Android and configurable application, reusable activities
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I am working on a project, which at that stage will have to be customized for different customers.  Application consists of some business logic and 15 different activities for the UI. Lets assume that activity A starts B, and B starts activity C. A knows about B, B knows about C. I want to be able to swap activity B (use different layout, a bit different logic to handle user interaction), but leave A and C intact. What is the best approach to achieve that? I will have more and more different activities (serving similar purpose) for different customers, so the solution needs to handle many different configurations.

I was planning on splitting customized activities to different libraries and using DI container (RoboGuice 2.0) to inject them, depending on configuration, but it looks like i still need to put all the activities in manifest.xaml, which requires double work (editing manifest + configuring DI container).