[Swift UI] View / Some์ด๋ž€? / ContentView / Previews

2022. 6. 16. 18:05ใ†Programming/Swift

 

[ ๊นจ์•Œ ๊ถ๊ธˆ์ฆ๋“ค ๐Ÿง ]

 

1) ์ปจํ…์ธ  ๋ทฐ: ํ™”๋ฉด์„ ๊ทธ๋ฆฌ๋Š” ๊ตฌ์กฐ์ฒด

2) ํ”„๋ฆฌ๋ทฐ : ํ”„๋ฆฌ๋ทฐ๋ฅผ ๊ทธ๋ฆฌ๋Š” ๊ตฌ์กฐ์ฒด

 

 - text ๋ฐ‘์— .์„ ํ†ตํ•˜์—ฌ ์†์„ฑ๋“ค์„ ๋‚˜์—ดํ•˜๋Š” ๊ฒƒ

 : modifier ๋ผ๊ณ  ๋ถ€๋ฅธ๋‹ค!

 ex) .font, .fontWeight, .padding ๋“ฑ๋“ฑ

 

 

 

 


 

 

[ some ์€ ๋ฌด์—‡์ธ๊ฐ€ ? ]

 [ ์ถœ์ฒ˜: https://babbab2.tistory.com/158 ]

 

 

some์ด๋ผ๋Š” ํ‚ค์›Œ๋“œ๋Š” Swift 5.1์—์„œ ๋“ฑ์žฅํ•œ ์ƒˆ๋กœ์šด ๊ธฐ๋Šฅ์œผ๋กœ,

 ํ•ด๋‹น ํ‚ค์›Œ๋“œ๊ฐ€ ๋ฐ˜ํ™˜ ํƒ€์ž… ์•ž์— ๋ถ™์„ ๊ฒฝ์šฐ,

 ํ•ด๋‹น ๋ฐ˜ํ™˜ ํƒ€์ž…์ด ๋ถˆํˆฌ๋ช…ํ•œ ํƒ€์ž…(Opaque Type)!

 : ๋ถˆํˆฌ๋ช…ํ•œ ํƒ€์ž…์ด๋ž€ -> "์—ญ ์ œ๋„ค๋ฆญ ํƒ€์ž…(reverse generic types)

 

 ์œ„์—์„œ ์ œ๋„ค๋ฆญ์ด ํ•จ์ˆ˜ "์™ธ๋ถ€"์—์„œ ํ•ด๋‹น ํƒ€์ž…์— ๋Œ€ํ•ด ์•Œ ์ˆ˜ ์žˆ๋Š” ๋ฐ˜๋ฉด,

 ๋ถˆํˆฌ๋ช…ํ•œ ํƒ€์ž…์˜ ๊ฒฝ์šฐ, ์™ธ๋ถ€์—์„œ ํ•จ์ˆ˜์˜ ๋ฐ˜ํ™˜ ๊ฐ’ ์œ ํ˜•์„ ์ •ํ™•ํ•˜๊ฒŒ ์•Œ ์ˆ˜ ์—†์Œ

 ๋‹ค๋งŒ ํ•จ์ˆ˜ ๋‚ด๋ถ€์—์„œ๋Š” ์–ด๋–ค ํƒ€์ž…์„ ๋‹ค๋ฃจ๋Š”์ง€ ์ •ํ™•ํžˆ ์•Œ๊ณ  ์žˆ์Œ

(๊ทธ๋Ÿฌ๊ฒŒ, ์ •ํ™•ํžˆ ๋ฐ˜๋Œ€๋„ค..?)

 

 

 

 


 

 

 

 

 ๋ช…ํ™•ํ•˜์ง€ ์•Š์€ ํƒ€์ž…(associatedType or Self)์ด ํ”„๋กœํ† ์ฝœ ๋‚ด์— ์ •์˜๋˜์–ด ์žˆ๊ณ ,

 ์ด ํ”„๋กœํ† ์ฝœ์„ ํ•จ์ˆ˜(๋ฐ ์—ฐ์‚ฐ ํ”„๋กœํผํ‹ฐ)์˜ ๋ฐ˜ํ™˜ ํƒ€์ž…์œผ๋กœ ๊ฐ€์งˆ ๋•Œ

 ๋ฐ˜ํ™˜ ํƒ€์ž…์„ "๋ถˆํˆฌ๋ช… ํƒ€์ž…"์œผ๋กœ ๋งŒ๋“ค์–ด์ฃผ๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉํ•˜๊ณ ,

 : ๋ฐ˜ํ™˜ ๊ฐ’ ์œ ํ˜•์„ ์ •ํ™•ํ•˜๊ฒŒ ์•Œ ์ˆ˜ ์—†๋‹ค!

