uiscrollview can't scroll to bottom

Question

I have built an UIScrollView like this:

The main idea is Label content and Label Re has a auto fixed height according to the content size and they are contained by a view.

And there is a share button following that view.

All build correctly except that I can't scrolling the view to the bottom to see the button if the content is large so that the button is out of the main screen. Or I shall try very hard to scroll to see the button and it will scroll back when I let go. :-(

https://stackoverflow.com/a/46856187/1378447 – Warif Akhand Rishi Dec 18 '17 at 05:14 — Warif Akhand Rishi, Dec 18 '17 at 05:14

score 1 · Answer 1 · answered Sep 07 '20 at 13:12

1

After a long search, what works for me is that adding a "Bottom" Constrains to the last view to its superview.

answered Sep 07 '20 at 13:12

K-Soliman

914
7
11

score 0 · Answer 2 · answered Dec 18 '17 at 04:44

0

Bottom constraint of button is missing due to which its not resizing and scrollable. To fix this, add bottom constraint to button and keep it as greater than equal to some value. e.g. 20 (whatever bottom spacing you want)

answered Dec 18 '17 at 04:44

Sneha

34
2

there is already a `bottom space to` constraint to superview with the button – armnotstrong Dec 18 '17 at 04:50
Did you fix your issue? You can also use tableview cell to show these details, this is a workaround and will solve your problem. – Sneha Dec 18 '17 at 10:56
thanks for your reply, but I have got no luck with the bottom constraint :-( – armnotstrong Dec 18 '17 at 10:59

score 0 · Answer 3 · answered Dec 18 '17 at 12:15

What you have done is, you placed a single root view for your scrollView. In this case you need to specify enough height that would be consumed by all the subviews inside the root view. (which may be confusing )

Instead of placing all views under one single view, remove that root view, embed all views under scroll view. i.e

scroll view

    -> view 1

    -> view 2

    -> button

Constraints are as follows:

scrollView -> pin trailing, leading, top and set proper height This would set scroll view position and size

view 1 -> pin top, trailing , leading to superview and pin bottom to its bottom view (view 2). (Specify height, width if necessary)

view 2 -> pin top, leading, trailing to top view (view 1) and pin bottom to button . (Specify height, width if necessary)

button -> pin top, leading, trailing to top view (view 2) and pin bottom to scroll view. (Specify height, width if necessary)

This will set enough constraints for your scroll view to calculate content.

Let me know if this doesn’t work.

note: In your case, there is 1 view and a button. So set accordingly. — cgeek, Dec 18 '17 at 12:17

score -1 · Answer 4 · answered Dec 18 '17 at 05:27

-1

override func viewDidLoad() {
  super.viewDidLoad()
  automaticallyAdjustsScrollViewInsets = false
}

Give this a shot, if it doesn't work, I'll look closer.

answered Dec 18 '17 at 05:27

jnblanchard

1,182
12
12

uiscrollview can't scroll to bottom

4 Answers4