Called when the view is about to made visible. Default does nothing
Called when the view has been fully transitioned onto the screen. Default does nothing
Called when the view is dismissed, covered or otherwise hidden. Default does nothing
Called after the view was dismissed, covered or otherwise hidden. Default does nothing
This is where subclasses should create their custom view hierarchy if they aren’t using a nib. Should never be called directly.
Called after the view has been loaded. For view controllers created in code, this is after -loadView. For view controllers unarchived from a nib, this is after the view is set.