  

 some์ด๋ผ๋Š” ๊ฒƒ์„ ํ†ตํ•ด ๋ฐ˜ํ™˜ ํƒ€์ž…์„ "๋ถˆํˆฌ๋ช… ํƒ€์ž…"์œผ๋กœ ๋งŒ๋“ ๋‹จ ๊ฒƒ์€,

 ๋ฐ˜ํ™˜ ํƒ€์ž…์ด ์–ด๋–ค ํƒ€์ž…์ธ์ง€ ์ปดํŒŒ์ผ๋Ÿฌ(๋ฐ ํ•จ์ˆ˜ ์™ธ๋ถ€)๋Š” 1๋„ ๋ชจ๋ฅด๊ฒ ์ง€๋งŒ

 ํ•จ์ˆ˜ ๋‚ด๋ถ€์—์„  ์–ด๋–ค ํƒ€์ž…์„ ๋ฐ˜ํ™˜ํ•˜๋Š”์ง€ ๋ช…ํ™•ํžˆ ์•Œ๊ณ  ์žˆ๊ณ , (๋‚ด๋ถ€๋Š” ์•Œ๊ณ ์žˆ๋‹ค!)

 ๋”ฐ๋ผ์„œ ๋‚ด ํ•จ์ˆ˜๋Š” ์ •ํ•ด์ง„ "ํŠน์ • ํƒ€์ž…๋งŒ ๋ฐ˜ํ™˜"๋œ๋‹ค๊ณ  ์ปดํŒŒ์ผ๋Ÿฌ์—๊ฒŒ ์•Œ๋ ค์ฃผ๋Š” ๊ฒƒ์ž„

 // ํ›„.. ์–ด๋ ต๋‹ค.. ๋จธ๋ฆฌ ํ„ฐ์ง„๋‹ค. .์œผ ใ…์•„

  

 ์œ„ ์˜ˆ์ œ์—์„œ "ํŠน์ • ํƒ€์ž…"์€ ํ•จ์ˆ˜ ๋‚ด๋ถ€์—์„œ ์–ด๋–ป๊ฒŒ ๊ตฌํ˜„ํ•˜๋ƒ์— ๋”ฐ๋ผ ๋‹ฌ๋ผ์ง€๊ฒ ์ง€๋งŒ,

 GiftBox ํ”„๋กœํ† ์ฝœ์„ ์ค€์ˆ˜ํ•˜๊ณ  ์žˆ๋Š” AppleGiftBox / CherryGiftBix ์ค‘ ํ•˜๋‚˜๊ฐ€ ๋  ๊ฒƒ์ž„

 

 

 

 

 


 

 

 [ some ์„ ์‚ฌ์šฉํ•  ๋•Œ์˜ ์ด์ ! ]

 

 

 ์—ฌ๊ธฐ์„œ body๋ผ๋Š” ๊ฒƒ์€ View๋ผ๋Š” ํ”„๋กœํ† ์ฝœ์— ์ •์˜๋œ ํ”„๋กœํผํ‹ฐ์ธ๋ฐ,

 ์ด ํ”„๋กœํผํ‹ฐ๋Š”์—ฐ์‚ฐ ํ”„๋กœํผํ‹ฐ(Computed Property)๋กœ

 ์œ„ ์ฝ”๋“œ์—์„  Text๋ผ๋Š” ๊ฒƒ์„ return ํ•˜๊ณ  ์žˆ๋‹ค๊ณ  ๋ณด๋ฉด ๋จ

  

 ์ž, ๊ทผ๋ฐ ์œ„์—์„œ ๋ฐฐ์šด ๊ฒƒ์„ ํ† ๋Œ€๋กœ ํ•œ๋‹ค๋ฉด

 some์€ ์–ธ์ œ์“ด๋‹ค??

