Revisions to SwiftUI/Swift code for changing item values in an immutable struct

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occurred Apr 24, 2022 at 15:37

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edited Apr 24, 2022 at 9:29

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struct SoundsView: View {
    
    @EnvironmentObject var theme: ThemeManager
    
    //var soundManager = SoundManager()
    @StateObject var soundViewVM = SoundViewViewModel()
    
    var body: some View {
        List {
            ForEach(soundViewVM.sounds) { sound in
                Button {
                    //soundManager.playSound(name: sound.name)
                    soundViewVM.toggleItems(soundItem: sound)

                } label: {
                    HStack(alignment: .center, spacing: 2) {
                        Text(sound.displayName)
                        Spacer()
                        sound.isActive ? Circle().frame(width: 10).foregroundColor(theme.lightColor) : nil
                    }
                }
            }
        }
        .listStyle(.elliptical)
        .navigationTitle {
            HStack {
                Text("Sounds")
                Spacer()
            }
        }
    }
}
```

struct SoundsView: View {
    
    @EnvironmentObject var theme: ThemeManager
    
    //var soundManager = SoundManager()
    @StateObject var soundViewVM = SoundViewViewModel()
    
    var body: some View {
        List {
            ForEach(soundViewVM.sounds) { sound in
                Button {
                    //soundManager.playSound(name: sound.name)
                    soundViewVM.toggleItems(soundItem: sound)

                } label: {
                    HStack(alignment: .center, spacing: 2) {
                        Text(sound.displayName)
                        Spacer()
                        sound.isActive ? Circle().frame(width: 10).foregroundColor(theme.lightColor) : nil
                    }
                }
            }
        }
        .listStyle(.elliptical)
        .navigationTitle {
            HStack {
                Text("Sounds")
                Spacer()
            }
        }
    }
}
```

struct SoundsView: View {
    
    @EnvironmentObject var theme: ThemeManager
    
    //var soundManager = SoundManager()
    @StateObject var soundViewVM = SoundViewViewModel()
    
    var body: some View {
        List {
            ForEach(soundViewVM.sounds) { sound in
                Button {
                    //soundManager.playSound(name: sound.name)
                    soundViewVM.toggleItems(soundItem: sound)

                } label: {
                    HStack(alignment: .center, spacing: 2) {
                        Text(sound.displayName)
                        Spacer()
                        sound.isActive ? Circle().frame(width: 10).foregroundColor(theme.lightColor) : nil
                    }
                }
            }
        }
        .listStyle(.elliptical)
        .navigationTitle {
            HStack {
                Text("Sounds")
                Spacer()
            }
        }
    }
}

deleted 4 characters in body

Source Link

edited Apr 24, 2022 at 8:58

Bjorn Morrhaye

173
4

class SoundViewViewModel: ObservableObject {
    
    @Published var sounds: [SoundModel] = []
    
    init() {
        sounds.append(contentsOf: [
            SoundModel(name: "alarm1", displayName: "Alarm 1", isActive: true),
            SoundModel(name: "alarm2", displayName: "Alarm 2", isActive: false),
            SoundModel(name: "alarm3", displayName: "Alarm 3", isActive: false),
            SoundModel(name: "bird1", displayName: "Bird", isActive: false),
            SoundModel(name: "carhorn1", displayName: "Carhorn", isActive: false),
            SoundModel(name: "fireAlarm1", displayName: "Fire Alarm", isActive: false),
            SoundModel(name: "mellow", displayName: "Mellow", isActive: false),
            SoundModel(name: "meltdown1", displayName: "Meltdown", isActive: false),
            SoundModel(name: "schoolbel1", displayName: "Schoolbel", isActive: false),
            SoundModel(name: "siren1", displayName: "Siren", isActive: false),
            SoundModel(name: "ufo1", displayName: "Ufo", isActive: false),
        ]
        )
    }

    func toggleItems(soundItem: SoundModel) {

        if let index = sounds.firstIndex(where: { $0.id == soundItem.id } ) {
            if !soundItem.isActive {
                sounds[index] = soundItem.updateActiveStateToTrue()
                
            }
        }
        
        for sound in sounds {
            if let index = sounds.firstIndex(where: { $0.id == sound.id && $0.id != soundItem.id }) {
                if sounds[index].isActive {
                    sounds[index] = soundItemsound.updateActiveStateToFalse()
                }
            }
        }
    }
}

class SoundViewViewModel: ObservableObject {
    
    @Published var sounds: [SoundModel] = []
    
    init() {
        sounds.append(contentsOf: [
            SoundModel(name: "alarm1", displayName: "Alarm 1", isActive: true),
            SoundModel(name: "alarm2", displayName: "Alarm 2", isActive: false),
            SoundModel(name: "alarm3", displayName: "Alarm 3", isActive: false),
            SoundModel(name: "bird1", displayName: "Bird", isActive: false),
            SoundModel(name: "carhorn1", displayName: "Carhorn", isActive: false),
            SoundModel(name: "fireAlarm1", displayName: "Fire Alarm", isActive: false),
            SoundModel(name: "mellow", displayName: "Mellow", isActive: false),
            SoundModel(name: "meltdown1", displayName: "Meltdown", isActive: false),
            SoundModel(name: "schoolbel1", displayName: "Schoolbel", isActive: false),
            SoundModel(name: "siren1", displayName: "Siren", isActive: false),
            SoundModel(name: "ufo1", displayName: "Ufo", isActive: false),
        ]
        )
    }

    func toggleItems(soundItem: SoundModel) {

        if let index = sounds.firstIndex(where: { $0.id == soundItem.id } ) {
            if !soundItem.isActive {
                sounds[index] = soundItem.updateActiveStateToTrue()
                
