@Override
    public void setOnItemSelectedListener(android.widget.AdapterView.OnItemSelectedListener listener) {
        this.mOnItemSelectedListener = listener;
        super.setOnItemSelectedListener(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