Hotwire Native for Rails Developers

Connect to Hotwire Native with a View Controller

Under the Controllers folder, create a new Swift file named MapController. As usual, delete the contents. Then import both SwiftUI and UIKit.

Declare a MapController class but don’t inherit from UIViewController. Instead, inherit from UIHostingController<MapView>.

ch05_03/ios/App/Controllers/MapController.swift

import SwiftUI
import UIKit

class MapController: UIHostingController<MapView> {
}

The UI framework we’ve been using up until now is called UIKit. Remember importing UIKit at the top of a few files in previous chapters? From experience, this framework aligns nicely with how Hotwire Native and Rails apps navigate between views. But our map view is built with SwiftUI, ...