最新 只完成了商家被点击 改变商品的状态 其他逻辑看下回分解

首先做  商家被点击    当前商品被全选中

 //有一个这样的接口回调给外部访问

OnCartListChangeListener onCartListChangeListener;
public void setOnCartListChangeListener(OnCartListChangeListener onCartListChangeListener) {
    this.onCartListChangeListener = onCartListChangeListener;
}
public  interface  OnCartListChangeListener{
    void  OnGoodsClicked(int groupPosition,int childPosition);
    void OnAddSubtractIsClicked(int groupPosition,int childPosition,int number);
    void OnMerchantClick(int groupPosition);
}

 

 //判断复选框是否被选中
public boolean WhetherMerchantSelected(int groupPosition){
    List<UserBaen.DataBean.ListBean> list = data.get(groupPosition).getList();
    for (UserBaen.DataBean.ListBean listBean:list){
        if (listBean.getSelected()==0){
            return false;
        }
    }
  return true;
}

 

//如果商家被点击商品改变状态
public void OnChangeMerchantStatusCheckboxGoodsCheckboxIsSelected(int groupPosition,boolean isChecked){
    UserBaen.DataBean dataBean = data.get(groupPosition);
    List<UserBaen.DataBean.ListBean> list = dataBean.getList();
    for (int i = 0; i <list.size() ; i++) {
        list.get(i).setSelected(isChecked?1:0);
    }
}

 

 

//改变商品的状态
public void changeCurrentProdictStatus(int groupPosition, int childPosition) {

     List<UserBaen.DataBean.ListBean> list = data.get(groupPosition).getList();
     UserBaen.DataBean.ListBean listBean = list.get(childPosition);

     listBean.setSelected(listBean.getSelected() == 0 ? 1 : 0);
}

 

在子条目viewhoder中

chiViewHolder.childCb.setChecked(listBean.getSelected()==1);
chiViewHolder.childCb.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if (onCartListChangeListener!=null){
            onCartListChangeListener.OnGoodsClicked(groupPosition,childPosition);
        }
    }
});

 

 

//在主条目中设置

 boolean b = WhetherMerchantSelected(groupPosition);
        groupViewHolder.checkedGroup.setChecked(b);
groupViewHolder.checkedGroup.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
           if (onCartListChangeListener!=null){
               onCartListChangeListener.OnMerchantClick(groupPosition);
           }
    }
});

 

 

  //activity的页面   这样的一个商家的联动就好了

myAdapterExpanblelistView.setOnCartListChangeListener(new MyAdapterExpanblelistView.OnCartListChangeListener() {
    @Override
    public void OnGoodsClicked(int groupPosition, int childPosition) {
        myAdapterExpanblelistView.changeCurrentProdictStatus(groupPosition,childPosition);
        myAdapterExpanblelistView.notifyDataSetChanged();
    }

    @Override
    public void OnAddSubtractIsClicked(int groupPosition, int childPosition, int number) {

    }

    @Override
    public void OnMerchantClick(int groupPosition) {
        boolean b = myAdapterExpanblelistView.WhetherMerchantSelected(groupPosition);

        myAdapterExpanblelistView.OnChangeMerchantStatusCheckboxGoodsCheckboxIsSelected(groupPosition,!b);
        myAdapterExpanblelistView.notifyDataSetChanged();

    }
});