我有一个UITextView,我正在管理一个NSAttributedString,最初通过键盘正常输入.我将归因的字符串保存为
HTML,看起来不错.
当我再次加载它,并将其转换回归属的字符串从HTML,字体大小似乎改变.
当我再次加载它,并将其转换回归属的字符串从HTML,字体大小似乎改变.
例如,加载的HTML如下所示:
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
- <html>
- <head>
- <Meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
- <Meta http-equiv="Content-Style-Type" content="text/css">
- <title></title>
- <Meta name="Generator" content="Cocoa HTML Writer">
- <style type="text/css">
- p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 21.0px Helvetica; color: #000000; -webkit-text- stroke: #000000}
- span.s1 {font-family: 'Helvetica'; font-weight: normal; font-style: normal; font-size: 21.00pt; font-kerning: none}
- </style>
- </head>
- <body>
- <p class="p1"><span class="s1">There is some text as usual lots of text</span></p>
- </body>
- </html>
- // convert to attributed string
- NSError *err;
- NSAttributedString *as = [[NSAttributedString alloc] initWithData:data3
- options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding)}
- documentAttributes:nil
- error:&err] ;
- NSMutableAttributedString *res = [as mutableCopy];
- [res enumerateAttribute:NSFontAttributeName inRange:NSMakeRange(0,res.length) options:0 usingBlock:^(id value,NSRange range,BOOL *stop) {
- if (value) {
- UIFont *oldFont = (UIFont *)value;
- NSLog(@"On Loading: Font size %f,in range from %d length %d",oldFont.pointSize,range.location,range.length);
- }
- }];
- On Loading: Font size 28.000000,in range from 0 length 40
- On Loading: Font size 21.000000,in range from 40 length 1
基本上每次加载字符串时,字体大小都会增加.我需要将其存储为HTML而不是NSData,因为它也将被其他平台使用.
有人有什么想法为什么会发生这种情况吗?
解决方法
我也遇到这个问题,我通过迭代属性修复它,并重新排列旧的字体大小如下
- NSMutableAttributedString *res = [attributedText mutableCopy];
- [res beginEditing];
- [res enumerateAttribute:NSFontAttributeName
- inRange:NSMakeRange(0,res.length)
- options:0
- usingBlock:^(id value,BOOL *stop) {
- if (value) {
- UIFont *oldFont = (UIFont *)value;
- UIFont *newFont = [oldFont fontWithSize:15];
- [res addAttribute:NSFontAttributeName value:newFont range:range];
- }
- }];
- [res endEditing];
- [self.textFileInputView setAttributedText:res];