How to drag an image behind an image using SwiftUI - ios

Question

hopefully anyone of you can help me and give me advice.
I have the task of making a photo editing application with SwiftUI.
In the application there is a feature to remove the background from a person's photo (so only the object of the person), then I created a new UIImage as a layer to replace the background with an image that can be shifted (behind the photo whose background has been removed), so that it is positioned When I tried to drag the new background but I couldn't, because the photo frame that was removed from the background was blocking the new UIImage background.
this is the code i have made.
struct MaskImage: View {
#State var currentPositions = CGPoint.init(x: UIScreen.main.bounds.width/2, y: UIScreen.main.bounds.height/4)
#State var currentPosition = CGPoint.init(x: UIScreen.main.bounds.width/2, y: UIScreen.main.bounds.height/4)
#GestureState private var isDragging = false
var body: some View {
GeometryReader { geo in
HStack {
VStack {
Spacer()
ZStack {
Image("EFFECT-1") // DRAGGABLE PHOTO BACKGROUND
.resizable()
.frame(width: abs(geo.size.width-32), height: 375, alignment: .center)
.position(currentPosition)
.gesture(
DragGesture()
.onChanged { value in
self.currentPosition = value.location
}
.updating($isDragging) { (value, state, transaction) in // 1, 2
state = true
self.currentPosition = value.location
}
)
Image("SEGMENTED_IMAGE_REMOVE_BACKGROUND") // The image that will be the front
.resizable()
.frame(width: abs(geo.size.width - 32), height: abs(round((geo.size.width / 2) * 2.438)), alignment: .center)
}
Spacer()
}
}
.background(Color.red)
}
}
}

Answer 1

You can disable touch interactions for the top image using allowsHitTesting:
Image("SEGMENTED_IMAGE_REMOVE_BACKGROUND") // The image that will be the front
.resizable()
.frame(width: abs(geo.size.width - 32), height: abs(round((geo.size.width / 2) * 2.438)), alignment: .center)
.allowsHitTesting(false)