Adapter and ShoppingList class for displaying shopping lists

Listify/app/src/main/java/com/example/listify/MainActivity.java

@@ -82,6 +82,7 @@ public class MainActivity extends AppCompatActivity {
         NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
         NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
         NavigationUI.setupWithNavController(navigationView, navController);
+        
         // Handle search button click
         ImageButton searchButton = (ImageButton) findViewById(R.id.searchButton);
         searchButton.setOnClickListener(new View.OnClickListener() {

Listify/app/src/main/java/com/example/listify/adapter/DisplayShoppingListsAdapter.java

@@ -0,0 +1,56 @@
+package com.example.listify.adapter;
+
+import android.app.Activity;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+import com.example.listify.R;
+import com.example.listify.model.ShoppingList;
+
+import java.util.ArrayList;
+
+public class DisplayShoppingListsAdapter extends BaseAdapter {
+    private Activity activity;
+    private ArrayList<ShoppingList> lists;
+    private LayoutInflater inflater;
+
+    public DisplayShoppingListsAdapter(Activity activity, ArrayList<ShoppingList> lists){
+        this.activity = activity;
+        this.lists = lists;
+    }
+
+    @Override
+    public int getCount() {
+        return lists.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return lists.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        if (inflater == null) {
+            inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        }
+        if (convertView == null) {
+            convertView = inflater.inflate(R.layout.search_list_item, null);
+        }
+
+        ShoppingList curList = lists.get(position);
+
+        TextView tvListName = (TextView) convertView.findViewById(R.id.shopping_list_name);
+        tvListName.setText(curList.getName());
+
+        return convertView;
+    }
+}

Listify/app/src/main/java/com/example/listify/model/ShoppingList.java

@@ -0,0 +1,74 @@
+package com.example.listify.model;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+public class ShoppingList extends ArrayList<Product> {
+    private ArrayList<Product> list;
+    private String name;
+
+    public ShoppingList(String name) {
+        list = new ArrayList<Product>();
+        this.name = name;
+    }
+
+    public Product get(int position) {
+        return this.list.get(position);
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public int size() {
+        return list.size();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return list.isEmpty();
+    }
+
+    @Override
+    public boolean contains(@Nullable Object o) {
+        return list.contains(o);
+    }
+
+    @Override
+    public int indexOf(@Nullable Object o) {
+        return list.indexOf(o);
+    }
+
+    @Override
+    public boolean add(Product product) {
+        return list.add(product);
+    }
+
+    @Override
+    public Product remove(int index) {
+        return list.remove(index);
+    }
+
+    @Override
+    public void clear() {
+        list.clear();
+    }
+
+    @Override
+    public boolean remove(@Nullable Object o) {
+        return list.remove(o);
+    }
+
+    @Override
+    public boolean addAll(@NonNull Collection<? extends Product> c) {
+        return list.addAll(c);
+    }
+}

Listify/app/src/main/res/layout/display_shopping_lists_item.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent" android:layout_height="match_parent">
+    <TextView
+        android:id="@+id/shopping_list_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"/>
+</RelativeLayout>