Android SDK compilation-how to add your own source code to android. jar

You need to perform the following steps to re-compile Android. jar with your own API on the basis of successful android source code compilation.

1. add your own source code. Create a folder under the framework/base Directory of the Android source code to save the Code, such as TV. Name the path of the added file in the form of a package, for example,/TV/java/android/TV, the package defined at the beginning of the added java file is the package of the compiled class file.

2. Modify the makefile file

2.1 modify the build/core/pathmap. mk File

Add TV \ to the variable FRAMEWORKS_BASE _ SUBDIRS. The Code is as follows (the statements in the makefile file start with a Tab space)

FRAMEWORKS_BASE_SUBDIRS: = \

$ (Addsuffix/java ,\

Core \

Graphics \

Location \

Media \

Opengl \

Sax \

Telephony \

Wifi \

Vpn \

Keystore \

TV \

)

2.2 modify the frameworks/base/Android. mk File

Add the package name of your source code, such as android/TV, after the packages_to_document variable. The result is as follows (the statement in the makefile file starts with a Tab space)

Packages_to_document: = \

Android \

Javax/microedition/khronos android/TV

3. Compile with the following command on the ubuntu command line terminal:

Make clean

Make update-api

Make PRODUCT-sdk

The last line can also be replaced by the following two commands:

Make-j4

Make sdk

4. Compilation result

4.1 The directory where the android. jar file is located is

/Out/target/common/obj/PACKAGING/android_jar_intermediates/android. jar and in the/out/target/common/obj/JAVA_LIBRARIES/android_stubs_current_intermediates/src directory, organize all the data generated to android in package format. jar.

4.2 The SDK directory is

Out/host/linux-x86/sdk/, the generated sdk file directory and compressed package is:

Android-sdk_eng.xxx_linux-x86

Android-sdk_eng.xxx_linux-x86.zip (xxx is the file name of your android source code)