[Custom Eureka Push Row in Swift] Use a custom view controller for a 'push row' #eureka #swift

CustomerPresenterRow.swift

//
//  CustomPresenterRow.swift
//  LinkedNow
//
//  Created by Anson Tsao on 5/3/18.
//  Copyright © 2018 Anson Tsao. All rights reserved.
//

import Foundation
import Eureka

public final class CustomPresenterRow<ControllerType: TypedRowControllerType & UIViewController>: OptionsRow<PushSelectorCell<ControllerType.RowValue>>, PresenterRowType, RowType {
    
    public typealias PresenterRow = ControllerType
    public typealias RowValue = ControllerType.RowValue
    open var presentationMode: PresentationMode<PresenterRow>?
    /// Will be called before the presentation occurs.
    open var onPresentCallback: ((FormViewController, PresenterRow) -> Void)?
    var storyBoardName: String?
    var controllerName: String?
    
    public required init(tag: String?) {
        super.init(tag: tag)
        presentationMode = .show(controllerProvider: ControllerProvider.callback {
            if let storyboardName = self.storyBoardName,
               let controllerName = self.controllerName {
                let storyboard = UIStoryboard(name: storyboardName, bundle: nil)
                return storyboard.instantiateViewController(withIdentifier: controllerName) as! ControllerType
            } else {
                return ControllerType()
            }
        },
         onDismiss: { vc in _ = vc.navigationController?.popViewController(animated: true) })
        
    }
        
    open override func customDidSelect() {
        super.customDidSelect()
        guard let presentationMode = presentationMode, !isDisabled else { return }
        if let controller = presentationMode.makeController() {
            controller.row = self
            controller.title = selectorTitle ?? controller.title
            onPresentCallback?(cell.formViewController()!, controller)
            presentationMode.present(controller, row: self, presentingController: self.cell.formViewController()!)
        } else {
            presentationMode.present(nil, row: self, presentingController: self.cell.formViewController()!)
        }
    }
    
    open override func prepare(for segue: UIStoryboardSegue) {
        super.prepare(for: segue)
        guard let rowVC = segue.destination as? PresenterRow else { return }
        rowVC.title = selectorTitle ?? rowVC.title
        rowVC.onDismissCallback = presentationMode?.onDismissCallback ?? rowVC.onDismissCallback
        onPresentCallback?(cell.formViewController()!, rowVC)
        rowVC.row = self
    }
    
}

MyCustomRowViewController.swift

class MyCustomRowViewController: UIViewController, TypedRowControllerType {
    
    public var row: RowOf<String>!
    public var onDismissCallback: ((UIViewController) -> Void)?

}

MyFormViewController.swift

extension MyFormViewController {
	private func setupForm() {
        form
        +++ Section()
        <<< CustomPresenterRow<MyCustomRowViewController>() { row in
            row.storyBoardName = "Main"
            row.controllerName = "MyCustomRowViewController"
        }
    }
}