InAppBilling activity和finish()

Question

我在集成google的In-App-Billing时遇到了很多麻烦。

我有一个活动，这是应该做的应用程序中的账单。我将使用startActivity方法从我的主活动中调用此活动。

Intent i = new Intent();
i.setComponent(new ComponentName("com.mypackage.mainactivity","com.mypackage.mainactivity.InAppBillingActivity"));                
startActivity(i);

应用内计费活动的onCreate方法中调用mBillingService.requestPurchase("android.test.purchased", "10")。

 public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mHandler = new Handler();
        mInAppBillingPurchaseObserver = new InAppBillingPurchaseObserver(mHandler);
        mBillingService = new BillingService();
        mBillingService.setContext(this);

        ResponseHandler.register(mInAppBillingPurchaseObserver);
        boolean supported = mBillingService.checkBillingSupported();
        System.out.println("onCreate.isBillingSupported " + supported);
        if(supported) {
            Log.i("AJ", "Calling requestPurchase");
            mBillingService.requestPurchase("android.test.purchased", "10");
        }
    }

由于In-App-Billing对服务器进行异步调用，我应该在什么时候调用finish()返回到主活动。但我不希望活动结束，我仍然需要异步调用的结果。那么我该如何处理它呢。

在将请求发送到服务器之后，我调用了finish()。但后来我得到了这样的例外：

05-29 03:11:58.897: ERROR/ActivityThread(3549): Activity com.mypackage.mainactivity.InAppBillingActivity has leaked ServiceConnection com.mypackage.mainactivity.BillingService@45b0ad50 that was originally bound here
05-29 03:11:58.897: ERROR/ActivityThread(3549): android.app.ServiceConnectionLeaked: Activity com.mypackage.mainactivity.InAppBillingActivity has leaked ServiceConnection com.mypackage.mainactivity.BillingService@45b0ad50 that was originally bound here
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread$PackageInfo$ServiceDispatcher.(ActivityThread.java:1158)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread$PackageInfo.getServiceDispatcher(ActivityThread.java:1053)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ContextImpl.bindService(ContextImpl.java:908)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.content.ContextWrapper.bindService(ContextWrapper.java:347)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.content.ContextWrapper.bindService(ContextWrapper.java:347)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.mypackage.mainactivity.BillingService.bindToMarketBillingService(Unknown Source)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.mypackage.mainactivity.BillingService.access$000(Unknown Source)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.mypackage.mainactivity.BillingService$BillingRequest.runRequest(Unknown Source)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.mypackage.mainactivity.BillingService.checkBillingSupported(Unknown Source)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.mypackage.mainactivity.InAppBillingActivity.onCreate(Unknown Source)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2701)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2753)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread.access$2500(ActivityThread.java:129)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2107)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.os.Looper.loop(Looper.java:143)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at android.app.ActivityThread.main(ActivityThread.java:4701)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at java.lang.reflect.Method.invokeNative(Native Method)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at java.lang.reflect.Method.invoke(Method.java:521)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-29 03:11:58.897: ERROR/ActivityThread(3549):     at dalvik.system.NativeStart.main(Native Method)

它没有退出应用程序，但它停止了InAppBillingActivity。

任何帮助都是非常感谢的。

谢谢，AkasH

附言：My Old Question，仍未解决.

Answer 1

您应该使用startActivityForResult() Context.StartActivityforResult URL

这样你就可以开始你的账单，让它做它的异步回调，当它收到“成功”或“失败”时，你可以调用finish()；发送回结果。

另一个关于应用程序计费的教程是：Simple InApp Billing，这给了你第二个视角，可能会帮助你理解BillingService试图实现的目标。

编辑

对于你的‘简单InApp帐单’的错误:你在你的购买中得到一个错误，你可以在计费服务中捕捉到它返回false，否则在计费助手中你可以更新方法来停止这个错误：

 protected static void verifyPurchase(String signedData, String signature) {
            ArrayList<VerifiedPurchase> purchases = BillingSecurity.verifyPurchase(signedData, signature);
            if(purchases != null && !purchases.isEmpty()){ // Check for NPE
                    latestPurchase = purchases.get(0);

                    confirmTransaction(new String[]{latestPurchase.notificationId});
            } else {
                    Log.d(TAG, "BillingHelper.verifyPurchase error. purchases was null");
            }

            if(mCompletedHandler != null){
                    mCompletedHandler.sendEmptyMessage(0);
            } else {
                    Log.e(TAG, "verifyPurchase error. Handler not instantiated. Have you called setCompletedHandler()?");
            }
    }