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how to be a POP-Star (Swift Chennai Meetup) ~ Ritesh Gupta

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/@_riteshhh /riteshhgupta /issues/295 /swift-snippets

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`Protocol-Oriented Programming in Swift` https://developer.apple.com/videos/play/wwdc2015/408/ WWDC - 2015

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`Protocol and Value Oriented Programming in UIKit Apps` https://developer.apple.com/videos/play/wwdc2016/419/ WWDC - 2016

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Swift is just not a syntax migration from Objective-C…

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Swift is not objective-c styled language…

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C ~> C++ Objective-C ~> Swift { imperative } { object oriented } { object oriented } { protocol oriented }

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Entity (class, struct - UI or Model) vs Behaviour (protocol)

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Entity is collection of behaviours…

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UIButton UIBarButtonItem

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UIBarButtonItem UIBarItem NSObject UIButton UIControl UIView

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UIBarButtonItem UIBarItem NSObject UIButton UIControl UIView

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UIKit + Protocols

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UIView Framable

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UIImageView ImageRenderable, Framable

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UIButton Tappable, ImageRenderable, Framable

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compose everything with Protocols..

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UITableViewCell
 UICollectionViewCell Reusable, Framable

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UIScrollView Scrollable, Framable

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UITableView
 UICollectionView Listable, Scrollable, Framable

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thinking in protocol..

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protocol ->

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protocol -> protocol extension ->

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protocol -> protocol extension -> protocol 
 constrained extension ->

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playground demos..

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protocol is not a silver bullet.. http://chris.eidhof.nl/post/protocol-oriented-programming/

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..computed variables, extensions, values types, immutability, functional programming, generics, enums, associative types/ values..

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