How Can I Maintain The Position Of Listview When User Comes Back To The Activity By Pressing Back Button?

I have a listview and How can I maintain the position of my ListView in my activity when I go to another activity (by launching another intent) and then come back (press the back b

Solution 1:

You could,

1. Use Intent.putExtra to pass on the selected index to the SecondActivity and then back to First.

2. Use SharedPreferences to store and retreive the index.

I could elaborate, if you want.

Solution 2:

intindex= mList.getFirstVisiblePosition();
Viewv= mList.getChildAt(0);
inttop= (v == null) ? 0 : (v.getTop() - mList.getPaddingTop());

top gives you visible position. Then you can save it in onSaveInstanceState()(I don't remember exact implementation)

@OverridepublicvoidonSaveInstanceState(Bundle bundle) {
     super.onSaveInstanceState(bundle);
     bundle.putInt("tag", top);
}

Then restore you position in onCreate and set it to list

mList.setSelectionFromTop(index, top);

Solution 3:

kotlin way

val index: Int = recyclerView.scrollState
 
recyclerView.scrollToPosition(index)