Introducing the Jetpack Lifecycle components

It's no secret by now that components within the Android framework have certain lifecycles that we must respect when we need to interact with them. The most common components that own a lifecycle are Activity and Fragment.

As programmers, we cannot control the lifecycle of Android components because their lifecycle is defined and controlled by the system or the way Android works.

Going back to Lifecycle components, a very good example is the entry point to our Android application, represented by the Activity component, which, as we know, possesses a lifecycle. This means that in order to create a screen in our Android application, we need to create an Activity component – from this point on, all our components must be aware of its lifecycle to not leak any memory.

Now, when we say that Activity has a system-defined lifecycle, this actually translates into our Activity class inheriting from ComponentActivity(), which...