Question

我正在从使用php子生成器生成的Web服务器解析json文件。但是现在json文件在内容中有/ n和br标签，当我解析文件时，应用程序显示/ n和br标签。

继承我的代码：

 -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath{
    static NSString *cellIdentifier=@"identity";
    CustomCell2 *cell=[tableView dequeueReusableCellWithIdentifier:cellIdentifier];

    cell.loader.hidden = NO;
    [loader startAnimating];
    [[NSBundle mainBundle]loadNibNamed:@"CustomCell11" owner:self options:nil];
    cell=(CustomCell2 *)tblCell;
    NSMutableArray *dictionaryObject=[_newsArray objectAtIndex:indexPath.row];
    lblMain.text=[dictionaryObject valueForKey:@"MainHeadline"];
    lblSummary.text=[dictionaryObject valueForKey:@"Story"];
    lblEdition.text=[dictionaryObject valueForKey:@"Edition"];
    //lblStory.text=[dictionaryObject valueForKey:@"FullStory"];
    lblDate.text=[dictionaryObject valueForKey:@"PublishDate"];
    lblAuthor.text=[dictionaryObject valueForKey:@"Author"];




   dispatch_queue_t queue= dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul);
    dispatch_async(queue, ^{
    NSURL* url = [NSURL URLWithString:[dictionaryObject valueForKey:@"ImagePath"]];
    NSData *data = [NSData dataWithContentsOfURL:url];

        dispatch_sync(dispatch_get_main_queue(), ^{

                       UIImageView *imgViewThumb=[[UIImageView alloc]initWithFrame:imgView.frame];
            [imgViewThumb setImage:[UIImage imageWithData:data]];

            dispatch_async(dispatch_get_main_queue(), ^{
                //cell image added below dispath..patching,il change this later..brrrrrr!!
                [cell addSubview:imgViewThumb];
                //cell.ImagePath.UIImage = imgViewThumb;
            });

           // [cell addSubview:imgViewThumb];
        });

    });
    //what the heck???
    return cell;

}
#pragma mark -methods
-(void)retrieveData{

    NSURL * url =[NSURL URLWithString:getDataURL];
    NSData *data =[NSData dataWithContentsOfURL:url];
       _json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
    _newsArray = [[NSMutableArray alloc]init];

    for (int i = 0; i < _json.count; i++){
        {

            NSString * cID =[[_json objectAtIndex:i]objectForKey:@"ID"];
            NSString * cName = [[_json objectAtIndex:i]objectForKey:@"MainHeadline"];
            NSString * cState =[[_json objectAtIndex:i]objectForKey:@"FullStory"];
            NSString * cPopulation =[[_json objectAtIndex:i]objectForKey:@"Edition"];
            NSString * cCountry =[[_json objectAtIndex:i]objectForKey:@"PublishDate"];
            NSString * cStory =[[_json objectAtIndex:i]objectForKey:@"Story"];
            NSString * cAuthor =[[_json objectAtIndex:i]objectForKey:@"Author"];
            UIImage  *cImage =[[_json objectAtIndex:i]objectForKey:@"ImagePath"];
            UIImage  *cLogo =[[_json objectAtIndex:i]objectForKey:@"Logo"];
            CustomCell2 *myCity = [[CustomCell2 alloc]initWithCityID:cID andCityName:cName andCityState:cState andCityPopulation:cPopulation andCityCountry:cCountry andStory:cStory andImagePath:cImage andAuthor:cAuthor andLogo:cLogo];
            [_newsArray addObject:myCity];``
        }
        //[self.tblView reloadData];
    }    
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

    [self performSegueWithIdentifier:@"detailView" sender:self];
}
#pragma mark - SlideNavigationController Methods -

- (BOOL)slideNavigationControllerShouldDisplayLeftMenu
{
    return YES;
}

Answer 1

更简单代码的示例（在格式化答案中）：

// Current
for (int i = 0; i < _json.count; i++){
    {
        NSString * cID =[[_json objectAtIndex:i]objectForKey:@"ID"];
        NSString * cName = [[_json objectAtIndex:i]objectForKey:@"MainHeadline"];
        NSString * cState =[[_json objectAtIndex:i]objectForKey:@"FullStory"];
        ...

// Simplified
for (NSDictionary *item in _json) {
        NSString * cID = item[@"ID"];
        NSString * cName = item[@"MainHeadline"];
        NSString * cState =item[@"FullStory"];
        ...

学习语言文档可以在更简单明了的代码中获得回报消除重复也可以减少简单的错误。

如何用iPhone中的/ n和br换行解析json文件？

1 个答案: