我正在为书架实现应用程序购买功能，但在购买书籍期间随机出现错误消息。
错误消息是“付款请求仅限于通过 Store Kit 的 didReceiveResponse 方法返回为有效的产品。”
我在苹果 http://developer.apple.com/library/ios/#qa/qa2010/qa1691.html中找到了文档， 但它无助于解决问题......
同时观察者打印出另一个错误：“无法连接到 iTunes Store”。
我的应用内购买逻辑流程：
应用开始：
- (void) requestProductDataWithSet:(NSSet*)_set
{
SKProductsRequest *request= [[SKProductsRequest alloc] initWithProductIdentifiers: _set];
request.delegate = self;
[request start];
}
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
{
//setup UI here
}
购买：
- (void) purchase:(SKProduct *)product
{
if (!product || !verified) {
return;
}
SKProductsRequest *request= [[SKProductsRequest alloc] initWithProductIdentifiers: [NSSet setWithObject:product.productIdentifier]];
request.delegate = self;
[request start];
}
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{
if ([SKPaymentQueue canMakePayments] && [response.products count] > 0)
{
NSLogInfo(@"xxxxxxxxx Make payment xxxxxxxxx");
SKPayment *payment = [SKPayment paymentWithProduct:[response.products objectAtIndex:0]];
[[SKPaymentQueue defaultQueue] addPayment:payment];
}
else
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Purchase" message:@"You are not authorized to purchase from AppStore"
delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
[alert show];
[alert release];
}
}
观察员：
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
for (SKPaymentTransaction *transaction in transactions)
{
NSLogInfo(@"updatedTransactions transactionState:%d, productIdentifier:%@",transaction.transactionState,transaction.payment.productIdentifier);
switch (transaction.transactionState)
{
case SKPaymentTransactionStatePurchased:
[self completeTransaction:transaction];
break;
case SKPaymentTransactionStateFailed:
[self failedTransaction:transaction];
break;
case SKPaymentTransactionStateRestored:
[self restoreTransaction:transaction];
default:
break;
}
}
}