title: How to query android contact title
body: <p>It's possible in android 5.x and above by using append extra part to content provider like this:</p>
  
  <pre><code>content://com.android.contacts/contactsandroid.provider.extra.ADDRESS_BOOK_INDEX=true&amp;directory=0. 
  </code></pre>
  
  <p>Then It's return a List of section like [A,B,C,D...Z.#]. or In Korean language Env [ㄱ,ㄴ,ㄷ,ㄹ,..ㅎ]. </p>
  
  <p>But how to do it in 4.x? Is there any lib to do this? </p>