UIText Field Delegate Methods for Show Hide Keyboard with Animation in iphone

This code is used for Show hide keyboard with animation in iPhone SDK. This example uses UITextField delegate methods.

Code for .h file

#import 


@interface KeyboardViewController : UIViewController {

    IBOutlet UITextField *txtValue1;
    IBOutlet UITextField *txtValue2;
    IBOutlet UITextField *txtValue3;
}

- (void)setViewMovedUp:(BOOL)movedUp;

@end

Code for .m file.

#import "KeyboardViewController.h"

@implementation KeyboardViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    UIImageView* imgLogo = [ [ UIImageView alloc] initWithImage: [ UIImage imageNamed:@"apple.png"]];
    self.navigationItem.titleView = imgLogo;
    [imgLogo release];
}

- (void)setViewMovedUp:(BOOL)movedUp
{
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.3];
    CGRect rect = self.view.frame;
    if (movedUp){       
        if(rect.origin.y == 0)
            rect.origin.y = self.view.frame.origin.y - 215;
    }
    else{       
        if(rect.origin.y < 0)
            rect.origin.y = self.view.frame.origin.y + 215;
    }   
    self.view.frame = rect;   
    [UIView commitAnimations];
}

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    [self setViewMovedUp:YES];
    return YES;
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [self setViewMovedUp:NO];
    [textField resignFirstResponder];
    return 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;
}


- (void)dealloc {
    [super dealloc];
}


@end