Hello people,

As I am fairly new at this , I want to understand the package/class hierarchy going on here ... which inherits from which and a summary of what each class can do.

And also as I'm not natively a java programmer , I'm not quiet familiar with the java packages/classes involved in android development.

I found the package and class hierarchy of all android-related packages/classes HERE but this is just too much

as a relatively novice android developer , Which packages of those do I need to learn about ? also consider that I don't have much experience in Java (I'm originally a C/C++/C# developer).