In my hello world application, i have a button and a text field set up. You enter your name in the text field then press the button, then you're supposed to see "Hello, [name]!". However all i get is "Hello, World!" (the default for when there's no string in the text box), even when i input a name. As requested, here's the file:
//
// MyViewController.m
// HelloWorld
//
// Created by RCIX on 7/10/09.
// Copyright 2009 __MyCompanyName__. All rights reserved.
//
#import "MyViewController.h"
#implementation MyViewController
#synthesize textField;
#synthesize label;
#synthesize string;
/*
// 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 {
[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 {
[textField release];
[label release];
[string release];
[super dealloc];
}
- (IBAction)changeGreeting:(id)sender {
self.string = textField.text;
NSString *nameString = self.string;
if ([nameString length] == 0) {
nameString = #"World";
}
NSString *greeting = [[NSString alloc] initWithFormat:#"Hello, %#!", nameString];
label.text = greeting;
[greeting release];
}
- (BOOL)textFieldShouldReturn:(UITextField *)theTextField {
[theTextField resignFirstResponder];
return YES;
}
#end
Double-check your connections in Interface Builder. If textField isn't connected properly, then your method won't be able to read the text property of the field right, which may lead to its having a length of 0.
There is no need to make nameString = string, just work on [self string] directly!
Here a working example:
string = textField.text;
if ([string length] == 0) {
string = #"World";
}
NSString *greeting = [NSString stringWithFormat:#"Hello, %#!", string];
[label setStringValue:greeting];
You'll see I changed initWithFormat to stringWithFormat. If you use stringWithFormat, the NSString object is autoreleased, so we don't have to worry about releasing it.
One last thing... I don't really see the need for having "string" be an instance variable, as it is just used temporarily... it might be better to just go
NSString *string = textField.text;
and not have it declared in the #interface... just a thought.
Is the text field hooked up properly in Interface Builder?
Related
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Making the iPhone vibrate
I have two buttons. One button adds up, one button adds down. The question is when I certain number such as lets say 22 is in the text area, the phone vibrates for a certain mount of time. Here is my code for it:
What I am trying to say is IF Label Displays "22" THEN VIBRATE PHONE... The question is how do i go about writing this.. I'm still learning so any help regarding this would be much appreciated! Here is my code so far:
#import "StartCountViewController.h"
#import "AudioToolbox/AudioServices.h"
#implementation StartCountViewController
int Count=0;
-(void)awakeFromNib {
startCount.text = #"0";
}
- (IBAction)addNumber {
if(Count >= 999) return;
NSString *numValue = [[NSString alloc] initWithFormat:#"%d", Count++];
startCount.text = numValue;
[numValue release];
}
- (IBAction)vibrate {
}
- (IBAction)subtractNumber {
if(Count <= -35) return;
NSString *numValue = [[NSString alloc] initWithFormat:#"%d", Count--];
startCount.text = numValue;
[numValue 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.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
#end
This is basically a duplicate of Programmatically make the iPhone vibrate
Having said that, I think your code is still going to have errors, and the syntax seems deprecated.
Here's an example. I didn't try this on an actual iphone which would be required to test the vibration, but it should work provided you add the AudioToolbox framework to your project, and of course your XIB file has the necessary connections:
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
#property (retain, nonatomic) IBOutlet UILabel *numberLabel;
- (IBAction)addNumber:(id)sender;
- (IBAction)subtractNumber:(id)sender;
#end
ViewController.m
#import "ViewController.h"
#import "AudioToolbox/AudioServices.h"
#interface ViewController ()
{
int count;
}
#end
#implementation ViewController
#synthesize numberLabel;
- (void)viewDidLoad
{
count = 0;
[self updateCount];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
[self setNumberLabel:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
- (void)dealloc
{
[numberLabel release];
[super dealloc];
}
- (IBAction)addNumber:(id)sender
{
if(count >= 999) {
return [self vibrate];
}; // ignore numbers larger than 999
count++;
[self updateCount];
}
- (IBAction)subtractNumber:(id)sender
{
if(count <= -35) {
return [self vibrate];
}; // ignore numbers less than -35
count--;
[self updateCount];
}
-(void)updateCount
{
NSString *countStr = [[NSString alloc] initWithFormat:#"%d",count];
[self.numberLabel setText:countStr];
[countStr release];
}
-(void)vibrate
{
NSLog(#"I'm vibrating");
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
#end
what i am trying to do is to put two uipickers on the same view, i read somewhere that one of them should have its own separate delegate i tried to do so but i couldn't make it work properly.
