如何以编程方式关闭ADAuthentication Web视图控制器？
问题描述：
在以编程方式将webveiwcontroller从ADAL中解雇后，我遇到了以下问题，下一次当我重新启动登录流程时，出现以下错误：
I met the following issue after dismiss the webveiwcontroller from ADAL programmably, and next time when I re-launch the sign in flow, I was given the following errors:
error=Error with code: 13 Domain: ADAuthenticationErrorDomain ProtocolCode:(null)
Details:The user is currently prompted for credentials as result of another acquireToken request.
Please retry the acquireToken call later..
Inner error details: Error Domain=ADAuthenticationErrorDomain Code=13
"The operation couldn’t be completed. (ADAuthenticationErrorDomain error 13.)"
如果我完全关闭应用程序并重新打开，登录流程将再次起作用。这是一个已知问题吗？有什么方法可以用来解决此问题？
If I close the app completely and reopen it, the sign in flow works again. Is this a known issue and what could be used to work around this?
谢谢
答
您应该调用ADAuthenticationBroker-> cancel确保所有锁都正确释放。
You should call ADAuthenticationBroker->cancel to make sure all the locks are released correctly.