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I am an iOS development newbie. I have a tab bar controller with an array of navigation controllers. I want a method to be called that invokes a webservice every time one of the tabs is clicked. I know I could assign a selector to a delegate for this purpose. I am just not sure about the syntax. Is this the right way to go about doing this?
You may need to refer to UITabBarControllerDelegate Protocol Reference.
You can use tabBarController:didSelectViewController: delegate method.
Hope this helps.