Your First iOS & SwiftUI App: An App from Scratch

Feb 13 2023 Swift 5.7, iOS 16, Xcode 14

Part 2: SwiftUI Data

18. Create a Model

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Previous episode: 17. Intro to App Architecture Next episode: 19. Conclusion

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This video Create a Model was last updated on Feb 13 2023

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OK, let’s learn how we can put the theory of App Architecture into practice, by creating a simple data model for Bullseye.


We’re ready to add a file for our Game model.

struct Game {

struct Game {
  var target: Int = 37
  var score: Int = 0
  var round: Int = 1


So switch back to ContentView.swift, and scroll to the top.

@State private var game: Game = Game()
func points(sliderValue: Int) -> Int {
  return 999
  The slider's value is \(roundedValue).
  You scored \(game.points(sliderValue: roundedValue)) points this round.