I think, it is not so good idea. Mining on Mobile Phone will require a lot of power and quickly defuse your phone. It will not be convenient
I agree, our phone cannot handle enough power for mining but Samsung has been developed Bitcoin mine using a number of Samsung Galaxy 5s and they're mining a lot of Bitcoin per hour. Imagine, the power required by a smartphone is lesser than the Bitcoin miners we know today.
But doesn't mean that you're going to use your phone regularly and at the same time you're mining, it doesn't pretty work well. Because mining must run 24/7 while the battery charger is connected.