Introduction The most important question when we create a new Android application from scratch is which architecture should we choose. Developers can choose between MVC, MVP, MVI and MVVM (among others). These architectural patterns are popular for Android development. For years, developers had to implement from scratch, by themselves, the application skeleton without any SDK support. After many years, at the annual Google I/O event, in May 2017, Google presented the Architecture Guide, in which object lifecycle is the most important functionality to support from the point of view of Android OS. During that I/O, Google presented some examples of Android Architecture Blueprints.