android 自定义第三方库

1. /framework/base/encrypt 新建文件夹。

encrypt 目录结构：

        |--java

           |--android

             --encrypt

                --Encryption.java

           |--encryptlib.xml

           |--Android.mk

        |--jni

           |--android_encrypt_Encryption.cpp

            --EncryptManager.cpp

           |--Android.mk

 

Encryption.java：

 

package android.encrypt;public class Encryption {        static {        System.loadLibrary("encrypt_jni");    }        static native boolean verifyPasswordNative(char[] src, char[] des);        public static boolean  verifyPassword(char[] src, char[] des) {        return verifyPasswordNative(src, des);                       }}

 

encryptlib.xml：

<?xml version="1.0" encoding="UTF-8"?><permissions><library     name="android.encrypt"file="/system/framework/encrypt.jar" /></permissions>

 

Android.MK：

LOCAL_PATH:= $(call my-dir)#MAKE_JARinclude $(CLEAR_VARS)LOCAL_SRC_FILES := $(call all-subdir-java-files)LOCAL_MODULE := encryptinclude $(BUILD_JAVA_LIBRARY)#MAKE_XMLinclude $(CLEAR_VARS)LOCAL_MODULE := encryptlib.xmlLOCAL_MODULE_CLASS := ETCLOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/permissionsLOCAL_SRC_FILES := $(LOCAL_MODULE)include $(BUILD_PREBUILT)

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android_encrypt_Encryption.cpp：

/* * Copyright 2008, The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *     http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */#define LOG_TAG "Encryption"#include "utils/Log.h"#include <assert.h>#include "jni.h"#include "JNIHelp.h"#include <encrypt/EncryptManager.h>#include "android_runtime/AndroidRuntime.h"using namespace android;static jbooleanverify_Password(JNIEnv *env, jclass clazz, jcharArray src, jcharArray des){EncryptManager& encrypt(EncryptManager::getInstance());jchar* srcValues = env->GetCharArrayElements(src, NULL);jchar* desValues = env->GetCharArrayElements(des, NULL);return encrypt.verify_Password(srcValues, desValues);}static JNINativeMethod gMethods[] = {    {"verifyPasswordNative",  "([C[C)Z",     (void*)verify_Password },};//}; // namespace androidint register_android_encrypt_Encryption(JNIEnv *env){    return AndroidRuntime::registerNativeMethods(env,    "android/encrypt/Encryption", gMethods, NELEM(gMethods));}jint JNI_OnLoad(JavaVM* vm, void* reserved){    JNIEnv* env = NULL;    jint result = -1;    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {        LOGE("ERROR: GetEnv failed\n");        goto bail;    }    assert(env != NULL);    if (register_android_encrypt_Encryption(env) < 0) {        LOGE("ERROR: Encryption native registration failed\n");        goto bail;    }    /* success -- return valid version number */    result = JNI_VERSION_1_4;bail:    return result;}

EncryptManager.cpp：(EncryptManager.h 放在/framework/include/encrypt)

/* * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *      http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */#define LOG_TAG "Sensors"#include <stdint.h>#include <sys/types.h>#include <utils/Errors.h>#include "utils/Log.h"#include <utils/RefBase.h>#include <utils/Singleton.h>#include <encrypt/EncryptManager.h>// ----------------------------------------------------------------------------namespace android {// ----------------------------------------------------------------------------ANDROID_SINGLETON_STATIC_INSTANCE(EncryptManager);EncryptManager::EncryptManager() {}EncryptManager::~EncryptManager() {}bool EncryptManager::verify_Password(const void* src, const void* des){return true;}// ----------------------------------------------------------------------------}; // namespace android

Android.mk：

LOCAL_PATH:= $(call my-dir)include $(CLEAR_VARS)LOCAL_SRC_FILES:= \android_encrypt_Encryption.cpp \EncryptManager.cppLOCAL_SHARED_LIBRARIES := \libandroid_runtime \libcutils \libutils \libbinder \LOCAL_MODULE:= libencrypt_jniLOCAL_PRELINK_MODULE := falseLOCAL_MODULE_TAGS := optionalifeq ($(TARGET_SIMULATOR),true)    LOCAL_LDLIBS += -lpthreadendifinclude $(BUILD_SHARED_LIBRARY)

编译后，最总会生成：

/system/etc/permissions/encryptlib.xml

/system/framework/encrypt.jar

/system/lib/libencrypt_jni.so

 

andriod 源码应用时，要在/build/core/pathmap.mk 添加新建的文件路径 /encrypt

FRAMEWORKS_BASE_SUBDIRS := \
 $(addsuffix /java, \
     core \
     graphics \
     location \
     media \
     opengl \
     sax \
     telephony \
     wifi \
     vpn \
     keystore \
     voip \
     encrypt \
  )

 

android 应用程序应用时，在AndroidManifest.xml中添加

<uses-library android:name="android.encrypt" />

指向对应的jar包