scrolling in custom uitable view controllers does not work - objective-c

Well I do have a table view controller and is each cell I have assigned my own class. My table view loads normally but there is no scrolling. In the inspector windows I can not see any options in order to enable scrolling.
My code is here:
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
myimages= [NSArray arrayWithObjects: ...//definition of array with 22 images, its sure that everyone exists and I am writing them without the .png
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
#warning Incomplete method implementation.
// Return the number of rows in the section.
return [tracksimages_closed count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// Configure the cell...
//getting the identifier
static NSString *simpleTableIdentifier=#"SimpleTableCell";
//this is the identifier of the custom cell
SimpleTableCell *cell = (SimpleTableCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:#"SimpleTableCell" owner:self options:nil];
cell = [nib objectAtIndex:0];
}
cell.mainImage.image = [UIImage imageNamed:[myimages objectAtIndex:indexPath.row]];
return cell;
}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
*/
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 80;
}
#end
This is my CustomTableCell.m
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
- (void)dealloc {
[mainImage release];
[super dealloc];
}
#end

Finally the problem was that NSArray had to be "retain". i do not know why, but it worked.
In particular my declaration was like this:
myimages= [[NSArray arrayWithObjects: #"data_1",...,nil]retain]

Related

PFQueryTableViewController doesn't find my class

The login and signing up process work well in my code, therefore i have an existing User class, but i'm getting this error Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: ' setObjectForKey: object cannot be nil (key: classname)'
First throw call stack: when i launch the simulator. So i don't understand which class missing or nil, because i've set the User class to query on. (I wanna display the usernames in a list)
#interface Contacts ()
#end
#implementation Contacts
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom the table
// The className to query on
self.parseClassName = #"User";
// The key of the PFObject to display in the label of the default cell style
self.textKey = #"username";
// The title for this table in the Navigation Controller.
self.title = #"Title";
// Whether the built-in pull-to-refresh is enabled
self.pullToRefreshEnabled = YES;
// Whether the built-in pagination is enabled
self.paginationEnabled = YES;
// The number of objects to show per page
self.objectsPerPage = 5;
}
return self;
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
PFUser *currentUser = [PFUser currentUser];
if (currentUser) {
NSLog(#"Current user: %#", currentUser.username);
} else {
[self performSegueWithIdentifier:#"goLogin" sender:self];
}
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (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 - Parse
- (void)objectsDidLoad:(NSError *)error {
[super objectsDidLoad:error];
// This method is called every time objects are loaded from Parse via the PFQuery
}
- (void)objectsWillLoad {
[super objectsWillLoad];
// This method is called before a PFQuery is fired to get more objects
}
// Override to customize what kind of query to perform on the class. The default is to query for
// all objects ordered by createdAt descending.
- (PFQuery *)queryForTable {
PFQuery *query = [PFQuery queryWithClassName:self.parseClassName];
// If no objects are loaded in memory, we look to the cache first to fill the table
// and then subsequently do a query against the network.
if ([self.objects count] == 0) {
query.cachePolicy = kPFCachePolicyCacheThenNetwork;
}
[query orderByAscending:#"priority"];
return query;
}
// Override to customize the look of a cell representing an object. The default is to display
// a UITableViewCellStyleDefault style cell with the label being the first key in the object.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
static NSString *CellIdentifier = #"contactCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell
cell.textLabel.text = [object objectForKey:#"text"];
cell.detailTextLabel.text = [NSString stringWithFormat:#"Priority: %#", [object objectForKey:#"priority"]];
return cell;
}
/*
// Override if you need to change the ordering of objects in the table.
- (PFObject *)objectAtIndex:(NSIndexPath *)indexPath {
return [objects objectAtIndex:indexPath.row];
}
*/
/*
// Override to customize the look of the cell that allows the user to load the next page of objects.
// The default implementation is a UITableViewCellStyleDefault cell with simple labels.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForNextPageAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"NextPage";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.textLabel.text = #"Load more...";
return cell;
}
*/
#pragma mark - Table view data source
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[super tableView:tableView didSelectRowAtIndexPath:indexPath];
}
-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqual:#"goLogin"]) {
[segue.destinationViewController setHidesBottomBarWhenPushed:YES];
}
}
- (IBAction)logoutButton:(id)sender {
[PFUser logOut];
[self performSegueWithIdentifier:#"goLogin" sender:self]; }
#end
Are you sure the initWithStyle method is called? If you're using storyboards, you need to use initWithCoder instead of initWithStyle.
Update
Also, replace
// The className to query on
self.parseClassName = #"User";
with
// The className to query on
self.parseClassName = #"_User";

