我想了解用户是否从MainActivity主动订阅了Basic / Premium内容。有一个BillingClientLifecycle类可以启动订阅过程。据我了解，queryPurchses应显示用户是否具有有效订阅。但是很明显，它显示（通过Toasts，我放置在此处以显示订阅状态），即使实际上未订阅用户，该用户也已订阅。
public void queryPurchases() {
if (!billingClient.isReady()) {
Log.e(TAG, "queryPurchases: BillingClient is not ready");
}
Log.d(TAG, "queryPurchases: SUBS");
Purchase.PurchasesResult result = billingClient.queryPurchases(BillingClient.SkuType.SUBS);
if (result == null) {
Log.i(TAG, "queryPurchases: null purchase result");
processPurchases(null);
///
Toast.makeText(applicationContext,"queryPurchases: null purchase result", Toast.LENGTH_SHORT).show();
} else {
if (result.getPurchasesList() == null) {
Log.i(TAG, "queryPurchases: null purchase list");
processPurchases(null);
///
Toast.makeText(applicationContext,"queryPurchases: null purchase list", Toast.LENGTH_SHORT).show();
} else {
processPurchases(result.getPurchasesList());
///
Toast.makeText(applicationContext,"user has subscription!", Toast.LENGTH_SHORT).show();
}
}
}
我在这里做错了什么？我想根据订阅状态更新主要活动。的BillingClientLifecycle是如下：
public class BillingClientLifecycle implements LifecycleObserver, PurchasesUpdatedListener,
BillingClientStateListener, SkuDetailsResponseListener {
private static final String TAG = "BillingLifecycle";
Context applicationContext = MainActivity.getContextOfApplication();
/**
* The purchase event is observable. Only one observer will be notified.
*/
public SingleLiveEvent<List<Purchase>> purchaseUpdateEvent = new SingleLiveEvent<>();
/**
* Purchases are observable. This list will be updated when the Billing Library
* detects new or existing purchases. All observers will be notified.
*/
public MutableLiveData<List<Purchase>> purchases = new MutableLiveData<>();
/**
* SkuDetails for all known SKUs.
*/
public MutableLiveData<Map<String, SkuDetails>> skusWithSkuDetails = new MutableLiveData<>();
private static volatile BillingClientLifecycle INSTANCE;
private Application app;
private BillingClient billingClient;
public BillingClientLifecycle(Application app) {
this.app = app;
}
public static BillingClientLifecycle getInstance(Application app) {
if (INSTANCE == null) {
synchronized (BillingClientLifecycle.class) {
if (INSTANCE == null) {
INSTANCE = new BillingClientLifecycle(app);
}
}
}
return INSTANCE;
}
@OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
public void create() {
Log.d(TAG, "ON_CREATE");
// Create a new BillingClient in onCreate().
// Since the BillingClient can only be used once, we need to create a new instance
// after ending the previous connection to the Google Play Store in onDestroy().
billingClient = BillingClient.newBuilder(app)
.setListener(this)
.enablePendingPurchases() // Not used for subscriptions.
.build();
if (!billingClient.isReady()) {
Log.d(TAG, "BillingClient: Start connection...");
billingClient.startConnection(this);
}
}
@OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
public void destroy() {
Log.d(TAG, "ON_DESTROY");
if (billingClient.isReady()) {
Log.d(TAG, "BillingClient can only be used once -- closing connection");
// BillingClient can only be used once.
// After calling endConnection(), we must create a new BillingClient.
billingClient.endConnection();
}
}
@Override
public void onBillingSetupFinished(BillingResult billingResult) {
int responseCode = billingResult.getResponseCode();
String debugMessage = billingResult.getDebugMessage();
Log.d(TAG, "onBillingSetupFinished: " + responseCode + " " + debugMessage);
if (responseCode == BillingClient.BillingResponseCode.OK) {
// The billing client is ready. You can query purchases here.
querySkuDetails();
queryPurchases();
}
}
@Override
public void onBillingServiceDisconnected() {
Log.d(TAG, "onBillingServiceDisconnected");
// TODO: Try connecting again with exponential backoff.
}
/**
* Receives the result from {@link #querySkuDetails()}}.
* <p>
* Store the SkuDetails and post them in the {@link #skusWithSkuDetails}. This allows other
* parts of the app to use the {@link SkuDetails} to show SKU information and make purchases.
