Summary

In this chapter, we have learned that it is not only us that can call our code; the operating system can also call the code contained within the functions that we have overridden. By adding the appropriate code to the various overridden lifecycle functions, we can be sure that the right code will be executed at the right time.

What we need to do now is to learn how to write some more Kotlin code. In the next chapter, we will start to focus on Kotlin and, because we have such a good grounding already in Android, we will have no problem practicing and using everything we learn.