解析HTML到NSAttributedText - 如何设置字体？

问题描述

到目前为止，我有这个：

p>

  NSError *错误; 
 NSString * source = @< strong> Nice< / strong> try，Phil; 
 NSMutableAttributedString * str = [[NSMutableAttributedString alloc] initWithData：[source dataUsingEncoding：NSUTF8StringEncoding] 
 options：@ {NSDocumentTypeDocumentAttribute：NSHTMLTextDocumentType，
 NSCharacterEncodingDocumentAttribute：[NSNumber numberWithInt：NSUTF8StringEncoding]} 
 documentAttributes：nil error：& error]; 
  

这类作品。我收到了一些文字，内容大胆！但是......它也将字体设置为Times Roman！这不是我想要的字体。
我想我需要设置在documentAttributes的东西，但是，我找不到任何例子的任何地方。

解决方案

这段代码将经历所有的字体变化。我知道它使用Times New Roman和Times New Roman BoldMT作为字体。
但无论如何，这会找到大胆的字体，让我重置它们。我可以重置大小，而我在它。

我真的希望/认为有一种方法可以在解析时设置它，但我不能找到它。

  NSRange range =（NSRange）{0，[str length]}; 
 [STR enumerateAttribute：NSFontAttributeName INRANGE：范围选择：NSAttributedStringEnumerationLongestEffectiveRangeNotRequired usingBlock：^（值id，NSRange范围，BOOL *停止）{
 UIFont * currentFont =值; 
 UIFont * replacementFont = nil;如果
 
（[currentFont.fontName rangeOfString：@ 大胆 的选项：NSCaseInsensitiveSearch]！.location = NSNotFound）{
 replacementFont = [UIFont fontWithName：@ HelveticaNeue-CondensedBold 尺寸：25.0 F]; 
} else {
 replacementFont = [UIFont fontWithName：@HelveticaNeue-Thinsize：25.0f]; 
} 
 
 [str addAttribute：NSFontAttributeName value：replacementFont range：range]; 
}]; 
  

I am trying to get a snippet of text that is formatted in html to display nicely on an iPhone in a UITableViewCell.

So far I have this:

NSError* error;
NSString* source = @"<strong>Nice</strong> try, Phil";
NSMutableAttributedString* str = [[NSMutableAttributedString alloc] initWithData:[source dataUsingEncoding:NSUTF8StringEncoding]
                                                           options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
                                                                     NSCharacterEncodingDocumentAttribute: [NSNumber numberWithInt:NSUTF8StringEncoding]}
                                                              documentAttributes:nil error:&error];

This kind of works. I get some text that has 'Nice' in bold! But... it also sets the font to be Times Roman! This is not the font face I want.I am thinking I need to set something in the documentAttributes, but, I can't find any examples anywhere.

解决方案

Figured it out. Bit of a bear, and maybe not the best answer.

This code will go through all the font changes. I know that it is using "Times New Roman" and "Times New Roman BoldMT" for the fonts.But regardless, this will find the bold fonts and let me reset them. I can also reset the size while I'm at it.

I honestly hope/think there is a way to set this up at parse time, but I can't find it if there is.

    NSRange range = (NSRange){0,[str length]};
    [str enumerateAttribute:NSFontAttributeName inRange:range options:NSAttributedStringEnumerationLongestEffectiveRangeNotRequired usingBlock:^(id value, NSRange range, BOOL *stop) {
        UIFont* currentFont = value;
        UIFont *replacementFont = nil;

        if ([currentFont.fontName rangeOfString:@"bold" options:NSCaseInsensitiveSearch].location != NSNotFound) {
            replacementFont = [UIFont fontWithName:@"HelveticaNeue-CondensedBold" size:25.0f];
        } else {
            replacementFont = [UIFont fontWithName:@"HelveticaNeue-Thin" size:25.0f];
        }

        [str addAttribute:NSFontAttributeName value:replacementFont range:range];
    }];

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