  

 ๋ช…ํ™•ํ•˜์ง€ ์•Š์€ ํƒ€์ž…(associatedType or Self)์ด ํ”„๋กœํ† ์ฝœ ๋‚ด์— ์ •์˜๋˜์–ด ์žˆ๊ณ ,

 ์ด ํ”„๋กœํ† ์ฝœ์„ ๋ฐ˜ํ™˜ ํƒ€์ž…์œผ๋กœ ๊ฐ€์ง€๊ณ  ์‹ถ์„ ๋•Œ ์“ด๋‹ค!!!

  

 ์˜คํ™ ๊ทธ๋Ÿผ View๋Š” ํ”„๋กœํ† ์ฝœ์ผ ๊ฒƒ์ด๊ณ !!! ์†์„ฑ ์ค‘ ํ•˜๋‚˜๋Š” associatedtype(or Self)๋กœ ์„ ์–ธ๋˜์–ด ์žˆ๊ฒ ๋„ค!?

 

 

 

 

 

 

 // body๊ฐ€ associatedtype ์œผ๋กœ view (ํ”„๋กœํ† ์ฝœ) ๋‚ด๋ถ€์— ์ •์˜๋˜์–ด ์žˆ์Œ

 ์ด๋ฅผ ๋ฐ˜ํ™˜ ํƒ€์ž…์œผ๋กœ ๊ฐ–๊ณ  ์‹ถ์„ ๋•Œ

 ๋ช…ํ™•ํ•˜์ง€ ์•Š์€ ํƒ€์ž…(associatedType or Self)์ด ํ”„๋กœํ† ์ฝœ ๋‚ด์— ์ •์˜๋˜์–ด ์žˆ๊ณ ,

 ์ด ํ”„๋กœํ† ์ฝœ์„ ๋ฐ˜ํ™˜ ํƒ€์ž…์œผ๋กœ ๊ฐ€์ง€๊ณ  ์‹ถ์„ ๋•Œ some์„ ์“ด๋‹ค! :)

 

 

 public protocol View {

     /// The type of view representing the body of this view.
     ///
     /// When you create a custom view, Swift infers this type from your
     /// implementation of the required ``View/body-swift.property`` property.
     
    associatedtype Body : View

     /// The content and behavior of the view.
     ///
     /// When you implement a custom view, you must implement a computed
     /// `body` property to provide the content for your view. Return a view
     /// that's composed of built-in views that SwiftUI provides, plus other
     /// composite views that you've already defined:
     ///
     ///     struct MyView: View {
     ///         var body: some View {
     ///             Text("Hello, World!")
     ///         }
     ///     }
     ///
     /// For more information about composing views and a view hierarchy,
     /// see <doc:Declaring-a-Custom-View>.
     @ViewBuilder var body: Self.Body { get }
 }

 

 

 

 


 

 

[์ •๋ฆฌ]

 

 ๊ทธ๋Ÿผ body๋ผ๋Š” ์—ฐ์‚ฐ ํ”„๋กœํผํ‹ฐ๋Š” View๋ผ๋Š” ํ”„๋กœํ† ์ฝœ ํƒ€์ž…์„ ๋ฐ˜ํ™˜ํ•˜์ง€๋งŒ

 View๋ผ๋Š” ํ”„๋กœํ† ์ฝœ ๋‚ด์— ๋ช…ํ™•ํ•˜์ง€ ์•Š์€ ํƒ€์ž…(body)์ด ์ •์˜๋˜์–ด ์žˆ์œผ๋‹ˆ

 some์„ ํ†ตํ•ด ๋ถˆํˆฌ๋ช… ํƒ€์ž…์ด๋ผ๊ณ  ๋ฐํ˜€์ค€ ๊ฒƒ์ด๊ตฌ๋‚˜!

  

 ๋”ฐ๋ผ์„œ body ๋‚ด๋ถ€์— ๋‚ด๊ฐ€ ์ž‘์„ฑํ•˜๋Š” ์ฝ”๋“œ์— ๋”ฐ๋ผ ๋ฆฌํ„ด ํƒ€์ž…์ด ๋‹ฌ๋ผ์ง€๊ฒ ์ง€๋งŒ,

 View ํ”„๋กœํ† ์ฝœ์„ ์ค€์ˆ˜ํ•˜๋Š” ํƒ€์ž…๋งŒ ๋ฆฌํ„ด์ด ๊ฐ€๋Šฅํ•˜๊ฒ ๊ตฐ!

