AutoCompleteTextViewの提案が表示されない

Question

SQLからAutocompleteTextViewの提案を表示したい。私は自分のコードをデバッグし、autocompleteTextViewに文字を書き込むと、値がnMAcDetailIDとcMachineNameに来ることがわかります。今私は提案リストを表示したい。どうすればこれを達成できますか？

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

AutocompleteTextViewが値でアダプタを設定した場合は、showDropDown（）メソッドを使用して表示を強制的に提案を表示できます。