Select certain row in one of the selections in a table view - iphone

Question

I create a table with two sections. Each section has four cells.I want to push to a new view by navigation controller when a certain cell is pressed by user.
However there are two sections. I don't know how to distinguish the cell selected belongs to which section in
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
Please give me some tips. Thank you very much.
Here's my TableViewController.m
#import "TableViewController.h"
#import "LondonController.h"
#import "NewYorkViewController.h"
#import "ParisViewController.h"
#import "TokyoViewController.h"
#implementation TableViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
}
return self;
}
- (void)dealloc
{
[super dealloc];
[tableDataSource release];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#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];
tableDataSource = [[NSMutableArray alloc]init];
NSMutableArray* sec1 = [[NSMutableArray alloc] init];
[sec1 addObject:#"London"];
[sec1 addObject:#"New York"];
[sec1 addObject:#"Paris"];
[sec1 addObject:#"Tokyo"];
[tableDataSource addObject:sec1];
[sec1 release];
NSMutableArray* sec2 = [[NSMutableArray alloc] init];
[sec2 addObject:#"Elton John"];
[sec2 addObject:#"Michael Jackson"];
[sec2 addObject:#"Little Prince"];
[sec2 addObject:#"SMAP"];
[tableDataSource addObject:sec2];
[sec2 release];
[self.view addSubview:table];
[table release];
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation
{
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;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
if(section == 0)
{
return #"City";
}
else if(section == 1)
{
return #"Person";
}
else
{
return #"Nothing;
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 0)
{
LondonViewController *londonViewController = [[LondonViewController alloc] initWithNibName:#"LondonViewController" bundle:nil];
taipeiViewController.title = #"London Info";
[self.navigationController pushViewController:londonViewController animated:YES];
[londonViewController release];
}
else if (indexPath.row == 1)
{
NewYorkViewController *newYorkViewController = [[NewYorkViewController alloc] initWithNibName:#"NewYorkViewController" bundle:nil];
newYorkViewController.title = #"New York Info";
[self.navigationController pushViewController:newYorkViewController animated:YES];
[newYorkViewController release];
}
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
#end

Answer 1

In
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
you should check indexPath.section value to determine the section of the selected cell.

Answer 2

refer a NSIndexpath reference: http://developer.apple.com/library/ios/#documentation/Cocoa/Reference/Foundation/Classes/NSIndexPath_Class/Reference/Reference.html
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSUInteger section = indexPath.section;
NSUInteger row = indexPath.row;
if (section == 0)
{
LondonViewController *londonViewController = [[LondonViewController alloc] initWithNibName:#"LondonViewController" bundle:nil];
taipeiViewController.title = #"London Info";
[self.navigationController pushViewController:londonViewController animated:YES];
[londonViewController release];
}
else if (section == 1)
{
NewYorkViewController *newYorkViewController = [[NewYorkViewController alloc] initWithNibName:#"NewYorkViewController" bundle:nil];
newYorkViewController.title = #"New York Info";
[self.navigationController pushViewController:newYorkViewController animated:YES];
[newYorkViewController release];
}
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}