iOS中WebSocket的使用

https://github.com/square/SocketRocket

簡單使用如下

1.初始化socket
_webSocket = [[SRWebSocket alloc] initWithURLRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"ws://echo.websocket.org"]]];
    
    _webSocket.delegate = self;
    [_webSocket open];
2設置一些協議
#pragma mark - SRWebSocketDelegate
- (void)webSocketDidOpen:(SRWebSocket *)webSocket;
{
    NSLog(@"Websocket Connected");
}

- (void)webSocket:(SRWebSocket *)webSocket didFailWithError:(NSError *)error;
{
    NSLog(@":( Websocket Failed With Error %@", error);
    
    _webSocket = nil;
}

- (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id)message;
{
    NSLog(@"Received \"%@\"", message);
    
    if ([self.delegate respondsToSelector:@selector(recivedWebSocketMessage:)]) {
        [self.delegate recivedWebSocketMessage:message];
    }

}

- (void)webSocket:(SRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean;
{
    NSLog(@"WebSocket closed");
    _webSocket = nil;
}

- (void)webSocket:(SRWebSocket *)webSocket didReceivePong:(NSData *)pongPayload;
{
    NSLog(@"Websocket received pong");
}