@protocol UIViewPassValueDelegate
- (void)passValue:(NSString *)value;
@end 

#import <UIKit/UIKit.h>
#import "UIViewPassValueDelegate.h"
@interface DelegateSampleViewController : UIViewController <UIViewPassValueDelegate>
{  UITextField *_value;
}
@property(nonatomic, retain) IBOutlet UITextField *value;
- (IBAction)buttonClick:(id)sender;
@end 

- (void)passValue:(NSString *)value
{  self.value.text = value;  NSLog(@"the get value is %@", value);
} 

- (IBAction)buttonClick:(id)sender
{  ValueInputView *valueView = [[ValueInputView alloc] initWithNibName:@"ValueInputView" bundle:[NSBundle mainBundle]];  valueView.delegate = self;  [self setModalTransitionStyle:UIModalTransitionStyleCoverVertical];  [self presentModalViewController:valueView animated:YES];
} 

#import <UIKit/UIKit.h>
#import "UIViewPassValueDelegate.h"  @interface ValueInputView : UIViewController {  NSObject<UIViewPassValueDelegate> * delegate;  UITextField *_value;
}
@property(nonatomic, retain)IBOutlet UITextField *value;
@property(nonatomic, retain) NSObject<UIViewPassValueDelegate> * delegate;
- (IBAction)buttonClick:(id)sender;
@end 

#import "ValueInputView.h"
@implementation ValueInputView
@synthesize delegate;
@synthesize value = _value;
- (void)dealloc {  [self.value release];  [super dealloc];
}  - (IBAction)buttonClick:(id)sender
{  [delegate passValue:self.value.text];  NSLog(@"self.value.text is%@", self.value.text);  [self dismissModalViewControllerAnimated:YES];      }
- (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;
}  @end