UITextView inside UIScrollView with AutoLayout

It seems that this question has an answer that has worked for a number of people. However, it should be noted that the documentation states:

Placing a text view inside of a scroll view. Text views handle their own scrolling. You should not embed text view objects in scroll views. If you do so, unexpected behavior can result because touch events for the two objects can be mixed up and wrongly handled.

Before trying to put a UITextView in a UIScrollView you should consider if this is really necessary. If the text view is part of a complex layout within the scroll view, then note the use of the UIView container in the accepted answer.

See also: Scroll Views Inside Scroll Views

If you noticed that the Auto Layout is still complaining about the height of the UIScrollView-

The problem here is that by default UITextView has checked the “Scrolling Enabled” in the IB.

So find that checkbox and uncheck it.

After a few days of research and getting my hands dirty with UIScrollView + UITextView + Auto Layout, I successfully got a fully working UIScrollView. I want to share my solution just in case someone might stuck on the same situation.

1. Add UIScrollView inside the main view in Storyboard
2. Add UIView inside the UIScrollView
3. Add UITextView inside the UIView (the view added in step 2)
4. Make sure "Scrolling Enabled" of UITextView is unchecked
5. Add 4 constraints (leading, trailing, top, bottom) on UIScrollView
6. Add 4 constraints (leading, trailing, top, bottom) on UIView (the view added in step 2)
7. Add "Width Equally" constraint on UIView (the view added in step 2) and the main view
8. Add 5 constraints (leading, trailing, top, bottom, height) on UITextView. After this step you shouldn't get any errors and warnings on constraints.
9. Add UITextView height constraint IBOutlet on the ViewController. @property (nonatomic, weak) IBOutlet NSLayoutConstraint *textViewHeightConstraint; and connect it in Storyboard
10. Change the UITextView height constraint programmatically. self.textViewHeightConstraint.constant = [self.textView sizeThatFits:CGSizeMake(self.textView.frame.size.width, CGFLOAT_MAX)].height;

After all of these 10 steps, you'll get fully working UIScrollView with UITextView inside and be happy.