Detect when user taps out of or saves on DatePicker - ios

Question

I'm trying to fetch some data on a network call when a user selects a time from DatePicker.
I originally tested using .onChange but this fires every time that changes, and not on the final tap off.
DatePicker("Title", selection: $currentDate, displayedComponents: .hourAndMinute)
.onChange(of: $currentDate) { value in
print(value)
}
I also tried using the didset{} but that also fired on every change too.
#Published var currentDate: Date = Date() {
didSet { print(currentDate) }
}
What I want to do is once the user selects a time, I fire off some functions. I wanted to not do it every cycle in the wheel.
Is there a way to do this in SwiftUI or UIKit importing into SwiftUI?
Please see attached of what I'm looking at:

Answer 1

You could try rolling your own DatePickerView, such as this approach:
struct ContentView: View {
#State private var birthdate = Date()
var body: some View {
DatePickerView(date: $birthdate)
}
}
struct DatePickerView: View {
#Binding var date: Date
#State var hasChanged = false
var body: some View {
ZStack {
Color.white.opacity(0.01).ignoresSafeArea()
.onTapGesture {
if hasChanged {
print("---> do a network call now with: \(date)")
hasChanged = false
}
}
DatePicker("Birth Date", selection: $date, displayedComponents: .hourAndMinute)
.pickerStyle(.wheel)
.onChange(of: date) { val in
hasChanged = true
}
}
}
}