Your comment tells me you haven't used Android Studio at all, and are making up attributes based on what you assume something written in Java must be.

I use Jetbrains IDEs and Xcode every day. Whenever I have to write any significant amount of code, I switch from Xcode to Appcode.

> I'd kill for having an xCode like realtime autocomplete and documentation

From my experience, this is true for Jetbrains IDEs, and not for Xcode, particularly for autocomplete. Xcode autocomplete is a pain, and sometimes gets in the way instead of being actually helpful.