Ios Paytm委托问题，由于未设置委托，应用程序崩溃

应用程序正在崩溃，崩溃原因是

“没有委托集？…您将如何进行回调？”

已设置PGTransactionViewController的委托。但它仍然没有调用委托方法

        PGTransactionViewController *txnController = [[PGTransactionViewController alloc]
                                                  initTransactionForOrder:pgOrder];
#if SERVER_PRODUCTION
    txnController.serverType = eServerTypeProduction;
#else
    txnController.serverType = eServerTypeStaging;
#endif

    txnController.merchant = [PGMerchantConfiguration defaultConfiguration];

    // Set the Delegates
    txnController.delegate = self;
    [self.hostViewController.navigationController pushViewController:txnController animated:YES];

---

该类是NSObject的子类。

是否使用这些委托方法

  - (void)didSucceedTransaction:(PGTransactionViewController *)controller
                     response:(NSDictionary *)response
{
    DEBUGLOG(@"ViewController::didSucceedTransactionresponse= %@", response);

}

- (void)didFailTransaction:(PGTransactionViewController *)controller error:(NSError *)error response:(NSDictionary *)response
{
    DEBUGLOG(@"ViewController::didFailTransaction error = %@ response= %@", error, response);

}

- (void)didCancelTransaction:(PGTransactionViewController *)controller error:(NSError*)error response:(NSDictionary *)response
{
    DEBUGLOG(@"ViewController::didCancelTransaction error = %@ response= %@", error, response);

}

- (void)didFinishCASTransaction:(PGTransactionViewController *)controller response:(NSDictionary *)response
{
    DEBUGLOG(@"ViewController::didFinishCASTransaction:response = %@", response);
}

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你遵守协议了吗？是的，我遵守了这个协议。是的，除了最后一个，我使用的是相同的委托方法。在我的代码中，delgate没有调用success和cancelled。在我的情况下，在事务完成后，这些委托调用都没有。成功/失败/取消后不调用任何内容。怎么办？？