在 Xamarin Forms 中使用 WCF 服务

大佬教程收集整理的这篇文章主要介绍了在 Xamarin Forms 中使用 WCF 服务，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

如何解决在 Xamarin Forms 中使用 WCF 服务？

开发过程中遇到在 Xamarin Forms 中使用 WCF 服务的问题如何解决？下面主要结合日常开发的经验，给出你关于在 Xamarin Forms 中使用 WCF 服务的解决方法建议，希望对你解决在 Xamarin Forms 中使用 WCF 服务有所启发或帮助；

我希望通过基于 this sample code 的 Xamarin Form 连接到 WCF 服务（在 windows PC 上运行）。 我成功地找到并创建了指向 WCF 的连接服务。并且我采用了之前在 UWP 环境中使用的相同方法。

但是一旦我调用了服务中公开的任何方法，我就会在 AndroID 环境中得到这个异常。 The method or operation is not implemented

我不使用 PCL 风格，而是 .net 方式。

这里是异常的堆栈跟踪。

  at System.serviceModel.ChAnnels.bindingContext.buildInnerChAnnelFactorY[TChAnnel] () [0x00007] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/BindingContext.cs:149 
  at System.serviceModel.ChAnnels.bindingElement.buildChAnnelFactorY[TChAnnel] (System.serviceModel.ChAnnels.bindingContext context) [0x0000e] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/BindingElement.cs:52 
  at System.serviceModel.ChAnnels.binarymessageEnCodingBindingElement.buildChAnnelFactorY[TChAnnel] (System.serviceModel.ChAnnels.bindingContext context) [0x0000e] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/BinarymessageEnCodingBindingElement.cs:94 
  at System.serviceModel.ChAnnels.bindingContext.buildInnerChAnnelFactorY[TChAnnel] () [0x00007] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/BindingContext.cs:149 
  at System.serviceModel.ChAnnels.binding.buildChAnnelFactorY[TChAnnel] (System.serviceModel.ChAnnels.bindingParameterCollection parameters) [0x0000e] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/Binding.cs:133 
  at System.serviceModel.ChAnnelFactory.CreateFactory () [0x000be] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/ChAnnelFactory.cs:202 
  at System.serviceModel.ChAnnelFactory.onopening () [0x00006] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/ChAnnelFactory.cs:383 
  at System.serviceModel.ChAnnels.CommunicationObject.Processopening () [0x00017] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/CommunicationObject.cs:276 
  at System.serviceModel.ChAnnels.CommunicationObject.open (System.TimeSpan timeout) [0x00000] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/CommunicationObject.cs:169 
  at System.serviceModel.ChAnnels.CommunicationObject.open () [0x00000] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel.ChAnnels/CommunicationObject.cs:164 
  at System.serviceModel.ChAnnelFactory.EnsureOpened () [0x0004c] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/ChAnnelFactory.cs:297 
  at System.serviceModel.ChAnnelFactory`1[TChAnnel].CreateChAnnel () [0x00000] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/ChAnnelFactory_1.cs:108 
  at System.serviceModel.DuplexClIEntBase`1[TChAnnel].CreateChAnnel () [0x00000] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/DuplexClIEntBase.cs:123 
  at System.serviceModel.ClIEntBase`1[TChAnnel].get_InnerChAnnel () [0x00008] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/ClIEntBase.cs:186 
  at System.serviceModel.ClIEntBase`1[TChAnnel].get_ChAnnel () [0x00000] in /Users/builder/jenkins/workspace/archive-mono/2020-02/androID/release/mcs/class/System.serviceModel/System.serviceModel/ClIEntBase.cs:192 
  at AppMobileservice.AppMobileCommandHandlerClIEntBase.SubscribeAsync (System.String name,AppMobileservice.AppMobileConnectionType connectionTypE) [0x00001] in C:\Users\adm\Desktop\AppMobilePortable\AppMobilePortable\AppMobilePortable\Connected services\AppMobileservice\Reference.cs:945 
  at PortableAppMobile.services.AppMobileClIEntservice.Connect () [0x00024] in C:\Users\adm\Desktop\AppMobilePortable\AppMobilePortable\AppMobilePortable\service\AppMobileClIEntservice.cs:136  ```

解决方法

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