This code does not work, meaning onChange is never called and the variable is not changed when a dropdown option is selected.
struct ExamplePicker: View {
@State var val: Int32 = 2
var body: some View {
HStack {
Menu {
Picker(selection: $val, label: EmptyView()) {
Text("Val1").tag(1)
Text("Val2").tag(2)
Text("Val3").tag(3)
}
} label: {
HStack {
Text("Value: ")
Spacer()
Text(String(format: "%d", val))
Spacer()
}
}
.onChange(of: val) { newSelection in
print(">>> HERE")
}
}
}
}
but if you change val to type Int it works perfectly fine. Int64 also works with no problem.
This looks like a bug to me
>Solution :
It works fine when the tag values of the Picker items have the same type as the state variable. Like this:
Picker(selection: $val, label: EmptyView()) {
Text("Val1").tag(Int32(1))
Text("Val2").tag(Int32(2))
Text("Val3").tag(Int32(3))
}