@Override
    public void setOnItemClickListener(android.widget.AdapterView.OnItemClickListener listener) {
        this.mOnItemClickListener = listener;
        super.setOnItemClickListener(this);
    }
If set to true, headers will ignore horizontal padding.

@param b if true, horizontal padding is ignored by headers
Library/src/com/tonicartos/widget/stickygridheaders/StickyGridHeadersGridView.java