ADD file via upload

BillActivity.java

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+package com.example.drink_order_system;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import android.widget.Toast;
+
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.gson.Gson;
+
+import java.io.IOException;
+import java.text.ParseException;
+import java.util.ArrayList;
+
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+
+public class BillActivity extends AppCompatActivity {
+
+    private String userName;
+    private String number;
+    private String time;
+    private String shop;
+    private String cost;
+    private TextView txnumber;
+    private TextView txtime;
+    private TextView txshop;
+    private TextView txcost;
+    private ArrayList <String>st1=new ArrayList<>();
+    private ArrayList <String>st2=new ArrayList<>();
+    private RecyclerView recylerview;
+    private Bill bill1;
+
+    Bundle bundle = new Bundle();
+
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_bill);
+        bill1 = new Bill("20240707111111", "wo", 30.2f, st1, st2);
+        initData();
+
+        userName = getIntent().getStringExtra("userName");
+        number = getIntent().getStringExtra("number");
+        bundle.putString("userName", userName);
+
+        txnumber = findViewById(R.id.textView_number);
+        txtime = findViewById(R.id.textView_time);
+        txshop = findViewById(R.id.textView_shop);
+        txcost = findViewById(R.id.textView_cost);
+        txnumber.setText(number);
+
+        fetchBillInfo(number); // 在这里调用fetchBillInfo
+    }
+
+    private void initData() {
+        recylerview = findViewById(R.id.RV_food);
+        initView();
+    }
+
+    private void initView() {
+        recylerview.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
+        recylerview.setAdapter(new MyRecylerViewAdapter());
+    }
+
+    private class MyRecylerViewAdapter extends RecyclerView.Adapter<MyRecylerViewAdapter.ViewHolder> {
+        @NonNull
+        @Override
+        public MyRecylerViewAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+            View inflate = LayoutInflater.from(BillActivity.this).inflate(R.layout.food_list_item, parent, false);
+            return new ViewHolder(inflate);
+        }
+
+        @Override
+        public void onBindViewHolder(@NonNull MyRecylerViewAdapter.ViewHolder holder, int position) {
+            holder.foodname.setText(bill1.get_food().get(position));
+            holder.foodnumber.setText(bill1.get_number().get(position));
+        }
+
+        @Override
+        public int getItemCount() {
+            return bill1.get_food().size();
+        }
+
+        public class ViewHolder extends RecyclerView.ViewHolder {
+            private TextView foodname;
+            private TextView foodnumber;
+
+            public ViewHolder(@NonNull View itemView) {
+                super(itemView);
+                foodname = itemView.findViewById(R.id.Text_foodname);
+                foodnumber = itemView.findViewById(R.id.Text_foodnumber);
+            }
+        }
+    }
+
+    // 根据订单号设置订单详情
+    public void BillInfo(Bill bill) throws ParseException {
+        shop = bill.get_Sname();
+        cost = Float.toString(bill.get_Omaney());
+        time = bill.get_no();
+        String strDate = number.substring(0, 4) + "年" + number.substring(4, 6) + "月" + number.substring(6, 8) + "日  " + number.substring(8, 10) + ":" + number.substring(10, 12) + ":" + number.substring(12, 14);
+        Log.e("strDate", strDate);
+
+        runOnUiThread(() -> {
+            txshop.setText(shop);
+            txcost.setText(cost);
+            txtime.setText(strDate);
+            recylerview.getAdapter().notifyDataSetChanged(); // 通知适配器数据已更改
+        });
+    }
+
+    private void fetchBillInfo(final String no) {
+        OkHttpClient client = new OkHttpClient();
+        Request request = new Request.Builder()
+                .url("http://192.168.43.176:8080/warehouse_management_system_war_exploded/getPurchase" + "?Ono=" + no)
+                .build();
+        Log.e("BillActivity", "http://192.168.153.202:8080/warehouse_management_system_war_exploded/getPurchase" + "?Ono=" + no);
+        client.newCall(request).enqueue(new Callback() {
+            @Override
+            public void onFailure(Call call, IOException e) {
+                e.printStackTrace();
+            }
+
+            @Override
+            public void onResponse(Call call, Response response) throws IOException {
+                if (response.isSuccessful()) {
+                    String jsonData = response.body().string();
+                    Gson gson = new Gson();
+                    Log.e("username", userName);
+                    Log.w("billStr", jsonData);
+
+                    Bill bill = gson.fromJson(jsonData, Bill.class);
+                    bill1 = bill;
+                    try {
+                        BillInfo(bill);
+                    } catch (ParseException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+        });
+    }}
+