title: Is it possible to show the item icon in actionbar when action overflow clicked
body: <p>I am using the action bar in my app, and I have two qustions:</p>
  
  <p>1 As the image below, the items(item 1,item 2, item 3) is displayed without icon, is it possible to show the icon?</p>
  
  <p>In fact the <code>icon</code> is set in the <code>menu.xml</code>. </p>
  
  <p><img src="https://i.stack.imgur.com/sn5qg.png" alt="enter image description here"></p>
  
  <p>2 Is it possible to know if the action bar is split-ed? </p>
  
  <p>I use <code>android:uiOptions="splitActionBarWhenNarrow"</code> to make the actionbar split-ed if necessary, but I want to know if it is split-ed in the runtime.</p>