1. package com.example.detor;
2.  
3. import androidx.annotation.NonNull;
4. import androidx.appcompat.app.AppCompatActivity;
5.  
6. import android.content.Intent;
7. import android.os.Bundle;
8. import android.view.MenuItem;
9.  
10. import android.view.View;
11. import android.widget.Button;
12. import android.widget.TextView;
13.  
14. public class PaymentActivity extends AppCompatActivity {
15.  
16.     private TextView textViewSavedCards;
17.     private TextView textViewNoCards;
18.     private Button buttonAddCard;
19.  
20.     @Override
21.     protected void onCreate(Bundle savedInstanceState) {
22.         super.onCreate(savedInstanceState);
23.         setContentView(R.layout.activity_payment);
24.  
25.         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
26.  
27.         textViewSavedCards = findViewById(R.id.textViewSavedCards);
28.         textViewNoCards = findViewById(R.id.textViewNoCards);
29.         buttonAddCard = findViewById(R.id.buttonAddCard);
30.  
31.         buttonAddCard.setOnClickListener(new View.OnClickListener() {
32.             @Override
33.             public void onClick(View v) {
34.                 // Start the CardDetailsActivity to enter card details
35.                 Intent intent = new Intent(PaymentActivity.this, CardDetailsActivity.class);
36.                 startActivity(intent);
37.             }
38.         });
39.  
40.         // Check if there are saved cards to display
41.         boolean hasSavedCards = false; // Replace with your logic to determine if there are saved cards
42.  
43.         if (hasSavedCards) {
44.             textViewSavedCards.setVisibility(View.VISIBLE);
45.             textViewNoCards.setVisibility(View.GONE);
46.         } else {
47.             textViewSavedCards.setVisibility(View.GONE);
48.             textViewNoCards.setVisibility(View.VISIBLE);
49.         }
50.     }
51.  
52.     @Override
53.     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
54.         switch (item.getItemId()) {
55.             case android.R.id.home:
56.                 this.finish();
57.                 return true;
58.         }
59.         return super.onOptionsItemSelected(item);
60.     }
61.  
62. }