利用源码编译Android系统的APK和可执行命令的方法

编译Android系统APK
1、设置环境

export ANDROID_HOME=/home/administrator/soft/android export PATH=$PATH:$ANDROID_HOME/out/host/linux-x86/bin export ANDROID_PRODUCT_OUT=$ANDROID_HOME/out/target/product/generic

2、创建项目

android create project -t 1 -k com.lhw.led -a MainActivity -p ./led Avd id: 1，It's get by command "android list" Project Name: led Package: com.lhw.led Main Activity:MainActivity Project Path: ./

接下来就是自己编写Android程序了。

3、编写Android.mk
Android.mk需要放在项目根路径下，即led下,内容：

LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_SRC_FILES := $(call all-subdir-java-files) LOCAL_PACKAGE_NAME := led LOCAL_JAVA_LIBRARIES := LOCAL_STATIC_JAVA_LIBRARIES := include $(BUILD_PACKAGE)

4、编译
在Android源码目录下执行：

./build/envsetup.sh mmm /home/administrator/workspace/android_test/led/

执行结果：

Install: out/target/product/generic/system/app/led.apk

编译Android系统可执行命令

Android系统允许开发者，自己编写"ls"这样的命令放到Android系统中。

1、编写C文件:mycmd.c

#include <stdio.h> int main(int argc, char **argv) { printf("This is my command!\n"); return 0; }

2、编写Android.mk文件

LOCAL_PATH := $(call my-dir) LOCAL_SRC_FILES := mycmd.c LOCAL_MODULE := mycmd LOCAL_MODULE_TAGS := mycmd LOCAL_SHARED_LIBRARIES := libc LOCAL_STATIC_LIBRARIES := include $(BUILD_EXECUTABLE)

3、编译

mmm /home/administrator/workspace/android_test/mycmd/

编译完成后信息：

Install: out/target/product/generic/system/bin/mycmd