How to wrap height of Android ViewPager2 to height of current item?

Question

This question is for the new ViewPager2 class.

There is a similar question for the old ViewPager, but the solution requires extending ViewPager. However, ViewPager2 is final so cannot be extended.

In my situation, I have a ViewPager2 that contains three different fragments. One of these fragments is much taller than the other two, which means when you swipe to one of the shorter fragments, there is a lot of empty space. So how do I effectively wrap the ViewPager2 to the height of the current fragment?

Answer 1

The solution is to add the following in each fragment that is part of the ViewPager2:

override fun onResume() {
   super.onResume()
   binding.root.requestLayout()
}

binding.root is from ViewBinding/DataBinding but it's is the main container of your layout, i.e. ConstraintLayout, LinearLayout, etc.