A SwiftUI view to pick the verbosity of the Logger

LoggerVerbosityPicker.swift

import SwiftUI

struct LoggerVerbosityPicker: View {
    /// User defaults value.
    @AppStorage(Logger.defaultsKey) private var storedSelection: String?
    /// Current selection.
    @State var selection: Logger.Verbosity = Logger.Verbosity.verbose

    var body: some View {
        Picker("Verbosity", selection: $selection) {
            ForEach(Logger.Verbosity.allCases, id: \.self) {
                Text($0.rawValue)
            }
        }
        .pickerStyle(.segmented)
        .onAppear {
            if let storedSelection,
               let verbosity = Logger.Verbosity(rawValue: storedSelection) {
                selection = verbosity
            }
        }
        .onChange(of: selection) { newValue in
            Logger.verbosity = newValue
        }
    }
}