Retrieve a data from json ios - ios

Question

This is the content of dictionary *data
Data = {
Specialities = (
{
ApprovalStatus = Unapproved;
CurrencyCode = "<null>";
Packages = "<null>";
Photos = "<null>";
ServiceDescription = 356563;
Speciality = 22;
SpecialityName = "Wedding Photographer";
UserFRPs = "<null>";
Videos = (
{
VideoId = TWhSjpsGvPQ;
VideoLink = "http://www.youtube.com/watch?v=TWhSjpsGvPQ";
VideoType = YouTube;
},
{
VideoId = N2CJrhHEydA;
VideoLink = "http://www.youtube.com/watch?v=N2CJrhHEydA";
VideoType = YouTube;
},
{
VideoId = Lq6faQVYcwY;
VideoLink = "http://www.youtube.com/watch?v=Lq6faQVYcwY";
VideoType = YouTube;
},
{
VideoId = v8WjMiodcKo;
VideoLink = "http://www.youtube.com/watch?v=v8WjMiodcKo";
VideoType = YouTube;
}
);
},
{
ApprovalStatus = Unapproved;
CurrencyCode = "<null>";
Packages = "<null>";
Photos = "<null>";
ServiceDescription = 52454353;
Speciality = 37;
SpecialityName = "Hair and Makeup Stylist";
UserFRPs = "<null>";
Videos = "<null>";
},
{
ApprovalStatus = Unapproved;
CurrencyCode = "<null>";
Packages = "<null>";
Photos = "<null>";
ServiceDescription = 21212;
Speciality = 55;
SpecialityName = Transport;
UserFRPs = "<null>";
Videos = "<null>";
}
);
};
}
This is the response i am getting from json, what logic should i write to retrieve "VideoId" linked to a specific "Speciality" (for ex- Speciality = 22)
if i write following code, i am getting all #"VideoId"
[[[[responseDictionary valueForKey:#"Data"]valueForKey:#"Specialities"]valueForKey:#"Videos"]valueForKey:#"VideoId"]

Answer 1

The parsing way will be something like:
NSDictionary *dataDict = [responseDictionary valueForKey:#"Data"];
NSMutableArray *specialityArray = [dataDict valueForKey:#"Specialities"];
NSDictionary *objectDict = [specialityArray objectAtIndex:your index (0/1/2)];
int *speciality = [[objectDict ValueForKey:#"Speciality"] intValue];
if(speciality = 22)
{
NSMutableArray *videoArray = [objectDict valueForKey:#"Videos"];
NSDictionary *videoObject = [videoArray objectAtIndex:your index (0/1/2)];
NSString *videoID = [videoObject valueForKey:#"VideoId"];
}
Parse the rest accordingly as per your need.

Answer 2

Use this code,
NSArray *wholeArray = [[responseDictionary objectForKey:#"Data"] valueForKey:#"Specialities"];
NSArray *subArray = [[wholeArray objectAtIndex:0] valueForKey:#"Videos"];
subArray is get all the videos values, then you get single value use this code,
NSString *videoID = [[subArray objectAtIndex:i] valueForKey:#"VideoId"];
or you will get all videoID in single variable use this below code,
NSMutableArray *tempArray = [[NSMutableArray alloc] init];
for (int i = 0; i < subArray.count; i++) {
[tempArray addObject:[[subArray objectAtIndex:i] valueForKey:#"VideoId"]];
}
finally tempArray get All the VideoID values, anywhere you use,
NSString *videoID = [tempArray objectAtIndex:0/1/2];
hope its helpful