Dont even think of using your phone for mining. Even advanced level computers are not enough good to do so. You need certain things like mining hardwares, antminer, etc. But i also hope, that in upcoming days mining would be easier than it is rightnow.
I think in the near future we can use our smartphones on bitcoin mining, due to the continuously upgrading of smartphones all over the world I doubt that it can't surpass the mining in computers.