SKPayments 完成交易两次调用
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【中文标题】SKPayments 完成交易两次调用【英文标题】:SKPayments Complete transaction called two times 【发布时间】:2013-08-19 11:03:40 【问题描述】:我遇到了严重的问题,我正在处理应用内购买,当我第一次尝试购买时它工作正常,第二次我的 completeTransaction 调用了两次.. 我不知道为什么我会遇到这个问题。
收到收据后,我调用我的验证方法,如果验证成功,服务器会在 http 响应中向我发送音频文件,我下载该文件,当我成功下载文件时,我调用 finishtransaction。
这是我的代码
- (void)startPurchase
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
if([SKPaymentQueue canMakePayments])
NSLog(@"IN-APP:can make payments");
SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers: [NSSet setWithObject:myIdentifier]];
request.delegate = self;
NSLog(@"** Productdata is ** %@",myIdentifier);
[request start];
else
NSLog(@"IN-APP:can't make payments");
loadingHUD.hidden=YES;
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
NSLog(@"IN productsRequest END %d",[response.products count]);
@try
SKProduct *product = [response.products objectAtIndex:0];
SKPayment *newPayment = [SKPayment paymentWithProduct:product];
[[SKPaymentQueue defaultQueue] addPayment:newPayment];
NSLog(@"IN-APP:productsRequest END");
loadingHUD.hidden=YES; // Hide the Loading progress bar
@catch (NSException *exception)
// Failed to purchase Hide the progress bar and Display Error Dialog
loadingHUD.hidden=YES;
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"error" message:@"Errror " delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alertView show];
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
for (SKPaymentTransaction *transaction in transactions)
switch (transaction.transactionState)
case SKPaymentTransactionStatePurchased:
[self completeTransaction:transaction];
break;
case SKPaymentTransactionStateFailed:
[self failedTransaction:transaction];
break;
case SKPaymentTransactionStateRestored:
[self restoreTransaction:transaction];
default:
break;
- (void) completeTransaction: (SKPaymentTransaction *)transaction
NSLog(@"Transaction Completed");
// Finally, remove the transaction from the payment queue.
[self verifyReceipt:transaction]; // Call the verifyReceipt method to send transaction.bytes
// [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
NSLog(@"Purchase Transaction finish");
在下载成功块中的 VerifyTransaction 方法中,我调用完成事务
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
[[SKPaymentQueue defaultQueue] finishTransaction: transaction]; // Finish the transaction
// NSLog(@"Successfully downloaded file to %@",[[NSString alloc] initWithData:operation.responseData encoding:NSASCIIStringEncoding]);
// Give alert that downloading successful.
NSLog(@"Successfully downloaded file to %@", destPath);
// NSLog(@"response: %@", operation.responseString); // Give alert that downloading successful.
// [self.target parserDidDownloadItem:destPath];
//loadingHUD.detailsLabelText = [NSString stringWithFormat:@"%@ %i%%",@"Downloading",100];
[loadingHUD hide:TRUE];
[DBHelper savePurchaseId:fileName]; // save the purchase itune id into local database to populate hover image of play button on main List
[self movieReceived];
【问题讨论】:
【参考方案1】:看起来您的观察者队列仍然包含旧产品 ID
- (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray *)transactions
NSLog(@"Purchase removedTransactions");
// Release the transaction observer since transaction is finished/removed.
[[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
在您完成交易后删除产品 ID。
【讨论】:
这个代表没有打电话给我 如何处理后续交易?我的理解是,当您为任何后续购买恢复事务观察器时,它将使用 App Store 中用户的现有队列进行更新。因此,这似乎只是一个临时修复。 当任何随机事务都可以从队列中移除时,移除事务观察者很奇怪..【参考方案2】:我最终做了以下事情:
if(contains(self.transactions, trans.transactionIdentifier) == false)
self.transactions.append(trans.transactionIdentifier)
//Give the user the purchased product
删除观察者在一定程度上缓解了这个问题,但当我向应用程序中的购买按钮“发送垃圾邮件”时,我仍然偶尔会遇到双重呼叫。上面的解决方案完全解决了它,并且在我的测试中看起来非常强大。
【讨论】:
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