如何使用webview将paypal集成到android应用程序

我想将paypal集成到我的应用程序中。我就快到了，直到我看到这个： Paypal不允许非美国开发者使用RESTAPI。因此，留给我的选择是经典api。这就是问题所在。我不知道如何使用它们

我计划使用NVP api。我不知道怎么做，但下面是我计划做的流程图。我需要在checkout.java上设置项目编号、说明、价格等，该网站将发送到www.domain.com/setsessions.php

不过，我不确定它是否有效。但即使可以，我想知道新的“意图”如何检测用户是否成功付款、付款失败或取消付款。

我需要帮助。这真的很令人沮丧。我已经尝试整合paypal将近两周了。我觉得很没效率

这样行吗？还是有更好的方法？ 我的要求是设置发票号、项目号、说明、价格、位置，所有这些都是应用程序所必需的。

MainActivity.java

public class PizzaMain extends Activity implements OnClickListener {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        PayPal ppObj = PayPal.initWithAppID(this.getBaseContext(), "APP-80W284485P519543T", PayPal.ENV_NONE);

        CheckoutButton launchPayPalButton = ppObj.getCheckoutButton(this, PayPal.BUTTON_152x33, CheckoutButton.TEXT_PAY);
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

        params.addRule(RelativeLayout.CENTER_HORIZONTAL);

        launchPayPalButton.setLayoutParams(params);
        launchPayPalButton.setOnClickListener(this);

        ((RelativeLayout) findViewById(R.id.mRlayout1)).addView(launchPayPalButton);
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        PayPalPayment newPayment = new PayPalPayment();
        char val[] = { '5', '0' };
        BigDecimal obj_0 = new BigDecimal(val);
        newPayment.setSubtotal(obj_0);
        newPayment.setCurrencyType("USD");
        newPayment.setRecipient("my@email.com");
        newPayment.setMerchantName("My Company");
        Intent paypalIntent = PayPal.getInstance().checkout(newPayment, this);
        this.startActivityForResult(paypalIntent, 1);
    }

    @SuppressWarnings("unused")
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (resultCode) {
            case Activity.RESULT_OK:
            // The payment succeeded
            String payKey = data.getStringExtra(PayPalActivity.EXTRA_PAY_KEY);
            // Tell the user their payment succeeded
            break;
            case Activity.RESULT_CANCELED:
            // The payment was canceled
            // Tell the user their payment was canceled
            break;
            case PayPalActivity.RESULT_FAILURE:
            // The payment failed -- we get the error from the EXTRA_ERROR_ID
            // and EXTRA_ERROR_MESSAGE
            String errorID = data.getStringExtra(PayPalActivity.EXTRA_ERROR_ID);
            String errorMessage = data.getStringExtra(PayPalActivity.EXTRA_ERROR_MESSAGE);
            // Tell the user their payment was failed.
            break;
        }
    }
}

并向您的AndroidManifest.xml文件授予以下权限

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

<activity
    android:name="com.paypal.android.MEP.PayPalActivity"
    android:configChanges="keyboardHidden|orientation"
    android:theme="@android:style/Theme.Translucent.NoTitleBar" />

并将活动添加到AndroidManifest.xml文件中

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

<activity
    android:name="com.paypal.android.MEP.PayPalActivity"
    android:configChanges="keyboardHidden|orientation"
    android:theme="@android:style/Theme.Translucent.NoTitleBar" />

---

将PayPal_MPL.jar文件作为参考库添加到您的应用程序中

您知道使用PayPal启用信用卡和借记卡选项的任何方法吗！是否已为新集成禁用此功能？