BasicViewProvider.swift

import UIKit
import SwiftUI

@objc
class BasicViewProvider: UIViewController, SwiftUIProvider {
        
    // MARK: INIT
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    required public init() {
        super.init(nibName: nil, bundle: nil)
    }

    public override func viewDidLoad() {
        super.viewDidLoad()
        setupSwiftUIView(content: swiftUIView)
        registerObservers()
    }
    
    // MARK: PRIVATE

    private var swiftUIView = BasicView()
        
    private func registerObservers() {
        swiftUIView.props.incrementCount = {
            let count = self.swiftUIView.props.count + 1
            // update swiftUI view
            self.swiftUIView.props.count = count
            // notify nativescript
            self.onEvent?(["count": count])
        }
    }

    // MARK: API

    /// Receive data from NativeScript
    func updateData(data: NSDictionary) {
        if let count = data.value(forKey: "count") as? Int {
            // update swiftUI view
            swiftUIView.props.count = count
            // notify nativescript
            self.onEvent?(["count": count])
        }
    }
    
    /// Send data to NativeScript
    var onEvent: ((NSDictionary) -> ())?
}