[摘要]本文是對修改UILabel字體的講解，對學習IOS蘋果軟件開發有所幫助,與大家分享。

- (void)text:(NSString *)str color:(UIColor *)color font:(UIFont *)font

{

if (!str)

str = self.text;

if (!color)

color = self.textColor;

if (!font)

font = self.font;

[self.attributeString setAttributes:@{NSForegroundColorAttributeName:color,

NSFontAttributeName:font}

range:[self.text rangeOfString:str]];

}

- (void)changeColor

{

self.attributedText = self.attributeString;

}

- (NSMutableAttributedString *)attributeString

{

NSMutableAttributedString *attributeString = objc_getAssociatedObject(self, _cmd);

if (attributeString && [attributeString.string isEqualToString:self.text]) {

return attributeString;

}

attributeString = [[NSMutableAttributedString alloc] initWithString:self.text];

objc_setAssociatedObject(self, _cmd, attributeString, OBJC_ASSOCIATION_RETAIN_NONATOMIC);

return attributeString;

}