title: Add to Android ListView new item
body: <p>I have created new <code>ListView</code> in my app, I have my <code>ListView</code>, and in an <code>ActionBar</code> there is a button "add new". The button's function is to make a new item in the <code>ListView</code>.</p>
  
  <p>My question is: How can I make a new <code>String</code> in my <code>ListView</code> when the button is pushed? </p>