iOS -XX天xx时xx分xx秒部分改变颜色和字体大小

这个就是一个简单的NSString改变为NSAttributedString后

对字符串进行rang查找和颜色替换。

直接上代码。

- (NSAttributedString *)transformString:(NSString *)string{

    

    NSMutableAttributedString *textColor = [[NSMutableAttributedString alloc]initWithString:string];

    [textColor addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:30] range:NSMakeRange(0, string.length)];

    [textColor addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, string.length)];

    if ([string containsString:@"天"]) {

        NSRange range = [string rangeOfString:@"天"];

        [textColor addAttribute:NSForegroundColorAttributeName value:[UIColor grayColor] range:range];

        [textColor addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:16] range:range];

    }

    if ([string containsString:@"时"]) {

        NSRange range = [string rangeOfString:@"时"];

        [textColor addAttribute:NSForegroundColorAttributeName value:[UIColor grayColor] range:range];

        [textColor addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:16] range:range];

    }

    if ([string containsString:@"分"]) {

        NSRange range = [string rangeOfString:@"分"];

        [textColor addAttribute:NSForegroundColorAttributeName value:[UIColor grayColor] range:range];

        [textColor addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:16] range:range];

    }

    if ([string containsString:@"秒"]) {

        NSRange range = [string rangeOfString:@"秒"];

        [textColor addAttribute:NSForegroundColorAttributeName value:[UIColor grayColor] range:range];

        [textColor addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:16] range:range];

    }

    

    return textColor;

}