Stripe国际支付简介及Android对接代码

一、了解Stripe支付

1，最近公司正在做一个国际版APP，涉及到海外支付，调研过Paypal、Skrill、BrainTree、Stripe（可参考海外移动支付方案对比），最终 选择了Stripe支付。Stripe特点如下：

收费规则简单透明，手续费就是收取订单总额的3.4 % + HK$2.35。没有月费、开户费、退款手续费，撤销付款费用手续费HK$85.00

2，Stripe支持135+种货币创建付款（目前不支持中国大陆，只支持中国香港）。

3，Stripe还支持其他付款方式，包括ACH信用转账、ACH借记转账、支付宝、Android Pay、Apple Pay、Bancontact、Bitcoin（比特币）、银行卡（Visa，Mastercard，American Express，Discover，Diners Club，JCB等）、Giropay、iDEAL、SEPA、SOFORT、微信支付等来自全球的热门支付方式。

4， Stripe的开发文档清晰简单，集成友好。提供了IOS、Android的SDK，以及对各种语言的支持。

Android代码：

1，集成SDK

dependencies {
    // ...

    // Stripe Android SDK
    implementation 'com.stripe:stripe-android:20.15.1'
}

2，代码

MyApplication代码

package com.example.demo;

import android.app.Application;
import com.stripe.android.PaymentConfiguration;

public class MyApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        PaymentConfiguration.init(
            getApplicationContext(),
            "pk_test_TYooMQauvdEDq54NiTphI7jx"
        );
    }
}

Activity代码：

package com.example.demo;

import android.content.res.ColorStateList;
import android.graphics.Color;
import android.util.Log;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import com.stripe.android.paymentsheet.PaymentSheet;
import com.stripe.android.paymentsheet.PaymentSheetResult;
import okhttp3.*;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;

public class CheckoutActivity extends AppCompatActivity {
    private static final String TAG = "CheckoutActivity";
    private static final String BACKEND_URL = "http://10.0.2.2:4242";

    private String paymentIntentClientSecret;
    private PaymentSheet paymentSheet;

    private Button payButton;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_checkout);

        // Hook up the pay button
        payButton = findViewById(R.id.pay_button);
        payButton.setOnClickListener(this::onPayClicked);
        payButton.setEnabled(false);

        paymentSheet = new PaymentSheet(this, this::onPaymentSheetResult);

        fetchPaymentIntent();
    }

    private void showAlert(String title, @Nullable String message) {
        runOnUiThread(() -> {
            AlertDialog dialog = new AlertDialog.Builder(this)
                .setTitle(title)
                .setMessage(message)
                .setPositiveButton("Ok", null)
                .create();
            dialog.show();
        });
    }

    private void showToast(String message) {
        runOnUiThread(() -> Toast.makeText(this, message, Toast.LENGTH_LONG).show());
    }

    private void fetchPaymentIntent() {
        final String shoppingCartContent = "{\"items\": [ {\"id\":\"xl-tshirt\"}]}";

        final RequestBody requestBody = RequestBody.create(
            shoppingCartContent,
            MediaType.get("application/json; charset=utf-8")
        );

        Request request = new Request.Builder()
            .url(BACKEND_URL + "/create-payment-intent")
            .post(requestBody)
            .build();

        new OkHttpClient()
            .newCall(request)
            .enqueue(new Callback() {
                @Override
                public void onFailure(@NonNull Call call, @NonNull IOException e) {
                    showAlert("Failed to load data", "Error: " + e.toString());
                }

                @Override
                public void onResponse(
                    @NonNull Call call,
                    @NonNull Response response
                ) throws IOException {
                    if (!response.isSuccessful()) {
                        showAlert(
                        "Failed to load page",
                        "Error: " + response.toString()
                        );
                    } else {
                        final JSONObject responseJson = parseResponse(response.body());
                        paymentIntentClientSecret = responseJson.optString("clientSecret");
                        runOnUiThread(() -> payButton.setEnabled(true));
                        Log.i(TAG, "Retrieved PaymentIntent");
                    }
                }
            });
    }

    private JSONObject parseResponse(ResponseBody responseBody) {
        if (responseBody != null) {
            try {
                return new JSONObject(responseBody.string());
            } catch (IOException | JSONException e) {
                Log.e(TAG, "Error parsing response", e);
            }
        }

        return new JSONObject();
    }

    private void onPayClicked(View view) {
        PaymentSheet.Configuration configuration = new PaymentSheet.Configuration("Example, Inc.");

        // Present Payment Sheet
        paymentSheet.presentWithPaymentIntent(paymentIntentClientSecret, configuration);
    }

    private void onPaymentSheetResult(
        final PaymentSheetResult paymentSheetResult
    ) {
        if (paymentSheetResult instanceof PaymentSheetResult.Completed) {
            showToast("Payment complete!");
        } else if (paymentSheetResult instanceof PaymentSheetResult.Canceled) {
            Log.i(TAG, "Payment canceled!");
        } else if (paymentSheetResult instanceof PaymentSheetResult.Failed) {
            Throwable error = ((PaymentSheetResult.Failed) paymentSheetResult).getError();
            showAlert("Payment failed", error.getLocalizedMessage());
        }
    }
}

xml文件

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".CheckoutActivity"
    tools:showIn="@layout/activity_checkout">
    <Button
        android:id="@+id/pay_button"
        android:text="Pay now"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="parent"
        app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

简不简单，

看效果：