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Using View Models for simpler UI
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DAloG
September 07, 2016
Programming
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Using View Models for simpler UI
DAloG
September 07, 2016
Transcript
68 slides
@daloog #iosdevuk Component Driven …and modular UI code with ViewModel
Alexey Demedetskyi
@daloog #iosdevuk https://www.youtube.com/watch?v=dJUEkjxylBw
@daloog #iosdevuk Alexey Demedetskyi
[email protected]
Github Speakerdeck iOS Team lead
@ Sigma Software
@daloog #iosdevuk MVVM: 2012 - 2015 MVC: 2009 - 2011
Redux: 2015 - …
@daloog #iosdevuk MVVM
@daloog #iosdevuk How to MVVM 1. Extract ViewModel from ViewController
2. ??? 3. Good design https://sharpfivesoftware.com/2016/07/20/mvvm-is-lipstick-on-a-pig/
@daloog #iosdevuk
@daloog #iosdevuk View Models
@daloog #iosdevuk “Design is never done.”
@daloog #iosdevuk
@daloog #iosdevuk Art
@daloog #iosdevuk Art Engineering
@daloog #iosdevuk
@daloog #iosdevuk Feedback loop
@daloog #iosdevuk Definition of done
@daloog #iosdevuk Better tools
@daloog #iosdevuk Better result
@daloog #iosdevuk Art Engineering UI - ?
@daloog #iosdevuk Art Engineering UI
@daloog #iosdevuk UI is the hardest CS problem
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk Zero* dependency** rule*** * - not actually zero
** - internal is ok *** - not a rule at all
@daloog #iosdevuk TDD?
@daloog #iosdevuk
@daloog #iosdevuk Singletons
@daloog #iosdevuk Dependency net ViewController Network Database DataModel Application
@daloog #iosdevuk Dependency tree ViewController Network Database DataModel Application View
@daloog #iosdevuk Parent is always responsible for child dependencies
@daloog #iosdevuk Module External dependency
@daloog #iosdevuk Module Internal dependency
@daloog #iosdevuk Module context always should be external
@daloog #iosdevuk Zero dependency UI?
@daloog #iosdevuk Component UI
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk Action
@daloog #iosdevuk https://medium.com/swift-fox/react-native-native-28e37f7de1ae#.x3l8sip38 Native React Native
@daloog #iosdevuk VM == Props
@daloog #iosdevuk MVVM
@daloog #iosdevuk React
@daloog #iosdevuk VM + Dynamic Animations, partial updates, etc.
@daloog #iosdevuk Deposit Time
@daloog #iosdevuk Deposit Time
@daloog #iosdevuk Deposit Time + + - - -
@daloog #iosdevuk State = f(t)
@daloog #iosdevuk Event = ΔState
@daloog #iosdevuk State = ∫Event
@daloog #iosdevuk
@daloog #iosdevuk CQRS Event sourcing
@daloog #iosdevuk
@daloog #iosdevuk Data driven
@daloog #iosdevuk Data driven
@daloog #iosdevuk VM + Complexity Containers, transition
@daloog #iosdevuk https://medium.com/@dan_abramov/smart-and- dumb-components-7ca2f9a7c7d0#.62d4jggzw
@daloog #iosdevuk FriendsList VC Friend VC FriendsList VM Friend VM
@daloog #iosdevuk
@daloog #iosdevuk
@daloog #iosdevuk Shared state
@daloog #iosdevuk http://redux.js.org
@daloog #iosdevuk ReSwift https://github.com/ReSwift/ReSwift
@daloog #iosdevuk P == NP ?
[email protected]
@daloog #iosdevuk Questions?
[email protected]
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![@daloog #iosdevuk Alexey Demedetskyi [email protected] Github Speakerdeck iOS Team lead](https://files.speakerdeck.com/presentations/7cefb1a43ca14b0da2cb2e91891fac4e/slide_2.jpg){kind=link}
![@daloog #iosdevuk P == NP ? [email protected]](https://files.speakerdeck.com/presentations/7cefb1a43ca14b0da2cb2e91891fac4e/slide_66.jpg){kind=link}
![@daloog #iosdevuk Questions? [email protected]](https://files.speakerdeck.com/presentations/7cefb1a43ca14b0da2cb2e91891fac4e/slide_67.jpg){kind=link}