CheckBox监听显示选中的条目数

holder.checkbox_item.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {    @Override    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {        int pos = holder.getLayoutPosition();        isCheckedMap.put(pos, isChecked);        int count = 0;        for (int i = 0; i < isCheckedMap.size(); i++) {            if(isCheckedMap.get(i).booleanValue()){                count++;            }        }        findSelectBox.findBox(count);    }});
//定义接口public interface FindSelectBox {    void findBox(int count);}private FindSelectBox findSelectBox;public void setFindSelectBox(FindSelectBox findSelectBox) {    this.findSelectBox = findSelectBox;}