*/
@Override
public void onSkuDetailsResponse(BillingResult billingResult, List<SkuDetails> skuDetailsList) {
if (billingResult == null) {
Log.wtf(TAG, "onSkuDetailsResponse: null BillingResult");
return;
}
int responseCode = billingResult.getResponseCode();
String debugMessage = billingResult.getDebugMessage();
switch (responseCode) {
case BillingClient.BillingResponseCode.OK:
Log.i(TAG, "onSkuDetailsResponse: " + responseCode + " " + debugMessage);
if (skuDetailsList == null) {
Log.w(TAG, "onSkuDetailsResponse: null SkuDetails list");
skusWithSkuDetails.postValue(Collections.<String, SkuDetails>emptyMap());
} else {
Map<String, SkuDetails> newSkusDetailList = new HashMap<String, SkuDetails>();
for (SkuDetails skuDetails : skuDetailsList) {
newSkusDetailList.put(skuDetails.getSku(), skuDetails);
}
skusWithSkuDetails.postValue(newSkusDetailList);
Log.i(TAG, "onSkuDetailsResponse: count " + newSkusDetailList.size());
}
break;
case BillingClient.BillingResponseCode.SERVICE_DISCONNECTED:
case BillingClient.BillingResponseCode.SERVICE_UNAVAILABLE:
case BillingClient.BillingResponseCode.BILLING_UNAVAILABLE:
case BillingClient.BillingResponseCode.ITEM_UNAVAILABLE:
case BillingClient.BillingResponseCode.DEVELOPER_ERROR:
case BillingClient.BillingResponseCode.ERROR:
Log.e(TAG, "onSkuDetailsResponse: " + responseCode + " " + debugMessage);
break;
case BillingClient.BillingResponseCode.USER_CANCELED:
Log.i(TAG, "onSkuDetailsResponse: " + responseCode + " " + debugMessage);
break;
// These response codes are not expected.
case BillingClient.BillingResponseCode.FEATURE_NOT_SUPPORTED:
case BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED:
case BillingClient.BillingResponseCode.ITEM_NOT_OWNED:
default:
Log.wtf(TAG, "onSkuDetailsResponse: " + responseCode + " " + debugMessage);
}
}
/**
* Query Google Play Billing for existing purchases.
* <p>
* New purchases will be provided to the PurchasesUpdatedListener.
* You still need to check the Google Play Billing API to know when purchase tokens are removed.
*/
public void queryPurchases() {
if (!billingClient.isReady()) {
Log.e(TAG, "queryPurchases: BillingClient is not ready");
}
Log.d(TAG, "queryPurchases: SUBS");
Purchase.PurchasesResult result = billingClient.queryPurchases(BillingClient.SkuType.SUBS);
if (result == null) {
Log.i(TAG, "queryPurchases: null purchase result");
processPurchases(null);
///
Toast.makeText(applicationContext,"queryPurchases: null purchase result", Toast.LENGTH_SHORT).show();
} else {
if (result.getPurchasesList() == null) {
Log.i(TAG, "queryPurchases: null purchase list");
processPurchases(null);
///
Toast.makeText(applicationContext,"queryPurchases: null purchase list", Toast.LENGTH_SHORT).show();
} else {
processPurchases(result.getPurchasesList());
///
Toast.makeText(applicationContext,"user has subscription!", Toast.LENGTH_SHORT).show();
}
}
}
/**
* Called by the Billing Library when new purchases are detected.
*/
public void onPurchasesUpdated(BillingResult billingResult, List<Purchase> purchases) {
if (billingResult == null) {
Log.wtf(TAG, "onPurchasesUpdated: null BillingResult");
return;
}
int responseCode = billingResult.getResponseCode();
String debugMessage = billingResult.getDebugMessage();
Log.d(TAG, "onPurchasesUpdated: $responseCode $debugMessage");
switch (responseCode) {
case BillingClient.BillingResponseCode.OK:
if (purchases == null) {
Log.d(TAG, "onPurchasesUpdated: null purchase list");
processPurchases(null);
} else {
processPurchases(purchases);
}
break;
case BillingClient.BillingResponseCode.USER_CANCELED:
Log.i(TAG, "onPurchasesUpdated: User canceled the purchase");
break;
case BillingClient.BillingResponseCode.ITEM_ALREADY_OWNED:
Log.i(TAG, "onPurchasesUpdated: The user already owns this item");
break;
case BillingClient.BillingResponseCode.DEVELOPER_ERROR:
Log.e(TAG, "onPurchasesUpdated: Developer error means that Google Play " +
"does not recognize the configuration. If you are just getting started, " +
"make sure you have configured the application correctly in the " +
"Google Play Console. The SKU product ID must match and the APK you " +
"are using must be signed with release keys."
