iOS App Development

Please complete all the questions and you will get a

1. (20 point) Briefly explain each of the following items. a. What is ARC? What is its purpose? b. Name a specific circumstance when the use of super is required in iOS and describe what is accomplished in that circumstance c. Briefly explain event-driven programming d. Briefly explain external parameter names (argument labels). How are external parameter names (argument labels) helpful? e. What is the significance of the initial view controller? what is one way the initial view controller can be changed? 7. (8 points) Consider some view divided into two equal halfs, a top half and a bottom h Write/define a Swift function that is given the CGRect (of some view) and returns a CGRectt has the location and size of the bottom half of the view's CGRect. Use what you know ab functions and CGRects. (Drawing a diagram might be helpful for you.) The function interface specification: 1. The function is named getRectForBottomHalf. 2. The function has one parameter of type CGRect. Use from for the external name (argument label) and rect for the local name. 3. The function should return a CGRect