fixing ui

app/src/main/java/com/example/yourcashiertest/activities/CartActivity.java

@@ -5,6 +5,7 @@ import androidx.databinding.DataBindingUtil;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.recyclerview.widget.LinearLayoutManager;
 
+import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.os.Bundle;
 
@@ -22,6 +23,7 @@ public class CartActivity extends AppCompatActivity {
     private static int SUM = 0;
     public static String PRICE = "price";
 
+    @SuppressLint("SetTextI18n")
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -40,9 +42,10 @@ public class CartActivity extends AppCompatActivity {
                 for (int i = 0; i < carts.size(); i++){
                     count += carts.get(i).getPrice();
                 }
-            }
+            }else binding.btnCheckout.setEnabled(false);
             SUM = count;
             binding.tvTotalPrice.setText(Convert.changeToCurrency(SUM));
+            binding.items.setText(carts.size() + "items");
         });
 
         adapter.setCartListener(new CartAdapter.CartListener() {

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

@@ -55,7 +55,6 @@
             android:layout_height="21dp"
             android:layout_marginEnd="5dp"
             android:gravity="top"
-            tools:text="$342424"
             app:layout_constraintBottom_toBottomOf="@+id/cart"
             app:layout_constraintStart_toEndOf="@+id/cart"
             app:layout_constraintEnd_toStartOf="@+id/amount"