Checkbox.setOnCheckedChangeListener is not working for ExpandableListView

I'm trying to display expandableListView in android alertDialog everything is working fine. I'm able to check/un-check the checkbox that I'm showing in childView But I have to do some stuff when I check/un-check the checkbox, Here its not working.
When I implement checkbox check listener in adapter class it works perfect, I need it in the class from where I'm setting adapter. I searched over the internet and tried many ways, Now when I make the child click listener to false inside adapter like

itemView.setClickable(false);

The click listener in the origin class is working. But on expand/collapse the expandableListView my checkbox get unselected.

Here is what I have When I size to expand its child the child of color get un-selected

Here is my code in origin class called ProductsFragment the relevant code

ExpandableListView myList = new ExpandableListView(context);
                ExpandableListAdapter myAdapter = new ExpandableListAdapter(
                        headerList, hashMap, true);
                myList.setAdapter(myAdapter);
                myList.setGroupIndicator(null);

                builder.setView(myList);
                myList.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
                    @Override
                    public boolean onChildClick(final ExpandableListView parent, View v,
                                                final int groupPosition, final int childPosition, long id) {
                        MenuSubCategory subCategory = (MenuSubCategory) parent.getExpandableListAdapter()
                                .getChild(groupPosition, childPosition);
                        CheckBox checkBox = (CheckBox) v;
                        checkBox.toggle();
                        utils.printLog("IsChecked = " + ((CheckBox) v).isChecked());
                        if (((CheckBox) v).isChecked()) {
                            utils.printLog("SubCatListItemId = " + subCategory.getMenuSubCategoryId());
                            selectedFilters.add(subCategory.getMenuSubCategoryId());
                        } else {
                            String filterId = subCategory.getMenuSubCategoryId();
                            if (!filterId.isEmpty())
                                selectedFilters.remove(filterId);
                        }
                        return true;
                    }
                });

I did not get the difference between return true/ return false in expandableListViews child click listener. I tried both way.

Please tell me the best way to implement expandableListView with chechbox in it. In a way that will make it work checkbox check/un-check and retain the check state on expand/collapse.

All effort would be appreciated. Thanks in advance.

Additional: for the statement

I'm able to check/un-check the checkbox

that means only selection/un-selection animation happens not the event, and its the case when I do not write itemView.setClickable(false); in adapter class