1 page.title=Creating Backward-Compatible UIs 2 page.tags="widgets","support" 3 4 trainingnavtop=true 5 startpage=true 6 7 @jd:body 8 9 <div id="tb-wrapper"> 10 <div id="tb"> 11 12 <h2>Dependencies and prerequisites</h2> 13 14 <ul> 15 <li>API level 5</li> 16 <li><a href="{@docRoot}tools/extras/support-library.html">The Android Support Package</a></li> 17 </ul> 18 19 <h2>You should also read</h2> 20 21 <ul> 22 <li><a href="{@docRoot}resources/samples/ActionBarCompat/index.html">ActionBarCompat</a></li> 23 <li><a href="http://android-developers.blogspot.com/2010/07/how-to-have-your-cupcake-and-eat-it-too.html">How to have your (Cup)cake and eat it too</a></li> 24 </ul> 25 26 <h2>Try it out</h2> 27 28 <div class="download-box"> 29 <a href="http://developer.android.com/shareables/training/TabCompat.zip" 30 class="button">Download the sample app</a> 31 <p class="filename">TabCompat.zip</p> 32 </div> 33 34 </div> 35 </div> 36 37 <p>This class demonstrates how to use UI components and APIs available in newer versions of Android in a backward-compatible way, ensuring that your application still runs on previous versions of the platform.</p> 38 39 <p>Throughout this class, the new <a href="{@docRoot}guide/topics/ui/actionbar.html#Tabs">Action Bar Tabs</a> feature introduced in Android 3.0 (API level 11) serves as the guiding example, but you can apply these techniques to other UI components and API features.</p> 40 41 <h2 id="lessons">Lessons</h2> 42 43 44 <dl> 45 <dt><strong><a href="abstracting.html">Abstracting the New APIs</a></strong></dt> 46 <dd>Determine which features and APIs your application needs. Learn how to define application-specific, intermediary Java interfaces that abstract the implementation of the UI component to your application.</dd> 47 48 <dt><strong><a href="new-implementation.html">Proxying to the New APIs</a></strong></dt> 49 <dd>Learn how to create an implementation of your interface that uses newer APIs.</dd> 50 51 <dt><strong><a href="older-implementation.html">Creating an Implementation with Older APIs</a></strong></dt> 52 <dd>Learn how to create a custom implementation of your interface that uses older APIs.</dd> 53 54 <dt><strong><a href="using-component.html">Using the Version-Aware Component</a></strong></dt> 55 <dd>Learn how to choose an implementation to use at runtime, and begin using the interface in your application.</dd> 56 </dl> 57