Adding tableview according to switch

I Have a tabbar with two items, one is a ViewController with a switch, the other is a Tableview, what i want to do is:
when the user hits the button the tableview will earn a new cell...
Codes:
viewclass.h:
#import <UIKit/UIKit.h>
#interface viewclass : UIViewController
#property (strong, nonatomic) IBOutlet UISwitch *myswitch;
#end
viewclass.m:
#import "viewclass.h"
#implementation viewclass
#synthesize myswitch;
- (void)viewDidUnload {
[self setMyswitch:nil];
[super viewDidUnload];
}
#end
tableviewclass.h:
#import <UIKit/UIKit.h>
#interface tableviewclass : UITableViewController{
NSMutableArray *list;
}
#end
tableviewclass.m:
#import "tableviewclass.h"
#import "viewclass.h"
#implementation tableviewclass
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (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
{
classedasrespostas *testswitch;
[super viewDidLoad];
list = [[NSMutableArray alloc] init];
if (testswitch.myswitch.on == YES) {
[list addObject:#"myobject"];
}
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [lista count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
return cell;
}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
#end
This, classedasrespostas *testswitch;, does not create an object; it only declares a pointer that is going to hold the address of an object. Since you don't assign anything to it, there's nothing for it to act on when you get to if (testswitch.myswitch.on == YES) {.
Put NSLog(#"testswitch: %#", testswitch); before the if statement to see the problem.

How to push a table view AND be able to put data in the cells from a segue?

I have a first table view and a segue that pushes to another table view. I'm already able to push the second table view when the user touches a cell from the first table view, but I can't but data in the second table view. My second table view is using my custom controller which inherits from UITableViewController. I use the method "cellForRowAtIndexPath:(NSIndexPath *)indexPath" to put text in my cells, but the code never gets to that method. I don't understand what the problem is.
Here is my custom class:
#import "TableViewControllerTop.h"
#interface TableViewControllerTop ()
#end
#implementation TableViewControllerTop
#synthesize tableView;
#synthesize cells;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)viewDidUnload
{
[self setTableView:nil];
[self setCells:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return 0;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
#warning Incomplete method implementation.
// Return the number of rows in the section.
return 6;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Top 50 list";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell...
cell.textLabel.text = #"Test";
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"selected");
}
#end
Thanks for your help. I can post more code if necessary.
Looks like your code is returning 0 for number of sections. So therefore it thinks there is nothing to show.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return 0;
}

How to Programmatically Create UITableView and Populate with NSArray in Xcode 4.2?

