3. What are the functions of the Uiviewcontroller life cycle? For example: Viewdidload/viewwillappear/viewdidappear, etc...

1. Viewdidload: The system automatically calls this method when the controller-managed master and apprentice is loaded.

2. Didreceivememorywarning: This method is not called by the programmer. This method is called when the system detects a tight memory available.

3. Viewwillappear: The system automatically calls this method when the controller-managed view is about to be displayed.

4. Viewdidappear: The system calls this method automatically when the view that the controller manages is displayed.

5. Viewwilldisappear: The system calls this method automatically when the view managed by the controller [ will be ] hidden or removed from the window.

6. Viewdiddisappear: The system calls this method automatically when the view managed by the controller is hidden or removed from the window.

7. Viewwilllayoutsubviews: The system calls this method automatically when the view that the controller manages will arrange all the child views it contains.

8. Viewdidlayoutsubviews: The system automatically calls this method when the view managed by the Controller arranges all the pose diagrams it contains.

3. What are the functions of the Uiviewcontroller life cycle? For example: Viewdidload/viewwillappear/viewdidappear, etc...