Add separate title to each section of UITableView - objective-c

Question

I'm learning creating table views in iOS. I know how to create a table of one or more sections, but I don't know how to add a title in front of each section.
Here's my code.
TableViewController.h
#import <UIKit/UIKit.h>
#interface TableViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>{
NSMutableArray *tableDataSource;
}
#end
TableViewController.m
#import "FourthViewController.h"
#implementation TableViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)dealloc{
[super dealloc];
[tableDataSource release];
}
- (void)didReceiveMemoryWarning{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad{
[super viewDidLoad];
UITableView *table = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320, 460) style:UITableViewStyleGrouped];
[table setDataSource:self];
[table setDelegate:self];
[table release];
tableDataSource = [[NSMutableArray alloc]init];
NSMutableArray* sec1 = [[NSMutableArray alloc] init];
[sec1 addObject:#"1"];
[sec1 addObject:#"2"];
[sec1 addObject:#"3"];
[tableDataSource addObject:sec1];
[sec1 release];
NSMutableArray* sec2 = [[NSMutableArray alloc] init];
[sec2 addObject:#"One"];
[sec2 addObject:#"Two"];
[sec2 addObject:#"Three"];
[tableDataSource addObject:sec2];
[sec2 release];
[self.view addSubview:table];
}
- (void)viewDidUnload{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
if ( tableDataSource == nil )
return 1;
return [tableDataSource count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NSInteger bucketCount = -1;
NSObject *target_section;
if ( tableDataSource == nil )
return 0;
if( ( bucketCount = [tableDataSource count] ) < 1 || bucketCount <= section || (target_section = [tableDataSource objectAtIndex:section ]) == nil )
return 0;
return [ (NSMutableArray*)target_section count ];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[NSString stringWithFormat:#"Cell %i",indexPath.section]];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:[NSString stringWithFormat:#"Cell %i",indexPath.section]] autorelease];
}
cell.textLabel.text = (NSString*)[ (NSMutableArray*)[tableDataSource objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
#end

Answer 1

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
if(section == 0)
{
return #"Title0";
}
else if(section == 1)
{
return #"Title1";
}
else
{
return #"Title2";
}
}

Answer 2

Try this:
NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:#"title1",
#"title2",
#"title3",
#"title4",
nil];
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
return [array objectAtIndex:section];
}

Answer 3

You can call table view data source method
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
return #"title for header";
}
Here you will get the section of table view as from that you check your current section
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
if(section == 0)
{
return #"Section 0 title";
}
else if (section == 1){
return #"Section 1 title";
}
return #"title for header";
}