Swipe up and swipe down the viewController when user tap on ViewController swift

Question

Two viewControllers one is aboutViewController and second one is customViewController.Added customViewController in aboutViewController as an subView on bottom position now I want when user swipe up the whole controller swipe up and show all the content of viewController and swipe down to get the same position through animation.

AboutViewController:

class AboutViewController: UIViewController {
    @IBOutlet weak var customsController:CustomViewController!
    override func viewDidLoad() {
        super.viewDidLoad()
        
    }
    
    override func viewDidAppear(_ animated: Bool) {
        customController()
    }
    
    func customController(){
        guard let vc = self.storyboard?.instantiateViewController(withIdentifier: String(describing: CustomViewController.self)) as? CustomViewController else {return}
        let screnSize = UIScreen.main.bounds
        let frame:CGRect = .init(x: 0, y: screnSize.height - 300, width: screnSize.width, height: 300)
        vc.view.frame = frame
        self.view.addSubview(vc.view)
    }

}

Here is the example I want to achieve like this one see the pics below I want this functionality