public void setAreHeadersSticky(boolean areHeadersSticky) {
mAreHeadersSticky = areHeadersSticky;
if (!areHeadersSticky) {
clearHeader();
} else {
updateOrClearHeader(mList.getFixedFirstVisibleItem());
}
// invalidating the list will trigger dispatchDraw()
mList.invalidate();
}
/** @param stickyHeaderTopOffset The offset of the sticky header fom the top of the view */
public void setStickyHeaderTopOffset(int stickyHeaderTopOffset) {
mStickyHeaderTopOffset = stickyHeaderTopOffset;
updateOrClearHeader(mList.getFixedFirstVisibleItem());
}