title: Refresh a Fragment from mainactivity
body: <p>I have an <code>Activity</code> with three tabs and three <code>Fragments</code>. First <code>Fragment</code> shows the list of song titles and the second tab displays the selected song. The details of the songs is coming from a database.
  I am implementing <code>SearchView</code> feature so that whatever search text user enters, only those songs should be displayed in the index.</p>
  <p>This is exactly like the way phone book work in our devices.</p>
  <p><a href="https://i.stack.imgur.com/Bevmr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Bevmr.png" alt="enter image description here" /></a></p>
  <p>I'm not able to understand how to refresh the first <code>Fragment</code> when the search query changes.
  I'm basically looking for the method that I can call to refresh the first <code>Fragment</code>.</p>