If this were possible, it would be very good
This is not at all possible hope people who would have tried it would have being felt pathetic because it will eat away your battery quickly and your life of the phone gets affected due to overheating and continuous charging of the phone. So avoid doing any of such things with mobile phone.
It will even deteriorate the phone's life in the long run. I tried testing the freebitco.in mobile mining which is more of a Monero converted to bitcoin immediately mining and my phone became so hot even at just 2 threads and 80% CPU usage and what did I get at the end ?
1 satoshi after 20 minutes. It is really pointless and for the fact that you will have to either leave your phone plugged to the charger and keep your data running, it is totally not worth it.