title: Adding activity indicator to the detail view of a splitview controller
body: <p>I'm developing a splitview based application.I have three detailviewcontrollers which will be shown in the detailview section of the splitviewcontroller based on the selected row of rootviewcontroller.</p>
  
  <p>All these detailviewcontrollers are tableviews which fetches data from the server.Hence while selecting a row in the rootviewcontroller,it is taking some time to load the respective detailview.I want to show an activity indicator in the detailview till the next view is  loaded.Can anybody help me??Thanks in advance. </p>