Structure

LongPressGesture

A gesture that succeeds when the user performs a long press. あるジェスチャ、それはユーザが長押しを実行する時に成功します。

Declaration 宣言

struct LongPressGesture

Overview 概要

To recognize a long-press gesture on a view, create and configure the gesture, then add it to the view using the gesture(_:including:) modifier.

Add a long-press gesture to a Circle to animate its color from blue to red, and then change it to green when the gesture ends:

struct LongPressGestureView: View {
    @GestureState var isDetectingLongPress = false
    @State var completedLongPress = false


    var longPress: some Gesture {
        LongPressGesture(minimumDuration: 3)
            .updating($isDetectingLongPress) { currentState, gestureState,
                    transaction in
                gestureState = currentState
                transaction.animation = Animation.easeIn(duration: 2.0)
            }
            .onEnded { finished in
                self.completedLongPress = finished
            }
    }


    var body: some View {
        Circle()
            .fill(self.isDetectingLongPress ?
                Color.red :
                (self.completedLongPress ? Color.green : Color.blue))
            .frame(width: 100, height: 100, alignment: .center)
            .gesture(longPress)
    }
}

Topics 話題

Creating a Long Press Gesture

init(minimumDuration: Double)

Creates a long-press gesture with a minimum duration

init(minimumDuration: Double, maximumDistance: CGFloat)

Creates a long-press gesture with a minimum duration and a maximum distance that the interaction can move before the gesture fails. ある長押しゼスチャをある最小期間と、ジェスチャが失敗する前にその相互作用が動ける最大間隔で作成します。

var minimumDuration: Double

The minimum duration of the long press that must elapse before the gesture succeeds. ジェスチャが成功する前に経過しなければならない長押しの最小期間。

var maximumDistance: CGFloat

The maximum distance that the long press can move before the gesture fails. ジェスチャが失敗する前に長押しが動くことができる最大の間隔。