Text Field Hides keyboard iPhone New Updated code

#pragma mark keyboard Hides code
/*
===  This code handles the scrolling when tabbing through input fields ===
 -> Should remeber that taxtField should "delegate" to "Files Owner"
             or should select "textField.delegate=self;"

 ---prototype   .h file
//add IBOutlet UITextField *textField1,*textField2;
 -(void)releaseKeyboard;
 -(IBAction)dismissKeyboard:(id)sender;        // this method is used on the UITextField event "Did End On Exit"


 ---prototype discription   .m file
// add synthesize and dealloc of the UITextField refernce Variable.
 -(void)releaseKeyboard{      
//  textField1,2,...,n are the textField name if you put name as name then it would be
//   "[name resignFirstResponder];"
 [textFieldName1 resignFirstResponder];
 [textFieldName2 resignFirstResponder];
 ...
[textFieldName_n resignFirstResponder];
 }
 -(IBAction)dismissKeyboard:(id)sender{
 [self releaseKeyboard];
 }

*/
-(void)releaseKeyboard{
    [textFieldName1 resignFirstResponder];
    [textFieldName2 resignFirstResponder];
}
-(IBAction)dismissKeyboard:(id)sender{
    [self releaseKeyboard];
}
-(void) touchesBegan :(NSSet *) touches withEvent:(UIEvent *)event{
    [self releaseKeyboard];
    [super touchesBegan:touches withEvent:event ];
}

static const CGFloat KEYBOARD_ANIMATION_DURATION = 0.3;
static const CGFloat MINIMUM_SCROLL_FRACTION = 0.2;
static const CGFloat MAXIMUM_SCROLL_FRACTION = 0.8;
static const CGFloat PORTRAIT_KEYBOARD_HEIGHT = 215;
static const CGFloat LANDSCAPE_KEYBOARD_HEIGHT = 140;
CGFloat    animatedDistance;
- (void)textFieldDidBeginEditing:(UITextField *)textField {
    CGRect textFieldRect = [self.view.window convertRect:textField.bounds fromView:textField];
    CGRect viewRect = [self.view.window convertRect:self.view.bounds fromView:self.view];
    CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
    CGFloat numerator = midline - viewRect.origin.y - MINIMUM_SCROLL_FRACTION * viewRect.size.height;
    CGFloat denominator = (MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION) * viewRect.size.height;
    CGFloat heightFraction = numerator / denominator;
    if (heightFraction < 0.0)
    {
        heightFraction = 0.0;
    }
    else if (heightFraction > 1.0)
    {
        heightFraction = 1.0;
    }
    UIInterfaceOrientation orientation =
    [[UIApplication sharedApplication] statusBarOrientation];
    if (orientation == UIInterfaceOrientationPortrait || orientation == UIInterfaceOrientationPortraitUpsideDown){
        animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
    }
    else{
        animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);
    }
    CGRect viewFrame = self.view.frame;
    viewFrame.origin.y -= animatedDistance;
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
    [self.view setFrame:viewFrame];
    [UIView commitAnimations];
   
}
- (void)textFieldDidEndEditing:(UITextField *)textField {
    CGRect viewFrame = self.view.frame;
    viewFrame.origin.y += animatedDistance;
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];
    [self.view setFrame:viewFrame];
     [UIView commitAnimations];
}