ios – The way to replace the uiview with the progress of sophistication methodology

I’ve a UIView with a listing of things. When one merchandise is deleted from the listing an total variable will probably be recalculated within the mannequin class, which is able to take a while as it’ll go over all information on all of the objects. So as to keep up a correspondence with the consumer I like to point out a progress bar, however for that I would like the share performed from the category to the UIView. I used to be not in a position to learn how to get the share in the course of the recalculation. I’d be very glad if one might level me to the fitting route:

my UIView shorted:

var physique: some View {
Record{
        ForEach(handicapValues, id:.self) {handicapValue in
               NavigationLink(worth:handicapValue,
                              label: {CellRoundView(handicapValue: handicapValue)})
                                .padding(.backside, 1)
                                .swipeActions(allowsFullSwipe: false) {
                                    Button() {
                                        itemToDelete = handicapValue
                                        showingRecalc = true
                                    } label: {
                                        Label("Delete", systemImage: "trash.fill")
                                    }
                                    .tint(.crimson)
                                
                            }  // Finish of .swipeActions()
                            
                        }  // finish foreach
                            
                }.alert(isPresented: $showingRecalc) {
                    Alert(title: Textual content("Delete spherical ?"), message: Textual content("Handicaps will probably be recalculated"), primaryButton: .damaging(Textual content("Delete")) {
                                
                                removeRound(hcValue: itemToDelete!)
                                
                                PersistentController.shared.recalcHCvalues_test(rounds: rounds, loops: loops, handicapValues: handicapValues)
                                userData.myHandicap = spherical(10*handicapValues[handicapValues.count-1].whsHC)/10
                            },
                              secondaryButton: .cancel())
                            
                        }

It’s within the PersistentController Class that I do the calculations for merchandise in objects. I do know the overall variety of objects so it’s straightforward to calculated the share performed. What I would like is: convey this worth again to the UIView to help a progress bar for the consumer to not get impatient.