SwiftUI Fundamentals
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OK, you’re nearing the end of the course, but I’ve got one more challenge for you. It’s focused primarily on adding some look and feel options to the FaveFlicks app with an @ObservableObject, but it also requires you to add some new @State properties, a new modal view, and to build a little user interface - things you should know well after viewing the course so far!
class LookAndFeelStore: ObservableObject {
@Published var currentLookAndFeelInfo = LookAndFeelInfo(accentColor: Color.blue, symbolName: "star")
}
struct LookAndFeelInfo {
let accentColor: Color
let symbolName: String
}
@ObservedObject var lookAndFeelStore: LookAndFeelStore
@State private var accentColor = Color.red
@State private var symbolName = ""
.onAppear {
accentColor = lookAndFeelStore.currentLookAndFeelInfo.accentColor
symbolName = lookAndFeelStore.currentLookAndFeelInfo.symbolName
}
func updateLookAndFeelInfo() {
let newLookAndFeelInfo = LookAndFeelInfo(accentColor: accentColor, symbolName: symbolName)
lookAndFeelStore.currentLookAndFeelInfo = newLookAndFeelInfo
}
@ObservedObject var lookAndFeelStore: LookAndFeelStore
\(lookAndFeelStore.currentLookAndFeelInfo.symbolName)
RatingView(lookAndFeelStore: LookAndFeelStore(), rating: 4.5)
RatingView(lookAndFeelStore: lookAndFeelStore, rating: rating)
@ObservedObject var lookAndFeelStore: LookAndFeelStore
RatingView(lookAndFeelStore: lookAndFeelStore, rating: rating)
@ObservedObject var lookAndFeelStore: LookAndFeelStore
@ObservedObject var lookAndFeelStore = LookAndFeelStore()
var body: some View {
NavigationView {
List {
ForEach(movieStore.movies, id: \.title) {
MovieRow(movie: $0, 🟢lookAndFeelStore: lookAndFeelStore)
}
}
.sheet(isPresented: $isPresented) {
AddMovie(movieStore: movieStore, showModal: $isPresented, lookAndFeelStore: lookAndFeelStore)
}
🟢.sheet(isPresented: $isLookAndFeelPresented) {
LookAndFeelView(lookAndFeelStore: lookAndFeelStore)
}
.navigationBarTitle(Text("Fave Flicks"))
.navigationBarItems(
leading:
NavigationLink(destination: UserView(userStore: userStore)) {
HStack {
Text(userStore.currentUserInfo.userName)
Image(systemName: "person.fill")
}
},
trailing:
🟢HStack {
🟢Button(action: { isLookAndFeelPresented.toggle() }) {
Image(systemName: "gear")
}
Button(action: { isPresented.toggle() }) {
Image(systemName: "plus")
}
}
)
}
🟢.accentColor(lookAndFeelStore.currentLookAndFeelInfo.accentColor)
}
}