Android has a problem to communicate with the server, iOS is working fine #7579

9 Answer(s)

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  0

  maliming created 5 years ago

  Support Team

  What is your product version?

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  0

  cictan created 5 years ago

  7.1

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  0

  alper created 5 years ago

  Support Team

  Does it work when you use your local API? like localhost:5000 it may be related to your server with HTTP2 configuration just try it with your local environment and tell us the result.

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  0

  cictan created 5 years ago

  It doesn't work when I use my local API, iOS project is working fine when using local API. Here is the error message:

  I can see the host is running through browser by accessing this page: http://127.0.0.1:5000/Ui/Login

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  0

  alper created 5 years ago

  Support Team

  sorry my fault! the address 127.0.0.1 or localhost is not right. Try using your localhost real IP like 192.168.1.22....

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  0

  cictan created 5 years ago

  Hi Alper, Yes, it's working now. I can run my android project on a simulator, can you tell me how fix the connection issue to my remote server? I'd like to use our production url/server url for the APIs. Thanks,

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  0

  alper created 5 years ago

  Support Team

  it connects to your local development environment, so it means there's a problem with the PROTOCOL of the server. can you switch to HTTP to check if there's an issue with the SSL.

  Use ;

  private const string DefaultHostUrl = "http://dobany.com/";
  

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  0

  alper created 5 years ago

  Support Team

  Other solution, probably better one... Use AndroidClientHandler class as your HttpMessageHandler for Android platform. You can use the implementation below;

  ModernHttpClientFactory.cs | Project: MyProject.Application.Client

  public class ModernHttpClientFactory : DefaultHttpClientFactory
      {
          /// <summary>
          /// Callback function for refresh token is expired
          /// </summary>
          public Func<Task> OnSessionTimeOut { get; set; }
  
          /// <summary>
          /// Callback function for access token refresh
          /// </summary>
          public Func<string, Task> OnAccessTokenRefresh { get; set; }
  
          public Func<HttpMessageHandler> CustomHandler { get; set; }
  
          public override HttpMessageHandler CreateMessageHandler()
          {
              HttpMessageHandler httpMessageHandler;
  
              if (CustomHandler != null)
              {
                  httpMessageHandler = CustomHandler();
              }
              else
              {
                  httpMessageHandler = new NativeMessageHandler
                  {
                      AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
                  };
              } 
  
              return new AuthenticationHttpHandler(httpMessageHandler)
              {
                  OnSessionTimeOut = OnSessionTimeOut,
                  OnAccessTokenRefresh = OnAccessTokenRefresh
              };
          }
      }
  

  ---

  SplashActivity.cs | Project: MyProject.Mobile.Droid

          private static void ConfigureFlurlHttp()
          {
              var modernHttpClientFactory = new ModernHttpClientFactory
              {
                  OnSessionTimeOut = App.OnSessionTimeout,
                  OnAccessTokenRefresh = App.OnAccessTokenRefresh,
                  CustomHandler = () => new Xamarin.Android.Net.AndroidClientHandler()
              };
  
              FlurlHttp.Configure(c =>
              {
                  c.HttpClientFactory = modernHttpClientFactory;
              });
          }
  

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  0

  cictan created 5 years ago

  Hi Alper, Both worked finally! Thanks,

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