我正在使用以下代码将 RSS 提要的原始 HTML 格式化为 NSAttributedString
. HTML 包含 <img>
导致图像附加为 NSTextAttachment
的标签进入NSAttributedString
.问题是图像对于放置属性字符串的 UITextView 来说太大了。有没有办法可以从属性字符串中操纵图像的大小?以下是代表图像附件的整个属性字符串的摘录。
{
NSAttachment = "<NSTextAttachment: 0x16d29450> \"e0e1d483a922419807a2378a7ec031af.jpg\"";
NSColor = "UIDeviceRGBColorSpace 0 0 0 1";
NSFont = "<UICTFont: 0x16ef8a40> font-family: \"Times New Roman\"; font-weight: normal; font-style: normal; font-size: 12.00pt";
NSKern = 0;
NSParagraphStyle = "Alignment 4, LineSpacing 0, ParagraphSpacing 12, ParagraphSpacingBefore 0, HeadIndent 0, TailIndent 0, FirstLineHeadIndent 0, LineHeight 0/0, LineHeightMultiple 0, LineBreakMode 0, Tabs (\n), DefaultTabInterval 36, Blocks (null), Lists (null), BaseWritingDirection 0, HyphenationFactor 0, TighteningFactor 0, HeaderLevel 0";
NSStrokeColor = "UIDeviceRGBColorSpace 0 0 0 1";
NSStrokeWidth = 0;
}
最佳答案
您可以遍历 NSAttributedString,获取附件、边界并修改它们:
[myAtrrString enumerateAttribute:NSAttachmentAttributeName inRange:NSMakeRange(0, myAtrrString.length) options:0 usingBlock:^(id value, NSRange range, BOOL *stop) {
if (![value isKindOfClass:[NSTextAttachment class]]) {
return;
}
NSTextAttachment *attachment = (NSTextAttachment*)value;
CGRect bounds = attachment.bounds;
// modify bounds
attachment.bounds = bounds;
}];
关于ios - 更改 NSTextAttachment 图像的大小?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31945236/