title: Remove AutoCompleteTextView dropdown list divider
body: <p>In my application, I'm using AutoCompleteTextView.
  One of the requirements is to hide the divider.
  I have added AutoCompleteTextView to layout:</p>
  
  <pre><code> &lt;AutoCompleteTextView
  android:id="@id/address_bar"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:layout_marginLeft="15dp"
  android:layout_marginRight="8dp"
  android:layout_toLeftOf="@id/address_operation_btn"
  android:background="@null"
  android:completionThreshold="1"
  android:dropDownAnchor="@id/anchor"
  android:dropDownVerticalOffset="13dp"
  android:dropDownWidth="wrap_content"
  android:ellipsize="end"
  android:gravity="center"
  android:layout_centerHorizontal="true"
  android:hint="@string/address_bar_hint"
  android:imeOptions="actionGo"
  android:inputType="textUri"
  android:maxLines="1"
  android:saveEnabled="true"
  android:singleLine="true"
  android:dropDownListViewStyle="@style/searchResultsList"
  android:textColor="@android:color/white"
  android:textColorHint="#80FFFFFF"
  android:textSize="17sp" /&gt;
  </code></pre>
  
  <p>The style i'm using is</p>
  
  <pre><code>    &lt;style name="searchResultsList" parent="@android:style/Widget.ListView"&gt;
      &lt;item name="android:divider"&gt;@android:color/transparent&lt;/item&gt;
      &lt;item name="android:dividerHeight"&gt;0px&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>But the divider is still there...
  How if can be hidden?</p>