Swift: Create Facebook (Part 2) – UICollectionView, NSLayoutConstraint

my review point is 8/10

https://youtu.be/ZwBYQpLQAvw?t=8m15s   button style ( setTitle, setTitleColor , setImage , titleEdgeInsets)

https://youtu.be/ZwBYQpLQAvw?t=14m35s   equally spaced out elements 

https://youtu.be/ZwBYQpLQAvw?t=18m37s   refresh collection view when user change orientation ( viewWillTransitionToSize , invalidateLayout)

Swift: Firebase 3 – How to Create Chat Bubbles using Constraints (Ep 13)

my review point is 9/10

https://youtu.be/yhGw5bR46AQ?t=5m29s   ui view clear color 

https://youtu.be/yhGw5bR46AQ?t=6m30s   내용의 양에 따라 ui view 사이트가 바뀌게 하는 작업

https://youtu.be/yhGw5bR46AQ?t=19m3s   collection view에 inset 적용하기 ( contentInset , UIEdgeInsets )

https://youtu.be/yhGw5bR46AQ?t=19m40s   clear input textfield 

https://youtu.be/yhGw5bR46AQ   chatting 창 하단부 입력창에 의해 가려지는 부분을 없애는 방법

https://youtu.be/yhGw5bR46AQ?t=23m26s   scroll가능한 부분 영역을 설정 ( scrollIndicatorInsets )

https://youtu.be/yhGw5bR46AQ?t=24m56s   기기를 옆으로 돌렸을때 새로 계산되서 레이아웃이 그려지게 하는 경우 ( viewWillTransitionToSize , collectionViewLayout.invalidateLayout )

my review point is 9/10

Swift: FB Messenger – How to create Chat Bubbles (Ep 5)

https://youtu.be/bNtsekO51iQ?t=4m46s   change cell background color and change text view background color to clear color

https://youtu.be/bNtsekO51iQ?t=6m40s   내용의 양에 따라 변경되야할 cell 크기 예상하기 (CGSizeMake, NSStringDrawingOption, NSString의 boundingRectWithSize 메소드)

https://youtu.be/bNtsekO51iQ?t=19m8s   collection view cell 에 inset넣기 (UIEdgeInsetMake)