Scroll UITextView to top - Swift 3

// Vladimir Zhelnov - neatek.pw - Web/iOS dev

//viewDidLoad is called when the NIB finished loading. At this time the view is not visible on screen.
//viewDidAppear is called when the view is visible on screen.

override func viewDidAppear(_ animated: Bool) {
    self.textview.scrollRangeToVisible(NSRange(location:0, length:0))
}
// UIView Class