It is impossible to do Bitcoin mining using an android phone. Doing a Bitcoin mining in a computer need a hardware mining rig, your internet LAN network needs to be great and stable, the specs of the computer is high and advance, it also needs to use a high volume of electricity. Those 4 aspects need to have on an android mobile in order to do mining but unfortunately, android phones doesn't support it as of now. If you really want to do mining then I strongly suggest using a computer with a mining rig.