How to hide keyboard in swift on pressing return key or touch any where in View

class ViewController: UIViewController,UITextFieldDelegate{

 @IBOutlet weak var chatting_Textfield: UITextField!

  

    override func viewDidLoad() {

        super.viewDidLoad()

{

self.chatting_Textfield.delegate =  self

}

   override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {

        self.view.endEditing(true)

    }

    

    func textFieldShouldEndEditing(_ textField: UITextField) -> Bool {

        chatting_Textfield.resignFirstResponder()

        return (true)

    }

}