How access the ID's from XML file without using findviewbyid ?

3 methods have been discussed to access your UI elements :

1) findViewByID() - one of the oldest way (old-fashioned way?)
Well, the simple old findViewById() method provides a way for you to make reference to a View from within your Kotlin code. In other words, it binds Views to the Kotlin code.

2) synthetic property from Kotlin Extensions ( deprecated today?)

3) View Binding - a relatively new way to access your UI elements using generated binding object

How access the ID's of XML file without using findviewbyid