Google помещает autocomplete api не работает

Question

Я пробовал, наверное, все уроки по этому вопросу. Но все же я не могу получить правильное текстовое представление автозаполнения. То, что я хочу, - когда пользователь начинает вводить текст, должен указывать правильные места с каждым типизируемым символом.

Вот мой код:

public class Directions extends FragmentActivity { 

AutoCompleteTextView from,to; 
Button direction; 
private static final int GPS_ERRORDIALOG_REQUEST = 9001; 
GoogleMap mMap; 
public ParserTask parserTask; 
protected PlacesTask placesTask;   

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    if(servicesOk()) 
    { 
     setContentView(R.layout.activity_directions);      

     if(initMap()) 
     { 
      from = (AutoCompleteTextView) findViewById(R.id.atv_from); 
      //from.setAdapter(new PlacesAutoCompleteAdapter(this, R.layout.list_item)); 
      from.addTextChangedListener(new TextWatcher() { 

       @Override 
       public void onTextChanged(CharSequence s, int start, int before, int count) { 
        placesTask = new PlacesTask(); 
        placesTask.execute(s.toString()); 
       } 

       @Override 
       public void beforeTextChanged(CharSequence s, int start, int count, 
       int after) { 
        // TODO Auto-generated method stub 
       } 

       @Override 
       public void afterTextChanged(Editable s) { 
        // TODO Auto-generated method stub 
       } 
      }); 
      from.setOnTouchListener(new OnTouchListener(){      
       @Override 
       public boolean onTouch(View arg0, MotionEvent arg1) { 

        from.showDropDown(); 
        return false; 
       } 
       }); 

      to = (AutoCompleteTextView) findViewById(R.id.atv_to); 
      //to.setAdapter(new PlacesAutoCompleteAdapter(this, R.layout.list_item)); 
      to.addTextChangedListener(new TextWatcher() { 

       @Override 
       public void onTextChanged(CharSequence s, int start, int before, int count) { 
        placesTask = new PlacesTask(); 
        placesTask.execute(s.toString()); 
       } 

       @Override 
       public void beforeTextChanged(CharSequence s, int start, int count, 
       int after) { 
        // TODO Auto-generated method stub 
       } 

       @Override 
       public void afterTextChanged(Editable s) { 
        // TODO Auto-generated method stub 
       } 
      }); 
      to.setOnTouchListener(new OnTouchListener(){      
       @Override 
       public boolean onTouch(View arg0, MotionEvent arg1) { 

        from.showDropDown(); 
        return false; 
       } 
       }); 
      direction = (Button) findViewById(R.id.direction); 
     } 
     else 
     { 
      Toast.makeText(getApplicationContext(), "map not available", Toast.LENGTH_LONG).show();   
     }   
    } 
    else 
    { 
     setContentView(R.layout.activity_main); 
    } 
} 


/** A method to download json data from url */ 
private String downloadUrl(String strUrl) throws IOException{ 
    String data = ""; 
    InputStream iStream = null; 
    HttpURLConnection urlConnection = null; 
    try{ 
     URL url = new URL(strUrl); 

     // Creating an http connection to communicate with url 
     urlConnection = (HttpURLConnection) url.openConnection(); 

     // Connecting to url 
     urlConnection.connect(); 

     // Reading data from url 
     iStream = urlConnection.getInputStream(); 

     BufferedReader br = new BufferedReader(new InputStreamReader(iStream)); 

     StringBuffer sb = new StringBuffer(); 

     String line = ""; 
     while((line = br.readLine()) != null){ 
      sb.append(line); 
     } 

     data = sb.toString(); 

     br.close(); 

    }catch(Exception e){ 
     Log.d("Exception while downloading url", e.toString()); 
    }finally{ 
     iStream.close(); 
     urlConnection.disconnect(); 
    } 
    return data; 
} 

// Fetches all places from GooglePlaces AutoComplete Web Service 
private class PlacesTask extends AsyncTask<String, Void, String>{ 

    @Override 
    protected String doInBackground(String... place) { 
     // For storing data from web service 
     String data = ""; 

     // Obtain browser key from https://code.google.com/apis/console 
     String key = "key=Api_key"; 

     String input=""; 

     try { 
      input = "input=" + URLEncoder.encode(place[0], "utf-8"); 
     } catch (UnsupportedEncodingException e1) { 
      e1.printStackTrace(); 
     } 

     // place type to be searched 
     String types = "types=geocode"; 

     // Sensor enabled 
     String sensor = "sensor=false"; 

     // Building the parameters to the web service 
     String parameters = input+"&"+types+"&"+sensor+"&"+key; 

