This comprehensive guide will break down the underlying core concepts of nested layouts, provide a clean structural framework for your code, and review best practices for writing adaptive mobile user interfaces. The Concept of Nested Views
Every XML file needs one root element. In most CodeHS Android units, this is a LinearLayout . 2.3.9 nested views codehs
Inside the parent, add another . Give this child a specific height and width (e.g., 200x200 ) and a second color. Use justifyContent and alignItems on the parent to center this view. This comprehensive guide will break down the underlying