SwiftUI Gestures prevent scrolling with iOS 18

Thanks for flagging this @shiftingsand. Your bug report is being investigated, please continue to test on the latest beta and verify if you still see the same behavior or not and include your results as part of your bug report.

No change with Version 16.0 beta 5 (16A5221g).

No change with Version 16.0 beta 6 (16A5230g).

I also have this issue, no change in Xcode 16 RC and iOS 18 RC. this is very disappointing and will break a lot of apps. What's up apple? Or am I missing something how to fix this?

I have a horizontal scroll view and each view has a drag gesture which on vertical drag would dismiss the view. This worked in iOS 17.5 and Xcode 15.4 but not on the latest as I mention above.

My fix is to use .simultaneousGesture rather than just .gesture modifier block, it seems to work and the view is more dynamic as the horizontal scroll and individual view's drag gestures work together simultaneously rather than one or the other. Is this the intended behavior Apple wants? That's fine, but more explanation and documentation would really go a long way to help here.

Suffering the same, all our app is broken, and using .simultaneousGesture unlocks a dance of gestures.

Same problem in my app. I develop a comic read app, use UIPageViewController as basic reader. And I add a clear layer with tap gesture, when user tap center area, will open a control panel to adjust reading preference. But now I can't scroll UIPageViewController by swipe gesture.

here is a simple version of my code:

struct TestFunctionView: View {
    var body: some View {
        ZStack {
            TabView {
                Text("1")
                Text("2")
            }
            .tabViewStyle(.page)
            
            Rectangle()
                .foregroundColor(.clear)
                .contentShape(Rectangle())
                .onTapGesture(count: 1){
                    print("Tap")
                }
        }
    }
}

In iOS 17, both tap and scroll gesture can be trigger. but in iOS 18, it's not.

Really help apple can fix it, or it there another way to code my requirement?

C'mon Apple really?!

I have Images array with option to swipe horizontally and tap gesture to open image sometimes works some times it doesn't.

I found a solution:

.highPriorityGesture(
        TapGesture()
            .onEnded {
                // Tap logic
            }
    )

The real problem is that I need to check every tap gesture in my app because some works some doesn't... fix this quick!

iOS 18.0 (public)

Same here; all ScrollViews containing elements with DragGesture() don't scroll properly and this is causing major headaches. I've switched some from .highPriorityGesture() to .simultaneousGesture() as a stopgap measure.

To provide more information, it seems that .gesture() is not recognized on the current view but on the previous view in the navigation stack on an iOS 18 device.

I happened to support two different customized zoom gestures in my two views in the navigation stack, both are implemented based on .MagnifyGesture().

When I zoom on the second page, nothing happens; but when I navigated back to the previous page, I saw the zoom gesture had been triggered.

iOS 18.0, my app's custom implementation of swipeActions() for any views within vertical ScrollView is broken. Scroll through the a bunch of views on several screens is a pain now, because my highPriorityGestures is conflicting with ScrollView.

It works perfectly in iOS 16 and 17. The only thing I managed to do with this in iOS 18 is to increase minimumDistance for DragGesture, but this is just hiding the problem, not solving it.

It's great to have UIGestureRecognizerRepresentable now, but I hope it is not meaning that we have to handle all gestures in UIKit-way instead of SwiftUI-way, isn't it?

if you facing ScrollViews blocked ur tap/long press handle. u can try this code:

struct TestView: View {
    var body: some View {
        ZStack {
            Button("") {
                // Your tap press handler
                print("tap press")
            }
            
            // Replace Rectangle with the view you need
            Rectangle()
                .foregroundStyle(Color.white.opacity(0.011))
                .gesture(
                    LongPressGesture(minimumDuration: 0.5)
                        .onEnded { _ in
                            // Your long press handler
                            print("long press")
                        }
                )
        }
        .highPriorityGesture(
            TapGesture().sequenced(before: DragGesture())
        )
    }
}

the important code is add TapGesture().sequenced(before: DragGesture()) inside highPriorityGesture and handle the tap press inside Button action.

I'm still experiencing this issue. I need highPriorityGesture to prevent the subview gesture, but it's overriding the scroll view gesture. Can we cancel the high priority gesture to allow the scroll view to take over? In iOS 17, they work perfectly together.

Currently I set the minimum distance of the high priority gesture to 30, but that's just a workaround I reckon.

Same issue here. Feels like SwiftUI is way less stable than UIKit for having to fix my app every year.

I also have a similar issue. I'm pretty new to swift so there might be some messy code

    private var mediaGridView: some View {
        ScrollView {
            RefreshControl(coordinateSpace: .named("refresh")) {
                //some code here
            }
            LazyVGrid(columns: gridColumns) {
                //some code here
            }
            .padding(.horizontal, 2)
            .coordinateSpace(name: "grid")
            .onPreferenceChange(ItemBoundsPreferenceKey.self) {
                //some code here
            }
            .gesture(
                DragGesture(minimumDistance: 0)
                    .onChanged { gesture in
                        if isSelectionMode {
                            let location = gesture.location
                            if !isDragging {
                                startDragging(at: location, in: itemBounds)
                            }
                            updateSelection(at: location, in: itemBounds)
                        }
                    }
                    .onEnded { _ in
                        endDragging()
                    }
            )
        }
        .coordinateSpace(name: "refresh")
    }

First I catched the issue on an iPhone 11 test device. iPhone 11 on simulator with ios 18 also have this problem while 17.5 simulator won't.

If I change .gesture() to .simultaneousGesture() vertical scrolling starts to work again but now scroll also works while dragging my finger so everything on the screen starts to dance.

Weirdly, the simulator for iPhone 14 Pro Max with iOS 18.2 doesn’t have this issue, but the real device does.

Hope somebody can figure this.

Same issue here... This is so frustrating!