RestSharp on Response 不知道如何调用回调

Question

我正在使用 restsharp 从我正在做的 API 中获取数据，我想制作一个名为 "ApiInterface" 的 class，它将在 Xamarin 中使用（ Android、iOS、Windows...) 调用 API.

这个 class 有它的 RestClient 和函数，可以从代码的任何部分调用，因为它是一个单例。

例如，我将有一个 MainActivity.cs 这样的东西。（调用我的 getData 函数并处理我收到的数据）。

Button buttonListaIntereses = FindViewById<Button> (Resource.Id.myButton);

buttonListaIntereses.Click += delegate {
    ApiInterface.Instance.getData(response2=>
    {
        Intent displayMessage = new Intent(this, typeof(DisplayMessage));
        //Put info in Extra for the new screen.
        displayMessage.PutExtra("content", response2.Content);
        StartActivity(displayMessage);
    });
};

但在 API 界面中，我想获取 cookie 等常用数据。

public async void getData(Action <IRestResponse> onDone)
{           
    RestRequest request = new RestRequest("getData", Method.GET);

   //Execute ASYNC the rest request
    m_Client.ExecuteAsync (request, response =>
    {
        //Do my stuff with headers.
        string lCookie = response.Headers.ToList().Find(x => x.Name == "Cookie").Value.ToString();
       //Execute the OnDone
       onDone();
    });
}

我的问题是我不确定如何在 getData 中执行我的 OnDone and/or 如何调用 getData 函数。

谢谢！

Answer 1

Action 参数 onDone 采用 IRestReponse:

类型的参数

public async void getData(Action<IRestResponse> onDone)
{           
    RestRequest request = new RestRequest("getData", Method.GET);

    //Execute ASYNC the rest request
    m_Client.ExecuteAsync (request, response =>
    {
        //Do my stuff with headers.
        string lCookie = response.Headers.ToList().Find(x => x.Name == "Cookie").Value.ToString();

        // Execute the onDone action with the received response
        onDone(response);
    });
}

Answer 2

我会放弃使用回调并利用 C# 的异步/等待功能

buttonListaIntereses.Click += async delegate {
    var response = await ApiInterface.Instance.getData();
    LaunchResponseActivity(response);
};

public void LaunchResponseActivity(IRestResponse response)
{
    Intent displayMessage = new Intent(this, typeof(DisplayMessage));
    //Put info in Extra for the new screen.
    displayMessage.PutExtra("content", response.Content);
    StartActivity(displayMessage);
}

public async Task<IRestResponse> getData()
{           
    RestRequest request = new RestRequest("getData", Method.GET);

    var cancellationTokenSource = new CancellationTokenSource();

    var restResponse = await client.ExecuteTaskAsync(request, cancellationTokenSource.Token);

    //Do my stuff with headers.
    string lCookie = restResponse.Headers.ToList().Find(x => x.Name == "Cookie").Value.ToString();

    return restResponse;
}

RestSharp on Response 不知道如何调用回调

RestSharp on Response dont know how to call callback

c#

restsharp

xamarin