Can Android devices install Xbox games,

This question can be taken a couple ways so I'll answer as best as I can.

If you're asking to be able to play Xbox games on your Android you can (although they can't be installed on your Android) but the process isn't easy unless you're familiar with setting up a lot of pc stuff. In this case waiting for Microsoft's xCloud service
may be the best option (and what I'm waiting on).

If you asking if you can have your Xbox download games while shopping from your Android then this is possible in a few ways but in any case you'll need to have a few things setup on your Xbox. First you'll need to make sure your console is set as your "Home"
box by going here: https://support.xbox.com/en-US/games/game-setup/my-home-xbox

Then you'll need to make sure you have remote downloads enable by following the steps here: https://support.xbox.com/en-US/games/game-setup/install-games-remotely-on-xbox-one

Now anytime you purchase a new game it will automatically be installed on your Xbox.

I hope this answers your question either way and if not you can reply with some more details and someone may help clarify any other questions you have.

You can install your games through the game pass application and you can download them in your xbox, as long as you have that option activated in the xbox, now in case you want to download xbox games in your phone, you can't, maybe in a future with xcloud
we can play with xbox games on the cell phone

It download things to the console through remote installation. You can't play actual games on your phone though. Phones aren't built to run stuff like that lol.

At the moment you cant actually play games that are on Xbox one on a Android device

If you want to install xbox games from an android device with gamepass app its possible if you own gamepass