Some times when i run the application the second application just stops working with no errors on the console.
this is the .h file for the view:
#interface FirstViewController : UIViewController {
IBOutlet UIPickerView *cities;
NSMutableArray *array;
NSString *picked;
}
#property(nonatomic,retain) IBOutlet UIPickerView *cities;
#property(nonatomic,retain) IBOutlet NSMutableArray *array;
and here is the .m:
#implementation FirstViewController
#synthesize cities,array;
-(void) getCities:(NSString *)link{
url=link;
NSString *str=[[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:url]];
if([str length]==0){
[str release];
return;
}
SBJsonParser *parser=[[SBJsonParser alloc] init];
array=[[parser objectWithString:str] copy];
[receivedData release];
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView { // This method needs to be used. It asks how many columns will be used in the UIPickerView
return 1; // We only need one column so we will return 1.
}
- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component { // This method also needs to be used. This asks how many rows the UIPickerView will have.
return [array count]; // We will need the amount of rows that we used in the pickerViewArray, so we will return the count of the array.
}
- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { // what happens when selecting rows
picked=[array objectAtIndex:row];
}
- (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { //method asks for what the title or label of each row will be
return [array objectAtIndex:row]; // We will set a new row for every string used in the array.
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
[sv setScrollEnabled:TRUE];
[sv setContentSize:CGSizeMake(320, 800)];
[self getCities:#"any url"];
[super viewDidLoad];
}
- (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
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc
{
[super dealloc];
}
#end
and for the second uipicker i added an nsobject to the view and changed its class to "SecondPickerDelegate" which i created before and this is its code:
.h
#import <UIKit/UIKit.h>
#interface FirstViewSecondPickerDelegate : UIViewController<UIPickerViewDelegate>{
IBOutlet UIPickerView *specialities;
NSMutableArray *array;
NSString *picked;
}
#property(nonatomic,retain) IBOutlet UIPickerView *specialities;
#property(nonatomic,retain) NSMutableArray *array;
#property(nonatomic,retain) NSString *picker;
#end
the .m file:
#import "FirstViewSecondPickerDelegate.h"
#import "JSON.h"
#implementation FirstViewSecondPickerDelegate
#synthesize specialities,array,picker;
-(void) getSpecialities:(NSString *)link{
url=link;
NSString *str=[[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:url]];
if([str length]==0){
[str release];
return;
}
SBJsonParser *parser=[[SBJsonParser alloc] init];
array=[[parser objectWithString:str] copy];
for(int i=0;i<[array count];i++){
NSLog(#"index %i",i);
NSLog(#"value %#",[array objectAtIndex:i]);
}
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView { // This method needs to be used. It asks how many columns will be used in the UIPickerView
return 1; // We only need one column so we will return 1.
}
- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component { // This method also needs to be used. This asks how many rows the UIPickerView will have.
return [array count]; // We will need the amount of rows that we used in the pickerViewArray, so we will return the count of the array.
}
- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { // what happens when selecting rows
picked=[array objectAtIndex:row];
}
- (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { //method asks for what the title or label of each row will be
return [array objectAtIndex:row]; // We will set a new row for every string used in the array.
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
picked=#"1";
[self getSpecialities:#"http://localhost:8080/Test/gs"];
}
return self;
}
/*
-(void) viewDidLoad{
[super viewDidLoad];
}
*/
- (void)dealloc
{
[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
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView
{
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (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);
}
#end
If any one has a working example for such case please help.
You don't need separate delegates for two UIPickerView's in the same view.
Use the UIPickerView tag property, and then you can differentiate between them in delegate methods.
Hello I'm new to developing and I was wondering if any of you pros would know how to fix this issue.
