private void scrollDown(float yOffset) {
if (ENABLE_LOG) Log.d(TAG, "scrollDown");
if (yOffset > mHeader.toolbarLayout.getHeight() * 1.5f) {
animateEnterToolbarLayout(yOffset);
} else {
if (headerAnimator != null) {
followScrollToolbarIsVisible = true;
} else {
headerYOffset = Float.MAX_VALUE;
followScrollToolbarLayout(yOffset);
}
}
}