can i use android for bitcoin mining?
No. It's not worth it.
And your question was answered countless times already.
Please next time do a small search, like google for sometihng like: smartphone mining site:bitcointalk.org
maybe i need a small search to know more about bitcoin.
In this case you started too abruptly. My suggestion is to start with
https://bitcoin.org/en/resources and for your quest on mining
https://en.bitcoin.it/wiki/MiningShortly, if you mine with anything else than ASIC (special devices designed for mining only), you'll earn per month less than you get from faucets and you'll not be able to even withdraw that money from mining pools (because it's too small amount).