Building a particular module in the android source code

Question

I am working on an android source code which I have downloaded from source.android.com.

After a full build I went through this site http://elinux.org/Android_Build_S

Answer 1

The folder frameworks contains many things, you have to be more specific about telling make what to build.

For example I made a change in: frameworks/base/cmds/input/src/com/android/commands/input/Input.java. Now the corresponding Android.mk file is located in: frameworks/base/cmds/input/Android.mk, which contains a line saying: LOCAL_MODULE := input.

Thus the module being build from the source is called input, so I call:

$ make input

Which rebuilds that specific module.

As a bonus info, you can use the mmm helper and you can specify the path of the module to build like this:

$ mmm frameworks/base/cmds/input

or using mm which just builds the module in you current working directory:

$ cd frameworks/base/cmds/input
$ mm

I normally use mmm as my preferred tool.

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Update

Oh, I see you might be talking specifically about the module called framework

I just tried to modify: frameworks/base/core/java/android/app/Dialog.java, and do a: make framework.

This seems to recompile the framework just fine. Which file exactly are you making changes in before running make framework ?

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In response to your comment

I just tried to modify frameworks/base/core/java/android/webkit/WebView.java. mmm frameworks/base as well as make framework works perfectly fine for me.

If it does not work for you, can you update your question with additional information about which android version you are building, which commands you are typing exactly, and the output your are seeing?