How to handle Fragment to not load again when coming from another fragment in Navigation Component in Android?

Question

Scenario: I have 2 fragments ProductList and ProductDetail in my nav graph. And when i click on any product it opens the ProductDetail fragment using findNavController.navigate() method.

Problem: The problem is when I go back from ProductDetail to ProductList fragment, the ProductList fragment reloads again and it also calls the api to fetch products list, which I want to avoid.

If anyone knows the reason behind it or the solution to this particular issue please let me know in comments.

Answer 1

You should cache the fetch result locally, pull from the cache either during a fetch attempt or upon failure of a fetch attempt. This is a very common pattern on mobile.