I have a nib that contains two TableViews. The table views are of the same class that I have created that is a subclass of a UITableViewController. I believe that everything is hooked up correctly. However, when I set the UITableView to the UITableViewController then run
[uitableviewcontrollervariablename reloadData];
I first get a warning that the class may not respond to reloadData. I thought all UITableViewControllers had a reloadData class?
I am trying to hook up these items incorrectly?
Update with code:
TopicViewController.h
#interface TopicViewController : UIViewController {
NSInteger topicID;
Topic *topic;
IBOutlet ThoughtTableViewController *featured;
}
#property (retain) Topic *topic;
#property (readonly) NSInteger topicID;
#property (retain) IBOutlet ThoughtTableViewController *featured;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil ID:(NSInteger)ID;
#end
TopicViewController.m
#implementation TopicViewController
#synthesize topic;
#synthesize topicID;
#synthesize featured;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil ID:(NSInteger)ID {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
topicID = ID;
}
return self;
}
- (void)dealloc {
[topic release];
[super dealloc];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
topic = [[Topic alloc] initWithID:topicID];
NSArray *thoughts = [topic getFeaturedThoughts];
featured = [[ThoughtTableViewController alloc] initWithStyle:UITableViewStylePlain thoughts:thoughts];
[self.featured.tableView reloadData];
}
#end
Your hookups are fine… you just have to call that method on the TableView class, not the controller:
[uitableviewcontrollervariablename.tableView reloadData];
EDIT: 10/20/09
Its kind-of tough to see what is going on because you are using IB instead of programatically adding the tables but the hookups should be like this:
UIViewController owns two UITableViews, not two UITableViewControllers
UIViewController acts as a UITableViewDataSource, UITableViewDelegate
Asking each of the tableViews to reload will ask the DataSource for data, in which you will have to differentiate between the two
Here is some code as an example how to do it programatically:
#interface WhateverController : UIViewController <UITableViewDelegate, UITableViewDataSource> {
…
UITableView *tableView1;
UITableView *tableView2;
}
#end
-
#implementation WhateverController
…
- (void)loadView {
[super loadView];
tableView1 = [[UITableView alloc] initWithFrame:CGRectMake(YOUR_FRAME_1)];
tableView2 = [[UITableView alloc] initWithFrame:CGRectMake(YOUR_FRAME_2)];
tableView1.delegate = self;
tableView2.delegate = self;
tableView1.dataSource = self;
tableView2.dataSource = self;
[self.view addSubview:tableView1];
[self.view addSubview:tableView2];
}
-
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
if (tableView == tableView1) {
// return a cell using the data for tableView1
} else if (tableView == tableView2) {
// return a cell using the data for tableView2
}
}
So you will add all the UITableViewDelegate methods and UITableViewDataSource methods you will need to populate the 2 tableViews. When you want to reload the data:
[tableView1 reloadData];
[tableView2 reloadData];
Related
I'm doing a simple image gallery with a collectionview listing my images. Images names are stocked into an array. When I press on an image, it display the picture in a view controller with an imageview.
Now I would like to be able to switch from one image to the next and previous image with a swipe instead of going back to the collection view to change picture. Did I choose a wrong way to achieve my project or is there an easy way to do this?
Thank you already for your help!
Nicolas.
Here's my actual code :
PhotosCollectionViewController.h
import
#interface PhotosCollectionViewController : UICollectionViewController
{
NSArray *photosArray;
}
#end
PhotosCollectionViewController.m
#import "PhotosCollectionViewController.h"
#import "PhotoDetailViewController.h"
#interface PhotosCollectionViewController ()
#end
#implementation PhotosCollectionViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
photosArray = [NSArray arrayWithObjects:#"angry_birds_cake.jpg", #"creme_brelee.jpg", #"egg_benedict.jpg", #"full_breakfast.jpg", #"green_tea.jpg", #"ham_and_cheese_panini.jpg", #"ham_and_egg_sandwich.jpg", #"hamburger.jpg", #"instant_noodle_with_egg.jpg", #"japanese_noodle_with_pork.jpg", #"mushroom_risotto.jpg", #"noodle_with_bbq_pork.jpg", #"starbucks_coffee.jpg", #"thai_shrimp_cake.jpg", #"vegetable_curry.jpg", #"white_chocolate_donut.jpg", nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return photosArray.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *identifier = #"Cell";
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];
UIImageView *photosImageView = (UIImageView *)[cell viewWithTag:100];
photosImageView.image = [UIImage imageNamed:[photosArray objectAtIndex:indexPath.row]];
return cell;
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"pushPhoto"]) {
NSArray *indexPaths = [self.collectionView indexPathsForSelectedItems];
PhotoDetailViewController *destViewController = segue.destinationViewController;
NSIndexPath *indexPath = [indexPaths objectAtIndex:0];
destViewController.photoName = [photosArray objectAtIndex:indexPath.row];
}
}
#end
PhotoDetailViewController.h
#import <UIKit/UIKit.h>
#interface PhotoDetailViewController : UIViewController
#property (strong, nonatomic) IBOutlet UIImageView *photoImageView;
#property (weak, nonatomic) NSString *photoName;
#end
PhotoDetailViewController.m
#import "PhotoDetailViewController.h"
#interface PhotoDetailViewController ()
#end
#implementation PhotoDetailViewController
#synthesize photoImageView;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.photoImageView.image = [UIImage imageNamed:self.photoName];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Just enable user interaction for your UIImageView, attach a UISwipeGestureRecognizer with the direction configured to how you want, and change the image in the UIImageView in the selector you've set in the gesture recogniser.
