Does Airport support Android?

As a Wi-Fi client device from an AirPort Extreme, AirPort Express, or AirPort Time Capsule router, yes.

AirPort will first need to be configured for use from a Mac, iPhone, iPad, or Windows system, however. This as the configuration tool known as AirPort Utility is available for these platforms. Not for Android.

Once the AirPort is initially configured, Android can then join and operate as can any other Wi-Fi client.

A few “extra” AirPort-related network services might not or will not be available to Android clients, such as the audio server on AirPort Express. This won’t effect Android connecting to the Internet for instance, once the AirPort router is initially configured.

An Android device can connect to the WiFi signal from an AirPort router if that is what you mean by "support".

If you mean something else, we need more details.