未找到在NDK本地实现 [英] No Implementation found for native in ndk
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问题描述
我打一个错误，使用JNI ......我在android的活动类，一个简单的本地方法，创造了头并实施了该C文件...找不到错误请帮助
下面是我的文件
活动
静态{
的System.loadLibrary（fluidsynth）;
} 私人本地字符串textOverjni（）;
头文件
/ * DO NOT EDIT这个文件 - 它是生成的机器* /
＃包括LT＆;＆jni.h GT;
/ *头类com_example_fluidsynthtest_MyFluidSynthO * /的#ifndef _Included_com_example_fluidsynthtest_MyFluidSynthO
＃定义_Included_com_example_fluidsynthtest_MyFluidSynthO
#IFDEF __cplusplus
为externC{
＃万一
和#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_PRIVATE
＃定义com_example_fluidsynthtest_MyFluidSynthO_MODE_PRIVATE 0L
和#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_READABLE
＃定义com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_READABLE 1L
和#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_WRITEABLE
＃定义com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_WRITEABLE 2L
和#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_APPEND
＃定义com_example_fluidsynthtest_MyFluidSynthO_MODE_APPEND 32768L
和#undef com_example_fluidsynthtest_MyFluidSynthO_BIND_AUTO_CREATE
＃定义com_example_fluidsynthtest_MyFluidSynthO_BIND_AUTO_CREATE 1L
和#undef com_example_fluidsynthtest_MyFluidSynthO_BIND_DEBUG_UNBIND
＃定义com_example_fluidsynthtest_MyFluidSynthO_BIND_DEBUG_UNBIND 2L
和#undef com_example_fluidsynthtest_MyFluidSynthO_BIND_NOT_FOREGROUND
＃定义com_example_fluidsynthtest_MyFluidSynthO_BIND_NOT_FOREGROUND 4L
和#undef com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_INCLUDE_ code
＃定义com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_INCLUDE_ code 1L
和#undef com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_IGNORE_SECURITY
＃定义com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_IGNORE_SECURITY 2L
和#undef com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_RESTRICTED
＃定义com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_RESTRICTED 4L
和#undef com_example_fluidsynthtest_MyFluidSynthO_RESULT_CANCELED
＃定义com_example_fluidsynthtest_MyFluidSynthO_RESULT_CANCELED 0L
和#undef com_example_fluidsynthtest_MyFluidSynthO_RESULT_OK
＃定义com_example_fluidsynthtest_MyFluidSynthO_RESULT_OK -1L
和#undef com_example_fluidsynthtest_MyFluidSynthO_RESULT_FIRST_USER
＃定义com_example_fluidsynthtest_MyFluidSynthO_RESULT_FIRST_USER 1L
和#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DISABLE
＃定义com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DISABLE 0L
和#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DIALER
＃定义com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DIALER 1L
和#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SHORTCUT
＃定义com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SHORTCUT 2L
和#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_LOCAL
＃定义com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_LOCAL 3L
和#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_GLOBAL
＃定义com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_GLOBAL 4L
/ *
*类别：com_example_fluidsynthtest_MyFluidSynthO
*方法：textOverjni
*签名：（）Ljava /朗/字符串;
* /
JNIEXPORT的jstring JNICALL Java_com_example_fluidsynthtest_MyFluidSynthO_textOverjni
（JNIEnv的*，jobject）;#IFDEF __cplusplus
}
＃万一
＃万一
C文件
的#include＆LT; jni.h＆GT;
＃包括LT＆;＆string.h中GT;
＃包括LT＆;＆MyFluidSynthO.h GT;
JNIEXPORT的jstring Java_com_example_fluidsynthtest_MyFluidSynthO_textOverjni
（JNIEnv的* ENV，jobject OBJ）{
返回（* ENV） - GT; NewStringUTF（ENV，您好！Worlddd从MyFluidSynth1）;
}
Android.mk
LOCAL_PATH：= $（叫我-DIR）包括$（CLEAR_VARS）LOCAL_MODULE：= fluidsynth
#LOCAL_C_INCLUDES +：= $（LOCAL_PATH）/包括\\
$（LOCAL_PATH）/有/ fluidsynthLOCAL_SRC_FILES +：= \\
MyFluidSynthO.c
#LOCAL_LDLIBS：= -llog
包括$（BUILD_SHARED_LIBRARY）的#include $（CLEAR_VARS）的#include $（BUILD_SHARED_LIBRARY）
解决方案
有关没有找到执行的问题，同时建立的Android NDK，你可以看看下面这解释了这些问题的原因和解决办法的链接。
<一个href=\"http://stackoverflow.com/questions/2197889/android-ndk-c-jni-no-implementation-found-for-native?rq=1\">Android NDK C ++ JNI（不执行发现原生...）
<一个href=\"http://stackoverflow.com/questions/10814143/android-ndk-jni-no-implementation-found-error?rq=1\">android NDK JNI没有实现找到错误
<一个href=\"http://stackoverflow.com/questions/11505927/no-implementation-found-for-native-error-when-calling-c-function-android-ndk?rq=1\">"No执行发现原生＆QUOT;错误，当调用C函数 - 的Android NDK - Eclipse的