You are doing it right.Pass the array of images(or urls) and on the next and previous button action(or gesture recogonizer) , load the images from the array and show in the viewcontroller.
Create an array instance "imageArray" in the DetailsedImageVC class
stackedImages be the array in which the images are available
DetailedImageVC *vc=[[DetailedImageVC alloc]initWithNibName:#"DetailedImageVC" bundle:[NSBundle mainBundle]];
vc.imageArray=self.stackedImages ;
[self.navigationController pushViewController:vc animated:YES];
Now you have the array in DetailedImageVC and now on,when the next image needed action just get the image from the array nd load
I'm trying to create a simple TableView in my current project.
but I got this error after connected datasource in IB and run iOS simulator.
2013-03-22 14:58:32.372 M[1875:c07] -[ViewController tableView:numberOfRowsInSection:]:
unrecognized selector sent to instance 0x88191f0
2013-03-22 14:58:32.374 M[1875:c07] *** Terminating app due to uncaught exception
'NSInvalidArgumentException', reason: '-[ViewController tableView:numberOfRowsInSection:]:
unrecognized selector sent to instance 0x88191f0'
,but when I create a simple TableView in an empty project with the same code it's working.
Here is my code
"MCEventActivityViewController.h"
#import <UIKit/UIKit.h>
#interface MCEventActivityViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
#end
"MCEventActivityViewController.m"
#import "MCEventActivityViewController.h"
#interface MCEventActivityViewController ()
#end
#implementation MCEventActivityViewController
{
NSArray *tableData;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
tableData = [NSArray arrayWithObjects:#"1", #"2", #"3", nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [tableData count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
#end
Could anyone help me figure out why this error came out?
The screenshots are here.
Edited:
Make sure,
1.TableView is connected with FileOwner in XIB.
2.#interface Controller : UIViewController UITableViewDelegate,UITableViewDataSource included.
3.Delegate & DataSource both connected with FileOwner.
4.numberOfSections return 1.
5.numberOfRowsInSection returns [required].
6.cellForRowAtIndexPath
{ data goes here...
}
Edited:
Create,
#property (nonatomic,strong) IBOutlet UITabelView * tableView;
and connect this Outlet in Xib with Fileowner
Add numberOfSectionsInTableView method to your code
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return 1;
}
Add NSArray *tableData; to MCEventActivityViewController.h
and set its #property and #synthesize properly.