My code is Below: InstaTwitViewController.m:
#import "InstaTwitViewController.h"
#implementation InstaTwitViewController
/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/
/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
activities = [[NSArray alloc] initWithObjects:#"sleeping",
#"eating", #"working", #"thinking", #"crying", #"begging",
#"leaving", #"shopping", #"hello worlding", nil];
feelings = [[NSArray alloc] initWithObjects: #"awesome",
#"sad", #"happy", #"ambivalent", #"nauseous", #"psyched",
#"confused", #"hopeful", #"anxious", nil];
}
*/
/*
// 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 {
[activities release];
[feelings release];
[super dealloc];
}
- (NSInteger)numberOfComponentsInPickerView: (UIPickerView *)
pickerView {
return 2;
}
- (NSInteger)pickerView:(UIPickerView *)
pickerViewnumberOfRowsInComponent :(NSInteger)component {
if (component == 0) {
return [activities count];
}
else {
return [feelings count];
}
}
#end
Next to [activities count] and [activities release] it states an error "'activities' undeclared"
InstaTwitViewController.h:
//
// InstaTwitViewController.h
// InstaTwit
//
// Created by John Bridge on 5/2/11.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import <UIKit/UIKit.h>
#interface InstaTwitViewController : UIViewController
<UIPickerViewDataSource, UIPickerViewDelegate> {
NSArray* actvities;
NSArray* feelings;
}
#end
EDIT
You have a typo in your property declaration.
actvities should be activities, with an i.
You should be more careful while coding, and reading your own code...
EDIT END
Apparently, you haven't declared the activities variable. That's why XCode says it's undeclared...
I guess it should be an NSArray... You need to declare the variable in your class interface (the header file).
Something like:
#interface InstaTwitViewController: UIViewController
{
NSArray * activities;
}
#end
Then, in your implementation, you need to allocate it, for instance in the init method:
- ( id )initWithNibName: ( NSString * )nibNameOrNil bundle: ( NSBundle * )nibBundleOrNil
{
if( ( self = [ super initWithNibName: nibNameOrNil bundle: nibBundleOrNil ] ) )
{
activities = [ NSArray new ];
}
return self;
}
And don't forget to release it in the dealloc method:
- ( void )dealloc
{
[ activities release ];
[ super dealloc ];
}
Remove the /* and */ code before and after the viewDidLoad method, and declare an NSArray called activities in your .h file.
NSArray *activities;
EDIT---- As MacMade said, just fix the spelling mistake!
I i'm developing a News App that get the content from a rss feed.
When i click on a TableViewCell I pass a NSDictionary object with the title, link, etc to the next ViewController. In the ViewController I define NSDictionary *item; and I can verify that the values are passed correctly by setting the title of the viewcontroller like this: self.title = [item objectForKey:#"link"]; the title shows the link im trying to open in my UIWebView.
Here is my ViewController's implementation
//
// NewsDetailViewController.m
// NewsApp2
//
// Created by Marco Soria on 12/27/10.
// Copyright 2010 __MyCompanyName__. All rights reserved.
//
#import "NewsDetailViewController.h"
#implementation NewsDetailViewController
#synthesize item, itemTitle, itemDate, itemSummary;
-(id)initWithItem:(NSDictionary *)theItem{
if(self = [super initWithNibName:#"NewsDetail" bundle:[NSBundle mainBundle]]){
self.item = theItem;
self.title = [item objectForKey:#"link"];
}
return self;
}
// 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 {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization.
}
return self;
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
NSString *urlAddress = [self.item objectForKey:#"link"];
NSURL *baseURL = [[NSURL URLWithString: urlAddress] retain];
NSURLRequest *request = [NSURLRequest requestWithURL:baseURL];
[self.itemSummary loadHTMLString:urlAddress baseURL:nil];
[self.itemSummary loadRequest:request];
[baseURL release];
}
/*
// 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 {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
#end
Now, when I assign the address like this #"http://somesite.com" the UIWebView loads just fine but when i do this: NSString *urlAddress = [self.item objectForKey:#"link"]; it never loads. As I mentioned i checked that the value of [self.item objectForKey:#"link"]; is a valid url since its displaying it in the title of the navigationbar.
if I do this: [self.itemSummary loadHTMLString:urlAddress baseURL:nil];
the UIWebView displays the url, another way of verifying that urlAddress has the correct url.
What am I doing wrong?
Where do you assign self.title with [item objectForKey:#"link"]?
Have you added item as a property of your view controller in your .h file? If you haven't then in your viewDidLoad method you posted above, you would not have access to self.item.
In your .h file:
#interface MyViewController : UIViewController {
NSDictionary *item;
}
#property (nonatomic, readwrite, retain) NSDictionary *item;
In your .m file (adjust this to suit your init method):
-(id)initWithItem:(NSDictionary *)item {
if (self = [super initWithNibName: nil bundle: nil]) {
self.item = item;
}
return self;
}
After you do that you will have global access in your view controller's methods to the item property via self.item.
