Disabling vertical scrolling in UIScrollView

Question

There is an option in IB to uncheck vertical scrolling on a scrollview  but it doesnt seem to work   How can the scrollview be set to only scroll horizontally  and not vertically in the code rather than IB

User · Answer

since iOS7   first  the content size width must be equal to the width of your scrollview   second  in your initWithNibName   self automaticallyAdjustsScrollViewInsets   NO    That  s it

User · Answer

You need to pass 0 in content size to disable in which direction you want    To disable vertical scrolling   scrollView contentSize   CGSizeMake scrollView contentSize width 0     To  disable horizontal scrolling  scrollView contentSize   CGSizeMake 0 scrollView contentSize height

User · Answer

Try setting the contentSize s height to the scrollView s height  Then the vertical scroll should be disabled because there would be nothing to scroll vertically   scrollView contentSize   CGSizeMake scrollView contentSize width scrollView frame size height

User · Answer

I updated the content size to disable vertical scrolling  and the ability to scroll still remained  Then I figured out that I needed to disable vertical bounce too  to disable completly the scroll   Maybe there are people with this problem too

User · Answer

From iOS11 one can use the following property  let frameLayoutGuide  UILayoutGuide   If you set constraints for frameLayoutGuide topAnchor and frameLayoutGuide bottomAnchor to the same anchors of some subview of your scrollView then vertical scroll will be disabled and the height of the scrollView will be equal to the height of its subview

User · Answer

yes  pt2ph8 s answer is right   but if for some strange reason your contentSize should be higher than the UIScrollView  you can disable the vertical scrolling implementing the UIScrollView protocol method   - void scrollViewDidScroll  UIScrollView   aScrollView    just add this in your UIViewController   float oldY     here or better in  h interface  -  void scrollViewDidScroll  UIScrollView   aScrollView        aScrollView setContentOffset  CGPointMake aScrollView contentOffset x  oldY           or if you are sure you wanna it always on top          aScrollView setContentOffset  CGPointMake aScrollView contentOffset x  0        it s just the method called when the user scroll your UIScrollView  and doing so you force the content of it to have always the same  y

User · Answer

On iOS 11 please remember to add the following  if you re interested in creating a scrollview that sticks to the screen bounds rather than a safe area    if   available iOS 11 0             self scrollView setContentInsetAdjustmentBehavior UIScrollViewContentInsetAdjustmentNever

User · Answer

The most obvious solution is to forbid y-coordinate changes in your subclass   override var contentOffset  CGPoint     get       return super contentOffset       set       super contentOffset   CGPoint x  newValue x  y  0          This is the only suitable solution in situations when    You are not allowed or just don t want to use delegate  Your content height is larger than container height

User · Answer

Just set the y to be always on top   Need to conform with UIScrollViewDelegate  func scrollViewDidScroll scrollView  UIScrollView            scrollView contentOffset y   0 0     This will keep the Deceleration   Acceleration effect of the scrolling

User · Answer

A lot of answers include setting the contentOffset to 0  I had a case in which I wanted the view inside the scrollView to be centered  This did the job for me  public func scrollViewDidScroll   scrollView  UIScrollView        scrollView contentOffset y   -scrollView contentInset top

User · Answer

Include the following method   - void viewDidLayoutSubviews      self automaticallyAdjustsScrollViewInsets   NO      and set the content size width of the scroll view equal to the width of the scroll view

User · Answer

-  void scrollViewDidScroll  UIScrollView   aScrollView        aScrollView setContentOffset  CGPointMake aScrollView contentOffset x 0         you must have confirmed to  UIScrollViewDelegate  aScrollView delegate   self

[iphone] Disabling vertical scrolling in UIScrollView

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