The Android SDK provides many samples and demo applications to help you learn the ropes of Android Development. Many of these demo applications are provided as part of the Android SDK and are located in the /samples subdirectory of the Android SDK.You can find more sample applications on the Android Developer website under the Resources tab.
On some Android SDK installations, the sample applications must be downloaded separately by updating your SDK installation using the Android SDK and AVD Manager. All sample applications can also be found on the Android Developer website.
Some of the most straightforward demo applications to take a look at are
■ ApiDemos: A menu-driven utility that demonstrates a wide variety of Android APIs, from user interface widgets to application lifecycle components such as services, alarms, and notifications.You can read a nice write-up about this application at http://developer.android.com/resources/samples/ApiDemos/.
■ NotePad: A simple list application that demonstrates database access and Live Folder functionality.You can read a nice write-up about this application at http:// developer.android.com/resources/samples/NotePad/.
There are numerous other sample applications, but they demonstrate very specific Android features that are discussed later in this book.
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