AutoCompleteTextView Vorschläge nicht angezeigt

Question

Ich möchte Vorschläge AutocompleteTextView von SQL zeigen. Ich debugge meinen Code und ich sehe, dass, wenn ich ein Zeichen in AutocompleteTextView schreibe, Wert in nMAcDetailID und cMachineName kommen. Jetzt möchte ich eine Vorschlagsliste zeigen. Wie kann ich das erreichen?

SimpleAdapter ADAhere; 

List<Map<String, String>> data = null; 

txtMachineName.addTextChangedListener(new TextWatcher() { 
      @Override 
      public void beforeTextChanged(CharSequence s, int start, int count, int after) {} 

      @Override 
      public void onTextChanged(CharSequence s, int start, int before, int count) {} 

      private Timer timer=new Timer(); 
      private final long DELAY = 300; // milliseconds 
      @Override 
      public void afterTextChanged(Editable s) { 
       timer.cancel(); 
       timer = new Timer(); 
       timer.schedule(
         new TimerTask() { 
          @Override 
          public void run() { 
           // TODO: do what you need here (refresh list) 
           // you will probably need to use runOnUiThread(Runnable action) for some specific actions 
           new async_fillMachineName().execute(); 
          } 
         }, 
         DELAY 
       ); 


      } 
     }); 


class async_fillMachineName extends AsyncTask<String, Void, String> { 

     @Override 
     protected String doInBackground(String... params) { 

      try { 
       Connection con = connectionClass.CONN(); 
       if (con == null) { 

        getActivity().getParent().runOnUiThread(new Runnable() { 
         @Override 
         public void run() { 
          Toast.makeText(getActivity(), "please Check Your Internet Connection", Toast.LENGTH_LONG).show(); 
         } 
        }); 
       } else { 
        @SuppressWarnings("WrongThread") String query = "exec App_ac_MacName "+nClintID+",'"+txtMachineName.getText()+"'"; 
        ResultSet rs = dbHelp.executeRS(query); 
        data = new ArrayList<Map<String, String>>(); 
        try { 
         while (rs.next()) { 
          Map<String, String> datanum = new HashMap<String, String>(); 
          datanum.put("ID",rs.getString("nMAcDetailID")); 
          datanum.put("NAME", rs.getString("cMachineName")); 
          data.add(datanum); 
          String str; 
          str = "1"; 
         } 

        } catch (SQLException e) { 
         e.printStackTrace(); 
        } 
       } 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
      return resultClientID; 
     } 
     @Override 
     protected void onPostExecute(String result1) { 

      try { 
       String[] fromwhere = {"ID","NAME"}; 
       int[] viewswhere = {R.id.nSerialMachineID,R.id.cCodeMachineNAme}; 
       ADAhere = new SimpleAdapter(getActivity(), data, R.layout.machine_autocomplete_list_template, fromwhere, viewswhere); 
       //SimpleCursorAdapter a = new SimpleCursorAdapter(getActivity(), R.layout.machine_autocomplete_list_template, null, fromwhere, viewswhere, 0); 
       //a.setStringConversionColumn(1); 
       txtMachineName.setAdapter(ADAhere); 

      } catch (Exception e) { 

      } 
      super.onPostExecute(result1); 

     } 
    } 

Answer 1

Wenn AutocompleteTextView Adapter mit Werten gesetzt hat Sie Methode showDropDown verwenden können() Ansicht zu zwingen, Vorschläge zu zeigen.