"It isn't working" is awfully vague. Please elaborate. What isn't working? Are you getting compile-time errors or warnings? Or run-time errors? Anything in the console? Is the app crashing? If so, what does the crash log say? Etc. The more details you can provide us, the easier it will be to try to help you out.
Are you new to debugging as well? Like, what kind of things would you want to test to verify that your code is working as hoped?
NSString *string;
int count = [usrs count];
string = [NSString stringWithFormat:@"%d", count];
label.text = string;
if ([usrString length] != 0 && [passwdString length] != 0){
NSString *string;
int count = [usrs count];
string = [NSString stringWithFormat:@"%d", count];
label.text = string;
}Glad you're making progress but debugging really isn't a matter of guessing what the problem is; it's a process of determining exactly what is going wrong. I'd suggest setting a breakpoint on the line that defined and sets count. Then, use the debugger to check what values are being assigned to your various variables as you step through the code. This should help you determine if the issue lies with the variable or the label.
When members who are trying to help link you to important documents in your quest (I'm talking about balamw here), it would probably behoove you to actually read them over before posting further questions that seem to indicate that you have not taken advantage of their good advice.
self.usrString = usr.text;
self.passwdString = passwd.text;
usrs = [[NSMutableArray alloc] init];
if ([usrString length] != 0 && [passwdString length] != 0) {
NSString *string1;
int count = [usrs count];
string1 = [NSString stringWithFormat:@"%d", count];
label1.text = string1;
NSString *usrname = [NSString stringWithFormat:@"%u", usrString];
[usrs addObject:usrname];
}else if ([usrString length] == 0 && [passwdString length] == 0) {
label.text = @"You must enter a valid username and password.";
}else if ([usrString length] == 0) {
label.text = @"You must enter a valid username.";
}else if ([passwdString length] == 0) {
label.text = @"You must enter a valid password.";
}
/*for (u = 0; u < count; u++) {
<#statements#>
}*/
if ([usrString length] != 0 && [passwdString length] != 0){
NSString *string;
int count = [usrs count];
string = [NSString stringWithFormat:@"%d", count];
label.text = string;
}
}Further hint. Is the single value in the array the first one you added or the most recent one? You could tell if you used one of the various methods to view the content of your variables.
This is one really easy way to see what is in your array mentioned earlier in the thread.
//
// MyViewController.m
//
//
#import "MyViewController.h"
#import "usrAppDelegate.h";
@implementation MyViewController
@synthesize usr;
@synthesize passwd;
@synthesize usrString;
@synthesize passwdString;
@synthesize label;
@synthesize label1;
@synthesize usrs;
//@synthesize string;
- (IBAction)newUsr:(id)sender {
self.usrString = usr.text;
self.passwdString = passwd.text;
usrs = [[NSMutableArray alloc] init];
int u;
if ([usrString length] != 0 && [passwdString length] != 0) {
NSString *string1;
int count = [usrs count];
string1 = [NSString stringWithFormat:@"%d", count];
label1.text = string1;
NSString *usrname = [NSString stringWithFormat:@"%u", usrString];
[usrs addObject:usrname];
}else if ([usrString length] == 0 && [passwdString length] == 0) {
label.text = @"You must enter a valid username and password.";
}else if ([usrString length] == 0) {
label.text = @"You must enter a valid username.";
}else if ([passwdString length] == 0) {
label.text = @"You must enter a valid password.";
}
/*for (u = 0; u < count; u++) {
<#statements#>
}*/
if ([usrString length] != 0 && [passwdString length] != 0){
NSString *string;
int count = [usrs count];
string = [NSString stringWithFormat:@"%d", count];
label.text = string;
}
}
- (IBAction)existUsr:(id)sender {
self.usrString = usr.text;
self.passwdString = passwd.text;
usrs = [[NSMutableArray alloc] init];
[usrs addObject:@"F"];
int count = [usrs count];
NSString *string = [NSString stringWithFormat:@"%d", count];
label.text = string;
}
- (BOOL)textFieldShouldReturn:(UITextField *)theTextField{
if (theTextField == usr){
[usr resignFirstResponder];
}
if (theTextField == passwd) {
[passwd resignFirstResponder];
}
return YES;
}
/*
// 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 {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[usr release];
[label release];
[passwd release];
[usrString release];
[passwdString release];
[super dealloc];
}
@end