How to find the view ID in the layoutInspector (if mID=NO_ID) so that you can refer to it using R.*?

Question

Android

I'm trying in the telegram project (android version) to understand how to find this or that element in the activity.
Advised to use layoutInspector for these purposes. But the identifier contains the NO_ID value. (See screenshot)
It is important to understand the principle itself.

I tried logically to find its name in R.* using the menu button as an example, but in vain, there is nothing similar.
How, in the end, in the context of the telegram project, can I find the identifier of the desired view in a specific activity?

Answer 1

As far as I know, telegram does not use xml markup. They create the whole ui from code.
Therefore, they do not need IDs at all, and accordingly, you will not find anything in the R-file.