//ShopCartFragment 
/**
 * A simple {@link Fragment} subclass.
 */
public class ShopCartFragment extends Fragment implements ICartsView,CartAllCheckLinstener {


    @BindView(R.id.xRecycler_View)
    XRecyclerView xRecyclerView;
    @BindView(R.id.Allcheck_box)
    CheckBox AllcheckBox;
    @BindView(R.id.sumprice)
    TextView sumprice;
    @BindView(R.id.buy)
    TextView buy;
    Unbinder unbinder;
    private CartsPresent cartsPresent;
    private List<CartsBean.DataBean> list;
    private CartAdapter cartAdapter;

    public ShopCartFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View inflate = inflater.inflate(R.layout.fragment_shop_cart, container, false);
        initData();
        unbinder = ButterKnife.bind(this, inflate);
        initView();
        return inflate;

    }

    private void initView() {
        list = new ArrayList<>();
        xRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        AllcheckBox.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (AllcheckBox.isChecked()) {
                    if (list != null && list.size() > 0) {
                        for (int i = 0; i < list.size(); i++) {
                            list.get(i).setSelected(true);
                            for (int i1 = 0; i1 < list.get(i).getList().size(); i1++) {
                                list.get(i).getList().get(i1).setSelected(true);
                            }
                        }
                    }
                } else {
                    if (list != null && list.size() > 0) {
                        for (int i = 0; i < list.size(); i++) {
                            list.get(i).setSelected(false);
                            for (int i1 = 0; i1 < list.get(i).getList().size(); i1++) {
                                list.get(i).getList().get(i1).setSelected(false);
                            }
                        }
                    }
                }
                cartAdapter.notifyDataSetChanged();
                totalPrice();
            }
        });
    }

    private void totalPrice() {


        double totalprice = 0;

        for (int i = 0; i < cartAdapter.getCartList().size(); i++) {
            for (int i1 = 0; i1 < cartAdapter.getCartList().get(i).getList().size(); i1++) {
                if (cartAdapter.getCartList().get(i).getList().get(i1).isSelected()) {
                    CartsBean.DataBean.ListBean listBean = cartAdapter.getCartList().get(i).getList().get(i1);
                    totalprice += listBean.getBargainPrice() * listBean.getTotalNum();
                }
            }
        }
        sumprice.setText("" + totalprice);
    }

    private void initData() {

        cartsPresent = new CartsPresent(this);
        cartsPresent.getCarts("71");
    }

    @Override
    public void success(CartsBean cartsBean) {


        if(cartsBean!=null&&cartsBean.getData()!=null){
            list = cartsBean.getData();
            xRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity(),LinearLayoutManager.VERTICAL,false));
            cartAdapter = new CartAdapter(getActivity(),list);
            xRecyclerView.setAdapter(cartAdapter);
        }else {

            Toast.makeText(getActivity(),"沒有資料",Toast.LENGTH_LONG).show();
        }
        cartAdapter.setCartAllCheckLinstener(this);

    }

    @Override
    public void notifyAllCheckboxStatus() {

        StringBuilder stringBuilder = new StringBuilder();
        if (cartAdapter != null) {
            for (int i = 0; i < cartAdapter.getCartList().size(); i++) {
                stringBuilder.append(cartAdapter.getCartList().get(i).isSelected());
                for (int i1 = 0; i1 < cartAdapter.getCartList().get(i).getList().size(); i1++) {
                    stringBuilder.append(cartAdapter.getCartList().get(i).getList().get(i1).isSelected());
                }
            }
        }
        if (stringBuilder.toString().contains("false")) {
            AllcheckBox.setChecked(false);
        } else {
            AllcheckBox.setChecked(true);
        }
        totalPrice();
    }

    @Override
    public void Error(String msg) {

    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        unbinder.unbind();
    }


}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".fragment.ShopCartFragment">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="購物車"
        android:textSize="25sp"
        android:gravity="center"
        android:textColor="@color/colorPrimary"
        />

    <com.jcodecraeer.xrecyclerview.XRecyclerView
        android:id="@+id/xRecycler_View"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:layout_weight="1"
        ></com.jcodecraeer.xrecyclerview.XRecyclerView>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center_vertical"
        android:padding="10dp"
        >

        <CheckBox
            android:id="@+id/Allcheck_box"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <TextView
            android:textStyle="bold"
            android:textColor="@color/colorPrimary"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20sp"
            android:paddingLeft="10dp"
            android:text="全選"
            />

        <LinearLayout
            android:padding="10dp"
            android:layout_marginLeft="10dp"
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="wrap_content">

            <LinearLayout
                android:orientation="horizontal"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">

