Horizontally and Vertically scrollable table view with data from json - ios

Question

I want to create a table view which is scrollable both horizontally and vertically. I can do this by taking values myself. But I want to take the values from json. I am using model class and my json values are like this:
[
{
"cid": 109,
"iid": 10653,
"yr": 1994,
"val": "15.4311527806175"
},
{
"cid": 109,
"iid": 7872,
"yr": 1999,
"val": "8.84575553637328"
},
{
"cid": 109,
"iid": 7872,
"yr": 1998,
"val": "6.18441582677751"
},
I want my first column to be fixed when scrolling horizontally and first row to be fixed when I scroll it vertically. First column should have iid. first row should have yr and data should have val.
I am using XCMltisortTableView, ASIHttpRequest and SBJson.
I am getting the header value and left column value. How can I get the data corresponding to the yr and iid in proper column?
My code for val in requestFinished method is as follows:
rightTableData = [NSMutableArray arrayWithCapacity:mainTableData.count];
NSMutableArray *right = [NSMutableArray arrayWithCapacity:mainTableData.count];
for (int i = 0; i < mainTableData.count; i++)
{
// Model *model = [mainTableData objectAtIndex:i];
NSMutableArray *array = [NSMutableArray arrayWithCapacity:mainTableData.count];
for (int j = 0; j < headData.count; j++)
{
Model *model = [mainTableData objectAtIndex:j];
if([headData isEqual: #"2000"])
{
[array addObject:[NSString stringWithFormat:#"%#", model.val]];
}
else if([headData isEqual: #"2001"])
{
[array addObject:[NSString stringWithFormat:#"%#", model.val]];
}
else if([headData isEqual: #"2002"])
{
[array addObject:[NSString stringWithFormat:#"%#", model.val]];
}
else if([headData isEqual: #"2003"])
{
[array addObject:[NSString stringWithFormat:#"%#", model.val]];
}
else if([headData isEqual: #"2004"])
{
[array addObject:[NSString stringWithFormat:#"%#", model.val]];
}
else
{
[array addObject:[NSString stringWithFormat:#"%#", model.val]];
}
}
[right addObject:array];
}
[rightTableData addObject:right];
I'm totally new and would a appreciate any answers and any suggestions. Please do reply.
Thanks!

Answer 1

After trying for a long time I got the result using the code below:
-(void) requestFinished: (ASIHTTPRequest *) request
{
NSString *theJSON = [request responseString];
SBJsonParser *parser = [[SBJsonParser alloc] init];
NSMutableArray *jsonDictionary = [parser objectWithString:theJSON error:nil];
headData = [[NSMutableArray alloc] init];
NSMutableArray *head = [[NSMutableArray alloc] init];
leftTableData = [[NSMutableArray alloc] init];
NSMutableArray *left = [[NSMutableArray alloc] init];
rightTableData = [[NSMutableArray alloc]init];
for (NSMutableArray *dictionary in jsonDictionary)
{
Model *model = [[Model alloc]init];
model.cid = [[dictionary valueForKey:#"cid"]intValue];
model.iid = [[dictionary valueForKey:#"iid"]intValue];
model.yr = [[dictionary valueForKey:#"yr"]intValue];
model.val = [dictionary valueForKey:#"val"];
[mainTableData addObject:model];
[head addObject:[NSString stringWithFormat:#"%ld", model.yr]];
[left addObject:[NSString stringWithFormat:#"%ld", model.iid]];
}
NSOrderedSet *orderedSet = [NSOrderedSet orderedSetWithArray:head];
headData = [[orderedSet array] mutableCopy];
NSOrderedSet *orderedSet1 = [NSOrderedSet orderedSetWithArray:left];
NSMutableArray *arrLeft = [[orderedSet1 array] mutableCopy];
//remove duplicate enteries from header array
[leftTableData addObject:arrLeft];
NSMutableArray *right = [[NSMutableArray alloc]init];
for (int i = 0; i < arrLeft.count; i++)
{
NSMutableArray *array = [[NSMutableArray alloc] init];
for (int j = 0; j < headData.count; j++)
{
/* NSPredicate *predicate = [NSPredicate predicateWithFormat:#"SELF.iid == %ld", [[arrLeft objectAtIndex:i] intValue]];
NSArray *filteredArray = [mainTableData filteredArrayUsingPredicate:predicate];*/
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"SELF.iid == %ld AND SELF.yr == %ld", [[arrLeft objectAtIndex:i] intValue], [[headData objectAtIndex:j] intValue]];
NSArray *filteredArray = [mainTableData filteredArrayUsingPredicate:predicate];
if([filteredArray count]>0)
{
Model *model = [filteredArray objectAtIndex:0];
[array addObject:model.val];
}
}
[right addObject:array];
}
[rightTableData addObject:right];
}
Hope it helps others.