最新发现Paypal的官方SDK已经不再维护了，所以需要把项目的支付做一下升级。
文档链接：点击这里
根据文档来看Paypal支付的集成相比以前简单了许多，下面我们讲一下集成步骤：
1：在 build.gradle 中添加以下内容
compile 'com.braintreepayments.api:braintree:2.+'2：在你的 AndroidManifest.xml 中添加
<activity android:name="com.braintreepayments.api.BraintreeBrowserSwitchActivity"android:launchMode="singleTask"><intent-filter><action android:name="android.intent.action.VIEW" /><category android:name="android.intent.category.DEFAULT" /><category android:name="android.intent.category.BROWSABLE" /><data android:scheme="${applicationId}.braintree" /></intent-filter>
</activity>3：从服务器获取Token
根据后台提供的 url 获取到Token 后台 集成链接
4：初始化
@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_paypal);
//初始化并添加监听try {mBraintreeFragment = BraintreeFragment.newInstance(this, mAuthorization);mBraintreeFragment.addListener(new ConfigurationListener() {@Overridepublic void onConfigurationFetched(Configuration configuration) {}});// 支付完成监听mBraintreeFragment.addListener(new PaymentMethodNonceCreatedListener() {@Overridepublic void onPaymentMethodNonceCreated(PaymentMethodNonce paymentMethodNonce) {// Send nonce to serverString nonce = paymentMethodNonce.getNonce();postNonceToServer(nonce);if (paymentMethodNonce instanceof PayPalAccountNonce) {PayPalAccountNonce payPalAccountNonce = (PayPalAccountNonce) paymentMethodNonce;// Access additional informationString email = payPalAccountNonce.getEmail();String firstName = payPalAccountNonce.getFirstName();String lastName = payPalAccountNonce.getLastName();String phone = payPalAccountNonce.getPhone();// See PostalAddress.java for detailsPostalAddress billingAddress = payPalAccountNonce.getBillingAddress();PostalAddress shippingAddress = payPalAccountNonce.getShippingAddress();}}});// 取消监听mBraintreeFragment.addListener(new BraintreeCancelListener() {@Overridepublic void onCancel(int requestCode) {}});// 错误监听mBraintreeFragment.addListener(new BraintreeErrorListener() {@Overridepublic void onError(Exception error) {if (error instanceof ErrorWithResponse) {ErrorWithResponse errorWithResponse = (ErrorWithResponse) error;BraintreeError cardErrors = errorWithResponse.errorFor("creditCard");if (cardErrors != null) {// There is an issue with the credit card.BraintreeError expirationMonthError = cardErrors.errorFor("expirationMonth");if (expirationMonthError != null) {// There is an issue with the expiration month.LogUtils.e("paypal",expirationMonthError.getMessage());}}}}});// mBraintreeFragment is ready to use!
} catch (InvalidArgumentException e) {// There was an issue with your authorization string.
}
}5：调起支付
yourButton.setOnClickListener(new View.OnClickListener(){@Override public void onClick (View view){setupBraintreeAndStartExpressCheckout();
}
})public void setupBraintreeAndStartExpressCheckout() {PayPalRequest request = new PayPalRequest(“价格”).currencyCode("货币符号").intent(PayPalRequest.INTENT_SALE);PayPal.requestOneTimePayment(mBraintreeFragment, request);
}
这里注意三种Intent的意思 INTENT_SALE 表示立即到账。
5：付款成功后访问服务器验证
private void postNonceToServer(String nonce) {final Map<String, String> dataMap = new HashMap<>();dataMap.put("nonce", nonce);dataMap.put("amount", price);}
验证的接口由后台给这里逻辑由后台处理，这里返回成功，说明支付并验证成功。
大家测试的时候一定要用美国地址的paypal进行测试哈。
