Put JSON elements in TableView as Sections Title and Cell title - ios

Question

Below is JSON, and need to put it in table view such that "subitemname" becomes the section title and "subtosubitemname" becomes the title for cell.
I am trying it but didn't get successful.
Title for section is in place but title for rows is not retrieved.
here is the code I tried.
- (void)viewDidLoad {
[super viewDidLoad];
NSString *urlString = [NSString stringWithFormat:#"URL"];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"GET"];
NSError *error;
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *str=[[NSString alloc]initWithData:returnData encoding:NSUTF8StringEncoding];
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:&error];
NSArray *DATAA=[jsonDict objectForKey:#"Menu"];
subid=[DATAA valueForKey:#"subitemid"];
subname=[DATAA valueForKey:#"subitemname"];
NSArray *sub= [DATAA valueForKey:#"Submenu"];
_SubItemName=[sub valueForKey:#"subtosubitemname"];
_SubItemId=[sub valueForKey:#"subtosubitemid"];
}
#pragma mark - Table view data source
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{ return [subname objectAtIndex:section];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [subid count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [_SubItemId count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
cell=[tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
NSArray *subn=[_SubItemName objectAtIndex:indexPath.section];
cell.textLabel.text=[subn objectAtIndex:indexPath.row];
return cell;
}
where subname is an array having "subitemname" objects and _SubItemName is an array having "subtosubitemname" objects.
{ "Menu":
[{"subitemid":1,
"itemid":1,
"subitemname":"TELEVISIONS",
"ordernum":1,
"Submenu":
[{
"subitemid":1,
"subtosubitemid":1,
"itemid":1,
"subtosubitemname":"FULL HD TV"},
{
"subitemid":1,
"subtosubitemid":2,
"itemid":1,
"subtosubitemname":"SMART TV"
}
]
},
{
"subitemid":2,
"itemid":1,
"subitemname":"AUDIO & VIDEO",
"ordernum":2,
"Submenu":
[{
"subitemid":2,
"subtosubitemid":3,
"itemid":1,
"subtosubitemname":"HOME AUDIO SYSTEMS"
},
{
"subitemid":2,
"subtosubitemid":4,
"itemid":1,
"subtosubitemname":"DTH SERVICES"
},
{
"subitemid":2,
"subtosubitemid":5,
"itemid":1,
"subtosubitemname":"AUDIO & VIDEO ACCESSORIES"
},
{
"subitemid":2,
"subtosubitemid":11,
"itemid":1,
"subtosubitemname":"PROJECTORS"
}
]
},
{
"subitemid":3,
"itemid":1,
"subitemname":"LARGE APPLIANCES",
"ordernum":3,
"Submenu":
[
{
"subitemid":3,
"subtosubitemid":14,
"itemid":1,
"subtosubitemname":"WASHING MACHINES & DRYERS"
},
{
"subitemid":3,
"subtosubitemid":16,
"itemid":1,
"subtosubitemname":"AIR CONDITIONERS"
},
{
"subitemid":3,
"subtosubitemid":18,
"itemid":1,
"subtosubitemname":"REFRIGERATORS"
},
{
"subitemid":3,
"subtosubitemid":19,
"itemid":1,
"subtosubitemname":"INVERTERS & BATTERIES"
}]}]}

Answer 1

NSMutableArray *menuData = [jsonDict objectForKey:#"Menu"];
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
return [[menuData objectAtIndex:section] objectForKey:#"subitemname"];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [menuData count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NSArray *subMenuData = [[menuData objectAtIndex:section] objectForKey:#"Submenu"];
return [subMenuData count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
cell=[tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
NSDictionary *cellData = [[[menuData objectAtIndex:section] objectForKey:#"Submenu"] objectAtIndex:indexPath.row];
cell.textLabel.text=[cellData objectForKey:#"subtosubitemname"];
return cell;
}
Hope this work for you.

Answer 2

Try this ... Just one array is enough.. menu = [jsonDict objectForKey:#"Menu"];
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return menu[indexPath.section][#"subitemname"];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [menu count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NSArray *submenu = menu[indexPath.section][#"Submenu"];
return [submenu count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
cell=[tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
NSArray *submenu = menu[indexPath.section][#"Submenu"];
cell.textLabel.text = submenu[indexPath.row][#"subtosu‌​bitemname]";
return cell;
}