Please note, this blog entry is from a previous course. You might want to check out the current one.
Add 4 cards to the game (for a total of 16).
Start by selecting one row of cards, copy and place them on your storyboard:
Now connect all four new cards to the outlet connection by control dragging each of them to:
@property (strong, nonatomic) IBOutletCollection(UIButton) NSArray *cardButtons;
The complete code is available on github.