public SpecFilterRecyclerAdapter(List<SpecFilter> groups) {
    super(groups);

}


@Override
public ChildViewHolder onCreateCheckChildViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_specifications, null);
    ChildViewHolder holder = new ChildViewHolder(view);
    return holder;
}

@Override
public ParentViewHolder onCreateGroupViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_spec_title, null);
    ParentViewHolder holder = new ParentViewHolder(view);
    return holder;
}

@Override
public void onBindGroupViewHolder(final ParentViewHolder holder, int flatPosition, final ExpandableGroup group) {
    holder.specTitle.setText(group.getTitle());
    holder.clear.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            clearChoices();
        }
    });



}

@Override
public void onBindCheckChildViewHolder(final ChildViewHolder holder, final int flatPosition, final CheckedExpandableGroup group, final int childIndex) {
    Dummy dummy = (Dummy) group.getItems().get(childIndex);
    holder.specName.setText(dummy.name);
    holder.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            holder.checkBox.setChecked(!holder.checkBox.isChecked());
            if (holder.checkBox.isChecked()) {
                //LogUtils.e(group.getItems().get(childIndex));

            }else {

            }
        }
    });
}

public class ParentViewHolder extends GroupViewHolder {
    public TextView specTitle;
    public TextView clear;


    public ParentViewHolder(View itemView) {
        super(itemView);
        specTitle = (TextView) itemView.findViewById(R.id.tv_spec);
        clear = (TextView) itemView.findViewById(R.id.tv_clear);

    }

}

public class ChildViewHolder extends CheckableChildViewHolder {
    public TextView specName;
    public CheckBox checkBox;

    public ChildViewHolder(View itemView) {
        super(itemView);
        specName = (TextView) itemView.findViewById(R.id.tv_spec);
        checkBox = (CheckBox) itemView.findViewById(R.id.checkbox);
        checkBox.setClickable(false);

    }

    public void setOnClickListener(View.OnClickListener onClickListener) {
        itemView.setOnClickListener(onClickListener);
    }



    @Override
    public Checkable getCheckable() {
        return checkBox;
    }


}