            }
        }
        
        for sound in sounds {
            if let index = sounds.firstIndex(where: { $0.id == sound.id && $0.id != soundItem.id }) {
                if sounds[index].isActive {
                    sounds[index] = soundItem.updateActiveStateToFalse()
                }
            }
        }
    }
}

class SoundViewViewModel: ObservableObject {
    
    @Published var sounds: [SoundModel] = []
    
    init() {
        sounds.append(contentsOf: [
            SoundModel(name: "alarm1", displayName: "Alarm 1", isActive: true),
            SoundModel(name: "alarm2", displayName: "Alarm 2", isActive: false),
            SoundModel(name: "alarm3", displayName: "Alarm 3", isActive: false),
            SoundModel(name: "bird1", displayName: "Bird", isActive: false),
            SoundModel(name: "carhorn1", displayName: "Carhorn", isActive: false),
            SoundModel(name: "fireAlarm1", displayName: "Fire Alarm", isActive: false),
            SoundModel(name: "mellow", displayName: "Mellow", isActive: false),
            SoundModel(name: "meltdown1", displayName: "Meltdown", isActive: false),
            SoundModel(name: "schoolbel1", displayName: "Schoolbel", isActive: false),
            SoundModel(name: "siren1", displayName: "Siren", isActive: false),
            SoundModel(name: "ufo1", displayName: "Ufo", isActive: false),
        ]
        )
    }

    func toggleItems(soundItem: SoundModel) {

        if let index = sounds.firstIndex(where: { $0.id == soundItem.id } ) {
            if !soundItem.isActive {
                sounds[index] = soundItem.updateActiveStateToTrue()
                
            }
        }
        
        for sound in sounds {
            if let index = sounds.firstIndex(where: { $0.id == sound.id && $0.id != soundItem.id }) {
                if sounds[index].isActive {
                    sounds[index] = sound.updateActiveStateToFalse()
                }
            }
        }
    }
}

added 2 characters in body

Source Link

edited Apr 24, 2022 at 8:08

Bjorn Morrhaye

173
4

struct SoundsView: View {
    
    @EnvironmentObject var theme: ThemeManager
    
    //var soundManager = SoundManager()
    @StateObject var soundViewVM = SoundViewViewModel()
    
    var body: some View {
        List {
            ForEach(soundViewVM.sounds) { sound in
                Button {
                    //soundManager.playSound(name: sound.name)
                    soundDatasoundViewVM.toggleItems(soundItem: sound)

                } label: {
                    HStack(alignment: .center, spacing: 2) {
                        Text(sound.displayName)
                        Spacer()
                        sound.isActive ? Circle().frame(width: 10).foregroundColor(theme.lightColor) : nil
                    }
                }
            }
        }
        .listStyle(.elliptical)
        .navigationTitle {
            HStack {
                Text("Sounds")
                Spacer()
            }
        }
    }
}
```

struct SoundsView: View {
    
    @EnvironmentObject var theme: ThemeManager
    
    //var soundManager = SoundManager()
    @StateObject var soundViewVM = SoundViewViewModel()
    
    var body: some View {
        List {
            ForEach(soundViewVM.sounds) { sound in
                Button {
                    //soundManager.playSound(name: sound.name)
                    soundData.toggleItems(soundItem: sound)

                } label: {
                    HStack(alignment: .center, spacing: 2) {
                        Text(sound.displayName)
                        Spacer()
                        sound.isActive ? Circle().frame(width: 10).foregroundColor(theme.lightColor) : nil
                    }
                }
            }
        }
        .listStyle(.elliptical)
        .navigationTitle {
            HStack {
                Text("Sounds")
                Spacer()
            }
        }
    }
}
```

struct SoundsView: View {
    
    @EnvironmentObject var theme: ThemeManager
    
    //var soundManager = SoundManager()
    @StateObject var soundViewVM = SoundViewViewModel()
    
    var body: some View {
        List {
            ForEach(soundViewVM.sounds) { sound in
                Button {
                    //soundManager.playSound(name: sound.name)
                    soundViewVM.toggleItems(soundItem: sound)

                } label: {
                    HStack(alignment: .center, spacing: 2) {
                        Text(sound.displayName)
                        Spacer()
                        sound.isActive ? Circle().frame(width: 10).foregroundColor(theme.lightColor) : nil
                    }
                }
            }
        }
        .listStyle(.elliptical)
        .navigationTitle {
            HStack {
                Text("Sounds")
                Spacer()
            }
        }
    }
}
```

added 2 characters in body

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edited Apr 24, 2022 at 8:02

Bjorn Morrhaye

173
4

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edited Apr 24, 2022 at 7:55

Bjorn Morrhaye

173
4

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edited Apr 24, 2022 at 7:47

Bjorn Morrhaye

173
4

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edited Apr 24, 2022 at 7:42

Bjorn Morrhaye

173
4

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asked Apr 24, 2022 at 7:36

Bjorn Morrhaye

173
4

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