Added code to CouponFragment

app/src/main/java/com/a1/nextlocation/fragments/CouponFragment.java

@@ -3,24 +3,49 @@ package com.a1.nextlocation.fragments;
 import android.os.Bundle;
 
 import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
 import com.a1.nextlocation.R;
+import com.a1.nextlocation.data.Coupon;
+import com.a1.nextlocation.recyclerview.CouponAdapter;
+import com.a1.nextlocation.recyclerview.CouponListManager;
+
+import java.util.List;
 
 public class CouponFragment extends Fragment {
 
+    private RecyclerView couponRecyclerView;
+    private RecyclerView.LayoutManager layoutManager;
+    private List<Coupon> couponList;
+    private CouponAdapter couponAdapter;
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
     }
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-                             Bundle savedInstanceState) {
-        // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_coupon, container, false);
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_coupon, container, false);
+
+        this.couponRecyclerView = view.findViewById(R.id.routeRecyclerView);
+        this.couponRecyclerView.setHasFixedSize(true);
+        this.layoutManager = new LinearLayoutManager(this.getContext());
+
+        CouponListManager.INSTANCE.setContext(this.getContext());
+        CouponListManager.INSTANCE.load();
+        this.couponList = CouponListManager.INSTANCE.getCouponList();
+
+        this.couponAdapter = new CouponAdapter(this.getContext(), this.couponList);
+
+        this.couponRecyclerView.setLayoutManager(this.layoutManager);
+        this.couponRecyclerView.setAdapter(this.couponAdapter);
+        return view;
     }
 }