嘿，在我的应用程序中，我正在尝试存储用户是否希望某个位置成为其最喜欢的位置。为了在此 UserDefaults 中进行更改，我需要使用 @AppStorage 更新视图。但是，目前我只收到错误“在调用初始化程序时没有完全匹配”我是否需要使用数据而不是 [String: String]，如果是的话如何？有谁知道如何解决这一问题？提前致谢
import SwiftUI
struct SpotDetailView: View {
@State var spot: WindApp //knows which spot it's at
var spotname:String
//@State var favourites: [String:String] = UserDefaults.standard.object(forKey: "heart") as? [String:String] ?? [:]
@AppStorage("heart") var favourites: [String: String] = [:]
var body: some View {
ZStack {
List {
SpotMapView(coordinate: spot.locationCoordinate)
.cornerRadius(8)
ForEach(0..<9) { i in
SingleDayView(spot: spot, counter: (i * 8))
}
}
.navigationTitle("\(spot.spot)")
VStack {
Spacer()
HStack {
Spacer()
Button(action: {
if favourites[spot.spot] == "heart" {
favourites[spot.spot] = "heart.fill"
UserDefaults.standard.set(favourites, forKey: "heart")
}
else if favourites[spot.spot] == "heart.fill" {
favourites[spot.spot] = "heart"
UserDefaults.standard.set(favourites, forKey: "heart")
}
else {
favourites[spot.spot] = "heart.fill"
UserDefaults.standard.set(favourites, forKey: "heart")
}
}, label: {
Image(systemName: favourites[spot.spot] ?? "heart")
})
.frame(width: 20, height: 20)
}
}
}
}
}