android autocomplete doesn't work at first time

Question

I'm trying to get the data from remote address, put them in to a list and then do autocomplete, but i encountered a wired problem, when i first type a character in to editText, i monitored that there's correct data in the list, but the autocomplete does not work, if i delete this and type the same character again, it'll work fine, here's my code

private OnKeyListener mKeyListener = new OnKeyListener() {
    public boolean onKey(View v, int keyCode, KeyEvent event) {
      // do something when the button is clicked
        if (event.getAction() == KeyEvent.ACTION_UP) {
            //do something here

            companyList.clear();
            EditText getInput = (EditText) findViewById(R.id.editText1);

            char pressedKey = (char) event.getUnicodeChar();
            String inputStr = Character.toString(pressedKey);
            inputStr = getInput.getText().toString();
            Logger.getLogger("test1").info(inputStr);

            if(keyCode == 67){
                return false;
            }
            String urlStr = "http://autoc.finance.yahoo.com/autoc?query=" + inputStr +
                    "&callback=YAHOO.Finance.SymbolSuggest.ssCallback";

            Logger.getLogger("url success").info(urlStr);

            AsyncHttpClient client = new AsyncHttpClient();
            Logger.getLogger("client success").info(urlStr);
            client.get(urlStr, new AsyncHttpResponseHandler() {
                public void onSuccess(String response) {
                    Logger.getLogger("testsuccess").info(response);
                    String jString = (String) response.subSequence(39, response.length()-1);
                    try {
                        JSONObject jsonObj = new JSONObject(jString);
                        JSONArray jsonArr = jsonObj.getJSONObject("ResultSet").getJSONArray("Result");
                        int i=0;
                        for(i = 0; i < jsonArr.length(); i++){
                            JSONObject tmpObj = jsonArr.getJSONObject(i);
                            String line = tmpObj.getString("symbol") + ", " + tmpObj.getString("name") + " (" + tmpObj.getString("exch") + ")";
                            companyList.add(line);
                        }
                        JSONObject firstObj = jsonArr.getJSONObject(0);
                        } catch (JSONException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }

                    for(String word : companyList){
                        Logger.getLogger("companyList").info(word);
                    }

                    ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this,
                            android.R.layout.simple_list_item_1, companyList);
                    AutoCompleteTextView textView = (AutoCompleteTextView)
                            findViewById(R.id.editText1);
                    Logger.getLogger("text2").info(textView.getText().toString());
                    textView.setAdapter(adapter);
                    Logger.getLogger("text3").info(textView.getText().toString());
                    textView.setThreshold(1);
                    Logger.getLogger("text4").info(textView.getText().toString());
}); 
                }
            });

            return false;
        }
        return false;
    }
};

when first type the character, logger text2 text3 text4 both appeared in logcat, but autocomplete doesn't work, does anyone know why? Thanks!

call setAdapter once, not everytime you type something, see my answer here http://stackoverflow.com/questions/19858843/how-to-dynamically-add-suggestions-to-autocompletetextview-with-preserving-chara how to do that — pskink, Apr 26 '14 at 08:11
note that you dont need to call any async requests as runQuery is called in the background thread — pskink, Apr 26 '14 at 10:50
@pskink this works, thanks, but in this case, how can i get the string that was selected? i used a getItemAtPosition but that only gives android.database.MatrixCursor@b2e12f88 — user2810081, Apr 26 '14 at 17:41
its a Cursor so use getString, getInteger, getFloat etc... you can use DatabaseUtils.dumpCurrentRow to see the row data — pskink, Apr 26 '14 at 19:22

score 1 · Answer 1 · edited May 23 '17 at 11:58

1

May be you need to use the same adapter and call

notifyDataSetChanged

If you don't find the answer, I suggest you switch to implementation described here

edited May 23 '17 at 11:58

Community

1
1

answered Apr 26 '14 at 07:36

asaf gitai

400
2
10

what is styleFetcher? I tried that one, but don't understand the styleFetcher, do i need to download some jar file for it? – user2810081 Apr 26 '14 at 07:46
In that example StyleFetcher is a synced call to the web. you can call it since performFiltering method is called from the adapter thread (not the UI) – asaf gitai Apr 26 '14 at 07:53
but if i need to get a parameter from main thread and pass it to the StyleFetcher function, for example the url, how to do that? – user2810081 Apr 26 '14 at 08:02
you can either * pass it in the ctor * declare it as a "final" in a scope containing an override implementation of a function calling the web * declare it as a class member in a scope containing an override implementation of a function calling the web – asaf gitai Apr 28 '14 at 06:52

android autocomplete doesn't work at first time

1 Answers1