SwiftUI Navigation Bar Colour

Question

I am trying to build a master/detail type sample application and I'm struggling to get the NavigationBar UI to work correctly in my detail view. The code for the view I am working on is as follows:

struct JobDetailView : View {

    var jobDetails: JobDetails

    var body: some View {

            Form {

                Section(header: Text("General")) {
                    HStack {
                        Text("Job Name")
                        Spacer()
                        Text(jobDetails.jobName)
                            .multilineTextAlignment(.trailing)
                    }

                    HStack {
                        Text("Hourly Rate")
                        Spacer()
                        Text(TextFormatters().currencyString(amount: jobDetails.hourlyRateBasic!))
                            .multilineTextAlignment(.trailing)
                    }
                }

            }   .padding(.top)
                .navigationBarTitle(Text(jobDetails.jobName))
    }
}

The reason for the .padding(.top) is to stop the Form overlapping the navigation bar when scrolling upwards.

The white background on the navigation bar portion my issue (first image), I should expect it to be in keeping with the overall style of the UI, what I expect to happen is shown in the second image.

I have tried to add foreground/background colours and Views to change this colour, but to no avail. I'm also reticent of forcing a colour for the NagivationBar, as this will require further configuration for use with dark mode.

Current view when running application.

Expected view.

Answer 1

There's no available (SwiftUI) API for doing that (yet) (beta 5).

But we could use UINavigationBar.appearance(), as in:

UINavigationBar.appearance().backgroundColor = .clear

Full Code

import SwiftUI

struct JobDetailView: View {

    init() {
        UINavigationBar.appearance().backgroundColor = .clear
    }

    var body: some View {
        NavigationView {
            Form {
                Section(header: Text("General")) {
                    HStack {
                        Text("Job Name")
                        Spacer()
                        Text("Scientist")
                            .multilineTextAlignment(.trailing)
                    }
                    HStack {
                        Text("Hourly Rate")
                        Spacer()
                        Text("$ 1.00")
                            .multilineTextAlignment(.trailing)
                    }
                }

            }
            .navigationBarTitle("Scientist")
            .navigationBarHidden(false)
        }
    }
}

#if DEBUG
struct JobDetailView_Previews: PreviewProvider {
    static var previews: some View {
        JobDetailView()
    }
}
#endif

Result

Dark Mode Result