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How to call the method "tabBarController: didSelectViewController:" programmatically?

I'm currently trying to run the 'didSelectViewController' method programmatically through the following code:

self.tabController.selectedViewController = [self.tabController.viewControllers objectAtIndex:NEWSTAB_INDEX];

However, the 'didSelectViewController' method was not called. How can I call a method without having to manually select the tab bar?

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 self.tabController.selectedIndex = NEWSTAB_INDEX; // to actually switch to the controller (your code would work as well) - not sure if this does or not send the didSelectViewController: message to the delegate [self.tabController.delegate tabBarController:self.tabController didSelectViewController:[self.tabController.viewControllers objectAtIndex:NEWSTAB_INDEX]]; // send didSelectViewController to the tabBarController delegate
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For quick 3.0, you can programmatically call the tabbar delegate method like this

 self.tabController.selectedIndex = index (eg 0,1...etc) self.tabController.delegate.tabBarController(self.tabController, didSelectViewController: self.tabController.viewControllers[index])
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Source: https://habr.com/ru/post/897517/

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