关于ANDROID NATIVE 的No implementation found for native有关问题

背景：搞android framework改制，加入一个系统服务。在framework/base/service里

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写一个测试程序：

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xxxxxx_android_hua_HuaRadio.cpp

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#define LOG_TAG "Vehicle-JNI"#include "JNIHelp.h"#include "jni.h"#include <termios.h>#include <string.h>#include <fcntl.h>#include <utils/Log.h>#define MCU_DEV "/dev/uart-mcu"using namespace std;namespace android {	static void xxx_android_hua_HuaRadio_nativeInit		(JNIEnv * env, jobject obj){			jclass cls = env->GetObjectClass(obj);			jmethodID print= env->GetMethodID(cls,"print","()V");			env->CallIntMethod(obj,print);		}	static void xxx_android_hua_HuaRadio_nativeRun		(JNIEnv *, jobject){			LOGE("send data:%d",2222222);		}	static JNINativeMethod HuaRadioMethods [] = { 		{"nativeInit","()Z",(void*)xxx_android_hua_HuaRadio_nativeInit},		{"nativeRun","()Z",(void*)xxx_android_hua_HuaRadio_nativeRun},	};	int register_xxx_android_hua_HuaRadio(JNIEnv *env)	{		int res = jniRegisterNativeMethods(env,"cn/com/xxx/android/hua/HuaRadio",				HuaRadioMethods,NELEM(HuaRadioMethods));		return 0;	}}

HuaRadio.java

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package cn.com.xxx.android.hua;import android.content.Context;import cn.com.xxx.android.IHuaRadio;public class HuaRadio  extends IHuaRadio.Stub{	private Context context;	public  HuaRadio(Context ctx){		System.out.println("HuaRadio init() by hua");		this.context=ctx;	try{		nativeInit();		nativeRun();		}catch(Exception e){		System.out.plintln("hua "+e);}	}	public void init(){		nativeRun();		}	public void print(){		System.out.println("HuaService print method!!!");	}	public native  void nativeInit();  	public native void nativeRun();  }

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最后编译出现

No implementation found for native问题

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为什么呢？

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找了许久，发现register_xxx_android_hua_HuaRadio是要自己注册的

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在onload.cpp 里加入

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namespace android {int register_android_server_AlarmManagerService(JNIEnv* env);int register_android_server_BatteryService(JNIEnv* env);int register_android_server_InputManager(JNIEnv* env);int register_android_server_LightsService(JNIEnv* env);int register_android_server_PowerManagerService(JNIEnv* env);int register_android_server_UsbService(JNIEnv* env);int register_android_server_VibratorService(JNIEnv* env);int register_android_server_SystemServer(JNIEnv* env);int register_android_server_location_GpsLocationProvider(JNIEnv* env);//加入这个 就OK了int register_cs2c_android_hua_HuaRadio(JNIEnv* env);};

哎！！！