reload/refresh button to refresh objects/data in a UIView
<p>I have a UIView that updates based on data in a certain object.</p>

<p>I'd like to be able to add a refresh button to my toolbar that reloads the object and redraws the view. I don't want it to happen every time so don't want to use viewWillAppear:</p>

<p>Sounds like it should be a popular thing to do but I can't seem to find any answers on here or the web.</p>

<p>Thanks in advance.</p>
