UITextView not visible on UIScrollView

Question

Ok, so what I have is a UIScrollView that is constrained to all four sides of the main view, centered both vertically and horizontally, and set to have equal width and heigh

Answer 1

I have noticed some clues you might have to solve which could probably solve the issue. Since the scrollView is extend by its content's elements, you have to explicitly deal with each element in the scrollView:

1. For imageView on the top is not well constrained, you need to give it a width or aspect ratio. Fix the imageView issue might solve textview height problem, even it's not still is a good start.

2. TextView bottom anchor is equal to scrollView bottom anchor, but you have to know textView is also kind of scrollView. So it's not reasonable to constraint each other at same time. Because both of them don't have explicitly height. You can try to type some words in the textView which will at least give it height by its content, then the scrollView can detect the textView bottomAnchor. You might see something then.

3. Your scrollView's height is equal to view's height is also weird, scrollView shouldn't constraint its height at first. Because it can't be "Scroll"View anymore because it's height is constant. you should let its width equal to view, and let the height be decided by its element's height. Then it will be literally a scrollview.

Hope it helps