 

 

 

 ( if text -> button )

 

 ์ปดํŒŒ์ผ๋Ÿฌ(๋ฐ ํ•จ์ˆ˜ ์™ธ๋ถ€)์—์„œ๋Š” View๋ผ๋Š” ํ”„๋กœํ† ์ฝœ์„ ์ค€์ˆ˜ํ•˜๋Š” ๊ฐ์ฒด๊ฐ€ ๋‚˜์˜ฌ ๊ฒƒ์€ ์•Œ์ง€๋งŒ,

 ์ •ํ™•ํžˆ ์–ด๋–ค ํƒ€์ž…์ด ๋‚˜์˜ฌ์ง€๋Š” ๋ชจ๋ฆ„

 ๋‹ค๋งŒ ์œ„์—์„œ body๋Š” ํŠน์ • ํƒ€์ž…(ํ˜„์žฌ๋Š” ๋‚ด๊ฐ€ Text๋ฅผ ๋ฆฌํ„ด ํ–ˆ์œผ๋‹ˆ Text)๋งŒ

 ํ•ญ์ƒ ๋ฐ˜ํ™˜๋œ๋‹จ ๊ฒƒ์„ ์•Œ๋ ค์ฃผ๋Š” ๊ฒƒ์ด some(๋ถˆํˆฌ๋ช… ํƒ€์ž…)์ž„

  

 ์—ฅ ๊ฐ‘์ž๊ธฐ ๊ธฐํš์ž๊ฐ€ ๋‚ด๋ถ€ ๋””์ž์ธ์„ Text๊ฐ€ ์•„๋‹Œ ๋ฒ„ํŠผ์œผ๋กœ ๋ฐ”๊ฟ”๋‹ฌ๋ผ๋„ค?

 

 ์ด๋ ‡๊ฒŒ text๋ฅผ Button์œผ๋กœ ๋ฐ”๊พธ๋ฉด ์ปดํŒŒ์ผ๋Ÿฌ ๋ฐ ํ•จ์ˆ˜ ์™ธ๋ถ€์—์„ 

 ์—ฌ์ „ํžˆ ์ •ํ™•ํžˆ ์–ด๋–ค ํƒ€์ž…์ด ๋‚˜์˜ฌ์ง€๋Š” ๋ชจ๋ฆ„

 ๋‹ค๋งŒ ์œ„์—์„œ body๋Š” ํŠน์ • ํƒ€์ž…(ํ˜„์žฌ๋Š” ๋‚ด๊ฐ€ Button๋ฅผ ๋ฆฌํ„ด ํ–ˆ์œผ๋‹ˆ Button)๋งŒ

 ํ•ญ์ƒ ๋ฐ˜ํ™˜๋œ๋‹จ ๊ฒƒ์„ ์•Œ๋ ค์ฃผ๋Š” ๊ฒƒ์ด some(๋ถˆํˆฌ๋ช… ํƒ€์ž…)์ž„

 

 

 


 

 

[ summary ]

 

 ์ด๋ ‡๊ฒŒ ๋ถˆํˆฌ๋ช…ํ•œ ํƒ€์ž…(some)์„ ์‚ฌ์šฉํ•  ๊ฒฝ์šฐ,

 ํ•จ์ˆ˜ ๋‚ด๋ถ€์—์„œ ๋‚ด๊ฐ€ ์งœ๋Š” ์ฝ”๋“œ์— ๋”ฐ๋ผ ์‹œ์‹œ๊ฐ๊ฐ ๋ฆฌํ„ด ํƒ€์ž…์ด ๋ณ€๊ฒฝ ๋˜์—ˆ์ง€๋งŒ (Text -> Button)

 ์ด๊ฑฐ์— ๋Œ€ํ•ด ๋”ฐ๋กœ ๋‚ด๊ฐ€ ๋ฆฌํ„ด ํƒ€์ž…์„ ๋ฐ”๊ฟ”์ค„ ํ•„์š”๊ฐ€ ์—†์Œ!!!

