RadioButtons in Android using Jetpack Compose - Software Development PDF Download

RadioButtons in Android using Jetpack Compose

RadioButtons are utilized to choose a specific option from a list of several options. They are commonly used for selecting a single option from a list of two or more options. In this guide, we will delve into the implementation of RadioButtons in Android using Jetpack Compose.

Attributes of Radio Button

• Attribute Descriptions
• selected: This attribute is employed to indicate a selected radio button.
• onClick: Used when the radio button is clicked.
• modifier: Adds padding to the radio buttons.

Step by Step Implementation

• Step 1: Create a New Project
• To create a new project in Android Studio Canary Version, please refer to the guide on creating a new project in Android Studio Canary Version with Jetpack Compose.
• Step 2: Working with the MainActivity.kt file
• Navigate to app > java > your app's package name and open the MainActivity.kt file. Add the provided code to it. Comments within the code offer detailed explanations.

Code Snippet:

• import android.graphics.drawable.shapes.Shape
• import android.media.Image
• import android.os.Bundle
• import android.widget.Toast

Radio Button Functionality

• The radioOptions variable contains a list of options such as "DSA," "Java," and "C."
• Through the onOptionSelected function, a user can select an option from the list.
• The SimpleRadioButtonComponent function aligns the radio buttons in a column, allowing for easy selection.
• Each radio button is associated with a specific text and can trigger actions when clicked.

RadioButton Structure

• The RadioButton function generates the radio buttons with their associated functionality.
• ContextAmbient.current retrieves the context for the radio button actions.
• Text elements are added to the radio buttons for displaying the options.
• Toast messages are displayed upon selecting a radio button to provide feedback to the user.

Output:

• Video Player
• 00:00
• 00:12
• Use Up/Down Arrow keys to increase or decrease volume.

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