复合类更改变量后重新加载视图

Question

I'm new in Swift and I'm trying to do my project more object oriented.

Im making app for using DJI SDK, and I'm trying to change some things in view when some variable changes in composite class.

So I have: Code in AppController:

@main
struct AppController: App {
  @State var djiService = ProductCommunicationService()

  var body: some Scene {
    WindowGroup {
      InfoFormView(djiService: $djiService, rcEngineConn: $rcEngineConn,   bridgeStatus: $bridgeStatus, fpvMode: $fpvMode, libMode: $libMode)
        
    }
}

And in ProductCommunicationService there is few variables and logic

class ProductCommunicationService: NSObject {

    @Published var registered = false
    @Published var connected = false
    @Published var enableBridgeMode = false
    @Published var bridgeAppIP = "0.0.0.0"
    
    func registerWithSDK() {
    .....

What I'm trying to do, is refresh view I have below when som variable in ProductCom.. class changes

struct InfoFormView: View {

@Binding var djiService : ProductCommunicationService
@Binding var rcEngineConn : Bool
@Binding var bridgeStatus : Bool
@Binding var fpvMode : Bool
@Binding var libMode : Bool

var body: some View {
    HStack(alignment: .top){
        VStack(alignment: .leading, spacing: 20) {
            Text("CR Fly Beta").font(.title).bold()
            Text("Connected to aircraft: " + (self.djiService.connected ? "Yes": "No")).font(.title)
            Text("Connected to RC: " + (self.rcEngineConn ? "Yes": "No")).font(.title)
            Text("Bridge Mode Status: " + (self.djiService.enableBridgeMode ? "On" : "Off")).font(.title)
            HStack(){
                if(self.djiService.connected){
                    Button("Lets FLY!"){
                        self.fpvMode = true
                    }.buttonStyle(.bordered).font(.title2)
                
                    Button("Photo Library"){
                        self.libMode = true
                    }.buttonStyle(.bordered).font(.title2)
                }
            }

Is there any way to refresh it when variable changes? I tried everything, also creating ProductComService with inserted variables(which didn't work because of @State)

Answer 1

So I figured it out.

I created a new object of data myObject with implementation of ObservableObject.

This object contained just variables with @Pubslished.

Then in appController I stored @ObservableObject myObject = myObject()

And bridged it to a view and productCommServise.

Don't forget o @Published and @ObservableObject every where you initialize it