 

 ๋งŒ์•ฝ some์„ ํ†ตํ•ด ๋ถˆํˆฌ๋ช… ํƒ€์ž…์œผ๋กœ ์„ ์–ธํ•˜์ง€ ์•Š์•˜๋‹ค๋ฉด

 ๋งค๋ฒˆ body์˜ ํƒ€์ž…์„ ์ €๋ ‡๊ฒŒ ๋‹ค ๋”์ฐํ•˜๊ฒŒ ๋ช…๋ช…ํ•ด์คฌ์–ด์•ผ ํ–ˆ์„ ๊ฑฐ์ž„

 ํ•œ๋งˆ๋””๋กœ ๋ถˆํ•„์š”ํ•œ ํƒ€์ž…์— ๋Œ€ํ•ด ์šฐ๋ฆฌ๊ฐ€ ์•Œ ํ•„์š”๊ฐ€ ์—†์Œ! ์ปดํŒŒ์ผ๋Ÿฌ๊ฐ€ ์•Œ์•„์„œ ํ•จ

 -> ์‰ฝ๊ฒŒ ui ์š”์†Œ๋“ค์„ ๊ตฌ์„ฑํ•˜๊ธฐ ์œ„ํ•ด, ์‚ฌ์šฉ์„ฑ์„ ๋†’์ด๋Š” ์—ญํ• ์„ ํ•˜๋Š” ๋“ฏ ํ•˜๋‹ค.

 

 

 

 

 

#if DEBUG
struct ContentView_Previews : PreviewProvider {
    static var previews: some View {
        // previews : PreviewProvider ํ”„๋กœํ† ์ฝœ์˜ ํ•„์ˆ˜ ๊ตฌํ˜„ ์‚ฌํ•ญ
        // previews ํƒ€์ž… ํ”„๋กœํผํ‹ฐ์—์„œ ๋ทฐ ์ƒ์„ฑ
        
        ContentView()
        // ์–˜๋„ ๊ฒฐ๊ตญ ํ™ˆ ๋ทฐ ์ƒ์„ฑ์œผ๋กœ ์ด์–ด์ง€๊ฒ ์ง€?
    }
}
#endif

 

 

 

 public protocol PreviewProvider : _PreviewProvider {

     /// The type to preview.
     ///
     /// When you create a preview, Swift infers this type from your
     /// implementation of the required
     /// ``PreviewProvider/previews-swift.type.property`` property.
 
     associatedtype Previews : View

     /// A collection of views to preview.
     ///
     /// Implement a computed `previews` property to indicate the content to
     /// preview. Xcode generates a preview for each view that you list. You
     /// can apply ``View`` modifiers to the views, like you do
     /// when creating a custom view. For a preview, you can also use
     /// various preview-specific modifiers that customize the preview.
     /// For example, you can choose a specific device for the preview
     /// by adding the ``View/previewDevice(_:)`` modifier:
     ///
     ///     struct CircleImage_Previews: PreviewProvider {
     ///         static var previews: some View {
     ///             CircleImage()
     ///                 .previewDevice(PreviewDevice(rawValue: "iPad Pro (11-inch)"))
     ///         }
     ///     }
     ///
     /// For the full list of preview-specific modifiers,
     /// see <doc:Previews-in-Xcode>.
 
     @ViewBuilder static var previews: Self.Previews { get }

     /// The platform on which to run the provider.
     ///
     /// Xcode infers the platform for a preview based on the currently
     /// selected target. If you have a multiplatform target and want to
     /// suggest a particular target for a preview, implement the
     /// `platform` computed property to provide a hint,
     /// and specify one of the ``PreviewPlatform`` values:
     ///
     ///     struct CircleImage_Previews: PreviewProvider {
     ///         static var previews: some View {
     ///             CircleImage()
     ///         }
     ///
     ///         static var platform: PreviewPlatform? {
     ///             PreviewPlatform.tvOS
     ///         }
     ///     }
     ///
     /// Xcode ignores this value unless you have a multiplatform target.
     static var platform: PreviewPlatform? { get }
 }

 

 

 

 

 


  

 

 

 [ content view ์ดํ•ดํ•˜๊ธฐ ]

 [ ์ถœ์ฒ˜: https://babbab2.tistory.com/159?category=829015 ]

 

 

 

 1) body๋Š” ๋‹จ ํ•œ๊ฐœ์˜ View๋งŒ ๋ฐ˜ํ™˜ !

 : ์—ฌ๋Ÿฌ๊ฐœ์˜ text๋ฅผ ๋ฐฐ์น˜ํ•˜๊ณ  ์‹ถ์„ ๋•, ๊ผญ stack์œผ๋กœ ๋ฌถ์–ด์ค˜์•ผ ํ•จ

 : ์ฆ‰, ์—ฌ๋Ÿฌ ๊ฐœ์˜ ๋ทฐ๋“ค์„ ํ•˜๋‚˜์˜ ๋ทฐ๋กœ ๊ฐ์‹ธ์ค˜์„œ ํ•˜๋‚˜์˜ View๋กœ ๋ฆฌํ„ดํ•ด์•ผ ํ•จ!!!

