Activity qayta yaratilganda RecyclerView'da skroll pozitsiyasini qanday ta'minlash mumkin?

RecyclerView'da skroll qilish pozitsiyasini Activityni qayta yaratishda saqlash uchun LayoutManager holatini saqlash va tiklash mumkin.

LinearLayoutManager uchun misol:

// Pozitsiyani saqlash
val layoutManager = recyclerView.layoutManager as LinearLayoutManager
val scrollPosition = layoutManager.findFirstVisibleItemPosition()

// Bundlega saqlash, masalan, onSaveInstanceState ichida
outState.putInt("scroll_position", scrollPosition)

// Pozitsiyani onCreate yoki onRestoreInstanceState ichida tiklash
val position = savedInstanceState?.getInt("scroll_position") ?: 0
recyclerView.scrollToPosition(position)

Agar yanada aniqroq tiklash kerak bo‘lsa (masalan, element ichidagi siljishni hisobga olgan holda), LayoutManagerning Parcelable holatini saqlash mumkin:

// Saqlash
val layoutState = recyclerView.layoutManager?.onSaveInstanceState()
outState.putParcelable("layout_state", layoutState)

// Tiklash
val layoutState = savedInstanceState?.getParcelable<Parcelable>("layout_state")
recyclerView.layoutManager?.onRestoreInstanceState(layoutState)

Shunday qilib, Activityni qayta yaratishda skroll qilish pozitsiyasi to‘g‘ri saqlanadi va tiklanadi.