ExpandableLayout can expand / collapse child views.
from The Android Arsenal
Give your users a fantastic experience by providing new and exciting features like: P2P, Proximity, Mesh and Offline connectivity.
By integrating the Bridgefy SDK, app developers ensure that payments, messaging, location-sharing, and ride-hailing apps are still available when people don't have access to data.
Android Architecture Components (AAC) is a new collection of libraries that contains the lifecycle-aware components. It can solve problems with configuration changes, supports data persistence, reduces boilerplate code, helps to prevent memory leaks and simplifies async data loading into your UI. I can’t say that it brings absolutely new approaches for solving these issues, but, finally, we have a formal, single and official direction.
The MSAL library for Android gives your app the ability to begin using the Microsoft Cloud by supporting Microsoft Azure Active Directory and Microsoft Accounts in a converged experience using industry standard OAuth2 and OpenID Connect. The library also supports Azure AD B2C.