Button display checkbox counter

I have a listView with checkBox. When checkBox is checked/unchecked, it will count and display the number in button delete setText. If the counter is equal to 0, then it will only display DELETE, otherwise it will display DELETE (with the counter). But the problem is the delete still setText DELETE (with the counter) although the counter is 0.

holder.ckbox.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        if (((CheckBox) v).isChecked()) {
                            int getPosition = (Integer) v.getTag();  // Here we get the position that we have set for the checkbox using setTag.
                            search.get(getPosition).setSelected(((CheckBox)v).isChecked()); // Set the value of checkbox to maintain its state.
                            checkBoxCounter ++;
                            delete.setText("DELETE"+""+"("+ checkBoxCounter +")");
                        } else
                        {
                            if(checkBoxCounter==0)
                            {
                                delete.setText("DELETE");
                            }
                            else {
                                int getPosition = (Integer) v.getTag();  // Here we get the position that we have set for the checkbox using setTag.
                                search.get(getPosition).setSelected(((CheckBox) v).isChecked()); // Set the value of checkbox to maintain its state.
                                checkBoxCounter--;
                                delete.setText("DELETE" + "" + "(" + checkBoxCounter + ")");
                            }
                        }
                    }
                });