Not sure how best to start a network fetch in a specific case in my SwiftUI code

Question

Created Jul ’20

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I have a button in my swiftUI view that allows users to open a datePicker and then use the selected date to start a network fetch.

The date picker is presented using this code:

Code Block         .sheet(isPresented: $showDatePicker) {
            ModalDatePicker(startDate: self.podcast.earliestDate,
                            endDate: self.podcast.latestDate,
                            currentDate: self.$datePickerDate,
                            isShowing: self.$showDatePicker,
                            doneTapped: self.$dateSelected)
        }

My plan is to use dateSelected to know when the user taps Done rather than cancelling.

But I'm not sure where I need to check dateSelected.
My first thought was in the body method.

Code Block 	if dateSelected {
		dateSelected = false
		startFetch()
	}

But that doesn't seem to compile, and frankly feels wrong.

I also thought of doing this in ModalDatePicker, but that also feels wrong.
I'm guessing the solution will involve combine and perhaps a publisher, but I don't yet understand how to implement this.
Any assistance would be appreciated.
Thanks,
Mike

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Answer 1

mikeTheDad OP

Jul ’20

My current plan is to replace dateSelected with a roll your own binding

Code Block let binding: Binding<Bool>: {
	return Binding<Bool>(
	get: {
		return false
	},
	set: {
		if $0 {
			startFetch()
		})

Doesn't feel great, but it appears to work

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