Question

我有一个不会出现的UILabel。

如果我使用api2Cell.labelDescription.text = @"Hello";，则显示文本，但是当我尝试从XML（显示在控制台中）中获取文本时，它不会显示在标签中。

FeedRSS *feedDan = (FeedRSS *)model;
MRWebListTableViewCellTwo  *api2Cell = [tableView dequeueReusableCellWithIdentifier:@"YourAPI2Cell"];
NSString *description = [self removeHTMLTags:feedDan.description];
api2Cell.labelDescription.text = description;
NSLog(@"DescriptionString RSS: %@", description);

控制台显示：

DescriptionString RSS: 
BOSTON -- Jared Sullinger will always wonder what might have been if Evan Turner had returned for his senior season at Ohio State. evanalmighty12 on...

但标签是空白的。没有显示null，只是留空。有时当我点击并按住单元格时，文本会显示片刻。所以我只是没有得到它。我设置了断点等等。

有人可以帮忙吗？谢谢！

以下是方法removeHTMLTags：

- (NSString *)removeHTMLTags:(NSString *)str {
    NSMutableString *temp_str = [[NSMutableString alloc] initWithString:str];
    NSRange openTag = [temp_str rangeOfString:@"<"];
    NSRange closeTag = [temp_str rangeOfString:@">"];

    while (openTag.length > 0) {
        NSRange range;
        range.location = openTag.location;
        range.length = (closeTag.location - openTag.location) + 1;
        [temp_str setString:[temp_str stringByReplacingCharactersInRange:range withString:@""]];

        openTag = [temp_str rangeOfString:@"<"];
        closeTag = [temp_str rangeOfString:@">"];
    }

    [temp_str replaceOccurrencesOfString:@"&Auml;" withString:@"Ä" options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];
    [temp_str replaceOccurrencesOfString:@"&Aring;" withString:@"Å" options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];
    [temp_str replaceOccurrencesOfString:@"&AElig;" withString:@"Æ" options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];


    while ([temp_str rangeOfString:@"  "].location != NSNotFound) {
        [temp_str replaceOccurrencesOfString:@"  " withString:@" " options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];
    }

    while ([temp_str rangeOfString:@" ."].location != NSNotFound) {
        [temp_str replaceOccurrencesOfString:@" ." withString:@"." options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];
    }

    while ([temp_str rangeOfString:@" ,"].location != NSNotFound) {
        [temp_str replaceOccurrencesOfString:@" ," withString:@"," options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];
    }

    while ([temp_str rangeOfString:@" ;"].location != NSNotFound) {
        [temp_str replaceOccurrencesOfString:@" ;" withString:@";" options:NSLiteralSearch range:NSMakeRange(0, [temp_str length])];
    }

    return temp_str;
}

Answer 1

可能是因为description开头有新行。

尝试使用：

api2Cell.labelDescription.text = [description stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

UILabel未显示在控制台中显示的文本字符串

1 个答案: