Difference Between a Fragment and an Activity in Android Last Updated : 06 Jan, 2025 Comments Improve Suggest changes Like Article Like Report An Activity is a user interface component that is mainly used to construct a single screen of the application and represents the main focus of attention on a screen. An activity can host one or more fragments at a time. Fragments, as tablets emerged with larger screens, are reusable components that are attached to and displayed within activities. It is basically a piece of an activity that enables more modular activity design. We can call a fragment is a kind of sub-activity. It is always hosted by an activity. It has its own layout and its own behavior with its own life cycle callbacks. We can add or remove fragments in an activity while the activity is running. It is possible to develop a UI only using Activities, but this is generally a bad idea since their code cannot later be reused within other Activities, and cannot support multiple screens. Activity is the UI of an application through which user can interact and Fragment is the part of the Activity, it is a sub-Activity inside activity which has its own Life Cycle which runs parallel to the Activities Life Cycle.Activity LifecycleTo read more refer to Activity Lifecycle in Android with Demo App.Fragment LifecycleTo read more refer to Fragment Lifecycle in AndroidDifference TableActivityFragmentActivity is an application component that gives a user interface where the user can interact. The fragment is only part of an activity, it basically contributes its UI to that activity.Activity is not dependent on fragment Fragment is dependent on activity. It can't exist independently.we need to mention all activity it in the manifest.xml file Fragment is not required to mention in the manifest fileWe can't create multi-screen UI without using fragment in an activity,After using multiple fragments in a single activity, we can create a multi-screen UI.Activity can exist without a Fragment Fragment cannot be used without an Activity.Creating a project using only Activity then it's difficult to manageWhile Using fragments in the project, the project structure will be good and we can handle it easily.Lifecycle methods are hosted by OS. The activity has its own life cycle.Lifecycle methods in fragments are hosted by hosting the activity.Activity is not lite weight. The fragment is the lite weight. Comment More infoAdvertise with us Next Article Difference Between a Fragment and an Activity in Android A annianni Follow Improve Article Tags : Difference Between Android Similar Reads Difference Between Foreground Service vs Activity in Android A Service is a component of an application that may conduct long-running activities in the background. It does not have a graphical user interface. A service that has been started may continue to run for some time after the user changes to another program. A component can also bind to a service in o 3 min read Difference Between ActionBar and Toolbar in Android ActionBar ActionBar is the element present at the top of the activity screen. It is a salient feature of an android application that has a consistent presence over all its activities. It provides a visual structure to the app and contains some of the frequently used elements for the users. Android A 3 min read Difference between Android 1.0 and Android 6 1. Android 1.0 : Android 1.0 is the very first version of Android which was introduced by Google. It had some basic features including web browser support, camera support, Gmail accounts, Google maps and Youtube application. Although it does not have the official version name like further introduces 2 min read Difference between Android 1.0 and Android 2.3 1. Android 1.0 : Android 1.0 is the very first version of Android which was introduced by Google. It had some basic features including web browser support, camera support, Gmail counts, Google maps and Youtube application. Although it does not have the official version name like further introduces v 2 min read Difference between Android 1.0 and Android 2.0 1. Android 1.0 : Android 1.0 is the very first version of Android which was introduced by Google. It had some basic features including web browser support, camera support, Gmail counts, Google maps and Youtube application. Although it does not have the official version name like further introduces v 2 min read Like