);
break;
}
}
/**
* Send purchase SingleLiveEvent and update purchases LiveData.
* <p>
* The SingleLiveEvent will trigger network call to verify the subscriptions on the sever.
* The LiveData will allow Google Play settings UI to update based on the latest purchase data.
*/
private void processPurchases(List<Purchase> purchasesList) {
if (purchasesList != null) {
Log.d(TAG, "processPurchases: " + purchasesList.size() + " purchase(s)");
} else {
Log.d(TAG, "processPurchases: with no purchases");
}
if (isUnchangedPurchaseList(purchasesList)) {
Log.d(TAG, "processPurchases: Purchase list has not changed");
return;
}
purchaseUpdateEvent.postValue(purchasesList);
purchases.postValue(purchasesList);
if (purchasesList != null) {
logAcknowledgementStatus(purchasesList);
}
}
/**
* Log the number of purchases that are acknowledge and not acknowledged.
* <p>
* https://developer.android.com/google/play/billing/billing_library_releases_notes#2_0_acknowledge
* <p>
* When the purchase is first received, it will not be acknowledge.
* This application sends the purchase token to the server for registration. After the
* purchase token is registered to an account, the Android app acknowledges the purchase token.
* The next time the purchase list is updated, it will contain acknowledged purchases.
*/
private void logAcknowledgementStatus(List<Purchase> purchasesList) {
int ack_yes = 0;
int ack_no = 0;
for (Purchase purchase : purchasesList) {
if (purchase.isAcknowledged()) {
ack_yes++;
} else {
ack_no++;
}
}
Log.d(TAG, "logAcknowledgementStatus: acknowledged=" + ack_yes +
" unacknowledged=" + ack_no);
}
/**
* Check whether the purchases have changed before posting changes.
*/
private boolean isUnchangedPurchaseList(List<Purchase> purchasesList) {
// TODO: Optimize to avoid updates with identical data.
return false;
}
/**
* In order to make purchases, you need the {@link SkuDetails} for the item or subscription.
* This is an asynchronous call that will receive a result in {@link #onSkuDetailsResponse}.
*/
public void querySkuDetails() {
Log.d(TAG, "querySkuDetails");
List<String> skus = new ArrayList<>();
skus.add(Constants.BASIC_SKU);
skus.add(Constants.PREMIUM_SKU);
SkuDetailsParams params = SkuDetailsParams.newBuilder()
.setType(BillingClient.SkuType.SUBS)
.setSkusList(skus)
.build();
Log.i(TAG, "querySkuDetailsAsync");
billingClient.querySkuDetailsAsync(params, this);
}
/**
* Launching the billing flow.
* <p>
* Launching the UI to make a purchase requires a reference to the Activity.
*/
public int launchBillingFlow(Activity activity, BillingFlowParams params) {
String sku = params.getSku();
String oldSku = params.getOldSku();
Log.i(TAG, "launchBillingFlow: sku: " + sku + ", oldSku: " + oldSku);
if (!billingClient.isReady()) {
Log.e(TAG, "launchBillingFlow: BillingClient is not ready");
}
BillingResult billingResult = billingClient.launchBillingFlow(activity, params);
int responseCode = billingResult.getResponseCode();
String debugMessage = billingResult.getDebugMessage();
Log.d(TAG, "launchBillingFlow: BillingResponse " + responseCode + " " + debugMessage);
return responseCode;
}
/**
* Acknowledge a purchase.
* <p>
* https://developer.android.com/google/play/billing/billing_library_releases_notes#2_0_acknowledge
* <p>
* Apps should acknowledge the purchase after confirming that the purchase token
* has been associated with a user. This app only acknowledges purchases after
* successfully receiving the subscription data back from the server.
* <p>
* Developers can choose to acknowledge purchases from a server using the
* Google Play Developer API. The server has direct access to the user database,
* so using the Google Play Developer API for acknowledgement might be more reliable.
* TODO(134506821): Acknowledge purchases on the server.
* <p>
* If the purchase token is not acknowledged within 3 days,
* then Google Play will automatically refund and revoke the purchase.
* This behavior helps ensure that users are not charged for subscriptions unless the
* user has successfully received access to the content.
* This eliminates a category of issues where users complain to developers
* that they paid for something that the app is not giving to them.
