Iphone 在具有特定文本的词典中筛选NSDictionary

我得到了一个web服务repsonse，它是一个字典数组。每个字典都有对象，其值本身就是另一个字典。我需要在这个响应中实现搜索，比如如果我输入“technology”并进行搜索，我应该从数组中获取那些字典，该数组具有“该字典中的任何技术”，是否有解决方案进行排序

     {
         key1 =         {
    0 =             {
    "id" = 608;
    "b" = "Apple-Iphone";
     };
    1 =             {
    "id" = 609;
    "b" = "Iphone";
    };
    2 =             {
    "id" = 610;
    "b" = "Show Text";
    };

    };
    key2 = "Technology resources";
    "key3" =         {
    0 =             {
    "id" = 1608;
    "b" = "I love reading";
    };
    1 =             {
    "id" = 1609;
    "b" = "I prefer iphone to others";
    };
    2 =             {
                "id" = 1610;
                "b" = "Mobile technology is great.I am happy to a be developer";
            };

        };

        "key4" = "Mobile technology is the fun";
}

这是第一种方法

    NSMutableDictionary *dict;
    NSArray *allKeys = [dict allKeys];
    for (NSString  *key in allKeys)
    {
        NSDictionary *innerDict = [dict objectForKey:key];

        NSArray *allInnerKeys = [innerDict allKeys];
        for (NSString  *innerKey in allInnerKeys)
        {
            NSDictionary *mostInnerDict = [dict objectForKey:innerKey];
            NSString *b = [mostInnerDict objectForKey:b];
            NSString *search = @"Technology";
            NSString *sub = [b substringFromIndex:NSMaxRange([b rangeOfString:search])];
            if(sub)
            {
                // ADD mostInnerDict Object to your Results Array
            }

        }
    }

或者你可以试试更简单的方法

获取NSDATA中的响应

将NSDATA转换为NSString

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在NSSTRING中搜索子字符串

谢谢，我想什么问题没有被正确提及，就像我输入“technology”一样，我应该得到所有那些主字典，它们都有technology作为任何键的值。