In this part …

This part consists of three chapters that show you what you need in order to design and build the foundation of an application. Chapter 4 helps you choose the right SDK level, and Chapters 5 and 6 cover user interface components in depth.

Chapter 7 shows you how to properly design an Android application. This chapter also covers the basics of object orientation and then introduces responsibility-driven design, an essential technique and best practice for good object-oriented software design. We then round out your design skills by showing you how to use a pattern-based approach to enhance this basic design to layer it on the Android framework.