How to Get Entire object from NSDictionary - ios

Question

This is the my data.
NSDictionary *dictResponse = [[NSDictionary alloc]init];
//Here is dictResponse value is
(
{
"created_on" = "0000-00-00 00:00:00";
id = 627;
"modified_on" = "0000-00-00 00:00:00";
name = "";
"user_id" = 99;
},
{
"created_on" = "2016-05-06 14:43:45";
id = 625;
"modified_on" = "2016-05-06 14:43:45";
name = Ggg;
"user_id" = 99;
},
{
"created_on" = "2016-05-03 17:21:52";
id = 623;
"modified_on" = "2016-05-03 17:21:52";
name = Qwerty;
"user_id" = 99;
},
{
"created_on" = "2016-04-29 20:12:38";
id = 601;
"modified_on" = "2016-04-29 20:12:38";
name = Teat2;
"user_id" = 99;
},
{
"created_on" = "2016-04-29 20:12:27";
id = 600;
"modified_on" = "2016-04-29 20:12:27";
name = Test1;
"user_id" = 99;
},
{
"created_on" = "2016-05-09 13:04:00";
id = 626;
"modified_on" = "2016-05-09 13:04:00";
name = Testios;
"user_id" = 99;
})
Now I want to access complete one set object i.e.
{
"created_on" = "2016-04-29 20:12:27";
id = 600;
"modified_on" = "2016-04-29 20:12:27";
name = Test1;
"user_id" = 99;
}
from my dictResponse
so when I use
dictResponse[0] or dictResponse1 .. am getting error, so How can I retrieve entire one set from NSDictionary ?
please check below console log output.

Answer 1

You can do like that :
id arrResponse = dictResponse;
if ([arrResponse isKindOfClass:[NSArray class]] && arrResponse != nil && arrResponse != (id)[NSNull null])
{
NSArray *arrResults = arrResponse;
//if you want retrieve specific entries then here is the code for that
for (int i = 0 ; i<arrResults.count; i++) {
NSString *strName = [[arrResults objectAtIndex:i]valueForKey:#"name"];
NSString *strCreated_on = [[arrResults objectAtIndex:i]valueForKey:#"created_on"];
NSString *strModified_on = [[arrResults objectAtIndex:i]valueForKey:#"modified_on"];
NSInteger userID = [[arrResults objectAtIndex:i]valueForKey:#"user_id"];
}
}

Answer 2

You can't access objects in a dictionary using an index (like dictResponse[0]). Objects in a dictionary don't have indexes, they have keys. To get an object from a dictionary you use the objectForKey method:
NSObject* myObject = [dictResponse objectForKey:#"my_key"];

Answer 3

You have not given enough detail in your question, so the following is a guess:
so when I use dictResponse[0] or dictResponse[1] .. am getting error
You never say what error you are getting. I'm guessing you get a compile error and not an execution one?
You seem to know your code is wrong as in the comments you write:
Yes I know this is not valid dictionary value but it is possible to get something like that value in NSDictionary, so question is not wrong, yes my response is array of dictionary. Means from console log I can give dictResponse[0] and it prints first part as expected.
Exactly, you can break the type system and store an array reference into a variable which is typed as holding a dictionary reference, but doing so is not a good idea!
When the compiler sees dictResponse[0] it recognises it syntactically as an array indexing operation, so it looks for a method on dictResponse which does array indexing. All it knows about dictResponse, and remember this is happening at compiler time, is that you have stated it is an NSDictionary *, so it looks for an array indexing method supported by NSDictionary and does not find one, giving the error:
Expected method to read an array element not found on object of type 'NSDictionary *'
Try correctly typing you variable and see if your code works.
HTH