Disable second click on NavigationDrawer

I am developing an application, which contains one menu drawer , however, I'm a multitoque problem, ie when the user selects an item, and quickly selects again, it keeps drawer aberto .

I would like that when the user selects an item, drawer will close, and ignore the second click.

The event I treat today is like this

exp_list_fragments.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
            @Override
            public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {

                if (groupPosition == 3 && childPosition > 0) {
                    switch (childPosition) {
                        case 1:
                            logoutApplication(false);
                            break;
                        case 2:
                            DialogSendEmail d = new DialogSendEmail(Activity_Main.this);
                            d.show();
                            break;
                        case 3:
                            rt.questionExitSystem();
                            break;
                    }
                } else {
                    Child_Fragments child_fragment = group_fragments.get(groupPosition).getFragments().get(childPosition);
                    controller.setActionBarTitle(child_fragment.getTitle(), child_fragment.getIcone());
                    supportInvalidateOptionsMenu();
                    getSupportFragmentManager().beginTransaction().replace(R.id.layout_drawer_content,
                            child_fragment.getFragment()).commit();
                }
                setFragmentSelection(groupPosition, childPosition);
                layout_drawer.closeDrawer(layout_drawer_drawer);
                return false;
            }
        });
    }