response.products count始終返回0 Xcode 4 ios應用程序內購買

Question

那麼我的問題很簡單，當試圖在模擬器中進行應用程序購買時，response.products count總是返回0，因此不購買...我一直試圖調試但沒有成功....這裏是代碼：

- (IBAction)buy500Coins:(id)sender { 

[buyingAI startAnimating]; 

if (internetActive == NO) { 

    [buyingAI stopAnimating]; 

    askToPurchase = [[UIAlertView alloc] 
        initWithTitle:@"No internet connection" 
        message:@"It seems you are not connected to the internet. in-app purchases require a internet connection. Please connect to the internet and try again." 
        delegate:nil 
        cancelButtonTitle:@"OK" 
        otherButtonTitles:nil, nil]; 


    [askToPurchase show]; 


} else { 

    askToPurchase = [[UIAlertView alloc] 
        initWithTitle:@"Are you Sure?" 
        message:@"Are you sure you want to buy 4000 coins for 0.99$?" 
        delegate:self 
        cancelButtonTitle:@"No" 
        otherButtonTitles:@"Yes", nil]; 

    askToPurchase.delegate = self; 

    [askToPurchase show]; 

    [buyingAI stopAnimating]; 

     } 
    } 

    -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { 



if (alertView == askToPurchase) { 
    if (buttonIndex == 1) { 
     if ([SKPaymentQueue canMakePayments]) { 

      SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:@"com.ge0rges.Meme_jump.500C"]]; 



      request.delegate = self; 

      [request start]; 

      [buyingAI startAnimating]; 
      buyingAI.hidden = NO; 

     } else { 

      UIAlertView *tmp = [[UIAlertView alloc] 
           initWithTitle:@"Prohibited" 
           message:@"Sorry , Parental Control is enabled, you cannot make a purchase." 
           delegate:nil 
           cancelButtonTitle:@"Ok" 
           otherButtonTitles:nil, nil]; 
      [tmp show]; 

     } 

    } 

} 
} 

-(void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response 

{ 
    [buyingAI stopAnimating]; 


SKProduct *validProduct = nil; 

int count = [response.products count]; 
NSLog(@"%i", count); 
if (count>0) { 

    validProduct = [response.products objectAtIndex:0]; 

    SKPayment *payment = [SKPayment paymentWithProduct:validProduct]; 

    [[SKPaymentQueue defaultQueue] addTransactionObserver:self]; 

    [[SKPaymentQueue defaultQueue] addPayment:payment]; // <-- KA CHING! 





} else { 

    UIAlertView *notAvail = [[UIAlertView alloc] 
          initWithTitle:@"Not Available" 
          message:@"Sorry there seems to be a problem. Please try again later." 
          delegate:nil 
          cancelButtonTitle:@"Ok" 
          otherButtonTitles:nil, nil]; 

    [notAvail show]; 

    } 
} 

-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { 
    for (SKPaymentTransaction *transaction in transactions) { 
     switch (transaction.transactionState) { 
      case SKPaymentTransactionStatePurchasing: 
     { 
      [buyingAI startAnimating]; 
      buyingAI.hidden = NO; 

      break; 
     } 

     case SKPaymentTransactionStatePurchased: 
     { 

      [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 

      [buyingAI stopAnimating]; 

      UIAlertView *complete = [[UIAlertView alloc] 
            initWithTitle:@"Complete" 
            message:@"You have received 4000 Coins." 
            delegate:nil 
            cancelButtonTitle:@"Awesome!" 
            otherButtonTitles:nil, nil]; 
      [complete show]; 


      allCoins += 4000; 

      break; 
     } 

     case SKPaymentTransactionStateRestored: 
     { 

      [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 

      [buyingAI stopAnimating]; 

      break; 
     } 

     case SKPaymentTransactionStateFailed: 
     { 

      if (transaction.error.code != SKErrorPaymentCancelled) { 

       UIAlertView *failed = [[UIAlertView alloc] 
             initWithTitle:@"Failed" 
             message:@"Oops there seems to be a problem. Please try again later and make sure your internet connection is active." 
             delegate:nil 
             cancelButtonTitle:@"Ok :(" 
             otherButtonTitles:nil, nil]; 
       [failed show]; 

      } 
      [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 

      [buyingAI stopAnimating]; 

       break; 
      } 
     } 
    } 
} 

Answer 1

必須確保標識符是正確的，它拼錯了。