and write
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
self.tableData = [[NSArray alloc] initWithObjects:#"1", #"2", #"3", nil];
}
You should link the (dataSource and delegate) from Outlets to the view controller not to view ! like these pictures :
I want to pass data from second tab to first tab using delegates.But delegate method not triggered.here is the code (I m using storyboard)
in SecondViewController.h
#import <UIKit/UIKit.h>
#class SecondViewController;
#protocol SecondViewControllerDelegate <NSObject>
-(void) sliderValueDidChanged: (SecondViewController *)controller data:(float) sliderValue;
#end
#interface SecondViewController : UIViewController{
__weak id<SecondViewControllerDelegate> delegate;
}
- (IBAction)sliderPressed:(id)sender;
#property (weak, nonatomic) IBOutlet UISlider *mySlider;
#property(weak,nonatomic) id<SecondViewControllerDelegate> delegate;
#end
in SecondViewController.m
#import "SecondViewController.h"
#interface SecondViewController ()
#end
#implementation SecondViewController
#synthesize mySlider;
#synthesize delegate;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)viewDidUnload
{
[self setMySlider:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (IBAction)sliderPressed:(id)sender {
float value = mySlider.value;
[self.delegate sliderValueDidChanged:self data:value];
NSLog(#"%#",self.delegate);
}
#end
FirstViewController.h
#import <UIKit/UIKit.h>
#import "SecondViewController.h"
#interface FirstViewController : UIViewController<SecondViewControllerDelegate>
#property (weak, nonatomic) IBOutlet UILabel *myLabel;
#end
in FirstViewController.h
#import "FirstViewController.h"
#interface FirstViewController ()
#end
#implementation FirstViewController
#synthesize myLabel;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
SecondViewController *svc = [[SecondViewController alloc]init];
svc.delegate = self;
}
- (void)viewDidUnload
{
[self setMyLabel:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
-(void) sliderValueDidChanged: (SecondViewController *)controller data:(float) sliderValue{
myLabel.text = [[NSString alloc]initWithFormat:#"%f",sliderValue];
NSLog(#"delegate called");
}
#end
I am trying to set a slider in second tab and send the sider value to first tab which has a label. self.delegate printing null and delegate method never called.
Simply enough, as you already have the delegation code, only change the line where you create a SecondViewController object. Rather than creating a new one, you should have a reference to the one that the tab bar will show.
In the viewDidLoad of FirstViewController,
Change
SecondViewController *svc = [[SecondViewController alloc]init];
to
//assuming you have 2 view controllers in the tab bar controller, first being FirstViewController
SecondViewController *svc = [self.tabBarController.viewControllers objectAtIndex:1];
and that should do it
How do you actually get to the second tab? You're creating an instance of it in viewDidLoad, but if you switch tabs, that instance won't be used to show on screen. The system will create another instance which it'll use. You can access this by accessing the tab bar controller's viewcontrollers property and checking for SecondViewController.
EDIT: You could also question your design. I don't know much about your app, but chances are your first tab shouldn't really be the delegate for your second tab. If you want to pass along data, consider using NSNotificationCenter or persistent storage.
I have two view controllers. The CardWallet View Controller is my table view. Then the AddCard View Controller is where I input values for a new instance of an object named Card. So far, I am adding those Card instances in an array named myWallet which is in my CardWallet View Controller using a delegate and it works.
What I want is, after clicking the button in my AddCard View Controller, a new table cell will appear in my Card Wallet View, with the name depending on the recently added instance of Card. Below is my code, kindly check why is it that when I'm finished adding a new instance of Card, nothing appears in my table. I've done some research and went through some tutorials, this one is good, http://kurrytran.blogspot.com/2011/10/ios-5-storyboard-and.html, it helped me a lot regarding table view controllers. However, the tutorial doesn't cater my main concern for it's table's values only come from an array with static values.
Thanks!
CardWalletViewController.h
#import <UIKit/UIKit.h>
#interface CardWalletViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> {
}
#property (nonatomic, strong) NSMutableArray *myWallet;
-(void) printArrayContents;
#end
CardWalletViewController.m
#import "CardWalletViewController.h"
#import "AddCardViewController.h"
#import "Card.h"
#interface CardWalletViewController () <AddCardDelegate>
#end
#implementation CardWalletViewController
#synthesize myWallet = _myWallet;
- (NSMutableArray *) myWallet
{
if (_myWallet == nil) _myWallet = [[NSMutableArray alloc] init];
return _myWallet;
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"showAddCardVC"]) {
AddCardViewController *addCardVC = (AddCardViewController *)segue.destinationViewController;
addCardVC.delegate = self;
}
}
- (void)printArrayContents
{
// I want to show the name of each instance of card
for ( int i = 0; i < self.myWallet.count; i++) {
Card *cardDummy = [self.myWallet objectAtIndex:i];
NSLog(#"Element %i is %#", i,cardDummy.name );
}
}
- (void)addCardViewController:(AddCardViewController *)sender didCreateCard:(Card *)newCard
{
// insert a new card to the array
[self.myWallet addObject:newCard];
[self printArrayContents];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
// Release any retained subviews of the main view.
}
- (void)viewWillAppear:(BOOL)animated
{
}
- (void)viewWillDisappear:(BOOL)animated
{
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
//this method will return the number of rows to be shown
return self.myWallet.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell...
