Android：如何检查用户是否有活动订阅

Question

我正在使用Google Billing 并尝试通过两种解决方案了解订阅是否已过期：

1. billingClient.queryPurchaseHistoryAsync(BillingClient.SkuType.SUBS) { billingResult, purchasesList -> }

2. val purchasesList = billingClient.queryPurchases(BillingClient.SkuType.SUBS).purchasesList

他们会返回类似的东西：

{
  "productId": "weekly_with_trial",
  "purchaseToken": "someToken",
  "purchaseTime": 1563305764597,
  "developerPayload": null
}

{
  "orderId": "GPA.3380-7704-5235-01361",
  "packageName": "com.myapp",
  "productId": "weekly_trial_trial",
  "purchaseTime": 1563305764597,
  "purchaseState": 0,
  "purchaseToken": "someToken",
  "autoRenewing": false,
  "acknowledged": false
}

他们俩都向我返回了购买清单，但没有任何关于它是否过期的信息。如何检查？

Answer 1

Google play billing 的文档清楚地表明，有两个函数可以获取购买列表

val purchasesResult: PurchasesResult =
        billingClient.queryPurchases(SkuType.INAPP)

当您进行查询购买时，只有有效订阅会出现在此列表中。只要应用内商品在此列表中，用户就应该有权访问它。

这意味着如果购买已过期，那么您将不会在 queryPurchase 的响应中获得该购买项目。 但是您必须记住，它返回的是 google play store 的本地缓存结果。

因此，为了从网络调用中获取购买请求，您需要使用异步方法，即 queryPurchaseHistoryAsync()

billingClient.queryPurchaseHistoryAsync(SkuType.INAPP, { billingResult, purchasesList ->
   if (billingResult.responseCode == BillingResponse.OK && purchasesList != null) {
       for (purchase in purchasesList) {
           // Process the result.
       }
   }
})

但是，对象中存在一个问题，该对象包含有关用户为每个产品 ID 进行的最近购买的信息，即使该购买已过期、取消或消耗。

因此您可以使用 queryPurchase() 来获取所有活跃的购买。

Answer 2

这是我用来检查有效订阅的代码：

private void isUserHasSubscription(Context context) {
        billingClient = BillingClient.newBuilder(context).enablePendingPurchases().setListener(this).build();
        billingClient.startConnection(new BillingClientStateListener() {
            @Override
            public void onBillingSetupFinished(BillingResult billingResult) {
                Purchase.PurchasesResult purchasesResult=billingClient.queryPurchases(BillingClient.SkuType.SUBS);

                billingClient.queryPurchaseHistoryAsync(BillingClient.SkuType.SUBS,(billingResult1, list) -> {
                    
                    Log.d("billingprocess","purchasesResult.getPurchasesList():"+purchasesResult.getPurchasesList());
                    
                    if (billingResult1.getResponseCode() == BillingClient.BillingResponseCode.OK &&
                            !Objects.requireNonNull(purchasesResult.getPurchasesList()).isEmpty()) {

                            //here you can pass the user to use the app because he has an active subscription  
                            Intent myIntent=new Intent(context,MainActivity.class);
                            startActivity(myIntent);
                    }
                });
            }
            @Override
            public void onBillingServiceDisconnected() {
                // Try to restart the connection on the next request to
                // Google Play by calling the startConnection() method.
                Log.d("billingprocess","onBillingServiceDisconnected");
            }
        });
    }