Chapter 24: Design Patterns, Multiple Layouts, and Fragments

We have come a long way since the start when we were just setting up Android Studio. Back then, we went through everything step by step, but as we have proceeded we have tried to show not just how to add x to y or feature a to app b, but to enable you to use what you have learned in your own ways to bring your own ideas to life.

At first glance, this chapter might seem dry and technical, but this chapter is more about your future apps than anything in the book so far. We will look at a few aspects of Java and Android that you can use as a framework or template to make evermore exciting and complex apps at the same time as keeping the code manageable. This is the key to successful modern apps. Furthermore, I will suggest areas of further study that there is simply not enough room to even scratch the surface of in this book.

In this chapter, we will learn about the following:

• Patterns and model-view-controller...