Why doesn't code completion work for overridden methods in Android Studio?

Here's a picture of me overridding an on* method in an Activity descendant.

no code completion happening here

Why doesn't IntelliJ/AS try to guess as it does when I'm typing pretty much anything else?

I don't see anything obvious that's de-selected in settings:

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Solution

This is simply IntelliJ vs. Eclipse way of doing things. For me it works if I type "on" prefix without pressing Cmd+Space:

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but generally it looks like "IntelliJ" way would be to use Cmd+O and Cmd+I to override or implement methods correspondingly.