How in android to bind the opening of the application by clicking on the power button or scanner?

Question

Android

How in android to bind the opening of the application by clicking on the power button or scanner? For example, double-clicking on the power button opens the camera. And how to set up, for example, a triple click on a Gpay call, or a double tap on the fingerprint scanner - to open the gallery. ?

Answer 1

Such utilities are searched for "buttons remapper" on Google Play, although many unpopular or custom firmwares already have this feature built in.