What is the difference between Activity Context and Application Context in Android?

In Android, Activity Context and Application Context are two types of contexts used for different purposes and have different lifecycles.

• Activity Context is associated with a specific activity. It lives as long as the Activity itself and can be used for UI-related operations, such as creating dialogs, starting new activities, and accessing resources specific to the Activity.

• Application Context is tied to the lifecycle of the entire application. It exists as long as the app is running and does not depend on any particular Activity. It is used for operations that need to outlive an Activity, such as accessing databases, services, or creating objects that should live longer than an Activity.

It is important not to use Application Context where Activity Context is needed, such as for displaying UI elements, as this can lead to errors or memory leaks.