如何在SwiftUI中为按钮创建触觉反馈? [英] How to create haptic feedback for a Button in SwiftUI?

问题描述

我正在尝试在SwiftUI中为Button轻按开始时实现触觉反馈.因此，我正在尝试同时使用手势，但是我仍在挣扎.我无法弄清楚水龙头何时开始.

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 manage to figure out when the tap begins.

还没有为Swift UI实施触觉反馈，所以我想我可以从UIKit中将其融合进来?

Also there is no Haptic feedback implemented for Swift UI, so I guess I would blend it in from UIKit?

我试图实现TapGesture的更新方法，但它似乎无能为力.到目前为止，这就是我所得到的.谢谢你的提示.

I tried to implement the updating method of the TapGesture but it does not seem to do anything. This is what I've got so far. Thanks for any hints.

struct HapticButton : View {

    @GestureState var isDetectingTap = false

    var body: some View {

        let tap = TapGesture()
            .updating($isDetectingTap) { (body, stateType, transaction) in
                // nothing happens below
                print(body)
                print(stateType)
                print(transaction)
            }.onEnded { _ in
                // this one works but it is to late
                // I need to figure out the beginning of the tap
                print("Button was tapped, will invoke haptic feedback, maybe with UIKit")
        }

        return Button(action: {
            print("Action executed")
        }) {
            HStack {
                Image("icon")
                Text("Login")
            }
        }.simultaneousGesture(tap)
    }
}

推荐答案

据我所知，这是在SwiftUI中获取触觉反馈的最简单方法

As I know, this is the most simplest way to get haptic feedback in SwiftUI

点击按钮时:

Button(action: {
    let impactMed = UIImpactFeedbackGenerator(style: .medium)
    impactMed.impactOccurred()
}) {
    Text("This is a Button")
}

您可以通过将 .medium 替换为 .soft ， .light ， .heavy 或 .rigid

You can change the intensity of the haptic feedback by replacing .medium with .soft, .light, .heavy, or .rigid

或在点击其他任何内容时:

.onTapGesture {
 let impactHeavy = UIImpactFeedbackGenerator(style: .heavy)
            impactHeavy.impactOccurred()
}

如果您想制作类似Haptic Touch的内容，请像这样用 .onLongPressGesture 替换 .onTapGesture

If you want to make something like Haptic Touch, replace .onTapGesture with .onLongPressGesture like this

.onLongPressGesture {
 let impactHeavy = UIImpactFeedbackGenerator(style: .heavy)
            impactHeavy.impactOccurred()
}

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