导致 UITextView 在结尾处换行的额外空白被忽略 [英] Extra whitespace that causes a newline by UITextView at end is ignored
本文介绍了导致 UITextView 在结尾处换行的额外空白被忽略的处理方法,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
这是我的代码:
import UIKit
class ViewController: UIViewController {
init() {
super.init(nibName: nil, bundle: nil)
let textView = UITextView(frame: .zero)
textView.isScrollEnabled = false
textView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(textView)
NSLayoutConstraint.activate([
textView.widthAnchor.constraint(equalToConstant: 150),
textView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
textView.centerYAnchor.constraint(equalTo: view.centerYAnchor)
])
// As we can see, LOT'S of whitespace at the end.
textView.text = "Some Random Text That Has Whitespaces At The End "
view.backgroundColor = .yellow
}
required init?(coder aDecoder: NSCoder) {
fatalError()
}
}
结果如下:
根据空格的数量,它应该创建一个空的换行符.然而,正如我们所见,情况并非如此.如果我在字符串的最后添加另一个字符,将显示换行符(但带有我不想要的字符).
By the amount of spaces, it should have created an empty newline. However, as we can see this wasn't the case. If I add another character at the very end of the string, the newline will be shown (but with the character, which I do not want).
如果需要,如何在 UITextView
中显示一个空的换行符?
How can I show an empty newline if needed in an UITextView
?
推荐答案
使用这个:
引用中有一些invisible 字符,iOS 不将它们算作whiteSpace
There is some invisible characters inside the quote that iOS is not count them as whiteSpace
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