Adding button to a moving image SwiftUI - swiftui

Question

I have successfully added a button to an image however when I click the button and the image moves via CGAffineTransform, the image moves but the button stays in the same place. When I click the space where the image used to be before the transform, the state toggle reacts. How do I get the button to move along with the image?
struct SliderView: View {
#State var partyType: Bool = false
var body: some View {
ZStack{
GeometryReader{ geo in
VStack(alignment: .leading){
Button(action: {
withAnimation (){
self.partyType.toggle();
}
}) {
Image("chevronPointer")
.clipped()
.modifier(SlideEffect(offset: CGSize(width: partyType ? geo.size.width - 70 : 0, height: 0.0)))
.animation(.smooth())
.padding(.horizontal)
}
Image("sliderLine")
.resizable()
.scaledToFit()
.frame(width: geo.size.width, alignment: /*#START_MENU_TOKEN#*/.center/*#END_MENU_TOKEN#*/)
}
}
.frame(height: 40)
}
}
}
struct SlideEffect: GeometryEffect {
var offset: CGSize
var animatableData: CGSize.AnimatableData {
get { CGSize.AnimatableData(offset.width, offset.height) }
set { offset = CGSize(width: newValue.first, height: newValue.second) }
}
public func effectValue(size: CGSize) -> ProjectionTransform {
return ProjectionTransform(CGAffineTransform(translationX: offset.width, y: offset.height))
}
}
struct SliderView_Previews: PreviewProvider {
static var previews: some View {
SliderView()
}
}

Answer 1

Just move the modifier outside the button.
Button(action: {
withAnimation(){
self.partyType.toggle()
}
}) {
Image(systemName: "chevron.up")
.clipped()
.animation(.default)
.padding(.horizontal)
}
.modifier(SlideEffect(offset: CGSize(width: partyType ? geo.size.width - 70 : 0, height: 0.0))) /// here!