title: How to make scrollbar of TextView always visible in Swift
body: <p>I use TextView in Collection View Cell. I want TextView always show scroll indicator when its content can be scrollable. I use this method below. But It shows only first after that it disappear. How to make scroll indicator of TextView always show?</p>
  
  <pre><code>override func draw(_ rect: CGRect) {
          super.draw(rect)
          self.descriptionTextView.flashScrollIndicators()
      }
  </code></pre>