How to use com.nirhart.parallaxscroll.views

protected void prepareAndLoadInfo() {
  parallaxScrollRootView.smoothScrollTo(0, 0);
  pushToStack(serviceId, url, name);
  startLoading(false);
}

public void prepareAndHandleInfo(final StreamInfo info, boolean scrollToTop) {
  if (DEBUG) Log.d(TAG, "prepareAndHandleInfo() called with: info = [" + info + "], scrollToTop = [" + scrollToTop + "]");
  setInitialData(info.getServiceId(), info.getOriginalUrl(), info.getName());
  pushToStack(serviceId, url, name);
  showLoading();
  Log.d(TAG, "prepareAndHandleInfo() called parallaxScrollRootView.getScrollY(): "
      + parallaxScrollRootView.getScrollY());
  final boolean greaterThanThreshold = parallaxScrollRootView.getScrollY() > (int)
      (getResources().getDisplayMetrics().heightPixels * .1f);
  if (scrollToTop) parallaxScrollRootView.smoothScrollTo(0, 0);
  animateView(contentRootLayoutHiding,
      false,
      greaterThanThreshold ? 250 : 0, 0, () -> {
        handleResult(info);
        showContentWithAnimation(120, 0, .01f);
      });
}

protected void parallaxScroll() {
  if (isCircular)
    circularParallax();
  else
    headerParallax();
}

private void setFilters(int top) {
  parallaxedView.setOffset((float)top / parallaxFactor);
  if (alphaFactor != DEFAULT_ALPHA_FACTOR) {
    float alpha = (top <= 0) ? 1 : (100 / ((float)top * alphaFactor));
    parallaxedView.setAlpha(alpha);
  }
  parallaxedView.animateNow();
}

private void fillParallaxedViews() {
  if (parallaxedView == null || parallaxedView.is(listView.getChildAt(0)) == false) {
    if (parallaxedView != null) {
      resetFilters();
      parallaxedView.setView(listView.getChildAt(0));
    } else {
      parallaxedView = new ListViewParallaxedItem(listView.getChildAt(0));
    }
  }
}

public ParallaxScrollView(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  init(context, attrs);
}

public ParallaxListView(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  init(context, attrs);
}

@Override
public void setOnScrollListener(OnScrollListener l) {
  helper.setOnScrollListener(l);
}

public ParallaxExpandableListView(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  init(context, attrs);
}

protected void addParallaxedHeaderView(View v) {
  addParallaxedView(v);
}

protected ParallaxListViewHelper(Context context, AttributeSet attrs, ListView listView) {
  init(context, attrs, listView);
}

protected void addParallaxedView(View v) {
  this.parallaxedView = new ListViewParallaxedItem(v);
}

  public void addParallaxedHeaderView(View v, Object data, boolean isSelectable) {
    super.addHeaderView(v, data, isSelectable);
    helper.addParallaxedHeaderView(v, data, isSelectable);
  }
}

@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
  parallaxScroll();
  if (this.listener != null)
    this.listener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}

private void resetFilters() {
  parallaxedView.setOffset(0);
  if (alphaFactor != DEFAULT_ALPHA_FACTOR)
    parallaxedView.setAlpha(1F);
  parallaxedView.animateNow();
}

public ParallaxScrollView(Context context, AttributeSet attrs) {
  super(context, attrs);
  init(context, attrs);
}

public ParallaxListView(Context context, AttributeSet attrs) {
  super(context, attrs);
  init(context, attrs);
}

@Override
public void setOnScrollListener(OnScrollListener l) {
  helper.setOnScrollListener(l);
}

public ParallaxExpandableListView(Context context, AttributeSet attrs) {
  super(context, attrs);
  init(context, attrs);
}

protected void addParallaxedHeaderView(View v, Object data, boolean isSelectable) {
  addParallaxedView(v);
}