var id: Self { self }

import SwiftUI

struct SettingView: View {
    @AppStorage("Timelimit") var timelimit: TimeInterval = 120
    @AppStorage("VibrationInterval") var vibrationInterval: TimeInterval = 60
    @State var selectedTimelimit: Timelimit = .two
    @State var selectedVibrationInterval: TimeInterval = 60
    
    var body: some View {
        VStack {
            HStack() {
                Text("Time\nlimit")
                Picker("", selection: $selectedTimelimit) {
                    ForEach(Timelimit.allCases) {
                        Text($0.title)
                    }
                }
                .onChange(of: selectedTimelimit) {
                    
                }
                Text("min")
            }
            HStack() {
                Text("Interval")
                Picker("", selection: $selectedVibrationInterval) {
                    ForEach(1..<101) {
                        Text(String($0))
                    }
                }
                .onChange(of: vibrationInterval) {
                    // …
                }
                Text("sec")
            }
        }
        .onAppear {
            selectedTimelimit = Timelimit(interval: timelimit)
            selectedVibrationInterval = vibrationInterval
        }
    }
}

Self care
Guide users through relatively brief activities. These activities focus on the user’s emotional well-being or health, such as brushing their teeth.

Mindfulness
Help users start and end silent meditation sessions. For walking meditation, consider using HKWorkoutSession instead. Similarly, if your app plays audio during the entire meditation session, there’s no reason to use a WKExtendedRuntimeSession. The background audio mode provides additional runtime as long as the audio plays. For more information, see Playing Background Audio.

Physical therapy
Guide users through stretching, strengthening, or range-of-motion exercises. If the physical therapy activity is strenuous—for example, riding an exercise bike—consider using an HKWorkoutSession instead.

Smart alarm
Schedule a window of time to monitor the user’s heart rate and motion. The app uses this information to determine the optimal time to play an alarm, usually to wake the user from sleep.

WKInterfaceDevice.current().play(.notification)