贝宝为Android如何识别回拨中的付款项目？

Question

我正在使用PayPal Mobile Payments Library来实现使用Adobe AIR的PayPal for Android。

当我为用户创建一些PayPalPayment对象来添加要购买的物品时，如何在回调函数中获取该物品？

我希望能够检查交易是否有效？

谢谢。

Answer 1

可以传递任何额外的自定义数据，以确定您的服务器端付款特罗PARAM：

payment.setCustomID（“一些额外的不可见的数据，你可以通过它会回来IPN回调网址你的服务器“）;

// Create a basic PayPalPayment. 
PayPalPayment payment = new PayPalPayment(); 

// Sets the currency type for this payment. 
payment.setCurrencyType(currency_type); 

// Sets the recipient for the payment. This can also be a phone number. 
payment.setRecipient(paypal_recipient); 

// Sets the amount of the payment, not including tax and shipping amounts. 
payment.setSubtotal(new BigDecimal(currency_cost)); 

// Sets the payment type. This can be PAYMENT_TYPE_GOODS, PAYMENT_TYPE_SERVICE, PAYMENT_TYPE_PERSONAL, or PAYMENT_TYPE_NONE. 
payment.setPaymentType(PayPal.PAYMENT_TYPE_GOODS); 

// Sets the Custom ID. This is any ID that you would like to have associated with the payment. 
payment.setCustomID(transaction_id); 

// Sets the Instant Payment Notification url. This url will be hit by the PayPal server upon completion of the payment. 
payment.setIpnUrl(payment_url_callback); 

// Sets the memo. This memo will be part of the notification sent by PayPal to the necessary parties. 
payment.setDescription(product_description);