SwiftUI - UITableView cellForRowAtIndexPath never called in UIViewRepresentable custom picker view - uitableview

Question

I'm trying to use UIViewRepresentable to incorporate this picker view from this GitHub repo into my SwiftUI project.
I created a test project to illustrate the issue I'm having. Below is the code necessary to build the project (excluding PickerView, which I'm pulling from here).
Model
struct Fruit {
let name: String
let isInStock: Bool
static let apple = Fruit(name: "apple", isInStock: true)
static let orange = Fruit(name: "orange", isInStock: true)
static let banana = Fruit(name: "banana", isInStock: true)
static let raspberry = Fruit(name: "raspberry", isInStock: false)
static let blueberry = Fruit(name: "blueberry", isInStock: false)
static let lemon = Fruit(name: "lemon", isInStock: true)
static let lime = Fruit(name: "lime", isInStock: false)
}
ContentView
struct ContentView: View {
#State private var fruits: [Fruit] = [.apple, .orange, .banana, .raspberry, .blueberry, .lemon, .lime]
#State private var selectedFruit: Fruit = .apple
var body: some View {
FruitPicker(fruits: self.$fruits, selectedFruit: self.$selectedFruit)
}
}
FruitPicker
struct FruitPicker: UIViewRepresentable {
#Binding var fruits: [Fruit]
#Binding var selectedFruit: Fruit
class Coordinator: NSObject, PickerViewDelegate, PickerViewDataSource {
#Binding var fruits: [Fruit]
#Binding var selectedFruit: Fruit
init(fruits: Binding<[Fruit]>, selectedFruit: Binding<Fruit>) {
self._fruits = fruits
self._selectedFruit = selectedFruit
}
func pickerViewNumberOfRows(_ pickerView: PickerView) -> Int {
return self.fruits.count
}
func pickerViewHeightForRows(_ pickerView: PickerView) -> CGFloat {
return 50
}
func pickerView(_ pickerView: PickerView, titleForRow row: Int) -> String {
return self.fruits[row].name
}
func pickerView(_ pickerView: PickerView, didSelectRow row: Int) {
self.selectedFruit = self.fruits[row]
}
}
func makeCoordinator() -> FruitPicker.Coordinator {
return Coordinator(fruits: self.$fruits, selectedFruit: self.$selectedFruit)
}
func makeUIView(context: UIViewRepresentableContext<FruitPicker>) -> PickerView {
let pickerView = PickerView()
pickerView.delegate = context.coordinator
pickerView.dataSource = context.coordinator
return pickerView
}
func updateUIView(_ pickerView: PickerView, context: UIViewRepresentableContext<FruitPicker>) {
}
}
PickerView uses UITableView to mimic the functionality of UIPickerView but with a flat appearance.
When I run the project, the UITableViewDelegate and UITableViewDataSource methods in PickerView.swift for heightForRowAtIndexPath and numberOfRowsInSection are both called, but cellForRowAtIndexPath is not.
I first tried selecting "Debug View Hierarchy" from the debugging tab, but Xcode crashes every time I do this. So then I set background colors to see if the picker view was appearing on screen at all, and it wasn't, so I put breakpoints inside makeUIView and updateUIView to check PickerView's frame. In both cases, it came back as zero. I tried setting the frame for the picker view in makeUIView, but nothing changed - cellForRowAtIndexPath simply never gets called.
Does anyone have any ideas as to where I'm going wrong or what exactly is causing cellForRowAtIndexPath to never be called?