使用 ArcGIS Runtime 在 iOS 上的 Xamarin Forms 中使用热重启的 EntryPointNotFoundException

问题描述

我在 Visual Studio 中为 iOS 创建了一个新的 Xamarin Forms 应用程序，并在引用 ArcGIS 运行时的 AppDelegate.cs 中添加了以下代码。

public override bool FinishedLaunching(UIApplication app,NSDictionary options)
{
  global::Xamarin.Forms.Forms.Init();
  LoadApplication(new App());

  Esri.ArcGISRuntime.ArcGISRuntimeEnvironment.Initialize();

  return base.FinishedLaunching(app,options);
}

这是我在 Initialize 方法中得到的错误。

[0:] An error occurred: 'CoreRT_ArcGISRuntimeEnvironment_setInstallDirectory assembly:<unknown assembly> type:<unknown type> member:(null)'. Callstack: '  at (wrapper managed-to-native) RuntimeCoreNet.GeneratedWrappers.CoreArcGISRuntimeEnvironment.CoreRT_ArcGISRuntimeEnvironment_setInstallDirectory(byte[],intptr&)
  at RuntimeCoreNet.GeneratedWrappers.CoreArcGISRuntimeEnvironment.SetInstallDirectory (System.String installPath) <0x138775060 + 0x00010> in <2a33546a5b934b588629d4e33895c554>:0 
  at Esri.ArcGISRuntime.ArcGISRuntimeEnvironment.InitNative () <0x1387748c8 + 0x00004> in <2a33546a5b934b588629d4e33895c554>:0 
  at Esri.ArcGISRuntime.ArcGISRuntimeEnvironment.Initialize () <0x138774538 + 0x00042> in <2a33546a5b934b588629d4e33895c554>:0 
  at App1.iOS.AppDelegate.FinishedLaunching (UIKit.UIApplication app,Foundation.NSDictionary options) [0x00013] in C:\Users\Chris\Documents\OnScene Xplorer\App1\App1.iOS\AppDelegate.cs:33 
  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args,System.IntPtr principal,System.IntPtr delegate) [0x00005] in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:86 
  at UIKit.UIApplication.Main (System.String[] args,System.String principalClassName,System.String delegateClassName) [0x0000e] in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:65 
  at App1.iOS.Application.Main (System.String[] args) [0x00001] in C:\Users\Chris\Documents\OnScene Xplorer\App1\App1.iOS\Main.cs:17 
  at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
  at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj,System.Reflection.BindingFlags invokeAttr,System.Reflection.Binder binder,System.Object[] parameters,System.Globalization.CultureInfo culture) [0x0006a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/mcs/class/corlib/System.Reflection/RuntimeMethodInfo.cs:395 '

对于每个反射器，它尝试使用 DllImport 调用本地方法。

[DllImport("__Internal")]
private static extern void CoreRT_ArcGISRuntimeEnvironment_setInstallDirectory([In,Out,MarshalAs(UnmanagedType.LPArray)] byte[] installPath,out IntPtr outErrorHandle);

我检查了 iPhone 上的部署文件夹。有一个来自 Nuget 的本机框架，它正在将它移植到 iPhone 上。它似乎是本机调用的目标。在我的 UWP 应用中，2 个 dll（runtimecore.dll 和 runtimecorenet.dll）似乎是本机调用的目标。

[0:] File: /private/var/containers/Bundle/Application/5A23D747-9648-4727-8677-FB4E036F0343/App6.iOS.app/Frameworks/ArcGIS-arm64.framework/_CodeSignature/CodeResources
[0:] File: /private/var/containers/Bundle/Application/5A23D747-9648-4727-8677-FB4E036F0343/App6.iOS.app/Frameworks/ArcGIS-arm64.framework/ArcGIS-arm64
[0:] File: /private/var/containers/Bundle/Application/5A23D747-9648-4727-8677-FB4E036F0343/App6.iOS.app/Frameworks/ArcGIS-arm64.framework/Info.plist

我也在详细构建输出中看到了这一点：

3>MtouchExtraArgs =  --framework:"${ProjectDir}/framework/ArcGIS-arm64.framework" --dynamic-symbol-mode=code

...

3>Task "AssignLinkMetadata" (TaskId:169)
3>  Task Parameter:
3>      Items=
3>          C:\Users\Chris\.nuget\packages\esri.arcgisruntime.runtimes.ios\100.10.0\buildTransitive\Xamarin.iOS10\..\..\framework\ArcGIS-arm64.framework\ArcGIS-arm64
3>                  CopyToOutputDirectory=PreserveNewest
3>                  Link=framework\ArcGIS-arm64.framework\ArcGIS-arm64
3>          C:\Users\Chris\.nuget\packages\esri.arcgisruntime.runtimes.ios\100.10.0\buildTransitive\Xamarin.iOS10\..\..\framework\ArcGIS-arm64.framework\Info.plist
3>                  CopyToOutputDirectory=PreserveNewest
3>                  Link=framework\ArcGIS-arm64.framework\Info.plist (TaskId:169)
3>Done executing task "AssignLinkMetadata". (TaskId:169)

我读到 iOS 中的本机调用是静态的，必须构建/编译到应用程序中。你知道我如何检查这是否正确发生吗？知道这个本地调用出了什么问题吗？

任何帮助将不胜感激。我非常想在没有 Mac 的情况下使用我的 iPhone 来开发这个项目。也不想承诺到Mac然后发现同样的问题！

解决方法

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