将数组数据显示到一本字典中？

Question

我有这个解析数据

你好{"response":"200","category-list":true,"category":[{"prod_id":"1","prod_name":"Apparel & Accessories","prod_status":"1","prod_order":"1","prod_slug":"apparel-accessories"},{"prod_id":"2","prod_name":"Automotive Services","prod_status":"1","prod_order":"2","prod_slug":"automotive-services"},{"prod_id" :"12","prod_name":"Building and Construction","prod_status":"1","prod_order":"11","prod_slug":"building-and-construction"}, {"prod_id":"9","prod_name":"Business & Professional Services","prod_status":"1","prod_order":"8","prod_slug":"business-professional-services"},{"prod_id":"10","prod_name":"Business Services","prod_status":"1","prod_order":"9","prod_slug":"business-services"},{"prod_id":"11","prod_name":"Community & Education","prod_status":"1","prod_order" :"10","prod_slug":"community-education"},{"prod_id":"13","prod_name":"Education","prod_status":"1" ,"prod_order":"12","prod_slug":"education"},{"prod_id":"14","prod_name":"Entertainment & Media","prod_status":"1","prod_order":"13","prod_slug":"entertainment-media"},{"prod_id":"15","prod_name":"Family & Community","prod_status":"1","prod_order":"14","prod_slug":"family-community"},{"prod_id":"16","prod_name":"Finance","prod_status":"1","prod_order":"15","prod_slug":"finance"},{"prod_id":" 17","prod_name":"Finance & Legal","prod_status":"1","prod_order":"16","prod_slug":"finance-legal"},{"prod_id":"18","prod_name":"Food & Dining","prod_status":"1","prod_order":"17","prod_slug":"food-dining"},{"prod_id":"3","prod_name":"FREIGHT","prod_status":"1","prod_order":"3","prod_slug":"bgdr"},{"prod_id":"19","prod_name":"Health & Medicine","prod_status":"1","prod_order":" 18","prod_slug":"health-medicine"},{"prod_id":"20","prod_name":"Home & Garden","prod_status":"1","prod_order" :"19","prod_slug":"home-garden"},{"prod_id":"21","prod_name":"Home Repair & Improvement","prod_status":"1" ,"prod_order":"20","prod_slug":"home-repair-improvement"},{"prod_id":"22","prod_name":"Industrial supplies & services","prod_status":"1","prod_order":"21","prod_slug":"industrial-supplies-services"},{"prod_id":"23","prod_name":"Information Technology","prod_status":"1","prod_order":"22","prod_slug":"information-technology"},{"prod_id":"24","prod_name":"Legal","prod_status":"1","prod_order":"23","prod_slug":"legal"},{"prod_id":" 7","prod_name":"My New Category","prod_status":"1","prod_order":"6","prod_slug":"new-category"},{"prod_id":"8","prod_name":"My Testing Category","prod_status":"1","prod_order":"7","prod_slug":"my-testing-category"},{"prod_id":"4","prod_name":"PELLETS","prod_status":"1","prod_order":"4","prod_slug":"gdgggdsgdfgdg"},{"prod_id":"25","prod_name":"Personal Care","prod_status":"1","prod_order":" 24","prod_slug":"personal-care"},{"prod_id":"26","prod_name":"Public utilities & environment","prod_status":"1","prod_order":"25","prod_slug":"public-utilities-environment"},{"prod_id":"27","prod_name":"Real Estate","prod_status" :"1","prod_order":"26","prod_slug":"real-estate"},{"prod_id":"28","prod_name":"Real Estate & Insurance" ,"prod_status":"1","prod_order":"27","prod_slug":"real-estate-insurance"},{"prod_id":"29","prod_name" :"Shopping","prod_status":"1","prod_order":"28","prod_slug":"shopping"},{"prod_id":"30" ,"prod_name":"Shopping & Specialty Stores","prod_status":"1","prod_order":"29","prod_slug":"shopping-specialty-stores"},{"prod_id":"31","prod_name":"Sports & Recreation","prod_status":"1","prod_order":"30","prod_slug":"sports-recreation" },{"prod_id":"6","prod_name":"TRANSPORT SERVICES","prod_status":"1","prod_order":" 5","prod_slug":"transport"},{"prod_id":"32","prod_name":"Transportation","prod_status":"1","prod_order":"31","prod_slug":"transportation"},{"prod_id":"33","prod_name":"Travel","prod_status" :"1","prod_order":"32","prod_slug":"travel"},{"prod_id":"34","prod_name":"Travel & Lodging" ,"prod_status":"1","prod_order":"33","prod_slug":"travel-lodging"},{"prod_id":"35","prod_name" :"Uncategorized","prod_status":"1","prod_order":"34","prod_slug":"uncategorized"}]}

我试过这个:-

- (IBAction)SelectCategory:(id)sender
{
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
    [request setURL:[NSURL URLWithString:@"http://d.com/category"]];
    [request setHTTPMethod:@"POST"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    NSError *error;
    NSURLResponse *response;
    NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
    NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
    NSLog(@"hello %@",str);

    NSDictionary *dict1 = [NSJSONSerialization JSONObjectWithData:urlData options:kNilOptions error:&error];

    categoryArray =[[NSArray alloc]init];

    CategoryDict = [[NSMutableDictionary alloc]init];
    categoryArray = [dict1 allValues];
    CategoryDict = [[categoryArray objectAtIndex:0]valueForKey:@"prod_name"];

    NSLog(@"category dict = %@",CategoryDict);
    [CategoryTable reloadData];
    CategoryTable.hidden = FALSE;


}

如何将 "prod_name" 数据放入 UITableView 的 cell 中？提前致谢。

Answer 1

喜欢

在你的 ViewDidLoad

 @interface XXXXViewController ()
{
 NSMutableArray *categoryArray;
}

 - (void)viewDidLoad
 {
[super viewDidLoad];
 categoryArray =  [[NSMutableArray alloc]init];
  }

  NSDictionary *dict1 = [NSJSONSerialization JSONObjectWithData:urlData options:kNilOptions error:&error];

  categoryArray  =  [dict1 valueForKey:@"category"] ;  

    if (categoryArray.count > 0)      
    {
     CategoryTable.hidden = FALSE;
    [CategoryTable reloadData];
    }
}

并点赞

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;
{
return [categoryArray count];
}

  - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 {
 cell.textLabel.text=[NSString stringWithFormat:@"%@ ",[[categoryArray objectAtIndex:indexPath.row] objectForKey:@"prod_name"]];
   }

Answer 2

使用 id 如下

这只是一个供您理解的工作演示

如您在回复中所见，您收到了一系列词典。使用 id 告诉编译器您要访问哪个特定的 key value 对，例如：

categoryArray =[[NSArray alloc]init];
categoryArray = [dict1 allValues];
id keyValuePair = categoryArray[indexPath.row];

//分配给你的表格视图单元格

cell.product_name_label.text = keyValuePair[@"prod_name"];

将数组数据显示到一本字典中？

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