這個就是一個簡單的NSString改變為NSAttributedString後

對字串進行rang查詢和顏色替換。

直接上程式碼。

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

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

    [textColor addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:

    [textColor addAttribute:NSForegroundColorAttributeNamevalue:[UIColorredColor] range:NSMakeRange(0, string.length)];

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

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

        [textColor addAttribute:NSForegroundColorAttributeNamevalue

        [textColor addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:16] range:range];

    }

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

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

        [textColor addAttribute:NSForegroundColorAttributeNamevalue

        [textColor addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:16] range:range];

    }

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

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

        [textColor addAttribute:NSForegroundColorAttributeNamevalue:[UIColorgrayColor] range:range];

        [textColor addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:16] range:range];

    }

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

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

        [textColor addAttribute:NSForegroundColorAttributeNamevalue:[UIColorgrayColor] range:range];

        [textColor addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:16] range:range];

    }

    return textColor;

}