14. Weather Viewer App

Objectives

In this chapter you’ll:

• Use WeatherBug^® web services to get the current conditions and five-day forecast for a specified city and process that data using an Android 3.x JsonReader.

• Use various types of Fragments to create reusable components and make better use of the screen real estate in a tablet app.

• Implement tabbed navigation using the Android 3.x ActionBar.

• Create a companion app widget that can be installed on the user’s home screen.

• Broadcast changes of the app’s preferred city to the companion app widget.

Outline

14.1 Introduction

14.2 Test-Driving the Weather Viewer App

14.3 Technologies Overview

14.4 Building the App’s GUI and Resource Files

14.4.1 AndroidManifest.xml

14.4.2 WeatherViewerActivity’s main.xml Layout