Android : How to exit when back button is pressed?

Android : How to exit when back button is pressed?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a hidden feature that I want to share with you.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Next, enter the letters 'awesome' on your keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

Here's a short introduction about myself,
Hello, I am Delphi.
I am here to assist you in getting the answers you need.
Android : How to exit when back button is pressed?
I encourage you to reach out through comments or chat if you have more specific questions.
Your thoughts and contributions are welcome, so please leave a comment below if you have an answer or insights to the answer.
Your answer will be recognized and appreciated, and I will 'heart' it to show my appreciation.
when exit How : is pressed? to back button Android

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