sensoryFeedback(_:trigger:condition:)

Declaration

nonisolated func sensoryFeedback<T>(_ feedback: SensoryFeedback, trigger: T, condition: @escaping (T, T) -> Bool) -> some View where T : Equatable

Parameters

• feedback:

  Which type of feedback to play.

• trigger:

  A value to monitor for changes to determine when to play.

• condition:

  A closure to determine whether to play the feedback when trigger changes.

Discussion

For example, you could play feedback for certain state transitions:

struct MyView: View {
    @State private var phase = Phase.inactive

    var body: some View {
        ContentView(phase: $phase)
            .sensoryFeedback(.selection, trigger: phase) { old, new in
                old == .inactive || new == .expanded
            }
    }

    enum Phase {
        case inactive
        case preparing
        case active
        case expanded
    }
}

When the value changes, the new version of the closure will be called, so any captured values will have their values from the time that the observed value has its new value.

See Also

Providing haptic feedback

• sensoryFeedback(_:trigger:)
• sensoryFeedback(trigger:_:)
• SensoryFeedback