Do not want NavigationView to popup after some tap of the button - if-statement

Question

I am creating an app to give reward stickers for kids. When 10 stickers are collected, I want all stickers are removed from the main view and the image will be shown before removing everything. This image is shown at the 11th click of the button but navigation view to select stickers are also shown on top of this image, which I do not want to be popped up.
Here is my code...
NavigationView {
ZStack {
Image("Greenbase")
.resizable()
.frame(width: self.screenWidth, height: self.screenWidth)
ZStack {
ForEach($stickers) { $sticker in
VStack {
Image(sticker.name)
.resizable()
.frame(width: self.screenWidth*0.2, height: self.screenWidth*0.2)
.offset(x: self.selectedSticker == sticker ? sticker.offset.width + self.dragOffset.width : sticker.offset.width,
y: self.selectedSticker == sticker ? sticker.offset.height + self.dragOffset.height : sticker.offset.height)
.gesture(
DragGesture()
.updating(self.$dragOffset, body: { (value, state, transaction) in
if nil == self.selectedSticker {
self.selectedSticker = sticker
}
state = value.translation
})
.onEnded { value in
sticker.offset.height += value.translation.height + dragOffset.height
sticker.offset.width += value.translation.width + dragOffset.width
self.selectedSticker = nil
}
)
}//vstack
.sheet(isPresented: $isAddingSticker, onDismiss: addSticker) {
StampView(sticker: $selectedSticker)
}//foreach
if counter < 11 {
Button {
isAddingSticker = true
print("button pressed: \(counter)")
counter += 1
}label: {
RoundedRectangle(cornerRadius: 10)
.foregroundColor(Color(red: 55/255, green: 266/255, blue: 213/255))
.frame(width: 300, height: 40, alignment: .center)
.overlay(
Text(" ステッカーをはろう！")
.foregroundColor(Color(red: 41/255, green: 52/255, blue: 98/255))
.font(.title2))
}//button label
}else {
Button{
isAddingSticker = false
counter = 0
removeSticker(at: 1)
}label: {
Image("WellDone")
.resizable()
.frame(width: self.screenWidth*0.5, height: self.screenWidth*0.5)
.scaleEffect(2.0)
.rotationEffect(Angle(degrees: 360 ))
.animation(.easeInOut(duration: 3.0))
}//button label
} //else
}//Hstack
.disabled(isEditing)
}
}//zstack stamps
}//zstac w bc image
}//body
func removeSticker(at index: Int) {
self.stickers.removeAll()//< -- Here
}
func addSticker() {
guard let name = selectedSticker else { return }
withAnimation {
stickers.insert(name, at: 0)
}
}
}//struct
I am still super new to Swift... the question should be very basic but hopefully can find the answer.

Answer 1

I don't think I understand the question correctly, but you can hide the navigation with this modifier at the end of the navigation view.
NavigationView {
...
}.navigationBarHidden(true)