A YouTuber was able to load Android 7.0 Nougat on a Raspberry Pi 3 and is able to use the device when connected to a display. There are a few bugs that are still being worked out so this may not be for everyone just yet.
Google has announced that it will be bringing Android to Raspberry Pi, but a developer has beat Google to the punch by creating an image of Android TV for Raspberry Pi 3 on his own. If you want to get Android TV up and running on your own Raspberry Pi 3, follow the source link below.
It's unclear exactly what Google is doing with the Raspberry Pi 3, but the company did add an AOSP device repository for the device.
Google could either make a build of Android that runs on the Raspberry Pi 3, or they could just be adding support to Android so it can interface with the device...