4.4. Building the App’s GUI

In this section, you’ll build the GUI for the Tip Calculator using the ADT Plugin tools. At the end of this section, we’ll present the XML that the ADT Plugin generates for this app’s layout. We’ll show the precise steps for building the GUI. In later chapters, we’ll focus primarily on new features in each app’s GUI and present the final XML layouts, highlighting the portions of the XML we modified. [Note: As you work your way through this section, keep in mind that the GUI will not look like the one shown in Fig. 4.1 until you’ve completed the majority of the steps in Sections 4.4.2–4.4.4.]

4.4.1. TableLayout Introduction