How to use

removeOnAdapterChangeListener

method

in

androidx.viewpager.widget.ViewPager

private void onDetachedFromViewPager(@NonNull ViewPager pager) {
  if (mView instanceof TabStripView)
    ((TabStripView) mView).onDetachedFromViewPager(pager);
  else if (mView instanceof TabStripViewGroup)
    ((TabStripViewGroup) mView).onDetachedFromViewPager(pager);
  pager.removeOnPageChangeListener(this);
  pager.removeOnAdapterChangeListener(this);
  final PagerAdapter adapter = pager.getAdapter();
  if (adapter != null) {
    adapter.unregisterDataSetObserver(this);
  }
}

/**
 * Unregister internal listener objects, release object references, etc.
 * This method should be called in order to avoid memory leaks.
 */
public void release() {
  cancelPendingAdjustTabMode();
  cancelPendingSetTabsFromPagerAdapter();
  cancelPendingUpdateScrollPosition();
  if (mInternalOnAdapterChangeListener != null) {
    mViewPager.removeOnAdapterChangeListener(mInternalOnAdapterChangeListener);
    mInternalOnAdapterChangeListener = null;
  }
  if (mInternalDataSetObserver != null) {
    mViewPager.getAdapter().unregisterDataSetObserver(mInternalDataSetObserver);
    mInternalDataSetObserver = null;
  }
  if (mInternalOnTabSelectedListener != null) {
    mTabLayout.removeOnTabSelectedListener(mInternalOnTabSelectedListener);
    mInternalOnTabSelectedListener = null;
  }
  if (mInternalTabLayoutOnPageChangeListener != null) {
    mViewPager.removeOnPageChangeListener(mInternalTabLayoutOnPageChangeListener);
    mInternalTabLayoutOnPageChangeListener = null;
  }
  mViewPager = null;
  mTabLayout = null;
}