//---------- CELL BACKGROUND IMAGE -----------------------------
UIImageView *imageView = [[UIImageView alloc] initWithFrame:cell.frame];
UIImage *image = [UIImage imageNamed:#"LightGrey.png"];
imageView.image = image;
cell.backgroundView = imageView;
[[cell textLabel] setBackgroundColor:[UIColor clearColor]];
[[cell detailTextLabel] setBackgroundColor:[UIColor clearColor]];
//this will show the name of the card instances stored in the array
//
for ( int i = 0; i < self.myWallet.count; i++) {
Card *cardDummy = [self.myWallet objectAtIndex:i];
cell.textLabel.text = cardDummy.name;
}
//Arrow
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
#end
AddCardViewController.h
#import <UIKit/UIKit.h>
#import "Card.h"
#class AddCardViewController;
#protocol AddCardDelegate <NSObject>
- (void)addCardViewController:(AddCardViewController *)sender
didCreateCard:(Card *) newCard;
#end
#interface AddCardViewController : UIViewController <UITextFieldDelegate>
#property (strong, nonatomic) IBOutlet UITextField *cardNameTextField;
#property (strong, nonatomic) IBOutlet UITextField *pinTextField;
#property (strong, nonatomic) IBOutlet UITextField *pointsTextField;
#property (nonatomic, strong) id <AddCardDelegate> delegate;
#end
AddCardViewController.m
#import "AddCardViewController.h"
#import "Card.h"
#import "CardWalletViewController.h"
#interface AddCardViewController ()
#end
#implementation AddCardViewController
#synthesize cardNameTextField = _cardNameTextField;
#synthesize pinTextField = _pinTextField;
#synthesize pointsTextField = _pointsTextField;
#synthesize delegate = _delegate;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void) viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[self.cardNameTextField becomeFirstResponder];
}
- (void) viewWillDisappear:(BOOL)animated
{
}
- (BOOL) textFieldShouldReturn:(UITextField *)textField{
if ([textField.text length]) {
[self.cardNameTextField resignFirstResponder];
[self.pinTextField resignFirstResponder];
[self.pointsTextField resignFirstResponder];
return YES;
}
else {
return NO;
}
}
- (void)viewDidLoad
{
self.cardNameTextField.delegate = self;
self.pinTextField.delegate = self;
self.pointsTextField.delegate = self;
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
[self setCardNameTextField:nil];
[self setPinTextField:nil];
[self setPointsTextField:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (IBAction)addCard:(id)sender
{
Card *myNewCard = [[Card alloc] init];
myNewCard.name = self.cardNameTextField.text;
myNewCard.pin = self.pinTextField.text;
myNewCard.points = [self.pointsTextField.text intValue];
// to check if the text fields were filled up by the user
if ([self.cardNameTextField.text length] && [self.pinTextField.text length] && [self.pointsTextField.text length])
{
[[self presentingViewController] dismissModalViewControllerAnimated:YES];
NSLog(#"name saved %#", myNewCard.name);
NSLog(#"pin saved %#", myNewCard.pin);
NSLog(#"points saved %i", myNewCard.points);
[self.delegate addCardViewController:self didCreateCard:myNewCard];
// to check if there is a delegate
if (self.delegate){
NSLog(#"delegate is not nil");
}
}
}
#end
Card.h
#import <Foundation/Foundation.h>
#interface Card : NSObject
#property (nonatomic, strong) NSString *name;
#property (nonatomic, strong) NSString *pin;
#property (nonatomic) int points;
#end
Card.m
#import "Card.h"
#implementation Card
#synthesize name = _name;
#synthesize pin = _pin;
#synthesize points = _points;
#end
I should get the obvious question out of the way before anyone starts dwelling too deep into this - do you have some mechanism of reloading the data after you add a new card (e.g. call [tableView reloadData] from the CardWalletViewController)? I didn't see anything like that, and I've always used this whenever I add something new to a table.*
*If the table contains too much data, you may want to reload only a part of it.
Update 1: Class Inheritance
Every Objective C class has to inherit from some other class in the hierarchy. By default, unless you say otherwise, all of your custom classes will inherit from NSObject, which is the most generic object out there (equivalent of Object, if you've done Java programming). Changing the parent class is done by simply changing the class after the : in your interface declaration. So when you say
#interface CardWalletViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
what you are saying is "declare a CardWallerViewController custom class that inherits from UIViewController and implements the UITableViewDelegate and UITableViewDataSource protocols" (if you don't know what protocols are, ask).
