title: Can two views both have focus in Android
body: <p>I have a EditText, and a popupWindown(which has a ListView in it), now i touch the EditText, the popupWindow shows.  </p>
  
  <p>i need the situation:  i can input something in SoftInput, and i also can click a child item in ListView which is the children of PopupWindow. </p>
  
  <p>Now, i can only input, or can only click listview , i can't do the both thing in Android 4.1, 4.2. But i can do both in Android 4.4, 5.0。 </p>
  
  <p>I tried in many ways, like popupWindo.setFocus(true), which only make the EditText lose the focus. </p>
  
  <p>So, Can android allow two views both have focus ?</p>