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  2. Google places API return a single type “car_repair”

Google places API return a single type “car_repair”

由 て烟熏妆下的殇ゞ 提交于 2019-11-29 05:55:57

Try with a query similar to this: Location is in format latitude,longitude...and be careful is "types" not type.

https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=54.27,-8.47&radius=1000&types=car_repair&key=AddYourOwnKeyHere

Because this API return the place type inside a scope. There is a method may improve the result but still not optimal, which is called setLatLngBounds.The link is https://developers.google.com/android/reference/com/google/android/gms/location/places/ui/PlacePicker.IntentBuilder#public-method-summary I have tried this API before and find it is totally a mess in some degree. For example, if you want to find restaurant inside a university, this API will not only return you the restaurant but also many other types like University. Setting a bound maybe be good but still get annoying result if you only use the API. If you just want the type of car-repair, I suggest you write a filter to filter other types and only keep car-repair type and relevant information.

I've prepared this for you , hope it helps

 // A class to store your results
 public class Place {
     private String icon;
     private Double latitude;

    public void setIcon(String icon) {
        this.icon=icon;
    }

    public void setLatitude(Double latitude) {
        this.latitude=latitude;
    }

    // .....
}

// Utility class to keep things simple
public class Functions {

     public static JSONObject convertInputStreamToJSONObject(InputStream inputStream)
        throws JSONException, IOException 
   {
       BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
       String line = "";
       String result = "";
       while ((line = bufferedReader.readLine()) != null)
           result += line;

       inputStream.close();
       return new JSONObject(result);

   }

   public static ArrayList<Place> parsePlacesFromJson(JSONObject datos) throws JSONException {

       List<Place> placesList = new ArrayList<>();

       // in your case this must be "results" I think
       final int LIST_LENGTH = datos.getJSONArray("results").length();
       //final int LIST_LENGTH = datos.getJSONArray("nameOfTheJsonMainArray").length();

       Log.d("Length", String.valueOf(LIST_LENGTH));


       // For every element in the list
       for(int i = 0; i < LIST_LENGTH; i++) {

           // Instance of a new Place
           Place place = new Place();

           // Get data as needed, this represents one place
           JSONObject obj = datos.getJSONArray("results").getJSONObject(i);

           Double latitude = obj.getJSONObject("geometry").getJSONObject("location").getDouble("lat");
           String icon = obj.getString("icon");

           place.setLatitude(latitude);
           place.setIcon(icon);
           //....
           placesList.add(place)

       }

       return placesList;
   }
 }

// The google places reader class
public class ApiReader {


   private static final String TAG = "API_READER";
   Context context;
   View v; 

   public ApiReader(Context context, View v) {
       this.context = context;
       this.v = v;
   }


   private static final String APIKEY = "yourkeyhere";


   private static String ENDPOINT =
        "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=54.27,-8.47&radius=1000&types=car_repair&key=%s";



   // Method to be called 
   public void getCarRepairs() throws IOException {
       URL url = new URL(String.format(ENDPOINT, APIKEY));
       new GetPlaces().execute(url);
   }




   // Inner asyctask class 
   private class GetPlaces extends AsyncTask<URL, Integer, List<Place>> {
       List<Place> lista;
       @Override
       protected List<Place> doInBackground(URL... params) {
           JSONObject datos;
           URL url = params[0];
           HttpURLConnection urlConnection = null;


           try {
               urlConnection = (HttpURLConnection) url.openConnection();
               InputStream in = new BufferedInputStream(urlConnection.getInputStream());
               datos = Functions.convertInputStreamToJSONObject(in);
               Log.i(TAG, datos.toString());

                 // De los datos obtenemos un objeto Place

               lista  = Functions.parsePlacesFromJson(datos);
               Log.i(TAG, "" + lista.toString());
               Log.i(TAG, "Went into try was OK.");

           } catch (Exception e) {
            Log.e(TAG, e.toString());
            Log.i(TAG, "Went into catch");

           } finally {
               urlConnection.disconnect();
               Log.i(TAG, "Went into finally, urlConnection disconnected.");
           }

           return lista;
       }


       // This method it gets what the "doInBackGround" returns
       protected void onPostExecute(List<Place> placesList) {

           if(placesList != null) {

               // Do whatever with the list of places
               //Functions.updateView(v, placesList);

           }
       }
   }

 }

 // And to make things work in yout activity just do like this

        ApiReader api = new ApiReader(this, findViewById(R.id.mainLayout));

        try {
            api.getCarRepairs();
        } catch (IOException e) {
            e.printStackTrace();
        }

Enjoy !!

标签
java
android-studio
google-places-api
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