Android Jetpack 导航组件太慢。 有什么问题？

Question

Today I was changing from ViewPager to Navigation Component (with Bottom Navigation View ) on my Android project. The problem is that, when using ViewPager all is fast as lightning but using Navigation Component it's very laggy (2 seconds later after you pressed the view appears and specially with RecyclerView fragments).

Is there any way to pre-load fragments and improve transitions?

Thanks in advance !

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MainActivity.java

NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupWithNavController(binding.bottomBar, navController);

Answer 1

I too had the same issue. I believe its a bug in their latest dependency.

Changing to androidx.navigation:navigation-fragment-ktx:2.3.4 and androidx.navigation:navigation-ui-ktx:2.3.4 solved my issue.

Might also work for higher versions than 2.3.4. I haven't checked yet.