在iOS应用中恢复以前的购买

Question

当我的应用程序从另一台设备登录时，我正在尝试恢复以前的购买。我使用以下代码，但问题是还原从未完成。抛出错误

  

忽略restoreCompletedTransactionWithApplicationUsername ：，因为已经在还原事务

- (void)restoreTransaction:(SKPaymentTransaction *)transaction
{
    //newly added code to restore function
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}

我应该等待应用程序完成还原还是这是错误？但是什么也没发生。

Answer 1

我找到了解决方案。以下是代码流。

- (void) checkPurchasedItems:(CDVInvokedUrlCommand *)command
{
 self.callbackId = command.callbackId;

   [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
   [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];


 }

- (void) paymentQueueRestoreCompletedTransactionsFinished: 
     (SKPaymentQueue *)queue
 {
     purchasedItemIDs = [[NSMutableArray alloc] init];

     NSLog(@"received restored transactions: %i", 
     queue.transactions.count);
  for (SKPaymentTransaction *transaction in queue.transactions)
  {
  NSString *productID = transaction.payment.productIdentifier;
 // [purchasedItemIDs addObject:productID];
// NSLog(@"Product id in buyproduct:%@",productID);
 }
CDVPluginResult* result = [CDVPluginResult 
resultWithStatus:CDVCommandStatus_OK    messageAsString:@"1"];
[self.commandDelegate sendPluginResult:result 
callbackId:self.callbackId];
 }