/widget/Checkable.html">Checkable</a></code> interface.&nbsp;</td>
          </tr>
        <tr class="alt-color api apilevel-1" >
              <td class="jd-linkcol"><a href="../../../reference/android/widget/CompoundButton.html">CompoundButton</a></td>
              <td class="jd-descrcol" width="100%"><p>
 A button with two states, checked and unchecked.&nbsp;</td>
          </tr>
        <tr class=" api apilevel-1" >
              <td class="jd-linkcol"><a href="../../../reference/android/widget/RadioBu