如何将 Android 项目与 libandroid 与 Cmake 联系起来
How to link Android project against libandroid with Cmake?
所以,我有支持 c++ 的 android 项目。在尝试构建 c++ 代码时,我的项目中有一些未定义的引用,在回答了我的第一个问题之后,这里链接有什么问题,我找不到一种方法来做到这一点。
如果你有看起来像这样的Cmake:
cmake_minimum_required(VERSION 3.4.1)
# OpenCV stuff
include_directories(D:\opencv-3.2.0-android-sdk\OpenCV-android-sdk\sdk\native\jni\include)
add_library( lib_opencv SHARED IMPORTED )
set_target_properties(lib_opencv PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}/libopencv_java3.so)
add_compile_options(-std=c++11)
# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
add_library( # Sets the name of the library.
native-lib
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/native-lib.cpp)
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log )
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in the
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
native-lib
-ljnigraphics
lib_opencv
# Links the target library to the log library
# included in the NDK.
${log-lib} )
只需将部分更改为如下所示:
target_link_libraries( # Specifies the target library.
native-lib
-ljnigraphics
-landroid # Add this.
lib_opencv
# Links the target library to the log library
# included in the NDK.
${log-lib} )
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- 如何将 Android 项目与 libandroid 与 Cmake 联系起来