在应用程序购买-如何获得订阅到期日期在inapp v3 android

Question

嗨，我已经为一个使用android-inapp-billing-v3的项目实现了一年订阅的inapp计费V3。我想在我的应用程序中显示剩余的天数。我正在调用getSubscriptionTransactionDetails以获取产品的交易详细信息，但它总是返回null。这是我的代码。

  private BillingProcessor startInappCheck(){
         bp = new BillingProcessor(mContext, BASE64ENCODEDPUBLICKEY, new BillingProcessor.IBillingHandler() {
                @Override
                public void onProductPurchased(String productId, TransactionDetails details) {
                    LogUtils.e(TAG, "onProductPurchased :" +productId);
    //              showToast("onProductPurchased: " + productId);
                }
                @Override
                public void onBillingError(int errorCode, Throwable error) {
                    LogUtils.e(TAG, "onBillingError :" +errorCode);

                }
                @Override
                public void onBillingInitialized() {
  //                showToast("onBillingInitialized");
                    readyToPurchase = true;

                    try{
                        SkuDetails subs = bp.getSubscriptionListingDetails(SUBSCRIPTION_ID);

                        LogUtils.d(TAG, "Owned Subscription: " + subs.toString());
                       TransactionDetails tr = bp.getSubscriptionTransactionDetails(SUBSCRIPTION_ID);
                      LogUtils.d(TAG, "Owned Subscription: " + tr.toString());
                    }catch (Exception e) {
                        // TODO: handle exception
                    }

                }
                @Override
                public void onPurchaseHistoryRestored() {
   //                   showToast("onPurchaseHistoryRestored");
                    for(String sku : bp.listOwnedSubscriptions()){
                        LogUtils.d(TAG, "Owned Subscription: " + sku);
                    }
   //                showToast("onPurchaseHistoryRestored");
                }
            });
         return bp;
    }

我从onCreate中调用这个方法。

  @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub
     if (!bp.handleActivityResult(requestCode, resultCode, data))
            super.onActivityResult(requestCode, resultCode, data);
}

我的订阅项目按钮在fragment中实现。还有一个问题，我发现成功订阅后，onProductPurchased没有被调用，但我已经在onResume中实现了逻辑，如果bp.isSubscribed(SUBSCRIPTION_ID)返回true，则更新UI。请告诉我如何获得订阅启动日期和到期日期。

Answer 1

我用这个:

@Nullable
public Date getSubscriptionRenewingDate(String sku) {
    // Get the Purchase object:
    Purchase purchase = null;
    Purchase.PurchasesResult purchasesResult = _billingClient.queryPurchases(BillingClient.SkuType.SUBS);
    if (purchasesResult.getPurchasesList() != null) {
        for (Purchase p : purchasesResult.getPurchasesList()) {
            if (p.getSku().equals(sku) && p.getPurchaseState() == Purchase.PurchaseState.PURCHASED && p.isAutoRenewing()) {
                purchase = p;
                break;
            }
        }
    }
    // Get the SkuDetails object:
    SkuDetails skuDetails = null;
    for (SkuDetails s : _skuDetails) { // _skuDetails is an array of SkuDetails retrieved with querySkuDetailsAsync
        if (s.getSku().equals(sku)) {
            skuDetails = s;
            break;
        }
    }
    if (purchase != null && skuDetails != null) {
        Date purchaseDate = new Date(purchase.getPurchaseTime());
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(purchaseDate);
        Date now = new Date();
        while (calendar.getTime().before(now)) {
            switch (skuDetails.getSubscriptionPeriod()) {
                case "P1W": calendar.add(Calendar.HOUR, 7*24); break;
                case "P1M": calendar.add(Calendar.MONTH, 1); break;
                case "P3M": calendar.add(Calendar.MONTH, 3); break;
                case "P6M": calendar.add(Calendar.MONTH, 6); break;
                case "P1Y": calendar.add(Calendar.YEAR, 1); break;
            }
        }
        return calendar.getTime();
    }
    return null;
}

Answer 2

我想给我自己的问题的ans，这样如果有人寻找相同的可以找到解决方案。经过大量的谷歌，我没有找到我正在寻找的确切解决方案，所以我在iabv3 library项目的BillingProcessor类中创建了一个方法，该方法返回带有购买详细信息的Bundle，其中我获得购买日期。现在我能用这个找到到期日了。方法如下所示

public Bundle getPurchases(){
    if (!isInitialized())
        return null;
    try{
        return  billingService.getPurchases(Constants.GOOGLE_API_VERSION, contextPackageName, Constants.PRODUCT_TYPE_SUBSCRIPTION, null);
    }catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Answer 3

我使用这段代码来获取Billing Processor Library中的购买详细信息。

   TransactionDetails transactionDetails = bp.getSubscriptionTransactionDetails(channelModel.getAndroidProductId());
        Log.d(TAG, "initializePaymentSetup: " + transactionDetails.toString());
        Log.d(TAG, "initializePaymentSetup: " + transactionDetails.purchaseInfo.toString());
 transactionDetails.purchaseInfo.purchaseData// this will return the purchase date