RecyclerViewAdapter with header and footer

CartRecyclerViewAdapter.java

package me.uryuk.uryukandroid.ui.adapters;

import android.content.Context;
import android.graphics.Typeface;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;

import java.util.List;

import me.uryuk.uryukandroid.R;
import me.uryuk.uryukandroid.entities.Product;
import me.uryuk.uryukandroid.entities.UserInformation;
import me.uryuk.uryukandroid.preferences.SharedPreferencesManager_;
import me.uryuk.uryukandroid.ui.callbacks.CartCallbacks;
import me.uryuk.uryukandroid.ui.callbacks.ProductCallbacks;
import me.uryuk.uryukandroid.utils.FontManager;


public class CartRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private static final int TYPE_HEADER = Integer.MIN_VALUE;
    private static final int TYPE_FOOTER = Integer.MIN_VALUE + 1;

    private List<Product> productList;
    private Context context;
    private ProductCallbacks productCallbacks;
    private CartCallbacks cartCallbacks;
    private int normalLayoutId;
    private int footerLayoutId;
    private int headerLayoutId;
    private UserInformation userInformation;
    private int orderSum;
    private int percentDiscount = 0;
    private int absoluteDiscount = 0;
    public CartRecyclerViewAdapter(Context context, List<Product> productList, UserInformation userInformation, ProductCallbacks productCallbacks, CartCallbacks cartCallbacks, int orderSum, int normalLayoutId, int footerLayoutId, int headerLayoutId) {
        this.context = context;
        this.productList = productList;
        this.userInformation = userInformation;
        this.productCallbacks = productCallbacks;
        this.cartCallbacks = cartCallbacks;
        this.orderSum = orderSum;
        this.normalLayoutId = normalLayoutId;
        this.footerLayoutId = footerLayoutId;
        this.headerLayoutId = headerLayoutId;
    }

    public void setOrderSum(int orderSum) {
        this.orderSum = orderSum;
        notifyDataSetChanged();
    }

    public void setDiscount(int percentDiscount, int absoluteDiscount) {
        this.percentDiscount = percentDiscount;
        this.absoluteDiscount = absoluteDiscount;
        notifyDataSetChanged();
    }

    public void update(List<Product> productList) {
        this.productList.clear();
        this.productList.addAll(productList);
        notifyDataSetChanged();
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view;
        if (viewType == TYPE_FOOTER) {
            view = LayoutInflater.from(parent.getContext()).inflate(footerLayoutId, parent, false);
            return new FooterViewHolder(view);
        }

        if (viewType == TYPE_HEADER) {
            view = LayoutInflater.from(parent.getContext()).inflate(headerLayoutId, parent, false);
            return new HeaderViewHolder(view);
        }

        view = LayoutInflater.from(parent.getContext()).inflate(normalLayoutId, parent, false);
        return new NormalViewHolder(view);
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        try {
            if (holder instanceof NormalViewHolder) {
                NormalViewHolder normalViewHolder = (NormalViewHolder) holder;
                normalViewHolder.bindView(position - 1);
            } else if (holder instanceof FooterViewHolder) {
                FooterViewHolder vh = (FooterViewHolder) holder;
                vh.bindView(position);
            } else if (holder instanceof HeaderViewHolder) {
                HeaderViewHolder vh = (HeaderViewHolder) holder;
                vh.bindView(position);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public int getItemCount() {
        if (productList == null) {
            return 0;
        }

        if (productList.size() == 0) {
            //Return 1 here to show nothing
            return 1;
        }

        // Add extra view to show the footer and header view
        return productList.size() + 2;
    }

    @Override
    public int getItemViewType(int position) {
        if (position == 0) {
            // This is where we'll add footer.
            return TYPE_HEADER;
        }

        if (position == productList.size() + 1) {
            // This is where we'll add footer.
            return TYPE_FOOTER;
        }

        return super.getItemViewType(position) + 1;
    }

    public class NormalViewHolder extends RecyclerView.ViewHolder {

        public TextView description_textView;
        public TextView price_textView;
        public TextView weight_textView;
        public TextView title_textView;
        public TextView addToOrder_textView;
        public TextView itemsInOrder_textView;
        public TextView deleteFromOrder_textView;
        public View itemDescription_view;

        public NormalViewHolder(View itemView) {
            super(itemView);
            description_textView = (TextView) itemView.findViewById(R.id.description_textView);
            price_textView = (TextView) itemView.findViewById(R.id.price_textView);
            weight_textView = (TextView) itemView.findViewById(R.id.weight_textView);
            title_textView = (TextView) itemView.findViewById(R.id.title_textView);
            addToOrder_textView = (TextView) itemView.findViewById(R.id.addToOrder_textView);
            deleteFromOrder_textView = (TextView) itemView.findViewById(R.id.deleteFromOrder_textView);
            itemsInOrder_textView = (TextView) itemView.findViewById(R.id.itemsInOrder_textView);
            itemDescription_view = itemView.findViewById(R.id.itemDescription_view);
        }

        public void bindView(int position) {
            Product product = productList.get(position);
            title_textView.setText(product.getTitle());
            description_textView.setText(product.getShot_description());
            price_textView.setText(context.getString(R.string.price, product.getPrice()));
            weight_textView.setText(product.getWeight());
            deleteFromOrder_textView.setVisibility(View.VISIBLE);