                <TextView
                    android:textSize="20dp"
                    android:text="總價:￥:"
                    android:textColor="#e53e42"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    />
                <TextView
                    android:id="@+id/sumprice"
                    android:layout_width="70dp"
                    android:layout_height="25dp"
                    android:layout_marginLeft="10dp"
                    android:textSize="20dp"
                    android:text="0"
                    />

            </LinearLayout>

        </LinearLayout>

        <TextView
            android:id="@+id/buy"
            android:text="去結算"
            android:gravity="center"
            android:textColor="#fff"
            android:background="#ff00"
            android:layout_width="70dp"
            android:layout_height="40dp"
            />

    </LinearLayout>

</LinearLayout>

public class CartAdapter extends RecyclerView.Adapter<CartViewHoder>implements CheckListener,ItemTouchHelperAdapter {
    Context context;
    List<CartsBean.DataBean> list;
    private CartAllCheckLinstener cartAllCheckLinstener;

    public CartAdapter(Context context, List<CartsBean.DataBean> list) {
        this.context = context;
        this.list = list;
    }
    public List<CartsBean.DataBean> getCartList(){
        return list;
    }

    public void setCartAllCheckLinstener(CartAllCheckLinstener cartAllCheckLinstener) {
        this.cartAllCheckLinstener = cartAllCheckLinstener;
    }

    @NonNull
    @Override
    public CartViewHoder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        CartViewHoder hoder  =new CartViewHoder(LayoutInflater.from(context).inflate(R.layout.cart_item,parent,false));
        return hoder;
    }

    @Override
    public void onBindViewHolder(@NonNull final CartViewHoder holder, int position) {

        final CartsBean.DataBean bean = list.get(position);
        holder.shopCart.setText(list.get(position).getSellerName());

        holder.shopCartSelect.setChecked(bean.isSelected());

        holder.ProductRecyclerView.setLayoutManager(new LinearLayoutManager(context));
        ProductApdater productApdater = new ProductApdater(bean.getList(),context);

        holder.ProductRecyclerView.setAdapter(productApdater);

        productApdater.setCheckListener(this);


        for (int i = 0; i < bean.getList().size(); i++) {

            if(!bean.getList().get(i).isSelected()){
                holder.shopCartSelect.setChecked(false);
                break;
            }else{
                holder.shopCartSelect.setChecked(true);
            }

        }

        holder.shopCartSelect.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(holder.shopCartSelect.isChecked()){
                    bean.setSelected(true);
                    for (int i = 0; i < bean.getList().size(); i++) {
                        bean.getList().get(i).setSelected(true);
                    }
                }else{
                    bean.setSelected(false);
                    for (int i = 0; i < bean.getList().size(); i++) {
                        bean.getList().get(i).setSelected(false);
                    }
                }
                notifyDataSetChanged();
                if(cartAllCheckLinstener!=null){
                    cartAllCheckLinstener.notifyAllCheckboxStatus();
                }
            }
        });


    }

    @Override
    public int getItemCount() {
        return list.size()==0?0:list.size();
    }

    @Override
    public void notifyParpen() {

        notifyDataSetChanged();
        if (cartAllCheckLinstener!=null){
            cartAllCheckLinstener.notifyAllCheckboxStatus();
        }
    }

    @Override
    public void onItemMove(int fromPosition, int toPosition) {
        Collections.swap(list,fromPosition,toPosition);
        notifyItemMoved(fromPosition,toPosition);
    }

    @Override
    public void onItemDismiss(int position) {

        list.remove(position);
        notifyItemRemoved(position);
    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">


    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <CheckBox
            android:id="@+id/shop_Cart_select"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <TextView
            android:id="@+id/shop_cart"
            android:text="商家"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>


    <LinearLayout
        android:layout_marginTop="30dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        >
        <View
            android:layout_width="wrap_content"
            android:layout_height="1dp"></View>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/Product_Recycler_View"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"></android.support.v7.widget.RecyclerView>


    </LinearLayout>

</LinearLayout>

class ProductApdater extends RecyclerView.Adapter<ProductViewHoder> {
    List<CartsBean.DataBean.ListBean> list;
    Context contex;
    private CheckListener checkListener;
    private CartAllCheckLinstener cartAllCheckLinstener;

    public ProductApdater(List<CartsBean.DataBean.ListBean> list, Context contex) {
        this.list = list;
        this.contex = contex;
    }

    public void setCheckListener(CheckListener checkListener) {
        this.checkListener = checkListener;
    }

    public void setCartAllCheckLinstener(CartAllCheckLinstener cartAllCheckLinstener) {
        this.cartAllCheckLinstener = cartAllCheckLinstener;
    }


    @NonNull
    @Override
    public ProductViewHoder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

        ProductViewHoder hoder = new ProductViewHoder(LayoutInflater.from(contex).inflate(R.layout.product_item, parent, false));
        return hoder;
    }

