How to get display data in UITableView Section tables with single Array - iphone

Question

I have data on a server which I want to show in the a tableView.
The problem is that I want to show data based on categories so I have array categories which has categories which will be section titles and inside them there data so for display the data in section I have to declare Array.
e.g. If there are three categories then we have to make three array to populate data but what if there are more categories as categories are dynamic and come from server.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [categoryArray count] ;
}
And how to set title for section title, as it is in category array, so if it is section one by one in array.
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
NSLog(#"Number of Sections");
if(section == 0)
return #"Sales";
if(section == 1)
return #"Soft Skills";
}
How to show data in tableView cells may I create arrays for all the categories?
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (section==0)
{
appDelegate = (MultipleDetailViewsWithNavigatorAppDelegate *)[[UIApplication sharedApplication] delegate];
int count=[resultArray count];
NSLog(#"resultArry Row Counts is %d",count);
return [resultArray count];
}
else{
appDelegate = (MultipleDetailViewsWithNavigatorAppDelegate *)[[UIApplication sharedApplication] delegate];
int count=[resultArrayOne count];
NSLog(#"resultArry Row Counts is %d",count);
return [resultArrayOne count];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"Table Cell Data");
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
if (indexPath.section==0) {
appDelegate = (MultipleDetailViewsWithNavigatorAppDelegate *)[[UIApplication sharedApplication] delegate];
ObjectData *theCellData = [resultArray objectAtIndex:indexPath.row];
NSString *cellValue =theCellData.sub_Category;
cell.font=[UIFont fontWithName:#"Helvetical Bold" size:14];
NSLog(#"Cell Values %#",cellValue);
cell.textLabel.text = cellValue;
return cell;
}
else {
appDelegate = (MultipleDetailViewsWithNavigatorAppDelegate *)[[UIApplication sharedApplication] delegate];
ObjectData *theCellData = [resultArrayOne objectAtIndex:indexPath.row];
NSString *cellValue =theCellData.sub_Category;
cell.font=[UIFont fontWithName:#"Helvetical Bold" size:14];
NSLog(#"Cell Values %#",cellValue);
cell.textLabel.text = cellValue;
return cell;
}
}

Answer 1

Since getting the categories from the server does not seem to be your question I base my answer on pre filled arrays for a better visualization.
NSMutableArray *categories = #[#"Cat1", #"Cat2"];
// creata a dictionary with all the array for the categorie rows
NSMutableDictionary *rowDict = #{#"Cat1":#[#"Cat1Row1",#"Cat1Row2",#"..."],
#"Cat2":#[#"Cat2Row1", #"Cat2Row2",#"..."]
Key to this solution is that you use the category string as key for the dictionary.
You can now access the title like this
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return categories[section];
}
And access your rows like this
- (UITableViewCell *)cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// ...
// create or deque a cell like you normally would do
// now configure the cell
cell.textLable.text = [rowDict[categories[indexPath.section]] objectAtIndex:indexPath.row]
}

Answer 2

use
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [categoryArray objectAtindex:section];
}
for section title.
likewise, store the values for each categories in a nsmutable array NSDictionary and display the data for each category in uitableviewcell.

Answer 3

Try the below code. It'll solve your problem :
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [categoryArray objectAtIndex:section];
}
EDIT :
First Create a model data class to store data of your categories.
Use this model class to feel your numberOfRowsInSection and cellForRowAtIndexPath delegate function.
Instead of creating different-different array for each category. Store this array in one model class. It'll be easy to handle.