Advice on creating table with dynamic data in IOS - ios

Question

I am trying to create a table with dynamic data and I'm kind of stuck. Here is how my data is structured :
NSMutableArray *bigArray;
bigArray has many NSDictionary items.
each items has only one entry.
sectionName is the key, NSMutableArray is the value.
There are many objects in the value NSMutableArray.
I tried to explain this as simple as I could, here is the part where I'm stuck.
//easy
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [bigArray count];
}
//medium
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [[[[bigArray objectAtIndex:section] allValues] objectAtIndex:0] count];
}
I can't figure out this part how to implement this method based on my current data structure :
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:#"MyCell"];
MyObject *obj = //Need this part
cell.textLabel.text = obj.name;
return cell;
}
Simply put, I'm trying to insert dynamic sections with dynamic data. I'm looking for advice from more experienced developers, how would you tackle this?

Answer 1

Assuming I understood well how your data is structured, here's how I would do it:
(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"MyCell"];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"MyCell"];
}
//this will get you the dictionary for the section being filled
NSDictionary *item = [bigArray objectAtIndex:indexPath.section];
// then the array of object for the section
NSMutableArray *mutableArray = [item objectForKey:#"sectionName"];
//you then take the object for the row
MyObject *obj = [mutableArray objectAtIndex:indexPath.row];
cell.textLabel.text = obj.name;
return cell;
}
Don't forget to set the reuse identifier for the cell prototype in the attributes inspector