androidx.viewpager2.adapter

Kotlin |Java

Interfaces

FragmentStateAdapter.FragmentTransactionCallback.OnPostEventListener	Callback returned by `FragmentStateAdapter.FragmentTransactionCallback.onFragmentPreAdded(Fragment)`, `FragmentStateAdapter.FragmentTransactionCallback.onFragmentPreRemoved(Fragment)`, `FragmentStateAdapter.FragmentTransactionCallback.onFragmentMaxLifecyclePreUpdated(Fragment, Lifecycle.State)` called after the operation ends.
StatefulAdapter	`ViewPager2` adapters should implement this interface to be called during `View.onSaveInstanceState()` and `View.onRestoreInstanceState(Parcelable)`

Similar in behavior to FragmentStatePagerAdapter

Lifecycle within RecyclerView:

RecyclerView.ViewHolder initially an empty FrameLayout, serves as a re-usable container for a Fragment in later stages.

FragmentStateAdapter.FragmentTransactionCallback Callback interface for listening to fragment lifecycle changes that happen inside the adapter.

FragmentViewHolder RecyclerView.ViewHolder implementation for handling Fragments.