cs193p – Lecture #8 View Controller Lifecycle, Autolayout

Please note, this blog entry is from a previous course. You might want to check out the current one.

View Controller Lifecycle

  • viewDidLoad is called after instantiation and outlet setting (geometry is not set yet!) – use for setup
  • viewWillAppear is called before the view appears on screen (geometry is available) – use for layout setup and updates which happened while the view was off screen
  • viewDidAppear
  • viewWillDisappear – use for cleaning up and saving states
  • viewDidDisappear

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