UITextView从文本的底部或中间开始 [英] UITextView starts at Bottom or Middle of the text

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本文介绍了UITextView从文本的底部或中间开始的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我会正确的。我在我的视图中放置了一个 UItextView ,当需要滚动查看所有文本时(当textView中存在大量文本时)textView在中间开始文本有时和文本的其他时间的底部。

I'll get right to it. I have a UItextView placed in my view that when needs to scroll to see all the text (when a lot of text is present in the textView) the textView starts in the middle of the text sometimes and the bottom of the text other times.

在textView上未启用编辑。我需要一种方法来强制textView每次都从顶部开始。我看到一些问题,其他人使用了内容偏移,但我真的不知道它是如何工作的,或者它是否适用于此处。

Editing is not enabled on the textView. I need a way to force the textView to start at the top, every time. I saw some questions somewhat like this where other people used a content offset, but I do not really know how that works or if it would even be applicable here.

感谢您的帮助。

推荐答案

这就是诀窍我!

[self.textView scrollRangeToVisible:NSMakeRange(0, 0)];



Swift:



Swift:

self.textView.scrollRangeToVisible(NSMakeRange(0, 0))



Swift 2(替代解决方案)



将此覆盖方法添加到ViewController

Swift 2 (Alternate Solution)

Add this override method to your ViewController

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    textView.setContentOffset(CGPointZero, animated: false)
}



Swift 3& 4(语法编辑)



Swift 3 & 4 (syntax edit)

override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        textView.setContentOffset(CGPoint.zero, animated: false)
    }

这篇关于UITextView从文本的底部或中间开始的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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