            Integer count = SharedPreferencesManager_.getInstance_(context).getCountOfProductInOrder(product);
            itemsInOrder_textView.setText(String.valueOf(count));

            itemDescription_view.setOnClickListener(v -> {
                if (productCallbacks != null) {
                    productCallbacks.seeDetails(product);
                }
            });

            addToOrder_textView.setOnClickListener(v -> {
                if (productCallbacks != null) {
                    productCallbacks.addProductToOrder(product);
                    notifyDataSetChanged();
                }
            });

            deleteFromOrder_textView.setOnClickListener(v -> {
                if (productCallbacks != null) {
                    productCallbacks.deleteProductFromOrder(product);
                    notifyDataSetChanged();
                }
            });
        }
    }

    public class FooterViewHolder extends RecyclerView.ViewHolder {

        public TextView sum_textView;
        public TextView makeOrder_textView;
        public RadioButton courier_delivery;
        public RadioButton self_delivery;
        public RadioGroup category_radioGroup;
        public View buy_textView;
        public View confirm_imageView;
        public View couponCredentials_view;
        public View yourDiscount_view;
        public EditText coupon_editText;
        public TextView discount_textView;

        public FooterViewHolder(View itemView) {
            super(itemView);
            sum_textView = (TextView) itemView.findViewById(R.id.sum_textView);
            makeOrder_textView = (TextView) itemView.findViewById(R.id.makeOrder_textView);
            courier_delivery = (RadioButton) itemView.findViewById(R.id.courier_delivery);
            self_delivery = (RadioButton) itemView.findViewById(R.id.self_delivery);
            category_radioGroup = (RadioGroup) itemView.findViewById(R.id.category_radioGroup);
            confirm_imageView = itemView.findViewById(R.id.confirm_imageView);
            couponCredentials_view = itemView.findViewById(R.id.couponCredentials_view);
            yourDiscount_view = itemView.findViewById(R.id.yourDiscount_view);
            buy_textView = itemView.findViewById(R.id.buy_textView);
            coupon_editText = (EditText) itemView.findViewById(R.id.coupon_editText);
            discount_textView = (TextView) itemView.findViewById(R.id.discount_textView);
        }

        public void bindView(int position) {
            sum_textView.setText(context.getString(R.string.price_sum, orderSum));
            if (percentDiscount > 0 && absoluteDiscount > 0) {
                discount_textView.setText(context.getString(R.string.discount_formatted, 0, 0).replaceAll("_", "%"));
            } else {
                discount_textView.setText(context.getString(R.string.discount_formatted, percentDiscount, absoluteDiscount).replaceAll("_", "%"));
            }
            Typeface font = Typeface.createFromAsset(context.getAssets(), "fonts/" + FontManager.FONT_TTF);
            courier_delivery.setTypeface(font);
            self_delivery.setTypeface(font);

            buy_textView.setOnClickListener(v -> {
                buy_textView.setVisibility(View.GONE);
                couponCredentials_view.setVisibility(View.VISIBLE);
            });

            confirm_imageView.setOnClickListener(v -> {
                if (cartCallbacks != null) {
                    try {
                        Integer code = Integer.getInteger(coupon_editText.getText().toString());
                        cartCallbacks.useDiscount(code);
                    } catch (Exception e) {
                        cartCallbacks.cantUseDiscount();
                    }
                }
                couponCredentials_view.setVisibility(View.GONE);
                yourDiscount_view.setVisibility(View.VISIBLE);
            });

            makeOrder_textView.setOnClickListener(v -> {
                if (cartCallbacks != null) {
                    cartCallbacks.makeOrderClick();
                }
            });

            if (category_radioGroup != null) {
                category_radioGroup.setOnCheckedChangeListener((group, checkedId) -> {
                    switch (checkedId) {
                        case R.id.courier_delivery:
                            if (cartCallbacks != null) {
                                cartCallbacks.checkOrder(1);
                                courier_delivery.setTextColor(ContextCompat.getColor(context, R.color.red));
                                self_delivery.setTextColor(ContextCompat.getColor(context, R.color.white));
                            }
                            break;
                        case R.id.self_delivery:
                            if (cartCallbacks != null) {
                                cartCallbacks.checkOrder(2);
                                self_delivery.setTextColor(ContextCompat.getColor(context, R.color.red));
                                courier_delivery.setTextColor(ContextCompat.getColor(context, R.color.white));
                            }
                            break;
                    }
                });
            }
        }
    }

    public class HeaderViewHolder extends RecyclerView.ViewHolder {

        public TextView name_textView;
        public TextView phone_textView;

        public HeaderViewHolder(View itemView) {
            super(itemView);

            name_textView = (TextView) itemView.findViewById(R.id.name_textView);
            phone_textView = (TextView) itemView.findViewById(R.id.phone_textView);
        }

        public void bindView(int position) {
            name_textView.setText(userInformation.getUsername());
            phone_textView.setText(userInformation.getPhone());
        }
    }

}