Cocos2dx 3.2 maybe you meant: _OBJC_CLASS_$_GCControllerConnectionEventHandler
错误信息:Undefinedsymbolsforarchitecturearmv7s:"_GCControllerDidDisconnectNotification",referencedfrom:-[GCControllerConnectionEventHandlerobserverConnection:disconnection:]inlibcocos2dxiOS.a(CCController