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35 pages
Swift
instantiateViewController / performSegue ํ๋ฉด ์ ํ ๋ฐฉ๋ฒ
UIViewController ์๋ช ์ฃผ๊ธฐ(lifecycle methods - View State Method)
Alert, ActionSheet
Notification, NotificationCenter
KVO(Key-value observing)
Singleton Pattern