CODEWITHSUNDEEP
iosswiftswiftui
DanielRM
DanielRM

Reputation: 666

Navigate to different View depending on user input

I am asking the user for permission to access his location and would like to redirect him to ViewA if he accepts or ViewB if he refuses to give location access. What would be the best way to go around this? Thanks in advance.

VIEW

struct UserPermissionView: View {
@ObservedObject var viewModel: UserPermissionViewModel

init(viewModel: UserPermissionViewModel) {
    self.viewModel = viewModel
}

var body: some View {
    NavigationView {
        ZStack {
            WeatherViewProperties.bgColors["clear sky"]
            .edgesIgnoringSafeArea(.all)
            
            GeometryReader { geometry in
                VStack(alignment: .center) {
                    Image("weatherpermission")
                    Text("Hey! We need permission to access your location!").fixedSize(horizontal: false, vertical: true).font(.title)
                    .frame(maxWidth: geometry.size.width * 0.80)
                    
                    Button(action: {
                        self.viewModel.requestAuthorisation()
                    }) {
                        Text("Grant Location")
                    }
                }
            }
        }
    }
}

VIEWMODEL

class UserPermissionViewModel: NSObject, ObservableObject {
let locationManager = CLLocationManager()
@Published var authorisationStatus: CLAuthorizationStatus = .notDetermined

override init() {
    super.init()
    self.locationManager.delegate = self
}

public func requestAuthorisation(always: Bool = false) {
    if always {
        self.locationManager.requestAlwaysAuthorization()
    } else {
        self.locationManager.requestWhenInUseAuthorization()
    }
}

Upvotes: 0

Views: 47

Answers (1)

pawello2222
pawello2222

Reputation: 54426

You can try using a @ViewBuilder:

struct ContentView: View {
    @ObservedObject var viewModel: UserPermissionViewModel

    init(viewModel: UserPermissionViewModel) {
        self.viewModel = viewModel
    }

    var body: some View {
        NavigationView {
            content
        }
    }

    @ViewBuilder
    var content: some View {
        switch viewModel.authorisationStatus {
        case .notDetermined:
            requestPermissionView
        case .denied:
            Text("denied")
        default:
            Text("...")
        }
    }

    var requestPermissionView: some View {
        ZStack {
            WeatherViewProperties.bgColors["clear sky"]
            .edgesIgnoringSafeArea(.all)
            
            ...
        }
    }
}

Upvotes: 1

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