Если я нажму кнопку CHECKOUT
, появится всплывающее окно. В этом всплывающем окне у вас есть возможность прервать транзакцию. Поэтому, если вы прервете транзакцию, все значения для предметов (французский огонь, вода, бургер) снова должны быть 0, как показано на рисунке ниже. Прямо сейчас, когда я прерываю транзакцию, значения остаются такими, какими я их настраивал раньше. Вы можете мне с этим помочь?
OrderActivity. java
package com.nfc.netvision;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.app.Dialog;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.google.firebase.auth.FirebaseAuth;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Locale;
import static android.widget.Toast.*;
public class OrderActivity extends AppCompatActivity implements OrderAdapter.TotalListener {
RecyclerView recyclerView;
ArrayList<ModelOrder> orderArrayList;
TextView textView_order_price;
TextView textView_order_count;
Dialog epicDialog;
Button btnCheckout;
Button btnAbort;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_order);
recyclerView = findViewById(R.id.recyclerview_order_scroll);
textView_order_price = findViewById(R.id.textView_order_price);
textView_order_count = findViewById(R.id.textView_order_count);
btnCheckout = (Button) findViewById(R.id.btnCheckout);
orderArrayList = new ArrayList<>();
orderArrayList.add(new ModelOrder(R.drawable.coke, "Coka Cola", "Eine Cola hält dich wach und schmeckt dazu.", "3",0));
orderArrayList.add(new ModelOrder(R.drawable.fastfood, "Pommes", "Fritten für die Titten.", "5",0));
orderArrayList.add(new ModelOrder(R.drawable.water, "Wasser", "Still und sanft, so mag ich es.", "5",0));
orderArrayList.add(new ModelOrder(R.drawable.burger, "Burger", "Ach mir fällt nichts ein.", "10",0));
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
RecyclerView.LayoutManager recLiLayoutManager = layoutManager;
recyclerView.setLayoutManager(recLiLayoutManager);
OrderAdapter adapter = new OrderAdapter(this, orderArrayList, this);
recyclerView.setAdapter(adapter);
epicDialog = new Dialog(this);
btnCheckout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showWaitingPopUp();
}
});
}
private void showWaitingPopUp() {
epicDialog.setContentView(R.layout.order_popup_waiting);
epicDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
btnAbort = (Button) epicDialog.findViewById(R.id.btnAbort);
btnAbort.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
epicDialog.dismiss();
}
});
epicDialog.show();
}
@Override
public void onTotalChanged(String result) {
NumberFormat n = NumberFormat.getCurrencyInstance(Locale.GERMANY);
textView_order_price.setText( n.format(Integer.parseInt(result)));
}
@Override
public void onCountChanged(String result) {
textView_order_count.setText(result);
}
}
Адаптер заказа. java
package com.nfc.netvision;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import org.w3c.dom.Text;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Locale;
public class OrderAdapter extends RecyclerView.Adapter<OrderAdapter.ViewHolder> {
private int totalAmount;
private int totalItems;
private Context mContext;
private ArrayList<ModelOrder> nList;
private TotalListener listener;
interface TotalListener{
void onTotalChanged(String result);
void onCountChanged(String result);
}
OrderAdapter(Context context, ArrayList<ModelOrder> list, TotalListener listener) {
mContext = context;
nList = list;
this.listener = listener;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
LayoutInflater layoutInflater = LayoutInflater.from(mContext);
View view = layoutInflater.inflate(R.layout.recyclerview_order_items, parent, false);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, int position) {
final ModelOrder orderItem = nList.get(position);
ImageView image = holder.item_image;
final TextView name, place, price;
name = holder.item_name;
place = holder.item_place;
price = holder.item_price;
image.setImageResource(orderItem.getImage());
name.setText(orderItem.getName());
place.setText(orderItem.getPlace());
price.setText(orderItem.getPrice());
holder.order_item_minus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(orderItem.getCounter() > 0) {
orderItem.setCounter(orderItem.getCounter()-1);
holder.order_item_count.setText("" + orderItem.getCounter());
calculatePrice(Integer.parseInt((String) price.getText()), false);
countItems(orderItem.getCounter(), false);
}
}
});
holder.order_item_plus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(orderItem.getCounter() < 9) {
orderItem.setCounter(orderItem.getCounter() + 1);
holder.order_item_count.setText("" + orderItem.getCounter());
calculatePrice(Integer.parseInt((String) price.getText()), true);
countItems(orderItem.getCounter(), true);
}
}
});
}
@Override
public int getItemCount() {
return nList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
ImageView item_image;
TextView item_name, item_place, item_price,order_item_minus,order_item_count, order_item_plus;
public ViewHolder(@NonNull View itemView) {
super(itemView);
item_image = itemView.findViewById(R.id.order_item_image);
item_name = itemView.findViewById(R.id.order_item_name);
item_place = itemView.findViewById(R.id.order_item_place);
item_price = itemView.findViewById(R.id.order_item_price);
order_item_minus = itemView.findViewById(R.id.order_item_minus);
order_item_plus = itemView.findViewById(R.id.order_item_plus);
order_item_count = itemView.findViewById(R.id.order_item_count);
}
}
private void calculatePrice(int pPrice, boolean pUpDown) {
if(pUpDown) {
totalAmount = totalAmount + pPrice;
}
else {
totalAmount = totalAmount - pPrice;
}
listener.onTotalChanged(totalAmount+ "");
}
private void countItems(int pCounter, boolean pUpDown){
if (pUpDown){
totalItems = totalItems + 1;
}
else{
totalItems = totalItems - 1;
}
listener.onCountChanged(totalItems+ "");
}
}