How to use

onItemRangeChanged

method

in

android.support.v7.widget.RecyclerView$AdapterDataObserver

@Test
public void notifyParentRangeChanged() {
  Parent<Object> firstChangedParent = generateParent(false, 3);
  Parent<Object> secondChangedParent = generateParent(false, 3);
  assertEquals(25, mExpandableRecyclerAdapter.getItemCount());
  verifyParentItemsMatch(mBaseParents.get(4), true, 10);
  verifyParentItemsMatch(mBaseParents.get(5), false, 14);
  mBaseParents.set(4, firstChangedParent);
  mBaseParents.set(5, secondChangedParent);
  mExpandableRecyclerAdapter.notifyParentRangeChanged(4, 2);
  verify(mDataObserver).onItemRangeChanged(10, 5, null);
  verifyParentItemsMatch(firstChangedParent, true, 10);
  verifyParentItemsMatch(secondChangedParent, false, 14);
}

@Test
public void notifyParentChanged() {
  Parent<Object> changedParent = generateParent(false, 3);
  assertEquals(25, mExpandableRecyclerAdapter.getItemCount());
  verifyParentItemsMatch(mBaseParents.get(4), true, 10);
  mBaseParents.set(4, changedParent);
  mExpandableRecyclerAdapter.notifyParentChanged(4);
  verify(mDataObserver).onItemRangeChanged(10, 4, null);
  verifyParentItemsMatch(changedParent, true, 10);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  update();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  reset();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  notifyItemRangeChanged(positionStart + getHeaderViewsCount(), itemCount);
}

@Override public void onItemRangeChanged(int positionStart, int itemCount, Object payload)
{
 super.onItemRangeChanged(positionStart, itemCount, payload);
 initIndex(adapter);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {
  super.onItemRangeChanged(positionStart, itemCount, payload);
  reset();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {
  super.onItemRangeChanged(positionStart, itemCount, payload);
  somethingChanged();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
 super.onItemRangeChanged(positionStart, itemCount);
 notifyItemRangeChanged(positionStart + getHeaderCount(), itemCount);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  notifyItemRangeChanged(positionStart + getHeadersCount(), itemCount);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  update();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  notifyItemRangeChanged(positionStart + getHeadersCount(), itemCount);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  reset();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  somethingChanged();
}

@Override public void onItemRangeChanged(int positionStart, int itemCount)
{
 super.onItemRangeChanged(positionStart, itemCount);
 initIndex(adapter);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {
  super.onItemRangeChanged(positionStart, itemCount, payload);
  somethingChanged();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount, Object payload) {
  super.onItemRangeChanged(positionStart, itemCount, payload);
  reset();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  initStickyPositionList();
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  notifyItemRangeChanged(positionStart + getHeaderCount(), itemCount);
}

@Override
public void onItemRangeChanged(int positionStart, int itemCount) {
  super.onItemRangeChanged(positionStart, itemCount);
  observer.onChanged();
}