Mercurial > public > geoquiz
annotate GeoQuiz/GuessTheFlagView.swift @ 26:425078c01194
refactor code
| author | Dennis C. M. <dennis@denniscm.com> |
|---|---|
| date | Wed, 09 Nov 2022 10:30:01 +0100 |
| parents | 02dcebb8cc4a |
| children | 3f4b366d476d |
| rev | line source |
|---|---|
| 0 | 1 // |
| 2 // GuessTheFlagView.swift | |
| 3 // GeoQuiz | |
| 4 // | |
| 5 // Created by Dennis Concepción Martín on 20/9/22. | |
| 6 // | |
| 7 | |
| 8 import SwiftUI | |
| 9 | |
| 10 struct GuessTheFlagView: View { | |
| 26 | 11 @StateObject var gameController = CountryGameController() |
| 0 | 12 |
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13 @Environment(\.managedObjectContext) var moc |
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14 |
| 0 | 15 var body: some View { |
| 16 ZStack { | |
| 17 LinearGradient(gradient: .main, startPoint: .top, endPoint: .bottom) | |
| 18 .ignoresSafeArea() | |
| 19 | |
| 3 | 20 GeometryReader { geo in |
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21 VStack { |
| 26 | 22 GameToolbar(gameController: gameController, color: .mayaBlue) |
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23 .padding(.bottom) |
| 0 | 24 |
| 11 | 25 VStack(alignment: .center, spacing: 10) { |
| 26 | 26 Text("Question \(gameController.questionCounter) of \(gameController.data.count)") |
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27 .font(.title3) |
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28 .foregroundColor(.white.opacity(0.7)) |
| 6 | 29 |
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30 Text("What is the flag of") |
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31 .font(.title) |
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32 .fontWeight(.semibold) |
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33 .foregroundColor(.white) |
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34 |
| 26 | 35 Text("\(gameController.correctAnswer.key)?") |
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36 .font(.largeTitle.bold()) |
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37 .foregroundColor(.white) |
| 26 | 38 .multilineTextAlignment(.center) |
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39 |
| 0 | 40 } |
| 41 | |
| 42 Spacer() | |
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43 VStack(spacing: 30) { |
| 26 | 44 ForEach(Array(gameController.userChoices.keys), id: \.self) { countryName in |
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45 Button { |
| 26 | 46 gameController.answer( |
| 47 choice: (key: countryName, value: gameController.data[countryName]!), | |
| 48 wrongMessage: "That's the flag of \(countryName)" | |
| 49 ) { | |
| 50 gameController.selector() | |
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51 } |
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52 } label: { |
| 26 | 53 |
| 54 /* | |
| 55 THE PROBLEM: | |
| 56 SwiftUI caches the image when it's shown using the `Image(string)` API. | |
| 57 Once the image is not showed anymore, SwiftUI doesn't release memory, | |
| 58 so it keeps caching new images until the app crashes | |
| 59 UIImage(contentsOfFile: path) doesn't cache the image | |
| 60 | |
| 61 THE SOLUTION: | |
| 62 Using `UIImage(contentsOfFile: path)` images aren't cached. | |
| 63 */ | |
| 64 | |
| 65 let flag = gameController.data[countryName]!.flag | |
| 66 let flagPath = Bundle.main.path(forResource: flag, ofType: "png")! | |
| 67 | |
| 68 RoundedRectangle(cornerRadius: 20) | |
| 69 .foregroundColor(.white.opacity(0.5)) | |
| 70 .frame(width: geo.size.height * 0.3, height: geo.size.height * 0.15) | |
| 20 | 71 .overlay( |
| 26 | 72 Image(uiImage: UIImage(contentsOfFile: flagPath)!) |
| 21 | 73 .resizable() |
| 26 | 74 .scaledToFit() |
| 75 .cornerRadius(20) | |
| 76 .shadow(radius: 10) | |
| 77 .padding() | |
| 20 | 78 ) |
| 8 | 79 } |
| 0 | 80 } |
| 81 } | |
| 82 | |
| 83 Spacer() | |
| 84 } | |
| 85 .padding() | |
| 86 } | |
| 87 } | |
| 88 .navigationBarHidden(true) | |
| 26 | 89 .modifier(GameAlertsModifier(gameController: gameController, gameType: .guessTheFlag, moc: moc)) |
| 0 | 90 } |
| 91 } | |
| 92 | |
| 93 struct GuessTheFlagView_Previews: PreviewProvider { | |
| 94 static var previews: some View { | |
| 7 | 95 GuessTheFlagView() |
| 0 | 96 } |
| 97 } |