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Editorial Team
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Asked: 2026-05-24T15:37:08+00:00

I have this function for scrolling the textFields on the page up when the

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I have this function for scrolling the textFields on the page up when the keyboard pops up but it doesn’t work right for landscape mode. It still scrolls towards the top of the iphone (where the ear piece is, if that makes sense. So it looks like it’s scrolling to the side when done in landscape mode) in landscape mode rather than scrolling as it should. How would I modify this function to make it scroll correctly and only in landscape mode? I don’t need it to scroll at all in portrait mode. Thanks!

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 = 216;
static const CGFloat LANDSCAPE_KEYBOARD_HEIGHT = 162;

- (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
{
    NSLog(@"LANDSCAPE");
    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];
}
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1 Answer

  1. Editorial Team
    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 LANDSCAPE_KEYBOARD_HEIGHT = 162;

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
UIInterfaceOrientation orientation =
[[UIApplication sharedApplication] statusBarOrientation];

if (orientation == UIInterfaceOrientationLandscapeLeft || 
    orientation == UIInterfaceOrientationLandscapeRight) 
{

    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;
    }

    animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);

    CGRect viewFrame = self.view.frame;

    if (orientation == UIInterfaceOrientationLandscapeLeft) 
    {
        viewFrame.origin.x -= animatedDistance;
    }
    if (orientation == UIInterfaceOrientationLandscapeRight) 
    {
        viewFrame.origin.x += animatedDistance;
    }

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

    [self.view setFrame:viewFrame];
    [UIView commitAnimations];
}
}
// scrolls the view down if the view was scrolled up 
- (void)textFieldDidEndEditing:(UITextField *)textField
{
UIInterfaceOrientation orientation =
[[UIApplication sharedApplication] statusBarOrientation];

if (orientation == UIInterfaceOrientationLandscapeLeft || 
    orientation == UIInterfaceOrientationLandscapeRight) 
{
    CGRect viewFrame = self.view.frame;

    if (orientation == UIInterfaceOrientationLandscapeLeft) 
    {
        viewFrame.origin.x += animatedDistance;
    }
    if (orientation == UIInterfaceOrientationLandscapeRight) 
    {
        viewFrame.origin.x -= animatedDistance;
    }

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

    [self.view setFrame:viewFrame];
    [UIView commitAnimations];
}
}
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