Using source code to compile the Android system's apk and executable command method _android

Build Android System apk
1, set up the environment

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, create the project

Android Create Project-t 1-k com.lhw.led-a mainactivity-p./led Avd id:1,it
' s Get by command "Android list"

p roject name:led
Package:com.lhw.led 

Main activity:mainactivity

Project Path:./

The next step is to write your own Android program.

3, the preparation of android.mk
android.mk need to be placed under the project root path, that is, under the LED, content:

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, compile
execute under the Android source directory:

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

Execution results:

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

Build Android System executable command

The Android system allows developers to write "LS" commands on their Android systems.

1, the preparation of C documents: MYCMD.C

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

2, the preparation of ANDROID.MK documents

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, compile

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

After the compilation completes the information:

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