objective-c - 如何在ios5中进行应用内购买？

Question

我已使用以下代码进行应用内购买。

- (void)viewDidLoad {
if ([SKPaymentQueue canMakePayments]) {
    NSLog(@"Can Buy Product");

    SKProductsRequest *productRequest=[[SKProductsRequest alloc]initWithProductIdentifiers:[NSSet setWithObject:@"com.mycompany.myproduct.productpack"]];
    productRequest.delegate=self;
    [productRequest start];
}
else {

    NSLog(@"Product Can't be purchased");
}
}

-(IBAction)purchasePack1 {

SKPayment *payment=[SKPayment paymentWithProductIdentifier:@"com.mycompany.myproduct.productpack"];
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
[[SKPaymentQueue defaultQueue] addPayment:payment];

}


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

validProduct=nil;
int count=[response.products count];
if (count>0) {
    NSLog(@"Product Avail");

    validProduct=[response.products objectAtIndex:0];
}
else {
    NSLog(@"No Product avail");
    [purchaseBtn setHidden:TRUE];
}
}


-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {

for (SKPaymentTransaction *transaction in transactions) {
    switch (transaction.transactionState) {
        case SKPaymentTransactionStatePurchasing:
            NSLog(@"Purchasing");   
            [activityIndicatorObj setHidden:FALSE];
            [activityIndicatorObj startAnimating];
            break;

        case SKPaymentTransactionStatePurchased:

            UIAlertView *alt=[[UIAlertView alloc]initWithTitle:@"Congrats" message:@"Thanks For Purchasing " delegate:self cancelButtonTitle:@"Dismiss" otherButtonTitles:nil];
            [alt show];
            [alt release];
            NSLog(@"Purchased");
            [activityIndicatorObj stopAnimating];
            [activityIndicatorObj setHidden:TRUE];
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
            break;

            case SKPaymentTransactionStateFailed:

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

                NSLog(@"Cancelled");

            }
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

            UIAlertView *alt1=[[UIAlertView alloc]initWithTitle:@"Sorry" message:@"Some Error Encountered!" delegate:self cancelButtonTitle:@"Dismiss" otherButtonTitles:nil];
                [alt1 show];
                [alt1 release];
            NSLog(@"Failed");
            [activityIndicatorObj stopAnimating];
            [activityIndicatorObj setHidden:TRUE];
            break;

            case SKPaymentTransactionStateRestored:
            NSLog(@"Restored");
            [activityIndicatorObj stopAnimating];
            [activityIndicatorObj setHidden:TRUE];
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
            break;



        default:
            break;
    }
}
}

当我点击购买按钮时，我收到一条警告消息“您已经购买了该产品但尚未下载，是否要下载？”当我单击"is"时，我没有从 App 收到任何响应，而且我确定该产品尚未下载。谁能告诉我对这个问题的建议。提前致谢。

Answer 1

我没有看到 - (void)provideContent:(NSString *)productId 的任何实现 - 你错过了那部分吗？在任何情况下，当 transactionState 也变为 SKPaymentTransactionStatePurchased 时，您应该会收到通知。

您可能想看看 in-app 上的 Ray Wenderlich tut如果您还没有购买，它将帮助您设置一个应用程序内管理器类。我认为您已将应用程序内逻辑放在 View Controller 中 - 最好将该部分留在单独的类中。所以应用内管理器/助手 :-)