requireActivity
requireActivity is a method available within certain Android components, primarily Fragments, that provides a direct reference to the Activity hosting it. It is a non-null assertion, meaning it will throw a NullPointerException if the Activity is not currently available. This contrasts with the older `getActivity()` method, which could return null and required explicit null checks.
The primary purpose of `requireActivity()` is to simplify code and prevent common bugs related to Activity lifecycles.
However, `requireActivity()` should be used with caution. If a Fragment is detached from its Activity or if