I have been struggling to understand the difference between Storyboards and coding in Objective-C. It appears you can create a UITableView by both dragging the object into your Storyboard, or coding in a new view within Objective-C.
The problem is that I want to keep my Storyboard as slim as possible. So I'm trying to build and populate a UITableView with an NSArray of 5 strings. My code will only run 1 row before returning a compiler error... I am going to scrap the whole project and start fresh.
I would be very grateful if somebody familiar with the new Xcode 4.2/iOS5/Storyboards can provide a reasonable solution for building the UITableView. I know this is such a basic task which is why it's so frustrating to begin with. I can get the Table View working, but I cannot seem to get an Array to dynamically fill and create #X number of rows...
Let me know if I can provide any more info. I've tried to be as straightforward as possible - just need to get a TableView working and populate with an Array :)
EDIT - here is my project source code you can download to check out where I'm at.
The reason it crashes is that in the storyboard you have to change the tableview to dynamic prototypes instead of static cells.
For some reason Static Cells is the default setting. Once you get the hang of the Storyboards it's great, especially when dealing with tableviews. Your initial View is set up as the NavigationController which has your MasterviewController as the RootViewController, so it's being loaded as the firstView. Click on the TableView in the MainStoryboard and change the Cels to Dynamic Prototypes or it will use the static ones that you create right in the storyboard. You can make custom cells right on the tableview in the storyboard. One more thing to note is the re-use identifier has to be set to the same name in the storyboard and the TableViewController.
You can also just up the count of static cells to the number you want if you know it will always be the same.
Here's a trivial sample with subclassing UITableViewController populated with an NSArray (NSMutableArray) from my sample code. It doesn't use story boards but you said that's OK in your comment. Hopefully my sample code helps you.
Header:
#interface MainTableViewController : UITableViewController
{
NSMutableArray *_items;
}
#end
Implementation:
#implementation MainTableViewController
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark -
#pragma mark Lifetime
#pragma mark -
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self)
{
// datastore
_items = [[NSMutableArray alloc] init];
for (int index=0; index < 5; index++)
{
[_items addObject:[NSString stringWithFormat:#"item #%d", index]];
}
}
return self;
}
- (void)dealloc
{
[_items release];
[super dealloc];
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark -
#pragma mark Table View DataSource
#pragma mark -
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// a typical table has one section
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// number of rows
return [_items count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// NSIndexPath contains an array of indexes. For UITableView:
// indexAtPosition:0 is the section number
// indexAtPosition:1 is the row number
// create an identifier for this type of cell
static NSString *CellIdentifier = #"Cell";
// get a cell of this type from the re-use queue or create one
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
NSString *title = [_items objectAtIndex:[indexPath indexAtPosition:1]];
[[cell textLabel] setText:title];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
return cell;
}
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
// Delete the row from the data source
NSLog(#"delete section: %d rol: %d", [indexPath indexAtPosition:0], [indexPath indexAtPosition:1]);
[_items removeObjectAtIndex:[indexPath indexAtPosition:1]];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert)
{
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
NSLog(#"insert section: %d rol: %d", [indexPath indexAtPosition:0], [indexPath indexAtPosition:1]);
}
}
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
NSString *fromItem = [_items objectAtIndex:[fromIndexPath indexAtPosition:1]];
[_items removeObjectAtIndex:[fromIndexPath indexAtPosition:1]];
[_items insertObject:fromItem atIndex:[toIndexPath indexAtPosition:1]];
}
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
return
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark -
#pragma mark UITableViewDelegate
#pragma mark -
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"selected section: %d rol: %d", [indexPath indexAtPosition:0], [indexPath indexAtPosition:1]);
// get the selected cell
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
// navigate to detail
DetailedTableViewController *detailedView = [[DetailedTableViewController alloc] init];
[[self navigationController] pushViewController:detailedView animated:YES];
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark -
#pragma mark View lifecycle
#pragma mark -
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Uncomment the following line to preserve selection between presentations.
self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
[[self navigationItem] setRightBarButtonItem: [self editButtonItem]];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end

UItableviewController doesn't load data

Hi guys i have a UITableviewcontroller class, i am calling it from otherview and pushing it on the navigationcontroller.
Streets_view_Controller_iPhone * street_controller = [[Streets_view_Controller_iPhone alloc]initWithStyle:UITableViewStylePlain];
street_controller.riding_number = [assignment objectForKey:#"Riding_Number"];
street_controller.polling_number = [assignment objectForKey:#"Poll"];
[self.navigationController pushViewController:street_controller
animated:YES];
and here is my tableview controller class
"Streets_view_Controller_iPhone.m"
#import "Streets_view_Controller_iPhone.h"
#implementation Streets_view_Controller_iPhone
#synthesize riding_number;
#synthesize polling_number;
#synthesize data;
- (NSString *)dataFilePathwithFilename:(NSString*)name
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return [documentsDirectory stringByAppendingPathComponent:name];
}
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:UITableViewStylePlain];
if (self)
{
// Custom initialization
}
return self;
}
- (void)dealloc
{
[riding_number release];
[polling_number release];
[data release];
[super dealloc];
}
- (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
{
self.title = #"Streets";
NSString * filepath = [self dataFilePathwithFilename:[NSString stringWithFormat:#"%#_%#.plist",self.riding_number,self.polling_number]];
NSLog(#"%#",filepath);
NSArray * streets = [[NSArray alloc] initWithContentsOfFile:filepath];
self.data = streets;
[streets release];
[super viewDidLoad];
[self.tableView reloadData];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 0;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// return [data count];
// NSLog(#"%d",[data count]);
return 2;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString * StreetLevelCell= #"StreetLevelCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
StreetLevelCell];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:StreetLevelCell] autorelease];
// NSUInteger row = [indexPath row];
// NSDictionary * streets_data = [data objectAtIndex:row];
//cell.textLabel.text = [streets_data objectForKey:#"Street_name"];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.text = #"test for streets";
return cell;
}
return cell;
}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
*/
}
#end
But for some reason i amnot getting anything in the cell, just the title of the view i.e Streets . and empty table
Nothing will show up in your table because of the following:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 0;
}
You must have at least one section in your table for it to show any data. Try return 1; and see if it works.