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In my app I have a tab bar at the bottom with 4 tab bar items, and what I want to do is run a method when a given tab bar item is pressed.
How can I do this?
The purpose of the methods is to send a javascript string/command to the same webview.
This is pretty straightforward: just use the
UITabBarDelegatewhich lets you get callbacks whenever a tab bar item is selected.See the Apple reference here:
http://developer.apple.com/library/ios/#documentation/uikit/reference/UITabBarDelegate_Protocol/Reference/Reference.html
…and you want to look in particular at the
tabBar:didSelectItem:method.