项目中需要使用libheif,libde265,libyuv。一下是相应的cmakelist.txt。这里直接使用了静态库。 里面涉及到c++包的链接，需要stdc++。
${PROJECT_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/liblibde265.a这个路径由于操作过程中copy出现问题，多了一层路径，消耗了很多时间。哎，永远不知道会出现什么莫名的问题。
# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html# Sets the minimum version of CMake required to build the native library.cmake_minimum_required(VERSION 3.22.1)# Declares and names the project.project("myLL")# 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.
include_directories(${PROJECT_SOURCE_DIR}/../include)add_library(libheifSTATICIMPORTED)set_target_properties( # Specifies the target library.libheif# Specifies the parameter you want to define.PROPERTIES IMPORTED_LOCATION# Provides the path to the library you want to import.${PROJECT_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libheif.a)message("PROJECT_SOURCE_DIR: ${PROJECT_SOURCE_DIR}")
message("ANDROID_ABI: ${ANDROID_ABI}")add_library(libde265STATICIMPORTED)set_target_properties( # Specifies the target library.libde265# Specifies the parameter you want to define.PROPERTIES IMPORTED_LOCATION# Provides the path to the library you want to import.${PROJECT_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/liblibde265.a)add_library(libyuvSTATICIMPORTED)set_target_properties( # Specifies the target library.libyuv# Specifies the parameter you want to define.PROPERTIES IMPORTED_LOCATION# Provides the path to the library you want to import.${PROJECT_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libyuv.a)#[[
add_library( # Sets the name of the library.heif_jni# Sets the library as a shared library.SHARED# Provides a relative path to your source file(s).heif_jni.cpp)
]]set( source_dir ${CMAKE_CURRENT_SOURCE_DIR} )
set( headers${source_dir}/nativelib.h${PROJECT_SOURCE_DIR}/../include/libheif/heif.h${PROJECT_SOURCE_DIR}/../include/libheif/heif_cxx.h${PROJECT_SOURCE_DIR}/../include/libheif/heif_items.h${PROJECT_SOURCE_DIR}/../include/libheif/heif_plugin.h${PROJECT_SOURCE_DIR}/../include/libheif/heif_properties.h${PROJECT_SOURCE_DIR}/../include/libheif/heif_version.h
)set( sources${source_dir}/nativelib.c${source_dir}/nativelib_jni.c
)add_library( # Sets the name of the library.myLL# Sets the library as a shared library.SHARED# Provides a relative path to your source file(s).${sources} ${headers} )# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.find_library( # Sets the name of the path variable.log-lib# Specifies the name of the NDK library that# you want CMake to locate.log )# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.target_link_libraries( # Specifies the target library.myLLlibheiflibde265libyuvjnigraphics# Links the target library to the log library# included in the NDK.${log-lib}stdc++#[[ heif_jni]])···
