Navigates backwards in the page controller’s arranged objects array.
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This method is typically invoked in response to a user interacting with a control, the sender.
This method is animated and invokes the delegate’s pageControllerWillStartLiveTransition: and pageControllerDidEndLiveTransition: methods.
Navigates to the next object in the page controller’s arranged objects array, if appropriate.
Navigates to the selected index, which is taken from the sender.
Navigates to the specific object.