Android 版通过 SIM 卡在应用程序内购买
Google 的应用内购买 API 中是否有可以向用户的 SIM 卡收费的功能？我希望用户只需单击按钮即可进行应用内购买，而无需输入信用卡号码。
Is there any functionality in Google's in-app purchase API that can charge a user's sim card? I would like to allow a user to make an in-app purchase with just a button click and without the hassle of entering a credit card number.
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我认为您可能误解了应用内购买（适用于 Android）的工作原理。从应用内结算页面：
因此，这意味着当用户在您的应用程序内进行应用程序内购买时，结帐过程与他们在 Android Market 中购买应用程序时的过程相同。假设他们有一张在 Android Market 注册的信用卡，它会自动收费，您的用户就可以开始使用了。如果他们没有注册信用卡，系统会在他们开始购买时提示他们添加/注册一张信用卡。
无论哪种情况，一切都由 Google 处理。
I think you may have misunderstood how In-App purchases (for Android) work. From the In-App Billing page:
So what this means is that when the user makes an In-App purchase within your application, the checkout procedure is identical to if/when they purchase an app in the Android Market. Assuming they have a credit card registered with Android Market, it gets automatically charged and your users are good to go. If they don't have a credit card registered, they're prompted to add/register one when they initiate the purchase.
In either case, it's all taken care of by Google.