The UIScrollView

스크롤 가능한 모든 뷰 컨트롤러들은 UIScrollView를 상속받는다.

장점

• Makes anything scsrollable
• Minimalist
• Full conrol
• Good for long pages

단점

• Can’t easily reload
• No built in affordances (i.e. pull to refresh)
• Auto Layout more complex

The UICollectionView

장점

• Customizable layouts
  • flow layout
• Multi-column scrollable
• Can dynamically change layout
  • 런타임에서 레이아웃을 변경할 수도 있다.
• Good for photos in a grid

단점

• More complex
• Often overkill
  • 단순한 레이아웃을 만들 때는 비효율적이나, 복잡한 레이아웃을 구현할 때는 적합하다.

The UITableView

UITableView의 구성

• Header
• Section
  • Section Header
  • Section Footer
• Rows or data
• Footer

장점

• Highly performant (reuseIdentifiers)
• Many affordances built in (header, footer, sections)
• Perfect for single column list

단점

• Hard to do complex non-single column layouts

Which to choose and when

Which to use?

• UIScrollView: Common
• UICollectionView: Rare (실제 프로젝트에서 많이 쓰이지 않음)
• UITableView: All the time