private async Task AcklowledgePurchaseAsync(string token)
{
AcknowledgePurchaseParams acknowledgePurchaseParams =
AcknowledgePurchaseParams.NewBuilder()
.SetPurchaseToken(token)
.Build();
// Consume the Non-Consumable Product
BillingResult result = await _billingClient.AcknowledgePurchaseAsync(acknowledgePurchaseParams);
if (result == null)
{
// Failed to get result back.
throw new InAppPurchaseException(PurchaseError.Unknown, "BillingResult is null");
}
if (result.ResponseCode != BillingResponseCode.Ok)
{
throw new InAppPurchaseException(
result.ResponseCode.ToPurchaseError(),
result.DebugMessage);
}
// Otherwise, the Acknowledgement succeeded.
}
public Task <BillingResult> AcknowledgePurchaseAsync(AcknowledgePurchaseParams acknowledgePurchaseParams)
{
var tcs = new TaskCompletionSource <BillingResult>();
var listener = new InternalAcknowledgePurchaseResponseListener
{
AcknowledgePurchaseResponseHandler = r => tcs.TrySetResult(r)
};
AcknowledgePurchase(acknowledgePurchaseParams, listener);
return(tcs.Task);
}
/// <summary>
/// If you use the Google Play Billing Library version 2.0 or newer, you must acknowledge all purchases within three days.
/// </summary>
/// <param name="purchase"></param>
/// <returns></returns>
private async Task <bool> NotifyFullFillmentAsync(Purchase purchase)
{
if (!purchase.IsAcknowledged)
{
if (BillingClient == null || !BillingClient.IsReady)
{
await ConnectAsync();
}
_tcsAcknowledge = new TaskCompletionSource <bool>();
AcknowledgePurchaseParams acknowledgePurchaseParams =
AcknowledgePurchaseParams.NewBuilder()
.SetPurchaseToken(purchase.PurchaseToken)
.Build();
BillingClient.AcknowledgePurchase(acknowledgePurchaseParams, this);
return(await _tcsAcknowledge?.Task);
}
return(true);
}
