[android help] ADT: Avoid duplicating code in package with dependency on another deployed package?

When I have e.g. a custom service and a custom activity in the same ADT project, then I can use this in the service, to start my activity:

Intent i = new Intent(context, MyCustomActivity.class);
startActivity(i);

However when I have the service and activity in separate projects, then I cannot do this since I do not have a direct reference to MyCustomActivity.class. This is problematic: I do not wish to include a JAR just to be able to fix that broken reference, since I assume this will increase the package size and create redundant data on the device (i.e. activity code is duplicated between the service and activity packages). So instead, I use this (perhaps there are other options?):

Intent i = new Intent("com.mypackage.myStringActionName");
startActivity(i); //is this a broadcast?

OR

Intent i = new Intent("com.mypackage.myStringActionName");
sendBroadcast(i);

...But I don't really like sending broadcasts when all I want is to direct the intent to a single activity to tell it to start.

So, what other ways are there to go about avoiding duplication (in ADT)? Or else a better way to send direct intents?

.

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