     // Output format 
     String output = "json"; 

     // Building the url to the web service 
     String url = "https://maps.googleapis.com/maps/api/place/autocomplete/"+output+"?"+parameters; 

     try{ 
      // Fetching the data from we service 
      data = downloadUrl(url); 
     }catch(Exception e){ 
      Log.d("Background Task",e.toString()); 
     } 
     return data; 
    } 

    @Override 
    protected void onPostExecute(String result) { 
     super.onPostExecute(result); 

     // Creating ParserTask 
     parserTask = new ParserTask(); 

     // Starting Parsing the JSON string returned by Web Service 
     parserTask.execute(result); 
    } 
} 
/** A class to parse the Google Places in JSON format */ 
private class ParserTask extends AsyncTask<String, Integer, List<HashMap<String,String>>>{ 

    JSONObject jObject; 

    @Override 
    protected List<HashMap<String, String>> doInBackground(String... jsonData) { 

     List<HashMap<String, String>> places = null; 

     PlaceJSONParser placeJsonParser = new PlaceJSONParser(); 

     try{ 
      jObject = new JSONObject(jsonData[0]); 

      // Getting the parsed data as a List construct 
      places = placeJsonParser.parse(jObject); 

     }catch(Exception e){ 
      Log.d("Exception",e.toString()); 
     } 
     return places; 
    } 

    @Override 
    protected void onPostExecute(List<HashMap<String, String>> result) { 

     String[] frm = new String[] { "description"}; 
     int[] t = new int[] { android.R.id.text1 }; 

     // Creating a SimpleAdapter for the AutoCompleteTextView 
     SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), result, android.R.layout.simple_list_item_1, frm, t); 

     // Setting the adapter 
     from.setAdapter(adapter); 
     to.setAdapter(adapter); 
    } 
    }  

    } 

Answer 1

Я создал GooglePlaceAutoComplete (source) (Javadoc) виджет в Sprockets библиотеке. Вы можете увидеть, как я его реализовал и/или set up the library в вашем проекте, и использовать виджет.

<net.sf.sprockets.widget.GooglePlaceAutoComplete 
    android:id="@+id/place" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content"/> 

Чтобы получить Place, который выбирает пользователь, добавьте OnPlaceClickListener к нему.

public void onPlaceClick(AdapterView<?> parent, Prediction place, int position) { 
    /* do something with the Place */ 
} 

Answer 2

You can use a AutoCompletetextView for showing the place names. I did the same below. 

class GetPlaces extends AsyncTask<String, Void, ArrayList<String>> { 

    @Override 
    // three dots is java for an array of strings 
    protected ArrayList<String> doInBackground(String... args) { 


     ArrayList<String> predictionsArr = new ArrayList<String>(); 

     try { 

      URL googlePlaces = new URL(
        // URLEncoder.encode(url,"UTF-8"); 
        "https://maps.googleapis.com/maps/api/place/autocomplete/json?input=" 
          + URLEncoder.encode(args[0].toString(), "UTF-8") 
          + "&types=geocode&language=en&sensor=true&key="+Constant.GOOGLE_API_KEY); 
      URLConnection tc = googlePlaces.openConnection(); 
      BufferedReader in = new BufferedReader(new InputStreamReader(
        tc.getInputStream())); 

      String line; 
      StringBuffer sb = new StringBuffer(); 
      // take Google's legible JSON and turn it into one big string. 
      while ((line = in.readLine()) != null) { 
       sb.append(line); 
      } 

      // turn that string into a JSON object 
      JSONObject predictions = new JSONObject(sb.toString()); 
      // now get the JSON array that's inside that object 
      JSONArray ja = new JSONArray(
        predictions.getString("predictions")); 

      for (int i = 0; i < ja.length(); i++) { 
       JSONObject jo = (JSONObject) ja.get(i); 
       // add each entry to our array 
       predictionsArr.add(jo.getString("description")); 
      } 
     } catch (IOException e) { 

      Log.e("YourApp", "GetPlaces : doInBackground", e); 

     } catch (JSONException e) { 

      Log.e("YourApp", "GetPlaces : doInBackground", e); 

     } 

     return predictionsArr; 

    } 



    @Override 
    protected void onPostExecute(ArrayList<String> result) { 

     // update the adapter 
     adapter = new ArrayAdapter<String>(getActivity(), 
       android.R.layout.simple_list_item_1); 
     adapter.setNotifyOnChange(true); 
     // attach the adapter to auto complete textview 
     et_destination.setAdapter(adapter); 


    } 

}