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Can SwiftUI be utilized to restrict the touch region for a drag gesture?

asked 2022-03-04 11:00:00 +0000

david gravatar image

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answered 2022-04-26 20:00:00 +0000

bukephalos gravatar image

Yes, SwiftUI provides the ability to restrict the touch region for a drag gesture by using the GestureMask modifier. This modifier allows you to set the areas of the screen where the gesture will be recognized.

For example, to restrict the drag gesture to only be recognized within a specific view, you can apply the GestureMask modifier to that view like this:

VStack {
    Text("Restricted Drag Gesture")
                .onChanged { value in
                    // handle drag gesture
    // Only recognize gesture within the VStack
        gestures: [.drag],
        exclusivity: .gesture,
        mask: VStack.self

In this code snippet, the drag gesture will only be recognized when the user is touching within the VStack. The GestureMask modifier is applied to the outermost view and specifies that only the drag gesture should be recognized within the VStack (using the mask parameter). The exclusivity parameter indicates that the gesture should not be recognized outside of the VStack.

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Asked: 2022-03-04 11:00:00 +0000

Seen: 20 times

Last updated: Apr 26 '22