title: Put and get String array from shared preferences
body: <p>I need to save on shared preferences some array of Strings and after that to get them. 
  I tried this :</p>
  
  <p><code>prefsEditor.putString(PLAYLISTS, playlists.toString());</code> where playlists is a <code>String[]</code></p>
  
  <p>and to get :</p>
  
  <p><code>playlist= myPrefs.getString(PLAYLISTS, "playlists");</code> where playlist is a <code>String</code> but it is not working.</p>
  
  <p>How can I do this ? Can anyone help me?</p>
  
  <p>Thanks in advance.</p>