# CS193p 2020 SwiftUI 好想 iOS camp 共筆

website: https://cs193p.sites.stanford.edu/

## Lecture 1: Course Logistics and Introduction to SwiftUI

{%youtube jbtqIBpUG7g%}

## Lecture 2: MVVM and the Swift Type System

{%youtube 4GjXq2Sr55Q %}

> `private(set)` 是把門關上, 但是門是玻璃門.
>

> `rardContentFactory: (Int) -> Content`
>

> property runs before self 編譯錯誤
>

> constrain and gain - 1:33:40 @ Identifable
>

cmd + E using selection for find
cmd + G find next

作業繳交區:
Reading 1: https://cs193p.sites.stanford.edu/sites/g/files/sbiybj16636/files/media/file/r1.pdf

Assignment 1: https://cs193p.sites.stanford.edu/sites/g/files/sbiybj16636/files/media/file/a1.pdf

| 日期 | 繳交人 | GitHub 連結 |
| -------- | -------- | -------- |
| 2020/05/27 | 游諭 | https://github.com/ytyubox/CS193pMemorize |

## Lecture 3: Reactive UI + Protocols + Layout

{%youtube SIYdYpPXil4 %}

> Declarative programming / imperative programming

> local variable in `body: some View` / private computed valiable in `struct MyView:View`

ObservableObject and @ObservedObjcet

Layout layoutPriority 可以覆寫 layout 系統

magic number
1. RoundedRectangle cornerRadius
2. font * 0.75
-> drawing constants property

使用 body func 作為 `self` 的取代

func body(for size:CGSize) -> some View

## Lecture 4: Grid + enum + Optionals

{%youtube eHEeWzFP6O4 %}

| 日期 | 繳交人 | GitHub 連結 |
| -------- | -------- | -------- |
| 2020/05/30 | 游諭 | https://github.com/ytyubox/CS193pMemorize |

## Lecture 5: ViewBuilder + Shape + ViewModifier

{%youtube oDKDGCRdSHc %}

* ViewModifier

## Lecture 6: Animation
{%youtube 3krC2c56ceQ %}

## Lecture 7: Multithreading EmojiArt

{%youtube tmx-OwkBWxA %}

## Lecture 8: Gestures JSON

{%youtube mz-rNLWJ0bk %}