How to use

clone

method

in

androidx.collection.LongSparseArray

public Parcelable onSaveInstanceState() {
  SavedState savedState = new SavedState();
  savedState.checkedItemCount = checkedItemCount;
  savedState.checkStates = checkStates.clone();
  if (checkedIdStates != null) {
    savedState.checkedIdStates = checkedIdStates.clone();
  }
  return savedState;
}