C# SignalR 安卓调用

要在安卓中调用C# SignalR，你需要使用SignalR的Java客户端库。首先，你需要在你的安卓项目中添加SignalR的依赖。然后，你可以使用以下代码来连接到SignalR服务器并调用C# SignalR的方法：

import microsoft.aspnet.signalr.client.*;
import microsoft.aspnet.signalr.client.hubs.*;

public class MainActivity extends AppCompatActivity {
    private HubConnection connection;
    private HubProxy hubProxy;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 创建连接
        String serverUrl = "http://your-signalr-server-url";
        connection = new HubConnection(serverUrl);
        hubProxy = connection.createHubProxy("your-hub-name");

        // 注册回调方法
        hubProxy.on("your-client-method", new SubscriptionHandler() {
            @Override
            public void run() {
                // 处理服务器发送的消息
                String message = (String) getArguments()\[0\];
                Log.d("SignalR", "Received message: " + message);
            }
        }, String.class);

        // 连接到服务器
        SignalRFuture<Void> future = connection.start();
        try {
            future.get();
            Log.d("SignalR", "Connected to server");
        } catch (InterruptedException | ExecutionException e) {
            e.printStackTrace();
        }

        // 调用服务器方法
        hubProxy.invoke("your-server-method", "parameter1", "parameter2")
                .done(new Action<Void>() {
                    @Override
                    public void run(Void aVoid) throws Exception {
                        Log.d("SignalR", "Server method invoked successfully");
                    }
                }).onError(new ErrorCallback() {
            @Override
            public void onError(Throwable throwable) {
                Log.e("SignalR", "Error invoking server method: " + throwable.getMessage());
            }
        });
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        // 断开连接
        connection.stop();
    }
}

在上面的代码中，你需要将`your-signalr-server-url`替换为你的SignalR服务器的URL，`your-hub-name`替换为你的Hub的名称，`your-client-method`替换为你在C# SignalR中定义的客户端方法的名称，`your-server-method`替换为你在C# SignalR中定义的服务器方法的名称。你还可以根据需要修改回调方法的逻辑。

这样，你就可以在安卓应用中调用C# SignalR了。
#### 引用[.reference_title]
- *1* *2* [C# 使用SignalR实现消息通知](https://blog.csdn.net/READLEAF/article/details/129835167)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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