By the end of this exercise, you should know how to define a theme in your resources in an XML file, how to define attributes of the theme, how to apply those to your layout file, and finally how to dynamically change the theme of an activity. We will be defining multiple themes in our app and use a spinner view to switch between themes.

A Theme is a Style that applies to the entire application or a certain Activity. Styles in Android is similar in concept to CSS on web because it separates design from the content. A style is a xml resource and it separates the design attributes from XML layout. For more general overview of these concepts, check out Styles and Themes cliffnotes.Ī style in Android is a collection of attribute/value pairs applied to a view.

At the end of this exercise, you will have better understanding of some of the core features of Android like - drawables, styles and themes. The following tutorial explains how to build an application that can switch between multiple distinct themes.

How to theme android studio