It's solved, i did
NSURL *baseURL = [[NSURL URLWithString: [urlAddress stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]] retain];
and works now, apparently I was sending some spaces after the url and that's why it wasn't a valid url even though it apeared valid. I NSLog and got baseUrl http://site.com/item.php?id=2458%20%0A%09%20%20%20%20%20%20%20%20%09%20%20%20%20%09%09%09%09
My application is crashing, I think, in RootController.m and I don't know why. It occurs when I am in any view controller and I push the back button. It briefly returns to RootController and then it crashes. There is no messages on the console. I don't think it is the ViewController as I have tried more than one.
Here is the code.
#import "confirmViewController.h"
#implementation confirmViewController
#synthesize lblStatus;
#synthesize lblCardType;
#synthesize lblCardNumber;
#synthesize lblExpires;
#synthesize lblAmount;
#synthesize lblApproval;
#synthesize strConfirmation;
#synthesize strCardNumber;
#synthesize strExpires;
#synthesize strAmount;
#synthesize strApproval;
/*
// 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 {
[super viewDidLoad];
//prepare confirmation, all that is needed is the first string
NSArray *strings = [strConfirmation componentsSeparatedByString: #","];
NSString *strPreParsed = [strings objectAtIndex:0];
//break out yes/no so we can set status
//NSString *strYesNO = [strPreParsed substringToIndex:2];
NSString *strYesOrNo = [strPreParsed substringWithRange: NSMakeRange(1, 1)];
//save approval for later
strApproval = strYesOrNo;
//debug
NSLog(#"strNo= %#",strYesOrNo);
NSLog(#"strPreParsed= %#", strPreParsed);
if([strYesOrNo compare:#"Y"] == NSOrderedSame)
{
lblStatus.text = #"Approved";
lblStatus.textColor = [UIColor greenColor];
}
if([strYesOrNo compare:#"N"] == NSOrderedSame)
{
lblStatus.text = #"Declined";
lblStatus.textColor = [UIColor redColor];
}
if([strYesOrNo compare:#"U"] == NSOrderedSame)
{
lblStatus.text = #"Try Again";
lblStatus.textColor = [UIColor redColor];
}
//set card type
if([lblCardNumber.text compare:#"4"] == NSOrderedSame)
{
lblCardType.text = #"Visa";
}
if([lblCardNumber.text compare:#"5"] == NSOrderedSame)
{
lblCardType.text = #"Master";
}
if([lblCardNumber.text compare:#"6"] == NSOrderedSame)
{
lblCardType.text = #"Discover";
}
//set cardnumber
lblCardNumber.text = strCardNumber;
//set expires
lblExpires.text = strExpires;
//set amount
lblAmount.text = strAmount;
//set approval string
lblApproval.text = strPreParsed;
}
/*
// 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;
//show signature
sigCaptureViewController *yetAnotherViewController = [[sigCaptureViewController alloc] initWithNibName:#"sigCaptureView" bundle:nil];
[self.navigationController pushViewController:yetAnotherViewController animated:YES];
[yetAnotherViewController release];
}
- (void)dealloc {
[super dealloc];
[lblCardType dealloc];
[lblCardNumber dealloc];
[lblExpires dealloc];
[lblAmount dealloc];
[lblApproval dealloc];
[lblStatus dealloc];
[strConfirmation dealloc];
[strCardNumber dealloc];
[strExpires dealloc];
[strAmount dealloc];
[strApproval dealloc];
}
#end
You are most likely releasing something twice in your SalesViewController, it's crashing when that object's dealloc is getting called and doing the 2nd release.
You didn't include that contorller's code, either look for it yourself or paste it here and I'll help you spot it :)
Here's a scenario you should look for:
// somewhere within your sales controller
- (void)someWhere {
NSArray *arr = [NSArray array];
self.myArray = arr;
[arr release]; // notice how arr wasn't initialized with an init
// so no release is required
// but since your myArray is a #property(retain) it won't crash here
// because the property did a retain
}
- (void)dealloc {
[myArray relase]; // this does the 2nd release and BOOM
}
EDIT after your target view controller was pasted:
It might be because you forgot to set one of the properties you're releasing in the dealloc. Try setting a breakpoints in your dealloc and see if one of the properties is actually null before releasing it, if so, that's why it crashes.
EDIT #2, are you sure you want to be calling [lblSometing dealloc] instead of [lblSomething release]?