Question

In weather app (in basilar iPhone app) there is a button with an “i” for info; when you press this “i” there is a interesting effect to change view; what’s the name of this effect? I want replay it in my app.

Answer 1

It is a modal transition style between UIViewControllers and not UIViews.

In the example you described UIViewController being loaded is a presented in a modal way and the transition style is set to UIModalTransitionStyleFlipHorizontal

UIViewController *controllerToBeLoaded = [[UIViewController alloc] init];
self.modalPresentationStyle = UIModalTransitionStyleFlipHorizontal;
[self presenteModalViewController:controllerToBeLoaded animated:YES];

Where self is also a UIViewController