How to create haptic feedback for a Button in SwiftUI?

Question

I\'m trying to implement haptic feedback at the beginning of a tap for a Button in SwiftUI. Therefore I\'m trying to use simultaneousGesture, but I\'m sill struggling. I can\'t

Answer 1

You can use UIFeedbackGenerator like this:

let generator = UINotificationFeedbackGenerator()
generator.notificationOccurred(.error)

Or, as you're using SwiftUI, you'll be able to use CoreHaptics like this:

let engine = try CHHapticEngine()
try engine.start()

let hapticEvent = CHHapticEvent(eventType: .hapticTransient, parameters: [
    CHHapticEventParameter(parameterID: .hapticSharpness, value: sharpness), CHHapticEventParameter(parameterID: .hapticIntensity, value: intensity),
], relativeTime: 0)
let audioEvent = CHHapticEvent(eventType: .audioContinuous, parameters: [
    CHHapticEventParameter(parameterID: .audioVolume, value: volume),
    CHHapticEventParameter(parameterID: .decayTime, value: decay),
    CHHapticEventParameter(parameterID: .sustained, value: 0),
], relativeTime: 0)

let pattern = try CHHapticPattern(events: [hapticEvent, audioEvent], parameters: [])
let hapticPlayer = try engine.makePlayer(with: pattern)
try hapticPlayer?.start(atTime: CHHapticTimeImmediate)