<p>The API Demos application includes a variety of small applications that illustrate the use of various Android APIs. It includes samples of: </p> <ul> <li>Notifications</li> <li>Alarms</li> <li>Progress Dialogs</li> <li>Intents</li> <li>Menus</li> <li>Search</li> <li>Persistent application state</li> <li>Preferences</li> <li>Background Services</li> <li>App Widgets</li> <li>Voice Recognition</li> <li>And many many more...</li> </ul> <p>You'll notice that all the samples are included in a single Android project, so the application code and other resource files for all samples are batched together. To help you find the code that's relevant to you, here's a directory that points to the program code for the different topics included in the project:</p> <ul> <li><a href="src/com/example/android/apis/animation/index.html">Animation</a></li> <li><a href="src/com/example/android/apis/app/index.html">App</a></li> <li><a href="src/com/example/android/apis/appwidget/index.html">App Widgets</a></li> <li><a href="src/com/example/android/apis/content/index.html">Content</a></li> <li><a href="src/com/example/android/apis/graphics/index.html">Graphics</a></li> <li><a href="src/com/example/android/apis/media/index.html">Media</a></li> <li><a href="src/com/example/android/apis/os/index.html">OS</a></li> <li><a href="src/com/example/android/apis/text/index.html">Text</a></li> <li><a href="src/com/example/android/apis/view/index.html">Views</a></li> </ul>