I am struck with an error, using the jni ... I have a simple native method in android activity class and created header for that and implemented the c file for that...unable to find the mistake pls help
Here are the files that I have
Activity
static{
System.loadLibrary("fluidsynth");
}
private native String textOverjni();
Header file
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class com_example_fluidsynthtest_MyFluidSynthO */
#ifndef _Included_com_example_fluidsynthtest_MyFluidSynthO
#define _Included_com_example_fluidsynthtest_MyFluidSynthO
#ifdef __cplusplus
extern "C" {
#endif
#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_PRIVATE
#define com_example_fluidsynthtest_MyFluidSynthO_MODE_PRIVATE 0L
#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_READABLE
#define com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_READABLE 1L
#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_WRITEABLE
#define com_example_fluidsynthtest_MyFluidSynthO_MODE_WORLD_WRITEABLE 2L
#undef com_example_fluidsynthtest_MyFluidSynthO_MODE_APPEND
#define com_example_fluidsynthtest_MyFluidSynthO_MODE_APPEND 32768L
#undef com_example_fluidsynthtest_MyFluidSynthO_BIND_AUTO_CREATE
#define com_example_fluidsynthtest_MyFluidSynthO_BIND_AUTO_CREATE 1L
#undef com_example_fluidsynthtest_MyFluidSynthO_BIND_DEBUG_UNBIND
#define com_example_fluidsynthtest_MyFluidSynthO_BIND_DEBUG_UNBIND 2L
#undef com_example_fluidsynthtest_MyFluidSynthO_BIND_NOT_FOREGROUND
#define com_example_fluidsynthtest_MyFluidSynthO_BIND_NOT_FOREGROUND 4L
#undef com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_INCLUDE_CODE
#define com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_INCLUDE_CODE 1L
#undef com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_IGNORE_SECURITY
#define com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_IGNORE_SECURITY 2L
#undef com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_RESTRICTED
#define com_example_fluidsynthtest_MyFluidSynthO_CONTEXT_RESTRICTED 4L
#undef com_example_fluidsynthtest_MyFluidSynthO_RESULT_CANCELED
#define com_example_fluidsynthtest_MyFluidSynthO_RESULT_CANCELED 0L
#undef com_example_fluidsynthtest_MyFluidSynthO_RESULT_OK
#define com_example_fluidsynthtest_MyFluidSynthO_RESULT_OK -1L
#undef com_example_fluidsynthtest_MyFluidSynthO_RESULT_FIRST_USER
#define com_example_fluidsynthtest_MyFluidSynthO_RESULT_FIRST_USER 1L
#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DISABLE
#define com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DISABLE 0L
#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DIALER
#define com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_DIALER 1L
#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SHORTCUT
#define com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SHORTCUT 2L
#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_LOCAL
#define com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_LOCAL 3L
#undef com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_GLOBAL
#define com_example_fluidsynthtest_MyFluidSynthO_DEFAULT_KEYS_SEARCH_GLOBAL 4L
/*
* Class: com_example_fluidsynthtest_MyFluidSynthO
* Method: textOverjni
* Signature: ()Ljava/lang/String;
*/
JNIEXPORT jstring JNICALL Java_com_example_fluidsynthtest_MyFluidSynthO_textOverjni
(JNIEnv *, jobject);
#ifdef __cplusplus
}
#endif
#endif
C file
#include <jni.h>
#include <string.h>
#include <MyFluidSynthO.h>
JNIEXPORT jstring Java_com_example_fluidsynthtest_MyFluidSynthO_textOverjni
(JNIEnv* env, jobject obj){
return (*env)->NewStringUTF(env, "Hello Worlddd from MyFluidSynth1 !");
}
Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := fluidsynth
#LOCAL_C_INCLUDES +:= $(LOCAL_PATH)/include\
$(LOCAL_PATH)/include/fluidsynth
LOCAL_SRC_FILES +:= \
MyFluidSynthO.c
#LOCAL_LDLIBS := -llog
include $(BUILD_SHARED_LIBRARY)
#include $(CLEAR_VARS)
#include $(BUILD_SHARED_LIBRARY)
解决方案
For "No implementation found" issues while building Android NDK, you can look into following links which explain the reasons and solutions for these problems.
Android NDK C++ JNI (no implementation found for native...)
android ndk jni No implementation found error
"No implementation found for native" error when calling C function - Android NDK - Eclipse
这篇关于未找到在NDK本地实现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IT屋！
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