Why is XML used for the creation of UI layouts in Android?

Question

I would like to know why we use XML for the creating user interface layouts in Android. I know that it decouples the business logic from the design but what

Answer 1

Xml as itself is well readable both by human and machine. Also, it is scalable and simple to develop. Also, you have already mentioned the decoupling.

As for R.java - it is just the way of accessing widgets. The solution is rather good, as it is using ints instead of string to use less memory and in the same time provides well readable names for the simplicity of development.