By now you are familiar with the basics of creating a new project, programming, and refactoring. It is time to create an Android application, otherwise known as an app. This chapter introduces the first of three lab projects. These labs are intended to familiarize you with using Android Studio in the context of developing an app. In this project, you will develop a simple Android app to manage a list of items you want to remember. The core functionality will allow you to create and delete reminders and flag certain reminders as important. An important item will be emphasized by an orange tab to the left of the reminder’s text. The app will incorporate an action bar menu, context menus, a local database for persistence, and multiple selection on devices that support multiple selection.