In this chapter, we have learned about the component's lifecycle. We don't need to remember every step that is executed in each phase, but we should know the methods that we can override in our subclasses, so we can add specific functionality in one of the three phases. When creating our custom components, it's very important to remember that we need to destroy all our references and internal components that we have created. This way we'll free memory. We've also learned about the containers and layouts. Now we know how to add other components to a container and arrange them according to our needs.
In the next chapter, we're going to talk about the data package. We'll learn about the models, stores, associations, and so many more exciting things.