title: UITextView with border and floating placeholder using MDCMultilineTextField
body: <p>Im trying to achieve as in these images below
  <a href="https://i.stack.imgur.com/m77WW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/m77WW.png" alt="enter image description here"></a></p>
  
  <p>On User edit
  <a href="https://i.stack.imgur.com/LsyQl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LsyQl.png" alt="enter image description here"></a></p>
  
  <p>here is my code</p>
  
  <pre><code>    @IBOutlet weak var commentTxtField: MDCMultilineTextField!  // Connected to storyboard
  
  commentTxtField.textView?.delegate = self
          commentTxtField.textView?.frame = CGRect(x: (commentTxtField.textView?.frame.origin.x)!, y: (commentTxtField.textView?.frame.origin.y)!, width: (commentTxtField.textView?.frame.width)!, height: CGFloat(GenUtils.shared.getHeightForPercent(percent: 11.99)))
          commentTxtField.expandsOnOverflow = false
          commentTextFieldController = MDCTextInputControllerOutlinedTextArea(textInput: commentTxtField)
          commentTextFieldController?.placeholderText = "Comment"
  
          commentTextFieldController?.isFloatingEnabled = true
          commentTextFieldController!.characterCountMax = UInt(maxCharactersCount)
          commentTextFieldController?.characterCountViewMode = UITextField.ViewMode.never
          commentTextFieldController?.activeColor = UIColor.white.withAlphaComponent(0.6)
          commentTextFieldController?.normalColor = UIColor.white.withAlphaComponent(0.2)
          //        emailTextFieldController?.borderFillColor = UIColor.white
          commentTextFieldController?.floatingPlaceholderActiveColor = UIColor(red: 249/255, green: 249/255, blue: 249/255, alpha: 0.54)
          commentTextFieldController?.inlinePlaceholderColor = UIColor.white
          commentTextFieldController?.floatingPlaceholderNormalColor = UIColor(red: 249/255, green: 249/255, blue: 249/255, alpha: 0.54)
          commentTxtField.textColor = UIColor.white
          commentTextFieldController?.inlinePlaceholderFont = UIFont(name:"Avenir-Medium",size:16)
  </code></pre>
  
  <p>tried to set the textviewframe, but not reflecting on screen. And also not able to get floating placeholder on border line align.  What am i missing?</p>