Week 3, Tuesday - Questions and Answers

gistfile1.txt

Question 1: Mail, Instagram, YouTube. They all use a table view to display information. Mail uses a table view to display 
a list of all emails. Youtube shows a list of your subscribed videos or suggestions. Instagram provides a tabular view 
to display all your timeline.

Question 2:
Static table views are used to design user interfaces who needs to display a set of information in a tabular view.

Question 3:
A) UITableView has the following hierarchy:
                NSObject
                  ↓
                UIResponder
                  ↓
                UIView
                  ↓
                UIScrollView
                  ↓
                UITableView
It conforms with protocols: NSCoding, UIDataSourceTranslating, UISpringLoadedInteractionSupporting

B) UITableView and UICollectionView are siblings. Both are subclasses of UIScrollView.

Question 4: 
Use a UITableView and add a UICollectionView to your reusable tableView cell. UICollectionView works similar 
to UITableView in that the "items" (like cells) are reusable and instantiated only when they will appear on screen.

Question 5: 
If this line is commented, the table view will maintain the selected row.