Statistics now shows amount of coupons

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

@@ -10,12 +10,21 @@ import androidx.recyclerview.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 import android.widget.Toast;
 
 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 StatisticFragment extends Fragment {
 
+    private List<Coupon> couponList;
+
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -25,6 +34,11 @@ public class StatisticFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View view = inflater.inflate(R.layout.fragment_statistic, container, false);
 
+        this.couponList = CouponListManager.INSTANCE.getCouponList();
+        CouponAdapter adapter = new CouponAdapter(this.getContext(), this.couponList);
+        TextView couponNumber = view.findViewById(R.id.couponAmount);
+        couponNumber.setText(String.valueOf(adapter.getItemCount()));
+
 
         ConstraintLayout constraintLayout = view.findViewById(R.id.Box4);
         constraintLayout.setOnClickListener(v -> {

app/src/main/java/com/a1/nextlocation/recyclerview/CouponAdapter.java

@@ -53,6 +53,11 @@ public class CouponAdapter extends RecyclerView.Adapter<CouponAdapter.CouponView
 
     }
 
+    public CouponAdapter(Context context, List<Coupon> coupon) {
+        this.appContext = context;
+        this.couponList = coupon;
+    }
+
     @NonNull
     @Override
     public CouponViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

app/src/main/res/layout/fragment_statistic.xml

@@ -211,6 +211,7 @@
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:id="@+id/couponAmount"
             android:text="GETAL"
             android:textColor="@color/black"
             android:textSize="20sp"