我在我的iOS应用程序中集成了payU资金 . 除了一件事，一切都很好 . 每当我从payU money页面返回时，将删除存储在UserDefaults中的所有值 . 我正在使用此代码 .
func startPaymentFlow() -> Void {
UserDefaults.standard.set( "test" , forKey: "test")
Toast(text:"Please wait.... Generating hash from server").show()
let paymentVC : PUMMainVController = PUMMainVController()
var paymentNavController : UINavigationController;
paymentNavController = UINavigationController(rootViewController: paymentVC)
self.present(paymentNavController, animated: true, completion: nil)
}
func transactionCompleted(withResponse response : NSDictionary,errorDescription error:NSError) -> Void {
self.dismiss(animated: true){
self.showAlertViewWithTitle(title: "Message", message: "congrats! Payment is Successful")
self.Status = "1"
self.MobilePaymentUpdateApi()
}
}
func transactinFailed(withResponse response : NSDictionary,errorDescription error:NSError) -> Void {
self.dismiss(animated: true){
self.showAlertViewWithTitle(title: "Message", message: "Oops!!! Payment Failed")
self.Status = "-1"
self.MobilePaymentUpdateApi()
}
}
func transactinCanceledByUser() -> Void {
print(UserDefaults.standard.value(forKey: "test") as! String)
self.dismiss(animated: true){
self.showAlertViewWithTitle(title: "Message", message: "Payment Cancelled ")
self.Status = "-1"
print(self.Status)
self.MobilePaymentUpdateApi()
}
}
在执行之后得到这个
self.present(paymentNavController, animated: true, completion: nil)
*** - [NSKeyedUnarchiver initForReadingWithData：]：数据为NULL