我在我的 MAUI 应用程序中使用
Plugin.InAppBilling选项 1：
ConsumePurchaseAsyncif (DeviceInfo.Platform == DevicePlatform.Android)
{
var consumed = await CrossInAppBilling.Current.ConsumePurchaseAsync(productId, purchase.PurchaseToken);
if (!consumed)
{
Debug.WriteLine("Purchase consumption/acknowledgment failed");
return;
}
Debug.WriteLine("Purchase acknowledged successfully");
}
但是我遇到了以下异常：
16:05:10:848 [0:] purchaseEx:>>Plugin.InAppBilling.InAppBillingPurchaseException: Unable to process purchase.
16:05:10:848 at Plugin.InAppBilling.InAppBillingImplementation.ParseBillingResult(BillingResult result, Boolean ignoreInvalidProducts)
16:05:10:848 at Plugin.InAppBilling.InAppBillingImplementation.ConsumePurchaseAsync(String productId, String transactionIdentifier)
16:05:10:848 at MyProjectName.Pages.ListPlansPage.PlanClicked(Object sender, EventArgs e) in E:\My Projects\MAUI
16:05:10:848 eedhelp-app-maui\MyProjectName\Pages\Subscription\ListPlansPage.xaml.cs:line 371
16:05:10:909 The thread 25 has exited with code 0 (0x0).
异常位于以下行：
var consumed = await CrossInAppBilling.Current.ConsumePurchaseAsync(productId, purchase.PurchaseToken);
选项2：
DependencyService创建了一个接口：IPurchaseAcknowledgment
public interface IPurchaseAcknowledgment
{
Task<bool> AcknowledgePurchaseAsync(string purchaseToken);
}
在
IPurchaseAcknowledgmentMainActivitypublic class MainActivity : MauiAppCompatActivity, IPurchaseAcknowledgment
{
/// <summary>
/// Acknowledge purchase using Google Play BillingClient
/// </summary>
public async Task<bool> AcknowledgePurchaseAsync(string purchaseToken)
{
var billingClient = BillingClient.NewBuilder(Android.App.Application.Context)
.SetListener(new PurchaseUpdateListener()) // You can implement your own listener if needed
.EnablePendingPurchases()
.Build();
// Connect to the BillingClient
var billingConnectionTaskCompletionSource = new TaskCompletionSource<BillingResult>();
billingClient.StartConnection(new BillingClientStateListener(
onBillingSetupFinished: billingResult => billingConnectionTaskCompletionSource.SetResult(billingResult),
onBillingServiceDisconnected: () => billingConnectionTaskCompletionSource.SetException(new System.Exception("Billing service disconnected"))
));
var connectionResult = await billingConnectionTaskCompletionSource.Task;
if (connectionResult.ResponseCode != BillingResponseCode.Ok)
{
return false; // Connection failed
}
// Acknowledge the purchase
var acknowledgeParams = AcknowledgePurchaseParams.NewBuilder()
.SetPurchaseToken(purchaseToken)
.Build();
var acknowledgeTaskCompletionSource = new TaskCompletionSource<BillingResult>();
billingClient.AcknowledgePurchase(acknowledgeParams, new AcknowledgePurchaseResponseListener(
result => acknowledgeTaskCompletionSource.SetResult(result)
));
var acknowledgeResult = await acknowledgeTaskCompletionSource.Task;
// End connection
billingClient.EndConnection();
return acknowledgeResult.ResponseCode == BillingResponseCode.Ok;
}
/// <summary>
/// Listener for purchase updates (can be extended if required)
/// </summary>
private class PurchaseUpdateListener : Java.Lang.Object, IPurchasesUpdatedListener
{
public void OnPurchasesUpdated(BillingResult billingResult, IList<Purchase> purchases)
{
// Handle purchase updates here if needed
}
}
/// <summary>
/// Listener for billing client state
/// </summary>
private class BillingClientStateListener : Java.Lang.Object, IBillingClientStateListener
{
private readonly System.Action<BillingResult> onBillingSetupFinished;
private readonly System.Action onBillingServiceDisconnected;
public BillingClientStateListener(System.Action<BillingResult> onBillingSetupFinished, System.Action onBillingServiceDisconnected)
{
this.onBillingSetupFinished = onBillingSetupFinished;
this.onBillingServiceDisconnected = onBillingServiceDisconnected;
}
public void OnBillingSetupFinished(BillingResult billingResult)
{
onBillingSetupFinished?.Invoke(billingResult);
}
public void OnBillingServiceDisconnected()
{
onBillingServiceDisconnected?.Invoke();
}
}
/// <summary>
/// Listener for acknowledge purchase response
/// </summary>
private class AcknowledgePurchaseResponseListener : Java.Lang.Object, IAcknowledgePurchaseResponseListener
{
private readonly System.Action<BillingResult> onAcknowledgeResponse;
public AcknowledgePurchaseResponseListener(System.Action<BillingResult> onAcknowledgeResponse)
{
this.onAcknowledgeResponse = onAcknowledgeResponse;
}
public void OnAcknowledgePurchaseResponse(BillingResult billingResult)
{
onAcknowledgeResponse?.Invoke(billingResult);
}
}
}
最后计划购买后：
if (DeviceInfo.Platform == DevicePlatform.Android)
{
var acknowledgmentService = DependencyService.Get<IPurchaseAcknowledgment>();
var acknowledged = await acknowledgmentService.AcknowledgePurchaseAsync(purchase.PurchaseToken);
if (!acknowledged)
{
Debug.WriteLine("Purchase acknowledgment failed");
return;
}
Debug.WriteLine("Purchase acknowledged successfully");
}
但出现以下异常：
16:23:24:835 [0:] exception:>>System.NullReferenceException: Object reference not set to an instance of an object.
16:23:24:835 at MyProjectName.Pages.ListPlansPage.PlanClicked(Object sender, EventArgs e) in E:\My Projects\MAUI
16:23:24:835 eedhelp-app-maui\MyProjectName\Pages\Subscription\ListPlansPage.xaml.cs:line 383
异常位于以下行：
var acknowledged = await acknowledgmentService.AcknowledgePurchaseAsync(purchase.PurchaseToken);
还有其他解决办法吗？
更新
我尝试如下：
var consumed = await CrossInAppBilling.Current.ConsumePurchaseAsync(purchase.ProductId, purchase.TransactionIdentifier);
但出现以下异常：
12:43:02:766 [0:] purchaseEx:>>Plugin.InAppBilling.InAppBillingPurchaseException: Unable to process purchase.
12:43:02:766 at Plugin.InAppBilling.InAppBillingImplementation.ParseBillingResult(BillingResult result, Boolean ignoreInvalidProducts)
12:43:02:766 at Plugin.InAppBilling.InAppBillingImplementation.ConsumePurchaseAsync(String productId, String transactionIdentifier)
12:43:02:766 at MyProjectName.Pages.ListPlansPage.PlanClicked(Object sender, EventArgs e) in E:\My Projects\MAUI
12:43:02:766 eedhelp-app-maui\MyProjectName\Pages\Subscription\ListPlansPage.xaml.cs:line 372
我正在使用 v 7.1.3 并在致电购买后 就像我自己的内部产品ID一样：
购买 = 等待 CrossInAppBilling.Current.PurchaseAsync(productId.ToString(), ItemType.Subscription);
我这样确认：
//possibility that a null came through.
if (purchase == null)
{
//did not purchase
return false;
}
else if (purchase.State == PurchaseState.Purchased)
{
#如果安卓 // 仅需要在 Android 上完成，除非您在 iOS 上关闭自动完成
//V 7.1.3
IEnumerable<(string, bool)> ack;
ack = await CrossInAppBilling.Current.FinalizePurchaseAsync(purchase.TransactionIdentifier);
// TODO: Handle if acknowledge was successful or not
#endif
}