Difference between Fragment and Activity in Android

In Android development, Fragments and Activities are components of the user interface that work together to create dynamic and interactive apps. The main difference between a Fragment and an Activity is that an Activity represents a single screen with a user interface, while a Fragment is a modular section of an activity that has its own lifecycle and behavior.

• Activity: Represents a single, focused thing that the user can do. It is a container for Fragments and manages the workflow of the app.
• Fragment: A modular section of an activity that has its own lifecycle and can be added or removed from the activity at runtime. Fragments allow developers to build flexible and responsive user interfaces.

Activities are crucial for navigation and managing the overall flow of an app, while Fragments are used to break the user interface into smaller, reusable components that can be combined and reconfigured based on the device size or orientation.

Both Fragments and Activities have their own lifecycle methods and can communicate with each other through the hosting Activity. Understanding the differences between Fragments and Activities is essential for building scalable and maintainable Android apps.