Now, back to your question. Changing the parent class should be easy now - you just change that : UIViewController to : UITableViewController and you are done. After you do this, your CardWallerViewController (also, "Waller", really?) will behave like a UITableView, not like a generic UIView. When doing this, you will also not need to tell it to implement the delegate and dataSource protocols - UITableViewController does that by default.
As a final note, when you add new files to your Xcode project, you can tell the program which class you want to inherit from. It defaults to UIView for views, but that's simply because this is the most generic view class. As you begin to use more specific classes (UITableViewController, UIPickerViewController, UITableViewCell, to name a few), changing the parent class off the bat will prove to be more than helpful.
Update 2: UITableViewCells
That for-loop you've got going there is a (relatively) lot of work you don't need to do. Since your table corresponds directly to your myWallet property, this means that the cell in row N of your table will represent the card at index N of your array. You can use that to your advantage. In the tableView:cellForRowAtIndexPath: method, you tell the program what to do with the cell at the specific indexPath (which is really just section + row for that table). The trick is, this method instantiates the cells one at a time. So instead of doing the for-loop, you can just say (at the end)
cell.textLabel.text = [self.myWallet objectAtIndex:indextPath.row].name;
For any cell in row N, this will look at the Nth Card object inside myWallet and use its name to set the cell's textLabel.text. If it gives you problems, save [self.myWallet objectAtIndex:indextPath.row] in some tempCard object, and then do cell.textLabel.text = tempCard.name. This is also the proper way to populate cells in a tableView - you only care about one cell at a time, because that's how the method works anyway. Imagine if you had 1,000,000 Cards inside your array - doing the for-loop would force the program to go through the array 1,000,000 times for each cell. Say hello to a 1,000,000,000,000 operations :)
i think u can add the imageview as subview to cell
UIImageView *imageView = [[UIImageView alloc] initWithFrame:cell.frame];
UIImage *image = [UIImage imageNamed:#"LightGrey.png"];
imageView.image = image;
[cell addSubview:imageView];
[[cell textLabel] setBackgroundColor:[UIColor clearColor]];
[[cell detailTextLabel] setBackgroundColor:[UIColor clearColor]];
Ok, Here is the code in my AppDelegate that loads the Schedule nib.
Schedule *newestVideoController = [[Schedule alloc] initWithNibName:#"Schedule" bundle:nil];
newestVideoController.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Schedule" image:[UIImage imageNamed:#"app-icon_2_newest.png"] tag:2];
NSArray *controllers = [NSArray arrayWithObjects:navController, newestVideoController, nil];
mainController.viewControllers = controllers;
Now here is my header file for schedule.
#import <UIKit/UIKit.h>
#import "AnotherViewController.h"
#interface Schedule : UITableViewController
<UITableViewDelegate, UITableViewDataSource> {
NSArray *mySchedule;
}
#property (nonatomic,retain) NSArray *mySchedule;
#end
Lastly here again is my implementaion file for "Schedule".
#import "Schedule.h"
#import "AnotherViewController.h"
#implementation Schedule
#synthesize mySchedule;
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return mySchedule.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath{
//create a cell
UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:#"cell"];
//fill it with contents
cell.textLabel.text = [mySchedule objectAtIndex:indexPath.row];
//return it
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
AnotherViewController *anotherViewController = [[AnotherViewController alloc] initWithNibName:#"AnotherViewController" bundle:nil];
[self.navigationController pushViewController:anotherViewController animated:YES];
[anotherViewController release];
}
/*
// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
}
return self;
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
NSString *myFile = [[NSBundle mainBundle] pathForResource:#"exercise" ofType:#"plist"];
mySchedule = [[NSArray alloc] initWithContentsOfFile:myFile];
[super viewDidLoad];
}
/*
// Override to allow orientations other than the default portrait orientation.
- (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.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
#end
Need more code/info. It looks like you implemented tableView:didSelectRowAtIndexPath: and pushed another View Controller onto the stack correctly, so it's hard to say. But here's a hit list:
Are you certain tableView:didSelectRowAtIndexPath: is getting called? Did you set a breakpoint? If not, you may have forgotten to set your Schedule class as the delegate either programatically or in Interface Builder.
Is schedule's navigation controller definitely set? That is, was it pushed onto a Navigation Controller stack?
Are you sure the nib file for AnotherViewController exists?