CustomViewController.swift

//
//  ViewController.swift
//  SideView
//
//  Created by JK on 2019/11/11.
//  Copyright © 2019 codesquad. All rights reserved.
//

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var menuView: UIView!
    @IBOutlet weak var menuViewTrailingConstraint: NSLayoutConstraint!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        
        let rightButton = UIBarButtonItem.init(barButtonSystemItem: .done, target: self, action: #selector(rightButtonTouched(_:)))
        rightButton.title = "X"
        self.navigationItem.rightBarButtonItem = rightButton
    }


    @objc func rightButtonTouched(_ sender: UIBarButtonItem) {
        
    }

    @IBAction func leftButtonTouched(_ sender: Any) {

//        UIView.animate(withDuration: 1) {
//            self.menuViewTrailingConstraint.constant = 200
//            self.view.layoutIfNeeded()
//        }
        
//        let menuViewController = self.storyboard?.instantiateViewController(withIdentifier: "MenuViewController") as! MenuViewController
//        self.addChild(menuViewController)
//        self.view.addSubview(menuViewController.view)
//        menuViewController.view.frame = CGRect(origin: menuView.frame.origin, size: CGSize(width: 300, height: menuView.frame.size.height))
//        menuViewController.view.frame.origin = CGPoint(x: 0, y: menuView.frame.origin.y)
//        menuViewController.didMove(toParent: self)

        let menuViewController = self.storyboard?.instantiateViewController(withIdentifier: "MenuViewController") as! MenuViewController
        menuViewController.transitioningDelegate = self
        menuViewController.modalPresentationStyle = .custom
        
        self.present(menuViewController, animated: false, completion: {
//            menuViewController.view.frame = CGRect(x: 0, y: 00, width: 200, height: 300)
            self.view.alpha = 0.5
        })
    }
}

extension ViewController : UIViewControllerTransitioningDelegate {
    func presentationController(forPresented presented: UIViewController, presenting: UIViewController?, source: UIViewController) -> UIPresentationController? {
        return Presenter(presentedViewController: presented, presenting: presenting)
    }
}

class Presenter : UIPresentationController {
    override var frameOfPresentedViewInContainerView: CGRect {
        return CGRect(x: 100, y: 100, width: 200, height: 200)
    }
}