如何更改iOS中属性字符串的字体？

Question

我在label上添加了属性字符串.我显示的html文本工作正常,但默认情况下它始终显示Times新罗马家族.请告诉我如何更改文本系列.

NSAttributedString *attributedString = [[NSAttributedString alloc] initWithData:[inst.desc dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];

Answer 1

试试这个:

NSAttributedString *attributedString = [[NSAttributedString alloc] initWithData:[inst.desc dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
NSMutableAttributedString *newString = [[NSMutableAttributedString alloc] initWithAttributedString:attributedString];
NSRange range = (NSRange){0,[newString length]};
[newString enumerateAttribute:NSFontAttributeName inRange:range options:NSAttributedStringEnumerationLongestEffectiveRangeNotRequired usingBlock:^(id value, NSRange range, BOOL *stop) {
    UIFont *replacementFont =  [UIFont fontWithName:@"Palatino-Roman" size:14.0];
    [newString addAttribute:NSFontAttributeName value:replacementFont range:range];
}];
self.label.attributedText = newString;

Answer 2

你可以这样做：

NSDictionary *attrDict = @{
    NSFontAttributeName : [UIFont fontWithName:Arial size:16.0],
    NSForegroundColorAttributeName : [UIColor redColor]
};
 NSAttributedString *attrString = [[NSAttributedString alloc] initWithString:@"string" attributes:attrDict];