How to make voice activation (your "Ok Google") on android?

Question

Android

Hello!
Please tell me how you can make voice activation in the application, something like "Ok Google".

Answer 1

This is done through voice commands:
https://developers.google.com/voice-actions/system/
An example for a taxi:
https://developer.android.com/guide/components/int...
The set of actions is of course limited, no their "okay google", but completely legal from a security point of view.