Question

我正在尝试将本机库导入我的Xamarin Android应用程序。我已经构建了test.so文件，并且我已经包含了相应的Dllopen代码。问题是当我尝试部署应用程序时，我不断收到一个＆＃34; DllImport错误加载库＆＃34;错误抛出。这是完整的错误。

> DllImport attempting to load: 'test'. 07-20 11:07:26.428 D/Mono   
> (11429): DllImport error loading library
> '/storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest':
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest"
> not found'. 07-20 11:07:26.428 D/Mono    (11429): DllImport error
> loading library
> '/storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest.so':
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest.so"
> not found'. 07-20 11:07:26.428 D/Mono    (11429): DllImport error
> loading library '/system/lib/libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//system/lib/libtest"
> not found'. 07-20 11:07:26.428 D/Mono    (11429): DllImport error
> loading library '/system/lib/libtest.so': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//system/lib/libtest.so"
> not found'. 07-20 11:07:26.428 D/Mono    (11429): DllImport error
> loading library 'libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest" not found'.
> 07-20 11:07:26.428 D/Mono    (11429): DllImport error loading library
> 'libtest.so': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest.so" not found'.
> 07-20 11:07:26.428 D/Mono    (11429): DllImport error loading library
> 'test': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/test" not found'. 07-20
> 11:07:26.438 D/Mono    (11429): DllImport error loading library
> '/storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest':
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library
> '/storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest.so':
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest.so"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library '/system/lib/libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//system/lib/libtest"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library '/system/lib/libtest.so': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//system/lib/libtest.so"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library 'libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest" not found'.
> 07-20 11:07:26.438 D/Mono    (11429): DllImport error loading library
> 'libtest.so': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest.so" not found'.
> 07-20 11:07:26.438 D/Mono    (11429): DllImport error loading library
> 'libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest" not found'.
> 07-20 11:07:26.438 W/Mono    (11429): DllImport unable to load library
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest" not found'.
> 07-20 11:07:26.438 D/Mono    (11429): DllImport attempting to load:
> 'test'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error loading
> library
> '/storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest':
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library
> '/storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest.so':
> 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//storage/emulated/0/Android/data/XammarinDemo.XammarinDemo/files/.__override__/libtest.so"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library '/system/lib/libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//system/lib/libtest"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library '/system/lib/libtest.so': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm//system/lib/libtest.so"
> not found'. 07-20 11:07:26.438 D/Mono    (11429): DllImport error
> loading library 'libtest': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest" not found'.
> 07-20 11:07:26.438 D/Mono    (11429): DllImport error loading library
> 'libtest.so': 'dlopen failed: library
> "/data/app/XammarinDemo.XammarinDemo-1/lib/arm/libtest.so" not found'.

我按照此处所述的流程https://developer.xamarin.com/guides/android/advanced_topics/using_native_libraries/进行了操作。我确认libtest.so包含在apk中解压缩它，但似乎android有问题找到.so文件。我该如何解决这个问题？

Answer 1

根据您提到的xamarin文档，您可以使用路径嗅探或项目文件来让链接器知道什么是什么。

现在，路径嗅探并不适用于visual studio。你的dll将放在名为ARM，ARM64等的目录中。路径＆＃39; sniffer＆＃39;期望路径像armeabi，armeabi-v7a等等。您可以更改每个平台的输出路径，也可以更改项目文件。

如果您选择项目文件（应在外部编辑器中手动编辑），结果应如下所示：

<ItemGroup>
<EmbeddedNativeLibrary Include="..\CD.AndroidDll\Release\ARM64\libDemo.so">
  <Link>lib\arm64\libDemo.so</Link>
  <ABI>arm64-v8a</ABI>
  <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</EmbeddedNativeLibrary>
<EmbeddedNativeLibrary Include="..\CD.AndroidDll\Release\ARM\libDemo.so">
  <Link>lib\arm\libDemo.so</Link>
  <ABI>armeabi-v7a</ABI>
  <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</EmbeddedNativeLibrary>
<EmbeddedNativeLibrary Include="..\CD.AndroidDll\Release\x64\libDemo.so">
  <Link>lib\x64\libDemo.so</Link>
  <ABI>x86_64</ABI>
  <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</EmbeddedNativeLibrary>
<EmbeddedNativeLibrary Include="..\CD.AndroidDll\Release\x86\libDemo.so">
  <Link>lib\x86\libDemo.so</Link>
  <ABI>x86</ABI>
  <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</EmbeddedNativeLibrary>
<None Include="Resources\AboutResources.txt" />

唯一的问题是armeabi vs armeabi-v7a。似乎应用程序没有查看armeabi-v7a设备上的armeabi文件夹。如果将两个ABI定义添加到同一链接库，则仅使用第二个。你也不能两次链接同一个文件。

您唯一的选择是制作库的手动副本并添加它。或者只是完全离开armeabi。毕竟，现在很难找到一台不支持armeabi-v7a的设备。

Xamarin Android：错误包括应用程序

1 个答案: