onGroupItemLongClick in ExpandListView

@Overridepublic Object getChild(int groupPosition, int childPosition) {
    return arrayItemSP.get(groupPosition).get(childPosition);
}

@Overridepublic long getChildId(int groupPosition, int childPosition) {
    return childPosition;
}

@Overridepublic long getGroupId(int groupPosition) {
    return groupPosition;
}



lvSP.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
    @Override    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long packedId) {

        // NOTE: the position is NOT group position, it is the position of the TOTAL OPEN ITEM (groups + childs) until this position !!
        // NOTE: use static ExpandableListView.getPackedPositionType(long packedId) !!!        int type = ExpandableListView.getPackedPositionType(packedId);

        int groupPosition = ExpandableListView.getPackedPositionGroup(packedId);

        switch (type) {
            case ExpandableListView.PACKED_POSITION_TYPE_GROUP: {
/*  if group item clicked */                Toast.makeText(SanphamActivity.this,"Vị tri group "+groupPosition,Toast.LENGTH_SHORT).show();
                // consume this event and do NOT let Android do more process on it (expand/collapse group)                return true;
            }
            case ExpandableListView.PACKED_POSITION_TYPE_CHILD: {
/*  if child item clicked */                int childPosition = ExpandableListView.getPackedPositionChild(packedId);
                Toast.makeText(SanphamActivity.this,"Vị tri child "+childPosition,Toast.LENGTH_SHORT).show();

                // consume this event and do NOT let Android do more process on it (expand/collapse group)                return true;
            }
        }

        return false;
    }
});

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