
       LatLng location = new LatLng(latitude, longitude); 
       //do the loop here 
       // Add lots of markers to the map. LatLng m_cord,String farm_name,String desc 
       addMarkersToMapJax(location, farm_name, desc1 + desc2); 
       i++; 
      } 
     } 

ich eine Marker-Funktion erstellt, die Koordinaten zu laden: