quitar - Android: no mostrar la lista de sugerencias automáticas cuando se selecciona un elemento

manual de programacion android pdf

Question

Estaba haciendo algunas cosas usando la vista de texto de autocompletar en mi aplicación. Recibo sugerencias cuando el usuario escribe algo. Pero, tengo una consulta, cuando el usuario escribe y toca en la lista sugerida en la vista de texto de autocompletar, aparecen más sugerencias. Quiero limitar los resultados de búsqueda cuando el usuario toca la lista y no quiero mostrar más opciones allí. ¿Cómo puedo superar esta situación?

Esta es mi clase completa, en la que estoy trabajando:

public class WikiSuggestActivity extends Activity {
public String data;
public List<String> suggest;
public AutoCompleteTextView autoComplete;
public ArrayAdapter<String> aAdapter;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    suggest = new ArrayList<String>();
    autoComplete = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);
    autoComplete.addTextChangedListener(new TextWatcher() {

        public void afterTextChanged(Editable editable) {
            // TODO Auto-generated method stub

        }

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

        }

        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
            String newText = s.toString();
            new getJson().execute(newText);
        }

    });

}

class getJson extends AsyncTask<String, String, String> {

    @Override
    protected String doInBackground(String... key) {
        String newText = key[0];
        newText = newText.trim();
        newText = newText.replace(" ", "+");
        try {
            HttpClient hClient = new DefaultHttpClient();
            HttpGet hGet = new HttpGet(
                    "http://en.wikipedia.org/w/api.php?action=opensearch&search="
                            + newText + "&limit=8&namespace=0&format=json");
            ResponseHandler<String> rHandler = new BasicResponseHandler();
            data = hClient.execute(hGet, rHandler);
            suggest = new ArrayList<String>();
            JSONArray jArray = new JSONArray(data);
            for (int i = 0; i < jArray.getJSONArray(1).length(); i++) {
                String SuggestKey = jArray.getJSONArray(1).getString(i);
                suggest.add(SuggestKey);
            }

        } catch (Exception e) {
            Log.w("Error", e.getMessage());
        }
        runOnUiThread(new Runnable() {
            public void run() {
                aAdapter = new ArrayAdapter<String>(
                        getApplicationContext(), R.layout.item, suggest);
                autoComplete.setAdapter(aAdapter);
                aAdapter.notifyDataSetChanged();
            }
        });

        return null;
    }

}
}

Cualquier orientación será apreciada.

Answer 1

public class WikiSuggestActivity extends Activity {
    public String data;
    public List<String> suggest;
    public AutoCompleteTextView autoComplete;
    public ArrayAdapter<String> aAdapter;
    public TextWatcher mTextWatcher = new TextWatcher() {
        public void afterTextChanged(Editable editable) {
            // TODO Auto-generated method stub
        }

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

        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
            String newText = s.toString();
            new getJson().execute(newText);
        }
    };
    public boolean watch = true;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        suggest = new ArrayList<String>();
        autoComplete = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);
        autoComplete.addTextChangedListener( mTextWatcher );
        autoComplete.setOnItemClickListener( new OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                autoComplete.removeTextChangedListener( mTextWatcher );
                aAdapter.clear();
                watch = false;
            }
        });
    }

    class getJson extends AsyncTask<String, String, String> {

        @Override
        protected String doInBackground(String... key) {
            String newText = key[0];
            newText = newText.trim();
            newText = newText.replace(" ", "+");
            try {
                HttpClient hClient = new DefaultHttpClient();
                HttpGet hGet = new HttpGet(
                        "http://en.wikipedia.org/w/api.php?action=opensearch&search="
                                + newText + "&limit=8&namespace=0&format=json");
                ResponseHandler<String> rHandler = new BasicResponseHandler();
                data = hClient.execute(hGet, rHandler);
                suggest = new ArrayList<String>();
                JSONArray jArray = new JSONArray(data);
                for (int i = 0; i < jArray.getJSONArray(1).length(); i++) {
                    String SuggestKey = jArray.getJSONArray(1).getString(i);
                    suggest.add(SuggestKey);
                }

            } catch (Exception e) {
                Log.w("Error", e.getMessage());
            }
            if( watch )
                runOnUiThread(new Runnable() {
                    public void run() {
                        aAdapter = new ArrayAdapter<String>(
                            getApplicationContext(), R.layout.item, suggest);
                        autoComplete.setAdapter(aAdapter);
                        aAdapter.notifyDataSetChanged();
                    }
                });

            return null;
        }

    }
}