Android: Multiple snackbars in separate Fragments (ViewPager)

Question

I have a viewpager, with a few fragments of course. Each of these fragments have CoordinatorLayout as parent.

I\'m showing a snackbar for something. The problem is,

Answer 1

You can use setUserVisibleHint(boolean isVisible) to update fragment visibility (for instance on your ViewPager onPageSelected) and then getUserVisibleHint() on your fragment to show the Snackbar only if the fragment is visible.

Lets say you have Fragments A, B & C

Fragment A is visible and so is the Snackbar If Fragment B or C try to open a Snackbar, getUserVisibleHint() will return false and they wont mess up with Fragment A Snackbar.

Obs. Be careful when doing this with FragmentStatePagerAdapter because you can get NPE keeping references to Fragments and calling setUserVisibleHint() on this references.

Edit: You don't need setUserVisibleHint() because its already called by the system.