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I made a game using SwiftUI with normal Button's. I have discovered that my buttons regularly drop inputs, which negatively affects gameplay. I am in the exact situation shown in this link:

Tapping Button Too Quickly causes "Failed to receive system gesture state notification before next touch"

As you can see in the comments of this unsolved problem, using touchesBegan with UIKit seems to be the way to get faster, more responsive buttons.

Is there something else I can do using SwiftUI to fix this issue?

I've tried disabling multitouch but to no avail

struct testView: View {
    var body: some View {
        Text("Press me!")
        .onTapGesture{//do nothing}
    }
}

If I run this view on an iOS device and press this button fast enough, I get the error: "Failed to receive system gesture state notification before next touch"

I am running XCode 14.0 beta and running this button on an iPhone 11

hacky trick which maybe made button presses slightly faster but did not fix error message

@State var pressed = false


Text("Press Me")
.gesture(DragGesture(minimumDistance: 0, coordinateSpace: .global)
    .onChanged { _ in
        if !pressed {
            // mything
            pressed = true
        }
    }
    .onEnded { _ in pressed = false }
)
Randy
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0 Answers0