billingClient.queryPurchases(BillingClient.SkuType.SUBS).getPurchasesList() 返回 null

Question

我正在为 android 开发一个应用程序，提供计费服务。我已经添加了 "shop" 方法，因此用户可以下标。我的应用程序只有一个订阅待售。问题是，当用户打开应用程序时，我无法得知他是否有下标。直到现在，我已经来到这段代码，即使用户是 subscriptpurchasesResult.getPurchasesList() returns null:

premium = false

try{
            Purchase.PurchasesResult purchasesResult = billingClient.queryPurchases(BillingClient.SkuType.SUBS);

        for (Purchase purchase : purchasesResult.getPurchasesList()) {

            acknowledgePurchaseParams =
                    AcknowledgePurchaseParams.newBuilder()
                            .setPurchaseToken(purchase.getPurchaseToken())
                            .build();

            acknowledgePurchaseResponseListener = new AcknowledgePurchaseResponseListener() {
                @Override
                public void onAcknowledgePurchaseResponse(BillingResult billingResult) {
                    premium = true;
                }
            };

            handlePurchase(purchase);
        }}
        catch (Exception e){
            e.printStackTrace();
        }

处理购买方法：

 void handlePurchase(Purchase purchase) {
        if (purchase.getPurchaseState() == Purchase.PurchaseState.PURCHASED) {
            if (!purchase.isAcknowledged()) {
                AcknowledgePurchaseParams acknowledgePurchaseParams =
                        AcknowledgePurchaseParams.newBuilder()
                                .setPurchaseToken(purchase.getPurchaseToken())
                                .build();
                billingClient.acknowledgePurchase(acknowledgePurchaseParams, acknowledgePurchaseResponseListener);
            }
            else SplashScreenActivity.premium = true;
        }
    }

我很期待检查用户是否已订阅，所以我可以设置 premium = true。直到现在，我使用的是一个丑陋的解决方案，即再次购买产品并检查它是否 returns ITEM_ALREADY_OWNED。仍在寻找更好的解决方案。

注意：我在 alpha 测试中得到了这个结果。

注意 2：This link 可能有帮助。

注意 3：This link 向其他人展示同样的问题。

Answer 1

你应该在这里找到解决方案！

我也使用封闭的 alpha 版本对此进行了测试，以检查订阅是否有效。当订阅不再活跃时，sku 不再在购买列表中：

如果我取消 5 分钟测试订阅，则该 sku 不再出现在列表中。所以这对我来说很好

注意 skuname 是我之前传递的标识符，例如 "mytestsub.iap1.com"

我的解决方案是：

private fun setupBillingClient() {
    mBillingClient = BillingClient
            .newBuilder(context!!)
            .enablePendingPurchases() // Useful for physical stores
            .setListener(this)
            .build()


    mBillingClient?.startConnection(object : BillingClientStateListener {
        override fun onBillingSetupFinished(billingResult: BillingResult) {
            if (billingResult.responseCode == BillingClient.BillingResponseCode.OK) {



                val purchasesResult = mBillingClient?.queryPurchases(BillingClient.SkuType.SUBS) 




                // Init all the purchases to false in the shared preferences (security prevention)
                prefs.purchased = false


                // Retrieve and loop all the purchases done by the user
                // Update all the boolean related to the purchases done in the shared preferences
                if (purchasesResult?.purchasesList != null) {
                    for (purchase in purchasesResult.purchasesList!!) {


                        if (purchase.isAcknowledged) {
                            Log.e(Config.APPTAG, purchase.sku)
                            when (purchase.sku) {
                                skuname ->  {

                                    Log.e(Config.APPTAG, " Product "+purchase.sku+" is subscribed")



                                    // The subscription sku is found and active so then purchases to true in prefs
                                    prefs.purchased = true
                                }





                            }
                        }
                    }





                }
            }
        }

        override fun onBillingServiceDisconnected() {
            // Try to restart the connection on the next request to
            // Google Play by calling the startConnection() method.
            // TODO Note: It's strongly recommended that you implement your own connection retry policy and override the onBillingServiceDisconnected() method. Make sure you maintain the BillingClient connection when executing any methods.


            Log.e(Config.APPTAG, "onBillingServiceDisconnected")
        }
    })
}

billingClient.queryPurchases(BillingClient.SkuType.SUBS).getPurchasesList() 返回 null

billingClient.queryPurchases(BillingClient.SkuType.SUBS).getPurchasesList() returning null

android

in-app-billing

in-app-subscription