Ios 将.environmentObject与以工作表形式显示的视图一起使用会导致onReceive不触发/与@environmentObject冲突

在我的

ContentView

中，我有一个按钮，用于显示我的

设置视图的简单
工作表。当视图以模式显示时，与my
@Environment Object var iconSettings:IconNames
中的my
@Environment var iconSettings:IconNames
似乎存在一些冲突，其中my
onReceive
函数仅在视图首次加载时触发，而在使用
选择器时从不触发

环顾四周寻找与此相关的答案，我只能找到一些与CoreData相关的东西，这些东西并没有真正的帮助，但我相信其他人也经历过这一点，所以如果有一些规范的、更一般的东西供其他人参考，那将是非常棒的

谢谢

Button(action: { self.modalDisplayed = true }) {
   Assets.gear
}.sheet(isPresented: $modalDisplayed) {
   SettingsView(state: self.state, loadCards: self.load)
      .environmentObject(IconNames())
}

在我的设置视图中，我有以下内容：

struct SettingsView: View {
    @ObservedObject var state: AppState

    @EnvironmentObject var iconSettings: IconNames

    let loadCards: () -> Void

    var body: some View {
        VStack {
            Picker("", selection: $iconSettings.currentIndex) {
                ForEach(Publication.allCases, id: \.pubId) {
                    Text($0.pubName).tag($0.pubId)
                }
            }
            .pickerStyle(SegmentedPickerStyle())
            .padding(20)
            Spacer()
        }
        .onReceive([self.iconSettings.currentIndex].publisher.first()) { value in
            print(value) // only hits on first load, never on tap
            print("")
            let index = self.iconSettings.iconNames.firstIndex(of: UIApplication.shared.alternateIconName) ?? 0
            if index != value { UIApplication.shared.setAlternateIconName(self.iconSettings.iconNames[value]) { error in
                    if let error = error {
                        print(error.localizedDescription)
                    } else {
                        print("Success!")
                    }
                }
            }
        }
    }
}

最后，我的IconNames课程：

class IconNames: ObservableObject {
    var iconNames: [String?] = [nil]
    @Published var currentIndex = 0

    init() {
        getAlternateIconNames()

        if let currentIcon = UIApplication.shared.alternateIconName {
            self.currentIndex = iconNames.firstIndex(of: currentIcon) ?? 0
        }
    }

    func getAlternateIconNames() {
        if let icons = Bundle.main.object(forInfoDictionaryKey: "CFBundleIcons") as? [String: Any],
            let alternateIcons = icons["CFBundleAlternateIcons"] as? [String: Any]
        {

             for (_, value) in alternateIcons{

                 guard let iconList = value as? Dictionary<String,Any> else{return}
                 guard let iconFiles = iconList["CFBundleIconFiles"] as? [String]
                     else{return}

                 guard let icon = iconFiles.first else{return}
                 iconNames.append(icon)
             }
        }
    }

}

class图标名：observeObject{
变量图标名称：[字符串？]=[nil]
@已发布变量currentIndex=0
init（）{
getAlternateConNames（）
如果让currentIcon=UIApplication.shared.AlternateConName{
self.currentIndex=iconNames.firstIndex（of:currentIcon）？？0
}
}
func getAlternateConNames（）{
如果让icons=Bundle.main.object（forInfoDictionaryKey:“Cbundleicons”）作为？[String:Any]，
让AlternateCons=图标[“CbundLeaAlternateCons”]作为？[字符串：任意]
{
用于替换项中的（_，值）{
guard let iconList=值为？Dictionary else{return}
guard let iconFiles=iconList[“CbundleIConfiles”]作为？[String]
else{return}
guard let icon=iconfile.first-else{return}
iconNames.append（图标）
}
}
}
}
好吧，由于提供的代码快照不可通过复制粘贴进行测试，因此只能通过读取代码来测试，请尝试，而不是

.onReceive([self.iconSettings.currentIndex].publisher.first()) { value in

用这个

.onReceive(self.iconSettings.$currentIndex) { value in