title: Position UIButton in UITextview
body: <p>I would like to place a "forgot?" Button into my Password Textfield. If nothing is in the Textfield the user should be able to click it and another ViewController should pop up. The only thing I managed to do is what you can see in the picture down below. My problem is that the button is not clickable and that it is not on the same level as the placeholder text. Any ideas on how to solve this two problems?</p>
  
  <pre><code>    let button = UIButton(type: .custom)
      button.setTitle("vergessen?", for: .normal)
      button.frame = CGRect(x: CGFloat(0), y: CGFloat(0), width: CGFloat(100), height: CGFloat(100))
      button.addTarget(self, action: #selector(self.refresh), for: .touchUpInside)
      passwordTextField.rightView = button
      passwordTextField.rightViewMode = .unlessEditing
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Zc8tWl.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Zc8tWl.jpg" alt="enter image description here"></a></p>