    @Override
    public void onBindViewHolder(@NonNull final ProductViewHoder holder, int position) {
        final CartsBean.DataBean.ListBean bean = list.get(position);
        holder.ProcuctCheckbox.setChecked(bean.isSelected());
        holder.price.setText("優惠價:¥" + list.get(position).getBargainPrice());
        holder.tv_name.setText(list.get(position).getTitle());
        holder.productIcon.setImageURI(Uri.parse(list.get(position).getImages().split("\\|")[0]));

        String[] split = bean.getImages().split("\\|");

        if (split != null && split.length > 0) {

            Glide.with(contex).load(split[0]).into(holder.productIcon);
        } else {
            holder.productIcon.setImageResource(R.mipmap.ic_launcher);
        }
        holder.ProcuctCheckbox.setChecked(bean.isSelected());

        holder.myAddReduce.setNumEt(bean.getTotalNum());
        holder.myAddReduce.setJiaJianLinstener(new My_add_reduce.JiaJianLinstener() {
            @Override
            public void getNum(int num) {
                bean.setTotalNum(num);
                if (checkListener != null) {
                    checkListener.notifyParpen();
                }
            }
        });

        holder.ProcuctCheckbox.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (holder.ProcuctCheckbox.isChecked()) {
                    bean.setSelected(true);
                } else {
                    bean.setSelected(false);
                }
                if (checkListener != null) {
                    checkListener.notifyParpen();
                }

                //EventBus.getDefault().post(0);
            }
        });


    }

    @Override
    public int getItemCount() {
        return list.size() == 0 ? 0 : list.size();
    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    >


    <LinearLayout
        android:padding="10dp"
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <CheckBox
                android:id="@+id/ProcuctCheckbox"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                />

            <ImageView
                android:id="@+id/product_icon"
                android:src="@mipmap/ic_launcher"
                android:layout_width="80dp"
                android:layout_height="80dp" />

        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_marginLeft="10dp"
            >

            <TextView
                android:id="@+id/tv_product_name"
                android:text="商品標題"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

            <RelativeLayout
                android:layout_marginTop="10dp"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <TextView
                    android:id="@+id/price"
                    android:layout_alignParentLeft="true"
                    android:text="優惠價￥:99.99"
                    android:textSize="15sp"
                    android:textColor="#ff0000"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content" />

                <com.bwie.my_demo3.mvp.view.My_add_reduce
                    android:id="@+id/jiajianqi"
                    android:layout_alignParentRight="true"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"></com.bwie.my_demo3.mvp.view.My_add_reduce>

            </RelativeLayout>

        </LinearLayout>


    </LinearLayout>

    <View
        android:layout_marginTop="10dp"
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="#999999"></View>
</LinearLayout>

public class My_add_reduce extends LinearLayout {
    private TextView jiaTv,jiantv;
    private EditText numEt;
    private int num = 1;
    public My_add_reduce(Context context) {
        this(context,null);
    }

    public My_add_reduce(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs,0);
    }

    public My_add_reduce(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context);
    }

    private void init(Context context) {
        View view = LayoutInflater.from(context).inflate(R.layout.num_layout, this, true);
        jiantv = view.findViewById( R.id.jian);
        jiaTv = view.findViewById(R.id.jia);
        numEt = view.findViewById(R.id.num);

        numEt.setText(num+"");

        jiaTv.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                num++;
                numEt.setText(num+"");
                if(jiaJianLinstener!=null){
                    jiaJianLinstener.getNum(num);
                }
            }
        });
        jiantv.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                num--;
                if(num<=0){
                    Toast.makeText(getContext(),"數量不能小於1" , Toast.LENGTH_SHORT).show();
                    num=1;
                }
                numEt.setText(num+"");
                if(jiaJianLinstener!=null){
                    jiaJianLinstener.getNum(num);
                }
            }


        });
    }
    public void setNumEt(int n){
        numEt.setText(n+"");
        num = Integer.parseInt(numEt.getText().toString());
    }
    private JiaJianLinstener jiaJianLinstener;

    public void setJiaJianLinstener(JiaJianLinstener jiaJianLinstener) {
        this.jiaJianLinstener = jiaJianLinstener;
    }

    public interface JiaJianLinstener{
        void getNum(int num);
    }

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <TextView
        android:id="@+id/jian"
        android:text="-"
        android:textSize="25dp"
        android:padding="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <View
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:background="#999999"/>

    <EditText
        android:id="@+id/num"
        android:layout_weight="1"
        android:text="1"
        android:gravity="center"
        android:background="#00000000"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <View
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:background="#999999"/>

    <TextView
        android:id="@+id/jia"
        android:text="+"
        android:textSize="25dp"
        android:padding="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>