Xamarin Watch - 使用 Web 服务 (Android)

Question

我正在尝试从我的 android 手表调用网站，但线程退出（线程 0x5 已退出，代码 0 (0x0)）没有结果。 我添加了权限“Internet”和“Network_state”，这不会改变结果。在我的代码下方（在 Tizen 和纯 Xamarin 中完成）：

protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);
        SetContentView(Resource.Layout.activity_main);

        textView = FindViewById<TextView>(Resource.Id.text);
        Button mybtn = FindViewById<Button>(Resource.Id.btnCal);
        SetAmbientEnabled();

        try
        {
            mybtn.Click += delegate
            {
                Task<string> callTask = calculateRoute();
                callTask.Wait();
                string astr = callTask.Result;
            };
        }
        catch (Exception ex)
        {
            string tt = ex.ToString();
        }
    }

    private async Task<string> calculateRoute()
    {
        HttpClient client;
        try
        {
            String RestUrl = "https://www.google.com";
            var uri = new Uri(string.Format(RestUrl, string.Empty));

            client = new System.Net.Http.HttpClient();

            var response = await client.GetAsync(uri);
            var content = await response.Content.ReadAsStringAsync();

            return content;
        }
        catch (Exception ex)
        {
            string tt = ex.ToString();
            return "";
        }
    }

你有什么想法吗？

谢谢，杰彭

Answer 1

经过大量研究，我找到了解决方案，感谢：https://github.com/Samsung/Tizen-CSharp-Samples/tree/master/Wearable

为应用授予以下权限：

<privilege>http://tizen.org/privilege/internet</privilege>
<privilege>http://tizen.org/privilege/network.get</privilege>
<privilege>http://tizen.org/privilege/download</privilege>

C#代码

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.google.lu");

               //get the data
                request.Method = "GET";
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();

                string tt = ((HttpWebResponse)response).StatusDescription + "\n";
                // Get the stream containing content returned by the server.
                Stream dataStream = response.GetResponseStream();
                // Open the stream using a StreamReader for easy access.
                StreamReader reader = new StreamReader(dataStream);
                // Read the content.
                string responseFromServer = reader.ReadToEnd();

快乐的编码，杰彭