JSON parsing with AFNetworking and model Class - ios

Question

I am bit confused in fetching data and displaying data from json into my App using Model.
I am having this kind of json data :
{
result
[
{
key : value
key : value
key : value
}
{
key : value
key : value
key : value
}
]
}
I am trying this kind of code:
json = [[NSMutableArray alloc]init];
NSError *writeError = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:responseObject options:NSJSONWritingPrettyPrinted error:&writeError];
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingMutableContainers
error:&writeError];
json = dic[#"Result"];
int i;
for (i = 0; i <= json.count; i++)
{
NSMutableArray *array = json[i];
[json enumerateObjectsUsingBlock:^(id obj, NSUInteger index, BOOL *stop)
{
// Dim = [[DimEntityFull alloc]initWithJSONDictionary:obj];
saveSearch = [[SaveSearchMaster alloc]initWithJSONDictionary:obj];
} ];
}
I am using "AFNetworking" and I am trying to fetch data and store into model class and then display to custom cell labels.
How can I get it.
Thank You.

Answer 1

In your view controller
- (void)viewDidLoad
{
[super viewDidLoad];
[self getUsersList];
}
-(void)getUsersList
{
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:#"application/json"];
[manager POST:[NSString stringWithFormat:#"http://www.yourdomainname.com/getUserList"] parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject)
{
//we will add Modal class objects of users in this array
usersArray=[[NSMutableArray alloc]init];
//getting result dictionary from response
NSDictionary *resultDictinary = [responseObject objectForKey:#"result"];
for (NSDictionary *userDictionary in resultDictinary)
{
//allocating new user from the dictionary
User *newUSer=[[User alloc]initWithDictionary:userDictionary];
[usersArray addObject:newUSer];
}
//in users array, you have objects of User class
//reload your tableview data
[self.TableView reloadData];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
}
Now Create New file Called 'User'
in User.h
#interface User : NSObject
{
NSString *userID;
NSString *firstName;
NSString *lastName;
}
#property (nonatomic, retain)NSString *userID;
#property (nonatomic, retain)NSString *firstName;
#property (nonatomic, retain)NSString *lastName;
-(id)initWithDictionary:(NSDictionary *)sourceDictionary;
#end
in User.m
#import "User.h"
#implementation User
#synthesize userID,firstName,lastName;
-(id)initWithDictionary:(NSDictionary *)sourceDictionary
{
self = [super init];
if (self != nil)
{
self.firstName=[sourceDictionary valueForKey:#"firstName"];
self.lastName=[sourceDictionary valueForKey:#"lastName"];
self.userID=[sourceDictionary valueForKey:#"userID"];
}
return self;
}
#end
in your numberOfRowsInSectionmethod
return usersArray.count;
in your cellForRowAtIndexPath method
User *user=(User *)[usersArray objectAtIndex:indexPath.row];
yourLabel.text=user.firstName;