call viewDidDisappear in Tabbar based Application
<p>I am using tab bar based iPhone application.I have set <code>NSTimer</code> in first two tabs.i want to invalidate this timer. so i am invalidating in <code>viewDidDisappear</code>. But when i am clicking on different tab, it will never call <code>viewDidDisappear</code>. I don't know how to call this method?please help me...thanking you in advance...</p>
