textView.attributedText = newText //or textView.text = ...
//this part of code scrolls to top
textView.contentOffset.y = -64 //or = 0 if no Navigation Bar
textView.scrollEnabled = false
textView.layoutIfNeeded()
textView.scrollEnabled = true
在 Swift 2,Xcode 7解决方案中,为了保持滚动 启动并使文本从顶部开始,这就是你所需要的:
@IBOutlet weak var myUITextView: UITextView!
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
//start scroll at top of text
myUITextView.scrollRangeToVisible(NSMakeRange(0, 0))
}
类似于其他一些答案,但附加的好处是,你不会导致一个滚动顶部的后续设备旋转。在 Swift 2.2中运行良好
/// Whether view has laid out subviews at least once before.
var viewDidLayoutSubviewsAtLeastOnce = false
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if !viewDidLayoutSubviewsAtLeastOnce {
textView.setContentOffset(CGPoint(x: 0, y: -textView.contentInset.top), animated: false)
}
viewDidLayoutSubviewsAtLeastOnce = true
}