Converting UITextField to UILabel through view Controllers - objective-c

Question

I'm sure there is a simple explanation for this.
I am looking to transfer the data (not store) but transfer the text the user types into a text field and display it as a UILabel in another ViewController.
I already know how to convert text entered by the user into a label on the same viewcontroller.
I guess my problem is importing.
the .h:
#interface ViewController : UIViewController {
IBOutlet UITextField *firstPerson;
IBOutlet UITextField *secondPerson;
IBOutlet UIButton *calculateButton;
NSString *firstName;
NSString *secondName;
}
#property (nonatomic, retain) IBOutlet UITextField *firstPerson;
#property (nonatomic, retain) IBOutlet UITextField *secondPerson;
#property (nonatomic, retain) NSString *firstName;
#property (nonatomic, retain) NSString *secondName;
#property (nonatomic, retain) IBOutlet UIButton *calculateButton;
-(IBAction)calculate;
#end
the .m:
-(IBAction)calculate {
//Linked to UIButton
//This is the first View Controller.
// firstName = firstPerson.text;
// secondName = secondPerson.text;
secondViewController = [[ShowStats alloc] init];
}
my secondview controller .m (ShowStats):
#import "ShowStats.h"
#import "ViewController.h"
- (void)viewDidLoad
{
firstName = firstPerson.text;
secondName = secondPerson.text;
[super viewDidLoad];
}
Many thanks!
EDIT
ViewController.h
#import <UIKit/UIKit.h>
#import "ShowStats.h"
#interface ViewController : UIViewController {
IBOutlet UITextField *firstPerson;
IBOutlet UITextField *secondPerson;
IBOutlet UIButton *calculateButton;
//NSString *firstName;
// NSString *secondName;
}
#property (nonatomic, retain) IBOutlet UITextField *firstPerson;
#property (nonatomic, retain) IBOutlet UITextField *secondPerson;
//#property (nonatomic, retain) NSString *firstName;
//#property (nonatomic, retain) NSString *secondName;
#property (nonatomic, retain) IBOutlet UIButton *calculateButton;
-(IBAction)calculate;
#end
ViewController.m
#import "ViewController.h"
#import "ShowStats.h"
#implementation ViewController
#synthesize firstPerson, secondPerson;
//#synthesize firstName, secondName;
#synthesize calculateButton;
ShowStats *secondViewController;
-(IBAction)calculate {
secondViewController = [[ShowStats alloc] init];
secondViewController.firstName = firstPerson.text;
}
ShowStats.h
#interface ShowStats : UIViewController{
IBOutlet UILabel *nameStats;
}
#property (nonatomic, retain) IBOutlet UILabel *nameStats;
#property (nonatomic, retain) NSString *firstName;
#property (nonatomic, retain) NSString *secondName;
#end
ShowStats.m
- (void)viewDidLoad
{
nameStats.text = [NSString stringWithFormat:#"%#", firstName];
//secondLabel.text = self.secondName;
[super viewDidLoad];
}

Answer 1

Make these properties in ShowStats class
#property (nonatomic, retain) NSString *firstName;
#property (nonatomic, retain) NSString *secondName;
and change this to this
-(IBAction)calculate {
secondViewController = [[ShowStats alloc] init];
secondViewController.firstName = firstPerson.text;
secondViewController.secondName = secondPerson.text;
}
then set these strings to UILablel in your viewDidLoad

Answer 2

In ShowStats.h, add the following:
#property(nonatomic, copy) NSString* firstName;
#property(nonatomic, copy) NSString* secondName;
In ShowStats.m add/update the following:
#synthesize firstName, secondName;
//...
- (id) init {
if (self = [super init]) {
self.firstName = nil;
self.secondName = nil;
//...
}
return self;
}
- (void) dealloc {
self.firstName = nil;
self.secondName = nil;
//...
[super dealloc];
}
- (void)viewDidLoad {
//or even better, do this in viewWillAppear instead
firstLabel.text = self.firstName;
secondLabel.text = self.secondName;
//...
[super viewDidLoad];
}
Finally, in ViewController.m, implement calculate like this:
-(IBAction)calculate {
//Linked to UIButton
//This is the first View Controller.
// firstName = firstPerson.text;
// secondName = secondPerson.text;
secondViewController = [[ShowStats alloc] init];
secondViewController.firstName = firstPerson.text;
secondViewController.secondName = secondPerson.text;
//display the view controller here
[secondViewController autorelease];
}

Answer 3

If it is a navigation then in your SecondViewController you can call:
ViewController *viewController = [self.navigationController.viewControllers objectAtIndex:0];
firstName = [[viewController firstPerson] text];
secondName = [[viewController secondPerson] text];
Or you could do the following for a Single View app:
AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
ViewController *viewController = [appDelegate viewController];
firstName = [[viewController firstPerson] text];
secondName = [[viewController secondPerson] text];
* EDIT *
Add two labels to your .h file (nonatomic, retain) & synthesize in .m . Initialize the labels in viewDidLoad then set them (assuming they are called label1 and label2):
[label1 setText:firstName];
[label2 setText:secondName];