AAssetManager读取Asset文件注意事项头文件不能少。 cmakelists.txt文件需要添加androi

头文件不能少。
#include <android/asset_manager_jni.h>
#include <android/asset_manager.h>
cmakelists.txt文件需要添加android这个lib,参考log-lib的套路。

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)
find_library( # Sets the name of the path variable.
        android-lib
        # Specifies the name of the NDK library that
        # you want CMake to locate.
        android)

# 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.
        native-lib
        ${android-lib}
        # Links the target library to the log library
        # included in the NDK.
        ${log-lib})

Abort message: 'art/runtime/java_vm_ext.cc:410] JNI DETECTED ERROR IN APPLICATION: jfieldID long android.content.res.AssetManager.mObject not valid for an object of xxxxxxx ... 如果遇到这个错误。

Java_com_example_liu_jnilearning_MainActivity_stringFromJNI(
        JNIEnv *env,
        void* reserved, // 加上这个
        jobject assetManager,
        jstring name,
        jobject /* this */) {
            //...
        }

参考
stackoverflow.com/questions/1…