The androidx namespace comprises the Android Jetpack libraries. Like the Support Library, libraries in the androidx namespace ship separately from the Android platform and provide backward compatibility across Android releases.| Android Developers
An Activity is an application component that provides a screen with which users can interact in order to do something, such as dial the phone, take a photo, send an email, or view a map. Each activity is given a window in which to draw its user interface…| Android Developers
ViewModel lets you manage your UI's data in a lifecycle-aware fashion.| Android Developers
My favorite thing about working at Wave is knowing that what we’re building makes a massive, tangible improvement to the lives of millions of people. This matters to me for a few reasons: It pushes me to do my best work. When I know that what I’m working on is going to be useful to lots of people, it makes it easy to focus on what’s important, and to stay determined when things aren’t going well.| www.wave.com