Building Multiplatform Weather App using KMM : Part 4 — Updating Data on iOS UI

Similar with part 3, we will also updating our data on iOS platform.

First step I will change all data into some variable inside our content view.

struct ContentView: View {
    @State private var place = ""
    @State private var temp = ""
    @State private var description = ""
    
    var api = WeatherAPI();
...

For convenient, I will create function which will called API Function and updating the variable when the function is called successfully.

func retrieveData() {
        // called our API Function & update variable
        api.getWeatherAPIData (successFunction: { it in
            place = it.name ?? "";
            guard let tempDouble = it.main.temp as? Double
             else {
                temp = "error"
                return
            }
            if (temp != "error") {
                temp = String(format: "%.0f", tempDouble - 273.0)}
            guard let weather : Weather = it.weather[0] as? Weather else {
                return
            }
            description = weather.description_ ?? ""
        },
                               failureFunction: { error in
            place = error
        })
    }

On the last step, I will called retrieveData() function when UI appeared

var api = WeatherAPI();
    
    var body: some View {
        Color.black
            .ignoresSafeArea()
            .overlay(
                VStack…