title: One activity - many fragments OR many activities - many fragments?
body: <p>I'm planing a new app with a navigation drawer. 
  It is better to use one activity which manage many fragments or to use many activities with many fragments? Are there any serious advantages or disadvantages?</p>
  
  <p>I read many articles about this but there are from 2012 and older.</p>
  
  <p>(I'm just planing to read and insert some datas into/from the database..)</p>