您需要使自己成为委托并处理onSocket:willDisconnectWithError:方法.该连接是完全异步的，因此，除非存在根本的系统问题(禁用了套接字，您传递了无效的地址等)，否则该调用将始终成功，而套接字连接尝试将在后台进行.

You need to make yourself the delegate and handle the onSocket:willDisconnectWithError: method. The connection is entirely async so unless there is a fundamental system problem (sockets are disabled, you passed in an invalid address, etc) then that call will always succeed while the socket connection attempt happens in the background.

如果该尝试失败，则将调用onSocket:willDisconnectWithError:委托方法，以便您可以知道连接尝试失败.

If that attempt fails, the onSocket:willDisconnectWithError: delegate method will get called so you can know the connection attempt failed.

我不确定为什么，但是AsyncSocket类认为kCFStreamStatusError流状态为已连接"，因此我怀疑这就是为什么它显示为已连接.您可以在AsyncSocket的源代码中关注所有这一切.

I'm not sure why but the AsyncSocket class considers the kCFStreamStatusError stream status to be "connected" so I suspect that is why it shows up as connected. You can follow all this in the source of AsyncSocket.