Setting up Pull to Refresh in iOS is easy! Super easy for very fancy results.
Step 1 -> Enable Refreshing in your UIViewController's Attribute tab.
Step 2 -> Using the Assistant Editor Ctrl-Drag the Refresh Control to your View Controller
Step 3 -> Create your method to make something happen when view is pulled to refresh.
*important* make sure that you call 'endRefreshing' on the sender to make the spinner disappear.