 - ์‹ค์ œ ์œ„ ์ฝ”๋“œ์—์„œ body์˜ ํƒ€์ž…์€ VStack<TupleView<Text,Text>>์œผ๋กœ

   body๋Š” VStack์ด๋ผ๋Š” ํ•˜๋‚˜์˜ View๋กœ ๋ฐ˜ํ™˜๋˜๋Š” ๊ฒƒ์ž„!

 - ๋‹ค๋งŒ ์šฐ๋ฆฐ ์œ„์˜ ๋ณต์žกํ•œ ํƒ€์ž…์— ๋Œ€ํ•ด ์•Œ ํ•„์š” ์—†๊ณ  ๋ช…์‹œํ•  ํ•„์š”๋„ ์—†๋‹ค!

 -> body๊ฐ€ some View ์ฆ‰, ๋ถˆํˆฌ๋ช… ํƒ€์ž…์„ ๋ฆฌํ„ดํ•˜๋‹ˆ๊นŒ! ํ•˜ํ•˜

 

 

 2) ContentView์— ๋ณ€์ˆ˜๋‚˜ ์ƒ์ˆ˜๋ฅผ ์ถ”๊ฐ€ ?

 -> body ์œ„์—๋‹ค๊ฐ€ ํ•ด์ฃผ๋ฉด ๋œ๋‹ค!

 

 

 struct ContentView : View {
      var name: "Colli"
      var body: some View {
          Text("Hello")
      }
  }

  

 

 

 

 

 3) View์˜ ์ƒ์• ์ฃผ๊ธฐ๋ฅผ ๊ด€๋ฆฌํ•˜๊ณ  ์‹ถ๋‹ค๋ฉด ?

 

 ๊ทธ.. UIKit์œผ๋กœ ๊ฐœ๋ฐœํ•  ๋•Œ ์‚ฌ์šฉํ•˜๋Š” View Controller์˜ ์ƒ์• ์ฃผ๊ธฐ ์žˆ์ž–์Œ?

  

 ViewDidAppear

 ViewDidDisappear

 ...

  

 ๋“ฑ๋“ฑ.. ์ด๋Ÿฐ ๊ฑฐ ์–ด๋–ป๊ฒŒ ์‚ฌ์šฉํ•˜๋ƒ๋ฉด

  

 onAppear

 onDisappear

  

 ๋ผ๋Š” modifier๋ฅผ ์ด์šฉํ•˜๋ฉด ๋จ!! :)

 

 

  

  struct ContentView : View {
      var body: some View {
          Text("Hello")
          .onAppear {
              print("ํ…์ŠคํŠธ๊ฐ€ ๋ณด์ž…๋‹ˆ๋‹ค")
          }
      }
  }

 

  

  

 ๋“ฑ๋“ฑ ์ด๋Ÿฐ ์‹์œผ๋กœ!

 

 

 +

 

 + ์ฐธ๊ณ ๋กœ

 ์œ„์˜ body ํ”„๋กœํผํ‹ฐ๋Š” View๊ฐ€ ์ƒ์„ฑ๋˜๊ณ  ํ•œ ๋ฒˆ๋งŒ ๋งŒ๋“ค์–ด์ง€๋Š” ๊ฒŒ ์•„๋‹ˆ๋ผ

 View์˜ Life Cycle ๋™์•ˆ ํ•„์š”ํ•  ๋•Œ๋งˆ๋‹ค ์—ฌ๋Ÿฌ ๋ฒˆ์”ฉ ์ƒˆ๋กœ ๋งŒ๋“ค์–ด์ ธ์„œ ๋ฆฌํ„ด๋จ

  

 ๊ทธ๋Ÿผ ์„ฑ๋Šฅ์— ๋ฌธ์ œ์žˆ๋Š” ๊ฑฐ ์•„๋‹Œ๊ฐ€์š”? ์‹ถ๊ฒ ์ง€๋งŒ,

 SwiftUI์—์„  View ์ž์ฒด๊ฐ€ ํด๋ž˜์Šค๊ฐ€ ์•„๋‹Œ ๊ตฌ์กฐ์ฒด๋กœ ๋งค์šฐ๋งค์šฐ ๊ฐ€๋ฒผ์›Œ ok