Eclipse的ADT＆QUOT; ...无法解析＆QUOT;与Android NDK和C文件 [英] Eclipse ADT "... could not be resolved" with Android NDK and C files

问题描述

我有Eclipse的索引我的NDK项目的问题。还有很多类似的线程在那里，但没有，似乎触及问题的同一来源的。我有一个OpenGL ES的应用程序，我需要在端口到Android纯粹用C，我想作为一个NativeActivity的，preferably无连接到它的Java运行用。在code编译正常使用 NDK的构建大量重写后，但在IDE中有很多误区，如键入GLfloat 无法解析。一个APK被产生，我可以亚行和所有安装它，但我希望能够使用IDE，特别是用于调试。

如果我选择了线的上下文菜单打开宣言，如的#include＆LT; GLES2 / gl2.h＆GT; 然后Eclipse是能够显示文件我看到的 GLfloat 的定义是有，但我没有得到任何信息，而悬停在任何在该文件中，所以我猜索引只是跳过它以某种方式？头在Android NDK目录下的文件不被索引就好了，比如那些在 JNI 文件夹和子文件夹如 JNI / PNG 。我有 NDKROOT 在根定义的C / C ++编译 - ＆GT;环境，与自身能力的项目并使用CDT视图。

一件事我注意到的是，当我成立了项目最初我该索引提供了Android的NDK的信息没问题的.cpp 文件，但只要我把它改成 .C 错误开始出现。我是IM pression认为Android NDK是供C使用只有基本的C ++的支持，但在样品中环顾四周，这样我就看到一堆的.cpp 文件，所以我很困惑。我试过设置 LOCAL_CPP_EXTENSION + = .C 在我的 Android.mk ，但造成的Eclipse构建过程中挂起。我没有尝试过的最后一件事是重命名所有的文件，所以他们可以得到一个C ++编译器编译，而不是，但我不明白为什么这应该是必要的，我有一些像zlib的第三方库包括源，我会而不甘示弱用。

Android.mk

  LOCAL_PATH：= $（叫我-DIR）包括$（CLEAR_VARS）定义所有-CPP-文件 - 下
$（patsubst ./%，％，\\
    $（壳CD $（LOCAL_PATH）; \\
        找到$（1）-name* .c在 - 和 - 不是-name*）\\
）
endefLOCAL_MODULE：= MyProject的
LOCAL_SRC_FILES：= $（调用所有-CPP-文件 - 下。）
LOCAL_LDLIBS：= -llog -landroid -lEGL -lGLESv2 -lOpenSLES
LOCAL_STATIC_LIBRARIES：= android_native_app_glue
LOCAL_C_INCLUDES + = $（LOCAL_PATH）/杨松
LOCAL_C_INCLUDES + = $（LOCAL_PATH）/ zlib的
LOCAL_C_INCLUDES + = $（LOCAL_PATH）/ PNG包括$（BUILD_SHARED_LIBRARY）$（呼叫进口模块，机器人/ native_app_glue）
 

Application.mk

  APP_PLATFORM：= Android的9
APP_ABI：= ALL
 




解决方案

这可能是不解决问题的正确方法，但你可以找到文件 $ {WORKSPACE_LOC} /。元/ .plugins / com.android.ide.eclipse.ndk / $ {} ProjName .pathinfo 。它是一个文本文件，在简单格式。首先，尝试删除该文件，并重建项目。如果这没有帮助，你可以添加

<$p$p><$c$c>i,d:/android/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/$p$pbuilt/windows/lib/gcc/arm-linux-androideabi/4.6/include
i,d:/android/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/$p$pbuilt/windows/lib/gcc/arm-linux-androideabi/4.6/include-fixed
I，D：/ Android的/ Android的NDK-R9 /平台/ Android的14 /弓臂/ usr / include目录

手动（上面的例子是Windows）。

更新一个更好的解决办法是建立ADT一起工作的索引的正确，看的 Android NDK构建，方法无法解析 或 Eclipse编译成功，但仍给语义错误 的

I am having problems with the Eclipse indexer for my NDK project. There's a lot of similar threads out there but none that seem to touch on the same source of problems. I have an OpenGL ES application that I need to port over to Android written purely in C that I'd like to run as a NativeActivity, preferably having no Java attached to it. The code compiles fine using ndk-build after a lot of rewriting, but from the IDE there's a lot of errors such as Type 'GLfloat' could not be resolved. An APK gets produced and I can install it with adb and all, but I want to be able to use the IDE, especially for debugging.

If I choose 'Open Declaration' in the context menu for a line such as #include <GLES2/gl2.h> then Eclipse is able to display the file and I see the GLfloat definition is there but I get no info while hovering over anything in that file so I guess the indexer just skips it somehow? Header files not in the Android NDK directory get indexed just fine, such as those in the jni folder and subfolders like jni/png. I have NDKROOT root defined under C/C++ Build -> Environment, a project with native capabilities and using the CDT view.

One thing I noticed was that when I set up the project initially I had a .cpp file which the indexer had no problem providing Android NDK information for, but as soon as I changed it to .c the errors started appearing. I am under the impression that the Android NDK is made for use with C with only basic C++ support but looking around in the samples and such I just see a bunch of .cpp files so I am confused. I've tried setting LOCAL_CPP_EXTENSION += .c in my Android.mk but that caused Eclipse to hang during build. The last thing I haven't tried is renaming all the files so they get compiled with a C++ compiler instead but I don't see why this should be necessary and I have some third-party libraries like zlib included by source that I'd rather not fiddle with.

Android.mk

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

define all-cpp-files-under
$(patsubst ./%, %, \
    $(shell cd $(LOCAL_PATH) ; \
        find $(1) -name "*.c" -and -not -name ".*") \
)
endef

LOCAL_MODULE    := MyProject
LOCAL_SRC_FILES := $(call all-cpp-files-under, .)
LOCAL_LDLIBS := -llog -landroid -lEGL -lGLESv2 -lOpenSLES
LOCAL_STATIC_LIBRARIES := android_native_app_glue
LOCAL_C_INCLUDES += $(LOCAL_PATH)/jansson
LOCAL_C_INCLUDES += $(LOCAL_PATH)/zlib
LOCAL_C_INCLUDES += $(LOCAL_PATH)/png

include $(BUILD_SHARED_LIBRARY)

$(call import-module,android/native_app_glue)

Application.mk

APP_PLATFORM := android-9
APP_ABI := all

解决方案

This may is not be the right way to fix the problem, but you can find the file ${WORKSPACE_LOC}/.metadata/.plugins/com.android.ide.eclipse.ndk/${ProjName}.pathinfo. It is a text file, in simple format. To begin with, try to delete this file, and rebuild the project. If this does not help, you can add

i,d:/android/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/lib/gcc/arm-linux-androideabi/4.6/include
i,d:/android/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/windows/lib/gcc/arm-linux-androideabi/4.6/include-fixed
i,D:/Android/android-ndk-r9/platforms/android-14/arch-arm/usr/include

manually (the example above is for Windows).

Update a better workaround is to set up ADT to work with indexer correctly, see Android NDK build, Method could not be resolved or Eclipse compiles successfully but still gives semantic errors.

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