利用源码编译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