因为最近项目中需要集成paypal，所以集成了一下，发现网上的有些文章过于老旧，所以自己写一篇踩坑记，首先是去官网申请账号，到时候会分配给你一个client_id

以上准备都做好了 就新建一个项目

引入paypel的包

compile('com.paypal.sdk:paypal-android-sdk:2.15.3')

{ exclude group: 'io.card' }// 如果不想支持信用卡支付 就加上这句话

新建一个activity 配置

private static PayPalConfiguration config =

new PayPalConfiguration()

.environment(PayPalConfiguration.ENVIRONMENT_SANDBOX)

.clientId("");

这里就输入你的client_id

3.然后在oncreate中开启服务

// 开启PayPal服务

Intent intent = new Intent(this, PayPalService.class);

intent.putExtra(PayPalService.EXTRA_PAYPAL_CONFIGURATION, paypalConfig);

startService(intent);

4.买东西

public void onBuyPressed(View pressed) {

//创建支付对象，用于传过去给PayPal服务器进行收款

PayPalPayment thingToBuy = getThingToBuy(PayPalPayment.PAYMENT_INTENT_SALE);

Intent intent = new Intent(this, PaymentActivity.class);

intent.putExtra(PayPalService.EXTRA_PAYPAL_CONFIGURATION, paypalConfig);

intent.putExtra(PaymentActivity.EXTRA_PAYMENT, thingToBuy);

//这里直接调起PayPal的sdk进行付款操作

startActivityForResult(intent, 1);

}

//这里只传一个总价格或者单个产品的信息收款情况

private PayPalPayment getThingToBuy(String paymentIntent) {

return new PayPalPayment(new BigDecimal("0.01"), "USD", "sample item",

paymentIntent);

}

//这里是购买一系列产品创建购买对象

private PayPalPayment getStuffToBuy(String paymentIntent) {

PayPalItem[] items =

{

new PayPalItem("sample item #1", 2, new BigDecimal("87.50"), "USD",

"sku-12345678"),

new PayPalItem("free sample item #2", 1, new BigDecimal("0.00"),

"USD", "sku-zero-price"),

new PayPalItem("sample item #3 with a longer name", 6, new BigDecimal("37.99"),

"USD", "sku-33333")

};

BigDecimal subtotal = PayPalItem.getItemTotal(items);

BigDecimal shipping = new BigDecimal("7.21");

BigDecimal tax = new BigDecimal("4.67");

PayPalPaymentDetails paymentDetails = new PayPalPaymentDetails(shipping, subtotal, tax);

BigDecimal amount = subtotal.add(shipping).add(tax);

PayPalPayment payment = new PayPalPayment(amount, "USD", "sample item", paymentIntent);

payment.items(items).paymentDetails(paymentDetails);

//--- set other optional fields like invoice_number, custom field, and soft_descriptor

payment.custom("This is text that will be associated with the payment that the app can use.");

return payment;

}

5.接收回调

/**

* 接收支付结果的回调.

*/

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

if (requestCode == 1 && resultCode == Activity.RESULT_OK) {

PaymentConfirmation confirm =

data.getParcelableExtra(PaymentActivity.EXTRA_RESULT_CONFIRMATION);

if (confirm != null) {

try {

//这里可以把PayPal带回来的json数据传给服务器以确认你的款项是否收到或者收全

//可以直接把 confirm.toJSONObject() 这个带给服务器，

//得到服务器返回的结果，你就可以跳转成功页面或者做相应的处理了

Log.i(TAG, confirm.toJSONObject().toString(4));

// confirm.toJSONObject().toString();

Log.i(TAG, confirm.getPayment().toJSONObject().toString(4));

Log.i(TAG, confirm.toJSONObject().toString());

} catch (JSONException e) {

Log.e(TAG, "an extremely unlikely failure occurred: ", e);

}

}

} else if (resultCode == Activity.RESULT_CANCELED) {

Log.i(TAG, "The user canceled.");

} else if (resultCode == PaymentActivity.RESULT_EXTRAS_INVALID) {

Log.i(

TAG,

"An invalid Payment or PayPalConfiguration was submitted. Please see the docs.");

}

}

6.注销service

@Override

protected void onStop() {

stopService(new Intent(this, PayPalService.class));

super.onStop();

}