SwiftUI Executing a method from a view after confirmation from the subview - swift

Question

Is it technically possible to call a method from a view after getting the confirmation from the subview ? I could call it from the SubStruct if I pass the viewModel and item to it, but I am just curious about the code below which results in
Segmentation Fault: 11
import SwiftUI
struct ContentView: View {
var body: some View {
MainStruct(viewModel: MyViewModel())
}
}
struct MainStruct: View {
#StateObject var viewModel: MyViewModel
#State var functionToPass: ()
let items = ["test1", "test2", "test2"]
var body: some View {
ForEach(items, id: \.self) { (item) in
Text(item).onTapGesture {
functionToPass = viewModel.deleteItem(name: item)
}
}
SubStruct(passedFunction: {functionToPass})
}
struct SubStruct: View {
var passedFunction: () -> Void
var body: some View {
Button(action: {passedFunction()}, label: {
Text("confirm deletion")
})
}
}
}
class MyViewModel: ObservableObject {
func deleteItem(name: String) {
print(name)
///deletion logic
}
}

Answer 1

Try this :
struct MainStruct: View {
#StateObject var viewModel: MyViewModel
#State private var functionToPass: () -> Void = {}
let items = ["test1", "test2", "test2"]
var body: some View {
VStack {
ForEach(items, id: \.self) { item in
Text(item)
.onTapGesture {
functionToPass = {
viewModel.deleteItem(name: item)
}
}
}
SubStruct(passedFunction: functionToPass)
}
}
struct SubStruct: View {
var passedFunction: () -> Void
var body: some View {
Button(action: {
passedFunction()
}, label: {
Text("confirm deletion")
})
}
}
}