What is the difference between a local context and an application context in the infrastructure, and why is it important?

In Android, the local context (for example, Activity or Service) is tied to a specific component and may contain information related to the lifecycle of that component. The application context (ApplicationContext) exists throughout the lifetime of the application and does not depend on individual components.

It is important to distinguish between them to avoid memory leaks and incorrect behavior:

• The local context may contain references to UI and resources that should be released when the component is destroyed.
• The application context is safe to use for operations that do not depend on the UI, such as accessing resources or starting services.

For example, passing a local context to a long-lived object can lead to a memory leak, as the Activity cannot be destroyed.