Android Billing：如果 ConsumeParams 失败如何取消购买

Question

在活跃且稳定的互联网网络上，购买过程没有任何障碍，但是当在不稳定且超慢的互联网网络上（可能断开、丢失网络或其他原因）进行购买时，有时用户会等不及直接关闭应用程序或通过其他方式取消购买。

我有两种类型的数字内容可供出售，第一种是一次性购买，第二种可以多次购买。

问题出在第二种，当购买成功但消费失败时，最终的结果是一次性购买，用户无法再次购买。

我想问的是如果ConsumeParams消费失败如何取消购买？这可能吗？

    @Override
    public void onPurchasesUpdated(@NonNull BillingResult billingResult, @Nullable List<Purchase> list) {
        if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK && list != null) {
            handlePurchases(list);
        } else if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED) {
            new Handler(Looper.getMainLooper()).post(this::CANCELED);
        } else if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.USER_CANCELED) {
            new Handler(Looper.getMainLooper()).post(() -> {
                binding.PurchaseTxtMessage.setText(R.string.DPurchase_Canceled);
                CANCELED();
            });
        } else {
            new Handler(Looper.getMainLooper()).post(() -> {
                binding.PurchaseTxtMessage.setText(R.string.DPurchase_Canceled);
                CANCELED();
            });
        }
    }

    private void handlePurchases(List<Purchase>  purchases) {
        for(Purchase purchase:purchases) {
            if (SKU.equals(purchase.getProducts().get(0)) && purchase.getPurchaseState() == Purchase.PurchaseState.PURCHASED) {
                if (!verifyValidSignature(purchase.getOriginalJson(), purchase.getSignature())) {
                    new Handler(Looper.getMainLooper()).post(() -> {
                        binding.PurchaseTxtMessage.setText(R.string.DPurchase_Not_Valid);
                        CANCELED();
                    });
                    return;
                }
                if (!purchase.isAcknowledged()) {
                    AcknowledgePurchaseParams acknowledgePurchaseParams = AcknowledgePurchaseParams.newBuilder().setPurchaseToken(purchase.getPurchaseToken()).build();
                    billingClient.acknowledgePurchase(acknowledgePurchaseParams, billingResult -> {
                        if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
                            //CHECK PURCHASE TYPE
                            new Handler(Looper.getMainLooper()).post(() -> CHECK_PURCHASE_TYPE(purchase));
                        } else {
                            new Handler(Looper.getMainLooper()).post(this::CANCELED);
                        }
                    });
                } else {
                    //CHECK PURCHASE TYPE
                    new Handler(Looper.getMainLooper()).post(() -> CHECK_PURCHASE_TYPE(purchase));
                }
            } else if(SKU.equals(purchase.getProducts().get(0)) && purchase.getPurchaseState() == Purchase.PurchaseState.PENDING) {
                new Handler(Looper.getMainLooper()).post(() -> {
                    binding.PurchaseTxtMessage.setText(R.string.DPurchase_Pending);
                    CANCELED();
                });
            }  else if(SKU.equals(purchase.getProducts().get(0)) && purchase.getPurchaseState() == Purchase.PurchaseState.UNSPECIFIED_STATE) {
                new Handler(Looper.getMainLooper()).post(() -> {
                    binding.PurchaseTxtMessage.setText(R.string.DPurchase_Unknown);
                    CANCELED();
                });
            } else {
                new Handler(Looper.getMainLooper()).post(this::CANCELED);
            }
        }
    }

    private void CHECK_PURCHASE_TYPE(Purchase purchase) {
        if (purchase.getProducts().get(0).equals("sku0")) {
            ConsumeParams consumeParams = ConsumeParams.newBuilder().setPurchaseToken(purchase.getPurchaseToken()).build();
            billingClient.consumeAsync(consumeParams, (billingResult, s) -> {
                if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
                    SAVE_PREF(purchase);
                }
            });
        } else if (purchase.getProducts().get(0).equals("sku1")) {
            SAVE_PREF(purchase);
        } else if (purchase.getProducts().get(0).equals("sku2")) {
            SAVE_PREF(purchase);
        }
    }

Answer 1

不，这是不可能的。但是您可以按照

here

的建议在您的

BillingClient.queryPurchasesAsync()

方法中调用onResume()，并尝试确认/使用未处理的内容。

除了消费第二份外，您还必须确认您是一次性购买的，否则 Google 将在 3 天内退款。