Payment Using a Stored Card

If you've already tokenized a customer's card, you can use the saved card token to perform a payment without prompting the user to re-enter their details.

Initiate the Payment with Stored Card

To perform a payment using a previously stored card, launch the PurchaseActivity with the required intent extras:

public void onPayWithCardBtnClick(View view) {
	...
Intent intent = new Intent(this, PurchaseActivity.class);
intent.putExtra(MyPos.INTENT_EXTRA_CART_ITEMS,      mIPCCartItems);
intent.putExtra(MyPos.INTENT_EXTRA_ORDER_ID,        
                      String.valueOf(System.currentTimeMillis()));
intent.putExtra(MyPos.INTENT_EXTRA_CARD_TOKEN,      cardToken);
startActivityForResult(intent, MyPos.REQUEST_CODE_PURCHASE);
	...
}

Important: Always ensure each customer has a unique Reference ID to maintain correct payment mapping and tokenization history.

Handle the Payment Result

Once the payment is complete, capture the result inside onActivityResult() in your calling activity:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if( resultCode == RESULT_OK  && requestCode == MyPos.REQUEST_CODE_PURCHASE){
        int status = data.getIntExtra(MyPos.INTENT_EXTRA_STATUS,             
                                              MyPos.STATUS_INTERNAL_API_ERROR);
        if( status == MyPos.STATUS_SUCCESS) {
            String tranRef = 
               data.getStringExtra(MyPos.INTENT_EXTRA_TRANSACTION_REFERENCE);
.
.
.
    }
}

Summary

Use a stored card token to streamline repeat purchases for returning users.
Always provide a unique order ID for every transaction.
Handle the result to capture the transaction reference and confirm success.