ios - mainBundle 上的 appStoreReceiptURL 总是返回 nil

Question

此方法 appStoreReceiptURL 替代了 SKPaymentTransaction 上已弃用的 transactionReceipt 方法。每个人都说只使用这个调用:

NSURL *theURL = [[NSBundle mainBundle] appStoreReceiptURL];

如果有收据，这应该返回一个 url 到收据。但对我来说没有一个，因为这个值是零，据我所知它不应该是。我在 iOS 7 上运行并完成了一些应用内购买(设备上的沙盒)。现在我正在尝试添加另一个应用程序内购买，一个自动续订订阅，我需要深入研究收据以获取订阅到期日期。但我无法通过这个简单的步骤，因为该值始终为零。

有人知道为什么吗？

Answer 1

有点晚了，但可能对某人有用:

-(void) someMethod {
    NSURL *receiptUrl = [[NSBundle mainBundle] appStoreReceiptURL];
    if ([[NSFileManager defaultManager] fileExistsAtPath:[receiptUrl path]])
    {

        NSData *ios7ReceiptData = [NSData dataWithContentsOfURL:receiptUrl];
        //Do stuff

    } else {
        NSLog(@"iOS 7 AppReceipt not found %@, refreshing...",iapID);
        SKReceiptRefreshRequest *refreshReceiptRequest = [[SKReceiptRefreshRequest alloc] initWithReceiptProperties:@{}];
        refreshReceiptRequest.delegate = self;
        [refreshReceiptRequest start];
    }
}

- (void)requestDidFinish:(SKRequest *)request {
    if([request isKindOfClass:[SKReceiptRefreshRequest class]])
    {
        //SKReceiptRefreshRequest
        NSURL *receiptUrl = [[NSBundle mainBundle] appStoreReceiptURL];
        if ([[NSFileManager defaultManager] fileExistsAtPath:[receiptUrl path]]) {
            NSLog(@"App Receipt exists");
            //Do stuff
        } else {
            NSLog(@"Receipt request done but there is no receipt");

            // This can happen if the user cancels the login screen for the store.
            // If we get here it means there is no receipt and an attempt to get it failed because the user cancelled the login.
            //[self trackFailedAttempt];
        }
    }
}

`