Class Structure of the Platform Layer (Corrected)

In my previous post, I forgot to include the event handling mechanism, so here's an updated class diagram that accurately shows the static structure of the platform layer.  If you compare it to the architecture diagram I posted awhile back, you'll see that all four elements of the platform layer are now represented.

Class Structure of the Platform Layer

The platform independence layer seems to be working beautifully so far.  Here's how it stands right now.

This is only the abstracted view of the system.  All of the abstract classes and interfaces shown here have been implemented in both PC and Android versions in their own respective packages.