Android System Service how-to

${android-source}build/core/pathmap.mk

FRAMEWORKS_BASE_SUBDIRS := \

//Add library that application can link against

${android-source}frameworks/base/data/etc/platform.xml

<library name="android.awt"  file="/system/framework/android.awt.jar" />

Modify services/java/com/android/server/SystemServer.java

@Modify ServerThread:run method, adding our service to ServiceManager

try {

Log.i(TAG, “Starting Your Service.");

ServiceManager.addService(Context.YOUR_SERVICE, new YourService(context));

} catch (Throwable e) {

Log.e(TAG, “Failure starting Your Service", e);

}

}

Modify  core/java/android/content/Context.java

@add service constant string to context class

public static final String WIMAX_SERVICE = “wimax";

Modify core/java/android/app/ApplicationContext.java

@add class field to contain your service

private static YourManager sYourManager;

@change getSystemService ( ) method to return your service instance

if (YOUR_SERVICE.equals(name)) {

return getYourManager();

}

@add class method to retrieve IBinder stub from ServiceManager

private YourManager getYourManager()

{

synchronized (sSync) {

if (sYourManager == null) {

IBinder b = ServiceManager.getService(YOUR_SERVICE);

IYourManager service = IYourManager.Stub.asInterface(b);

sYourManager = new YourManager(service, mMainThread.getHandler());

}

}

return sYourManager;

}

Update current.xml by execute following commands

make update-api