删除 UITextView 链接上的下划线 [英] Remove underline on UITextView link

问题描述

我正在尝试使用以下方法来格式化 UITextView 上的链接:

I'm trying the following to format links on UITextView:

self.textView.linkTextAttributes = @{NSForegroundColorAttributeName:[UIColor whiteColor], NSUnderlineStyleAttributeName:[NSNumber numberWithInteger:NSUnderlineStyleNone]};

问题在于，链接颜色已更改为白色，但仍带有下划线.

The issue is that, the link color was changed to white, but it's still underlined.

我该如何解决?

这是我的attributedString:

{
    NSColor = "UIDeviceRGBColorSpace 0.294118 0.254902 0.211765 1";
    NSFont = "<UICTFont: 0x7fd75a196010> font-family: \"Helvetica\"; font-weight: normal; font-style: normal; font-size: 24.00pt";
    NSParagraphStyle = "Alignment 4, LineSpacing 0, ParagraphSpacing 24, ParagraphSpacingBefore 0, HeadIndent 0, TailIndent 0, FirstLineHeadIndent 0, LineHeight 0/0, LineHeightMultiple 0, LineBreakMode 0, Tabs (\n    28L,\n    56L,\n    84L,\n    112L,\n    140L,\n    168L,\n    196L,\n    224L,\n    252L,\n    280L,\n    308L,\n    336L\n), DefaultTabInterval 36, Blocks (null), Lists (null), BaseWritingDirection -1, HyphenationFactor 0, TighteningFactor 0, HeaderLevel 0";
}url.com{
    CTForegroundColorFromContext = 1;
    DTGUID = "44B87A68-642A-41AA-8CBA-48531DB58C57";
    DTLinkHighlightColor = "UIDeviceRGBColorSpace 1 0 0 1";
    NSColor = "UIDeviceRGBColorSpace 0 0 0.933333 1";
    NSFont = "<UICTFont: 0x7fd75a196010> font-family: \"Helvetica\"; font-weight: normal; font-style: normal; font-size: 24.00pt";
    NSLink = "http://www.url.com";
    NSParagraphStyle = "Alignment 4, LineSpacing 0, ParagraphSpacing 24, ParagraphSpacingBefore 0, HeadIndent 0, TailIndent 0, FirstLineHeadIndent 0, LineHeight 0/0, LineHeightMultiple 0, LineBreakMode 0, Tabs (\n    28L,\n    56L,\n    84L,\n    112L,\n    140L,\n    168L,\n    196L,\n    224L,\n    252L,\n    280L,\n    308L,\n    336L\n), DefaultTabInterval 36, Blocks (null), Lists (null), BaseWritingDirection -1, HyphenationFactor 0, TighteningFactor 0, HeaderLevel 0";
    NSUnderline = 1;
}
{
    NSFont = "<UICTFont: 0x7fd75a196010> font-family: \"Helvetica\"; font-weight: normal; font-style: normal; font-size: 24.00pt";
    NSParagraphStyle = "Alignment 4, LineSpacing 0, ParagraphSpacing 24, ParagraphSpacingBefore 0, HeadIndent 0, TailIndent 0, FirstLineHeadIndent 0, LineHeight 0/0, LineHeightMultiple 0, LineBreakMode 0, Tabs (\n    28L,\n    56L,\n    84L,\n    112L,\n    140L,\n    168L,\n    196L,\n    224L,\n    252L,\n    280L,\n    308L,\n    336L\n), DefaultTabInterval 36, Blocks (null), Lists (null), BaseWritingDirection -1, HyphenationFactor 0, TighteningFactor 0, HeaderLevel 0";
}

推荐答案

由于未知原因，如果我在 linkTextAttributes 中添加 NSUnderlineStyleAttributeName 不起作用.它应该添加 NSUnderline = 0 到链接，而不是添加 NSUnderline = 1.因此，我找到的唯一解决方案是找到该属性并在找到时替换它.

For an unknow reason, if I add the NSUnderlineStyleAttributeName in linkTextAttributes didn't work. It supposed to add NSUnderline = 0 to link, instead it add NSUnderline = 1. So, the only solution I found is to locate that attribute and replace it when found.

self.textView.linkTextAttributes = @{NSForegroundColorAttributeName:[UIColor whiteColor]};

NSMutableAttributedString *res = [self.textView.attributedText mutableCopy];
[res beginEditing];
[res enumerateAttribute:NSUnderlineStyleAttributeName
                inRange:NSMakeRange(0, res.length)
                options:0
             usingBlock:^(id value, NSRange range, BOOL *stop) {
                 if (value) {
                     [res addAttribute:NSUnderlineStyleAttributeName value:@(NSUnderlineStyleNone) range:range];
                 }
             }];
[res endEditing];

[self.textView setAttributedText:res];

这篇关于删除 UITextView 链接上的下划线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！