title: Navigate among fragments within one activity
body: <p>I would like to use one Activity which holds several fragments and navigate among the fragments. For example, in the activity, there is a list view which is a fragment, when user select one item from the list, the view will navigate to another fragment, How could this be implemented?</p>
  
  <p>I know there is a nice <a href="http://android-developers.blogspot.com/2011/02/android-30-fragments-api.html" rel="noreferrer">tutorial</a> on the developer site, but it handles the tablet screen in which two pane layout with one list fragment and one detailed fragment showing in one screen. I only want to navigate among fragments without show two fragments in one screen. </p>
  
  <p>Are there tutorials can teach me how to do it?</p>