Ios 如何在NSMutableArray中为任何索引处的get对象使用循环

我有这样的json文件：

{ "fileContent" : [ { "created" : "2013/04/11 - 10:00",
    "ext" : "sql",
    "modified" : "2013/04/11 - 10:00",
    "name" : "directorffdsgfg",
    "size" : "1577",
    "type" : "file"
  },
  { "created" : "2013/04/11 - 12:10",
    "ext" : "sql",
    "modified" : "2013/04/11 - 12:10",
    "name" : "directory02",
    "size" : "1577",
    "type" : "file"
  },
  { "created" : "2013/04/11 - 12:10",
    "ext" : "zip",
    "modified" : "2013/04/11 - 12:10",
    "name" : "jquery-mousewheel-master",
    "size" : "5213",
    "type" : "file"
  }
],
"files" : 9,
"folderContent" : [ { "created" : "2013/04/11 - 05:04",
    "ext" : "sql",
    "modified" : "2013/04/11 - 05:04",
    "name" : "Folder 2",
    "size" : "1577",
    "type" : "folder"
  },
  { "created" : "2013/04/15 - 09:08",
    "ext" : "zip",
    "modified" : "2013/04/15 - 09:08",
    "name" : "Folder 1",
    "size" : "11867",
    "type" : "folder"
  }
],
"folders" : 2
}

我希望在文件内容中只从顶部获取json名称值，并存储在对象中。但我不能

这是我的代码：

ViewController.m

#import "Object.h"
@implementation ViewController
{
    NSDictionary *titles;   //this variable for read json
    NSMutableData *Data;
    NSMutableArray *fileContent;
    NSString *janatan;
    NSString *number;
    NSInteger num;
    NSMutableArray *recipes;
}

@synthesize Table;

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    Data = [[NSMutableData alloc]init];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)theData
{
    [Data appendData:theData];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

    titles = [NSJSONSerialization JSONObjectWithData:Data options:kNilOptions error:nil];
    fileContent = [titles objectForKey:@"fileContent"];
    //NSLog(@"%@",fileContent);
    number = [titles objectForKey:@"files"];
    num = [number integerValue];
    NSLog(@"num : %d",num);
    for (int i = 0; i <= num; i++) {
        NSLog(@"%d",i);
        Object *obji = [Object new];

// this method should read many names in fileContent but not worke!!!
        janatan = [[fileContent objectAtIndex:i]objectForKey:@"name"];

        NSLog(@"%@",janatan);
        obji.nameLable = janatan; 
        if(!recipes){
            recipes = [NSMutableArray array];
        }
        [recipes addObject:janatan];
        NSLog(@"object : %@",recipes);
    }

    [Table reloadData];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    UIAlertView *errorView = [[UIAlertView alloc]initWithTitle:@"Error" message:@"The Connection has been LOST" delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
    [errorView show];
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
    NSURL *url =[NSURL URLWithString:@"http://192.168.1.105/janatan/root/developers/api/filemanager.php?key=5147379269&getlist=root"];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [[NSURLConnection alloc]initWithRequest:request delegate:self];

}

#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    // Return the number of sections.
    return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    return num;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];    
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    return cell;
}
@end

#导入“Object.h”
@实现视图控制器
{
NSDictionary*titles；//此变量用于读取json
NSMutableData*数据；
NSMutableArray*文件内容；
NSString*janatan；
NSString*编号；
NSInteger num；
NSMutableArray*配方；
}
@综合表；
-（void）连接：（NSURLConnection*）连接DidReceiverResponse：（NSURResponse*）响应
{
数据=[[NSMutableData alloc]init]；
}
-（void）连接：（NSURLConnection*）连接未接收数据：（NSData*）数据
{
[数据附录数据：数据]；
}
-（无效）连接IDFinishLoading:（NSURLConnection*）连接
{
[UIApplication sharedApplication].networkActivityIndicatorVisible=否；
titles=[NSJSONSerialization JSONObjectWithData:数据选项：针织错误：nil]；
fileContent=[titles objectForKey:@“fileContent”]；
//NSLog（@“%@”，文件内容）；
数字=[titles objectForKey:@“files”]；
num=[number integerValue]；
NSLog（@“num:%d”，num）；
对于（int i=0；i替换
for（int i=0；i您关于JSON或NSMultableArray的问题？您添加到
recipes
数组中的
mamal
对象来自何处？它不会出现在您的代码中的任何其他地方。除此之外，
num
似乎是
9
与您的JSON数据，但您的
fileContent
中只有3个元素数组。。。
for (NSDictionary* dict in fileContent) {
    .......
    janatan = [dict objectForKey:@"name"];
    ....... 
}