问题描述
我一直在努力为Android NDK构建示例HelloJni示例项目。
我如何设置环境: / p>
我按照开始在文档中的说明进行操作:android-ndk-r10d\docs\Getting_Started / html / index.html:
- 下载的Eclipse Luna
- 下载Android SDK
- 下载Android NDK: android-ndk-r10d
- 在首选项窗口 - > android - > NDK中设置日食中的NDK安装文件夹。 >
- 导入hellp-jni示例
- 右键单击HelloJni项目 - > Android工具 - >添加本机支持。
- 在我的设备上放置HelloJni库(不是测试)
应用程序正在运行,一切都在工作,我可以看到生成的.so文件每个架构的libs文件夹中的项目(对于每个架构,例如armebi,mips等)
这是一个打印屏幕,显示一切正常工作: / p>
现在这里是奇怪的部分...
问题:
如果我打开hello-jni.c文件在eclipse中进行编辑或查看,我突然看到编译错误,我无法构建,也无法再运行该项目...
这是一个打印屏幕,显示我打开文件后,我突然收到编译错误:
我已经尝试过了失败:
- 添加Android Native Nature,然后将其删除:
删除.project文件
buildCommand标签:org.eclipse.cdt.managedbuilde r.core.genmakebuilde,
buildCommand标签:org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder
并删除行:
[nature] org.eclipse.cdt.core。 cnature [/ nature]
[nature] org.eclipse.cdt.core.ccnature [/ nature] [nature] org.eclipse.cdt.managedbuilder.core.managedBuildNature [/ nature] [nature] org.eclipse。 cdt.managedbuilder.core.ScannerConfigNature [/ nature]
删除.cproject和所有编译文件。
然后添加Android Native Nature。
根据这个stackoverflow链接:
这是一个打印屏幕:
失败
- 从项目为他工作的朋友复制eclipse Luna安装。
失败
我已经花了几个小时,我找不到任何解决这个问题的解决方案。
请帮助
FWIW,Eclipse似乎有与 r10d 版本的问题的Android NDK。请参阅。我建议您尝试 r10c 而不是#worksforme:)
I have been trying endlessly to build the sample HelloJni sample project for the Android NDK.
How I set up the environment:
I followed the instructions of the getting started in the docs: android-ndk-r10d\docs\Getting_Started/html/index.html:
- Downloaded Eclipse Luna
- Downloaded the Android SDK
- Downloaded the Android NDK: android-ndk-r10d
- Set the NDK installation folder in eclipse in preferences window -> android -> NDK.
- Imported the hellp-jni sample.
- Right click on the HelloJni Project -> Android tools -> Add native support.
- Cleaned and Built the project.
- Ran on my device the HelloJni library (not the tests)
And the app is running and everything is WORKING and I can see the generated .so file per architecture in the libs folder of the project (for every architecture, for example armebi, mips, etc...)
Here is a Print Screen showing everything is working:
Now here comes the strange part...
The Problem:
If I open the hello-jni.c file for editing or viewing in eclipse, I suddenly see compilation errors and I can't build and can't run the project anymore...
Here is a Print Screen showing that after i open the file, I suddenly get compilation errors:
What I have already tried but failed:
- Adding the Android Native Nature, then removing it by:Deleting the .project file,the buildCommand tag of: org.eclipse.cdt.managedbuilder.core.genmakebuilde,the buildCommand tag of: org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilderand removing the lines:[nature]org.eclipse.cdt.core.cnature[/nature][nature]org.eclipse.cdt.core.ccnature[/nature] [nature]org.eclipse.cdt.managedbuilder.core.managedBuildNature[/nature] [nature]org.eclipse.cdt.managedbuilder.core.ScannerConfigNature[/nature]removing the .cproject and all compiled files.Then adding back the Android Native Nature.
According to this stackoverflow link:Eclipse ADT - Unresolved inclusion jni.h
Failed
- Once I got the error of (I am not getting it anymore): Unable to launch cygpath. Is Cygwin on the path?] java.io.IOException: Cannot run program "cygpath". So I Googled and I changed the build settings to give the absolute path of my NDK installation folder:
According to this stackoverflow link:Unable to launch cygpath in android
Here is a Print Screen:
Failed
- Changing the Used tools from Android GCC Compiler to GCC C Compiler
according to this stackoverflow link:Android NDK build, Method could not be resolved
Here is a Print Screen:
Failed
- Copying an eclipse Luna installation from a friend that has the project working for him.
Failed
I have been spending hours on this and I couldn't find any solution to why this is happening.
PLEASE HELP
FWIW, Eclipse seems to have issues with the r10d version of Android NDK. See https://code.google.com/p/android/issues/detail?id=97023. I suggest you try r10c instead #worksforme :)
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