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POAutocomplete items disappearing
 

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    <p>I have a strange problem regarding suggestion items for an AutocompleteView on Android 2.2. I am using a custom ArrayAdapter and Filter class implementation.</p> <p>When I type into the AutocompleteView the suggestion drop-down pops up after entering two characters as shown in the following screenshot:</p> <p><img src="https://i.stack.imgur.com/PfePj.png" alt="enter image description here"></p> <p>When I enter a third character the drop-down disappears:</p> <p><img src="https://i.stack.imgur.com/4Xpj6.png" alt="enter image description here"></p> <p>After entering a fourth character the suggestion drop-down is displayed again:</p> <p><img src="https://i.stack.imgur.com/lWBAc.png" alt="enter image description here"></p> <p>I don't understand why the drop-down disappears when an uneven amount of characters is entered. </p> <p>While debugging I noticed that getView() is called twice when an even amount of characters is entered, but ony once for an uneven amount. Might this be the reason for the faulty behavior?</p> <p>Here is my source code:</p> <pre><code>public class AutoCompleteActivity extends Activity { protected AutoCompleteTextView autoCompleteView; protected AutoCompleteAdapter suggsAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.autocomp); autoCompleteView = (AutoCompleteTextView) findViewById(R.id.autocomplete); autoCompleteView.setAdapter(new AutoCompleteAdapter(this, android.R.layout.simple_dropdown_item_1line, new String[1])); } private class AutoCompleteAdapter extends ArrayAdapter implements Filterable { protected LayoutInflater mInflater; protected Filter filter; public AutoCompleteAdapter(Context context, int textViewResourceId, String[] items) { super(context, textViewResourceId, items); filter = new SuggestionsFilter(); mInflater = LayoutInflater.from(context); } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { v = mInflater.inflate(android.R.layout.simple_dropdown_item_1line, parent, false); } TextView tt = (TextView) v.findViewById(android.R.id.text1); tt.setText("Suggestion item"); return v; } public Filter getFilter() { return filter; } private class SuggestionsFilter extends Filter { @Override protected FilterResults performFiltering(CharSequence constraint) { return null; } @Override protected void publishResults(CharSequence constraint, FilterResults results) { notifyDataSetChanged(); } } } </code></pre> <p>}</p> <p>...and my layout file:</p> <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;!-- Pretty hint text, and maxLines --&gt; &lt;AutoCompleteTextView android:id="@+id/autocomplete" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="text" android:maxLines="1" android:imeOptions="actionSearch" android:layout_toLeftOf="@+id/spinner" /&gt; </code></pre> <p></p>
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