Question

我现在的问题是如何在付款成功后保存回复。我尝试过以下方法：

func transactionCompleted(withResponse response : NSDictionary,errorDescription error:NSError) -> Void {
     self.dismiss(animated: true){
        self.showAlertViewWithTitle(title: "Message", message: "congrats! Payment is Successful")
     }
}

func transactinFailed(withResponse response : NSDictionary,errorDescription error:NSError) -> Void {
      self.dismiss(animated: true){
          self.showAlertViewWithTitle(title: "Message", message: "Oops!!! Payment Failed"                    
      }
}

但它无法调用以下函数

 var restURL = URL(string: "https://test.payu.in/_payment")
    req = NSMutableURLRequest(url: restURL!, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 60.0)
    req.httpMethod = "POST"
    var hashValue = "\(KEY_TEST)|\(transactionId)|\(Amount)|\(productInfo)|\(firstName)|\(emailID)|\(udf1)|\(udf2)|\(udf3)|\(udf4)|\(udf5)||||||\(SALT_TEST)"


    let strPaymentHash = sha1(string: hashValue)




        post = "key=\("\(KEY_TEST)")&amount=\("\(Amount)")&productinfo=\("\(productInfo)")&firstname=\("\(firstName)")&email=\("\(emailID)")&udf1=\("\(udf1)")&udf2=\("\(udf2)")&udf3=\("\(udf3)")&udf4=\("\(udf4)")&udf5=\("\(udf5)")&surl=\("\(SURL)")&furl=\("\(FURL)")&phone=\("\(PHONE)")&hash=\("\(strPaymentHash)")&txnid=\("\(transactionId)")"
    print("Post",post)

    self.req.setValue("application/x-www-form-urlencoded; charset=utf-8", forHTTPHeaderField:"Content-Type")
    self.req.httpBody = post.data(using: .utf8)

    webView_guide.load(req as URLRequest)

}

Answer 1

我看到你在解雇完成区内调用self，这通常是一种不好的做法。

在取消View Controller后执行完成块。这意味着您的视图不再出现在屏幕上。我想你想在那个视图中渲染你的警报视图，这是不可能的，因为它不在屏幕上。

您可以将事件从呈现的控制器委派给父级，并使用委托模式处理它。 Swift是面向委托/协议模式的。

为谁来处理付款响应创建一个界面，例如：

protocol MyTransactionDelegate {
    func transactionDidFinish(completed: Bool, response: NSDictionary, error: NSError)
}

添加 presentsViewController 对 parentViewController 的引用：

class PresentedViewController {
    weak myDelegate: MyTransactionDelegate?
}

parentViewController 符合MyTransactionDelegate协议，当它出现 presentsViewController 时，将其自身设置为其委托。

最后要做的是将方法更改为：

func transactionCompleted(withResponse response : NSDictionary,errorDescription error:NSError) -> Void {
    self.delegate?.transactionDidFinish(completed: true, response: response, error: error)
    self.dismiss(animated: true)
}

func transactionFailed(withResponse response : NSDictionary,errorDescription error:NSError) -> Void {
    self.delegate?.transactionDidFinish(completed: false, response: response, error: error)
    self.dismiss(animated: true)
}

快速4.0中的货币支付集成

1 个答案: