How to Switch Themes in Android Using RadioButtons?
We have seen android app comes with two different types of mode or theme which are dark mode or light mode or we also called them as night and morning mode. In this article, we will implement the light and dark mode in android using RadioButton.
What we are going to build in this article?
We will be building a simple application in which we will be displaying simple text and RadioButton in which we will be switching our theme from light to dark using simple RadioButtons. A sample video is given below to get an idea about what we are going to do in this article. Note that we are going to implement this project using the Java language.
Step by Step Implementation
Step 1: Create a New Project
To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. Note that select Java as the programming language.
Step 2: Working with the activity_main.xml file
Navigate to the app > res > layout > activity_main.xml and add the below code to that file. Below is the code for the activity_main.xml file.
Step 3: Working with the colors.xml file
Navigate to the app > res > values > colors.xml and add the below code to it.
Step 4: Working with themes.xml for light mode
Navigate to the app > res > values > themes > themes.xml for light mode and add the below code to it.
Step 5: Working with themes.xml(night) for dark mode.
Navigate to the app > res > values > themes > themes.xml(night) for dark mode and add the below code to it.
Step 6: Working with the MainActivity.java file
Go to the MainActivity.java file and refer to the following code. Below is the code for the MainActivity.java file. Comments are added inside the code to understand the code in more detail.
Now run your app and see the output of the app.