There are some components I need to use from these three 'supposedly' open source apps for android.

I looked at the source code for android, but I can't seem to find the gmail app; I can only find the email app.

I looked at the source code for the official facebook sdk for android, but there is no source code for the actual facebook app; there only is the source for the sdk, not the app.

And as for the twitter app, I can't even find the source code repository despite a million articles on the web saying that the twitter for android is open source.

Does anyone know where?

android facebook twitter gmail
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