Why Is Uiscrollview Leaving Space on Top and Does Not Scroll to the Bottom

Why is UIScrollView leaving space on top and does not scroll to the bottom

1... Why is UIScrollView leaving space on top

With Storyboard- Goto view controller > Attribute Inspector > Uncheck Adjust Scroll View Insets property

With Code- For extra space set viewController property automaticallyAdjustsScrollViewInsets to NO, by default it is YES.

self.automaticallyAdjustsScrollViewInsets = false; 
scroller.contentInset = UIEdgeInsetsZero;
scroller.scrollIndicatorInsets = UIEdgeInsetsZero;
scroller.contentOffset = CGPointMake(0.0, 0.0);

2... does not scroll to the bottom

To make it scroll try with large number in contentSize like CGSizeMake(320, 1687). If it works that means you are not setting the contentSize large enough to have all its content.

why UIScrollView is leaving space from top in ios 6 and ios 7

In Xcode 5, in storyboard select your controller > in Attribute Inspector disable Adjust Scroll View Insets
Also check if you have set any contentInset

Edit : I attached a pic

UIScrollView & AutoLayout - UIScrollView Over scrolling (showing excessive whitespace at bottom)

To adjust the height of scroll view, you need to do these two things:-

1. In the size inspector of scroll view, change the intrinsic size to "PlaceHolder".
2. Make sure you have added enough constraints that height of scroll view can be calculated. Since the contents in your scroll view are of static height, you can simply add a height constraint to your scroll view.

Extra 20px Top Inset UIScrollView Issue

Do you have your controller embedded in a navigationController? It seems that iOS is leaving 20px at the top for a status bar but your controller doesn´t have one.

Either way, in your viewDidLoad it should work if you adjust the scrollView before calling super:

   - (void)viewDidLoad {
    self.automaticallyAdjustsScrollViewInsets = NO;
    self.scrollView.contentInset = UIEdgeInsetsMake(0,0,0,0); 
    [super viewDidLoad];
    }

The reason why iOS might be automatically forcing your scrollView to have a 20px TOP contentInset is because it might be the view with index 0 in your main view. You can read further here: http://b2cloud.com.au/how-to-guides/uiviewcontroller-changes-in-ios7

By default, a UIViewController will automatically adjust the content
insets of it’s UIScrollView (including UITableViews) at view index 0,
the very back. This means if there’s a button, label, or any other
view behind your table view, you wont get this behaviour for free.

View at the bottom in a UIScrollView, with AutoLayout

Fairly easy to do with Auto-Layout only... no code required.

The key is to use a "content view" to hold the elements, and a greater-than-or-equal constraint between your "bottom" element and your "footer" view.

In this image, yellow is the main view, green is the scroll view, blue is the content view, the labels are gray and the footer view is pink.

• Start with a fresh view controller
• add a scroll view, normal constraints (I used 20 all the way around, so we can see the frame)
• add a UIView to the scrollView - this will be our "content view"
• constrain contentView Top/Bottom/Leading/Trailing all equal to 0 to the scrollView
• constrain both the Width and Height of the contentView equal to the scrollView
• add your elements - here I used 3 labels
• constrain the labels as usual... I used:
  
  
  • LabelA - Top/Leading/Trailing all at 20, vertical spacing to LabelB of 60
  • LabelB - Leading/Trailing at 20, vertical spacing to LabelC of 60
  • LabelC - Leading/Trailing at 20
• LabelC is also set to Number of Lines: 0 so it will expand with multiple lines of text
• Add a UIView as a "footer view" (I stuck a label in it)
• constrain the footerView Leading/Trailing/Bottom all at 20 (so we can see the frame)
• either set a Height constraint on footerView, or use its content to constrain its height
• add a Vertical Spacing constraint from LabelC to footerView, and set it to >= 40
• last step, change the Height constraint of contentView to Priority: 250

Now, as you expand/contract the height of LabelC, the footerView will keep at least 40-pts of vertical space. When LabelC gets big enough to "push" footerView below the bottom, scrollView will become scrollable.

Results:

UIScrollView starts out halfway down content

Did you try set automaticallyAdjustsScrollViewInsets to NO?

---

Related Topics