ios-swift,objective-c协议实现

这是我试图实现的对象代理

@protocol SRWebSocketDelegate <NSObject>

// message will either be an Nsstring if the server is using text
// or NSData if the server is using binary.
- (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id)message;

@optional

- (void)webSocketDidOpen:(SRWebSocket *)webSocket;
- (void)webSocket:(SRWebSocket *)webSocket didFailWithError:(NSError *)error;
- (void)webSocket:(SRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(Nsstring *)reason wasClean:(BOOL)wasClean;

@end

我希望这是实施它的正确方法;不是…
我得到’SocketDelegate’不符合协议’SRWebSocketDelegate’

class SocketDelegate:UIViewController,SRWebSocketDelegate{
    let socket:SRWebSocket! = SRWebSocket()

    override func loadView() {
        self.socket.delegate = self
    }    

    func didReceiveMessage(message:AnyObject){

    }
}