*/
public void acknowledgePurchase(String purchaseToken) {
Log.d(TAG, "acknowledgePurchase");
AcknowledgePurchaseParams params = AcknowledgePurchaseParams.newBuilder()
.setPurchaseToken(purchaseToken)
.build();
billingClient.acknowledgePurchase(params, new AcknowledgePurchaseResponseListener() {
@Override
public void onAcknowledgePurchaseResponse(BillingResult billingResult) {
int responseCode = billingResult.getResponseCode();
String debugMessage = billingResult.getDebugMessage();
Log.d(TAG, "acknowledgePurchase: " + responseCode + " " + debugMessage);
}
});
}
}
我正在考虑在BillingClientLifecycle类内部使用共享的首选项（而不是Toasts），并从MainActivity类或任何其他类中检索订阅状态，这些类需要在启动应用程序时通知订阅状态。尽管我不想使用共享首选项，而是直接调用订阅信息。
计费过程的实现看起来不错，但是缺少检查以确定当前是否真正激活订阅。
可以通过使用LiveData对象来进行观察。这样我们就不需要SharedPreferences左右的状态。我将在下面的观察部分进行介绍。详细答案：
采购清单
首先，让我们解释一下购买清单在计费API中的确切含义：
看到正在执行确认步骤，我假设付款确认已成功完成。
第3点是为什么它不检测实际的订阅状态，因为不检查购买状态。
检查订阅状态
该queryPurchases()呼叫返回用户为所请求的产品付款。我们收到的数组可以有多个项目（每个应用内项目或订阅最多可以有一个项目）。我们需要检查所有。
每次购买都有更多数据。这是我们检查状态所需的方法：
getSku() //验证产品是否是我们想要的getPurchaseState() //获取实际的购买状态isAcknowledged() //要知道付款是否已确认，如果未确认，则表示付款尚未成功为了检查当前是否已针对PREMIUM sku付款并有效：
boolean isPremiumActive = Constants.PREMIUM_SKU.equals(purchase.getSku()) && purchase.getPurchaseState() == Purchase.PurchaseState.PURCHASED && purchase.isAcknowledged()
如果我们要检查是否有任何订阅处于活动状态，请检查其他sku是否相同（遍历sku和购买）
*请注意，如果现在isPremiumActive为true，则表示用户当前具有有效的订阅。这意味着，如果用户取消了他的订阅，但直到结束期仍付款，则该值仍为true。仅仅是因为用户仍然有权在计费期届满之前访问内容。
*如果订阅期确实结束（取消或过期），则开票客户将不再退还购买的款项。
观察当前状态
现在我们知道如何验证购买的商品，我们可以使用LiveData轻松读取此状态，以便我们可以随时访问它。在示例中，我们已经有te LiveData purchases，它包含所有购买的商品，并在queryPurchases()调用后填充。
让我们创建一个使用此purchasesLiveData的新LiveData ，但根据我们是否激活PREMIUM_SKU将返回true或false：
public LiveData<Boolean> isSubscriptionActive = Transformations.map(purchases, purchases -> {
boolean hasSubscription = false;
for (Purchase purchase : purchases) {
// TODO: Also check for the other SKU's if needed
if (Constants.PREMIUM_SKU.equals(purchase.getSku()) && purchase.getPurchaseState() == Purchase.PurchaseState.PURCHASED && purchase.isAcknowledged()) {
// This purchase is purchased and acknowledged, it is currently active!
hasSubscription = true;
}
}
return hasSubscription;
});
在BillingClientLifecycle中添加此块，如果购买列表更改，它将发出值true或false
与往常一样，在要接收更新的活动中观察此LiveData：
billingClientLifecycle.isSubscriptionActive.observe(this, hasSubscription -> {
if (hasSubscription) {
// User is subscribed!
Toast.makeText(this, "User has subscription!", Toast.LENGTH_SHORT).show();
} else {
// User is a regular user!
}
});
放在MainActivity您的情况下。它将观察订阅的更改，并在更改时触发两个功能之一。
*如果不需要实时数据，而是直接获取值的方法，则也可以只使用内的布尔值字段，billingClientLifecycle并processPurchases()使用与上述相同的方法在方法中正确更新此值。
高级
对于更高级的用法，我们还可以使用购买对象的其他状态：
如果购买状态为Purchase.PurchaseState.PENDING，则表示Google或用户仍然需要执行一些步骤来验证付款。基本上，这意味着计费API无法确定付款是否已完成（如果发生）。我们也可以例如通过显示一条消息来告知用户有关此状态的信息，以完成其付款等。
如果已付款但尚未确认购买，则表示中的确认步骤BillingClientLifecycle未成功。此外，在这种情况下，Google Play会自动将付款退还给用户。例如：对于月度订阅，确认期为3天，因此3天后，用户将钱退还并删除了购买。
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