Android Studio 中的 JNI 文件夹

我在想什么文件依赖，但它不起作用我的 hello-jni.c 文件包括jstring Java_com_example_testjni2_MainActivity_stringFromJNI (JNIEnv *env, jobject thiz){return (*env)->NewStringUTF(env, "Hello from JNI !");}我的 MainActivity 文件包含public class MainActivity extends Activity {静止的 {System.loadLibrary("hello-jni");}公共本机字符串 stringFromJNI();@覆盖protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);字符串文本 = stringFromJNI();Log.i("MainActivity", text);}@覆盖公共布尔 onCreateOptionsMenu(菜单菜单){//给菜单充气；如果它存在，这会将项目添加到操作栏.getMenuInflater().inflate(R.menu.main, menu);返回真；}}我的 Android.mk 文件包含LOCAL_PATH := $(call my-dir)包括 $(CLEAR_VARS)LOCAL_MODULE := hello-jniLOCAL_SRC_FILES := hello-jni.c包括 $(BUILD_SHARED_LIBRARY)请告诉我，我哪里会出错.Android Studio 0.1.7操作系统 - Windows 7 x64 解决方案 gradle 构建系统目前不支持捆绑本地库.检查 https://groups.google.com/d/msg/adt-dev/nQobKd2Gl_8/Z5yWAvCh4h4J 对于一些需要添加到 build.gradle 的自定义任务.请注意，这是 gradle 支持构建原生项目之前的临时解决方法.I am trying make helloy-jni app in Android Studio and I have exception06-27 13:17:19.099 12714-12714/com.example.testjni2 E/AndroidRuntime: FATAL EXCEPTION: main java.lang.ExceptionInInitializerError at java.lang.Class.newInstanceImpl(Native Method) at java.lang.Class.newInstance(Class.java:1319) at android.app.Instrumentation.newActivity(Instrumentation.java:1071) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2166) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2299) at android.app.ActivityThread.access$700(ActivityThread.java:154) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1284) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5306) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.UnsatisfiedLinkError: Couldn't load hello-jni from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.example.testjni2-1.apk,libraryPath=/data/app-lib/com.example.testjni2-1]: findLibrary returned null at java.lang.Runtime.loadLibrary(Runtime.java:365) at java.lang.System.loadLibrary(System.java:535) at com.example.testjni2.MainActivity.<clinit>(MainActivity.java:9) ... 15 moreMy structure project looks like thisI added my build.gradle line: compile files('libs/armeabi/libhello-jni.so')But this don't helped.I read Gradle and Android Gradle plugin, but I don't find information about working with jni folderI am thinking what it file dependencies, but it isn't workingMy hello-jni.c file includjstring Java_com_example_testjni2_MainActivity_stringFromJNI (JNIEnv *env, jobject thiz){ return (*env)->NewStringUTF(env, "Hello from JNI !"); }My MainActivity file includepublic class MainActivity extends Activity { static { System.loadLibrary("hello-jni"); } public native String stringFromJNI(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); String text = stringFromJNI(); Log.i("MainActivity", text); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; }}My Android.mk file containtsLOCAL_PATH := $(call my-dir)include $(CLEAR_VARS)LOCAL_MODULE := hello-jniLOCAL_SRC_FILES := hello-jni.cinclude $(BUILD_SHARED_LIBRARY)Tell me, please, where I could make a mistake.Android Studio 0.1.7OS - Windows 7 x64 解决方案 The gradle build system does not support bundling native libraries at the moment. Check https://groups.google.com/d/msg/adt-dev/nQobKd2Gl_8/Z5yWAvCh4h4J for some custom tasks you'd need to add to your build.gradle.Note that this is a temporary workaround until gradle supports building native projects. 这篇关于Android Studio 中的 JNI 文件夹的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！