call for nested json objects, in ios - ios

Question

I'm working on a ios project. I used AFNetworking to call json.
I just want to call for an specific json object. that meant for an specific nested json object.please help me to do that. as an example this is my json feed. In here I want to call for only first url inside thumbnail.
{ status:"ok",
count:50,
count_total:44444,
pates:333,
- posts:[
- {
id:3333,
type:"post",
- thumbnail_images :{
- full : {
url:"",
width:666
},
-thumbnail:{
url:"",
width:333
},
- large:{
url:"",
width:777
}
}
},
- {
id:3334,
type:"post",
- thumbnail_images :{
- full : {
url:"",
width:6644
},
-thumbnail:{
url:"",
width:3345
},
- large:{
url:"",
width:7778
}
}
},
- {
id:333344,
type:"post",
- thumbnail_images :{
- full : {
url:"",
width:6665
},
-thumbnail:{
url:"",
width:3336
},
- large:{
url:"",
width:7770
}
}
},
]
}
and also this is my objective-C method.
- (void)loadImagesToCategoryone
{
imagespost = nil;
NSString *urlOne = [NSString stringWithFormat:#"some url"];
AFHTTPRequestOperationManager *managerone = [AFHTTPRequestOperationManager manager];
[managerone GET:urlOne parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
imagesposts = (NSDictionary *)responseObject;
NSArray *resultone = [imagesposts objectForKey:#"posts"];
imagespost = [NSMutableArray array];
for (NSDictionary *imageone in resultone)
{
Categories *categoryone = [Categories new];
NSArray *firstArray = [imageone objectForKey:#"thumbnail_images"];
NSLog(#"%#",firstArray[0]);
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
}];
}

Answer 1

note that the thumbnail_images is a Dictionary not an Array.
NSArray *resultone = [imagesposts objectForKey:#"posts"];
if ([resultone count]) {
//If need thumbnail of first post only then
NSDictionary *firstPost = resultone[0];
Categories *categoryone = [Categories new];
NSDictionary *imageDetails = [imageone objectForKey:#"thumbnail_images"];
NSDictionary *thumbnailImage = [imageDetails objectForKey:#"thumbnail"];
NSString *urlString = [thumbnailImage objectForKey:#"url"];
//Assume thumbnail image is required
NSLog(#"%#",urlString);
}