Why is my custom view not printing something inside this onTapGesture? - swiftui

Question

HomeView
import SwiftUI
struct HomeView: View {
#State private var mapState = MapViewState.noInput
#EnvironmentObject var locationViewModel: LocationSearchViewModel
#EnvironmentObject var launchScreenManager : LaunchScreenManager
var body: some View {
ZStack(alignment: .bottom) {
ZStack(alignment: .top) {
UberMapViewRepresentable(mapState: $mapState )
.ignoresSafeArea()
if mapState == .searchingForLocation{
LocationSearchView(mapState: $mapState)
} else if mapState == .noInput {
LocationSearchActivationView()
.padding(.top, 72)
.onTapGesture{
withAnimation(.spring()) {
mapState = .searchingForLocation
}
}
}
MapViewActionButton(mapState: $mapState)
.padding(.leading)
.padding(.top, 4)
.onTapGesture{
print("Why isn't this printing?")
}
}
if mapState == .locationSelected || mapState == .polylineAdded{
RideRequestView()
.transition(.move(edge: .bottom))
}
}
.edgesIgnoringSafeArea(.bottom)
.onReceive(LocationManager.shared.$userLocation) { location in
if let location = location {
locationViewModel.userLocation = location
}
}
.onAppear{
DispatchQueue
.main
.asyncAfter(deadline: .now() + 2) {
launchScreenManager.dismiss()
}
}
}
}
struct HomeView_Previews: PreviewProvider {
static var previews: some View {
HomeView()
}
}
MapViewActionButton
import SwiftUI
struct MapViewActionButton: View {
#Binding var mapState: MapViewState
#EnvironmentObject var viewModel : LocationSearchViewModel
var body: some View {
Button {
withAnimation(.spring()) {
actionForState(mapState)
}
} label: {
Image(systemName: imageNameForState(mapState))
.font(.title2)
.foregroundColor(.black)
.padding()
.background(.white)
.clipShape(Circle())
.shadow(color: .black, radius: 6)
}
.frame(maxWidth: .infinity, alignment: .leading)
}
func actionForState(_ state: MapViewState) {
switch state {
case .noInput:
print("no input")
case .searchingForLocation:
mapState = .noInput
case .locationSelected, .polylineAdded:
mapState = .noInput
viewModel.selectedUberLocation = nil
}
}
func imageNameForState(_ state: MapViewState) -> String {
switch state {
case .noInput:
return "line.3.horizontal"
case .searchingForLocation, .locationSelected, .polylineAdded:
return "arrow.left"
}
}
}
struct MapViewActionButton_Previews: PreviewProvider {
static var previews: some View {
MapViewActionButton(mapState: .constant(.noInput))
}
}
I understand that maybe not all this code is relevant but basically when I am adding an onTapGesture to MapViewActionButton and printing something, it doesn't print? Does anybody know why this can be happening?
enter image description here
If I add a background(.red) modifier to my MapViewActionButton it seems it's not going over just the button(presumably because I am setting the frame width to infinity but how come it's not when I tap the image itself it's not detecting the tap gesture?
I tried playing around with this a lot but I couldn't really figure out why this was happening.

Answer 1

By using this you can use print anywhere in code. If there is no other issue.
let _ = print("Why isn't this printing?")

Answer 2

You can try something like this
Button("Button") {
print("tapped")
}
.onTapGesture{
print("Why isn't this printing?")
}
}