android - Is it possible to create an app that when installed the user can easily turn Bluetooth/NFC ON and OFF by double clicking the Home button? -

i'm looking create shortcut bluetooth or nfc on android+ios, preferably "double clicking home button." possible?

if not possible there other shortcuts? maybe double tapping mobile screen?

thanks reading.

on ios, of 10 june 2015, not possible on non-jailbroken devices, there no public api expose button actions developer.