| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <title> |
| |
| Android Design - Backwards Compatibility |
| </title> |
| <link rel="shortcut icon" type="image/x-icon" href="/favicon.ico"> |
| <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto:regular,medium,thin,italic,mediumitalic"> |
| <link rel="stylesheet" href="../static/yui-3.3.0-reset-min.css"> |
| <link rel="stylesheet" href="../static/default.css"> |
| |
| </head> |
| <body> |
| |
| <div id="page-container"> |
| |
| <div id="page-header"><a href="../index.html">Android Design</a></div> |
| |
| <div id="main-row"> |
| |
| <ul id="nav"> |
| |
| <li class="nav-section"> |
| <div class="nav-section-header"><a href="../index.html">Get Started</a></div> |
| <ul> |
| <li><a href="../get-started/creative-vision.html">Creative Vision</a></li> |
| <li><a href="../get-started/principles.html">Design Principles</a></li> |
| <li><a href="../get-started/ui-overview.html">UI Overview</a></li> |
| </ul> |
| </li> |
| |
| <li class="nav-section"> |
| <div class="nav-section-header"><a href="../style/index.html">Style</a></div> |
| <ul> |
| <li><a href="../style/devices-displays.html">Devices and Displays</a></li> |
| <li><a href="../style/themes.html">Themes</a></li> |
| <li><a href="../style/touch-feedback.html">Touch Feedback</a></li> |
| <li><a href="../style/metrics-grids.html">Metrics and Grids</a></li> |
| <li><a href="../style/typography.html">Typography</a></li> |
| <li><a href="../style/color.html">Color</a></li> |
| <li><a href="../style/iconography.html">Iconography</a></li> |
| <li><a href="../style/writing.html">Writing Style</a></li> |
| </ul> |
| </li> |
| |
| <li class="nav-section"> |
| <div class="nav-section-header"><a href="../patterns/index.html">Patterns</a></div> |
| <ul> |
| <li><a href="../patterns/new-4-0.html">New in Android 4.0</a></li> |
| <li><a href="../patterns/gestures.html">Gestures</a></li> |
| <li><a href="../patterns/app-structure.html">App Structure</a></li> |
| <li><a href="../patterns/navigation.html">Navigation</a></li> |
| <li><a href="../patterns/actionbar.html">Action Bar</a></li> |
| <li><a href="../patterns/multi-pane-layouts.html">Multi-pane Layouts</a></li> |
| <li><a href="../patterns/swipe-views.html">Swipe Views</a></li> |
| <li><a href="../patterns/selection.html">Selection</a></li> |
| <li><a href="../patterns/notifications.html">Notifications</a></li> |
| <li><a href="../patterns/compatibility.html">Compatibility</a></li> |
| <li><a href="../patterns/pure-android.html">Pure Android</a></li> |
| </ul> |
| </li> |
| |
| <li class="nav-section"> |
| <div class="nav-section-header"><a href="../building-blocks/index.html">Building Blocks</a></div> |
| <ul> |
| <li><a href="../building-blocks/tabs.html">Tabs</a></li> |
| <li><a href="../building-blocks/lists.html">Lists</a></li> |
| <li><a href="../building-blocks/grid-lists.html">Grid Lists</a></li> |
| <li><a href="../building-blocks/scrolling.html">Scrolling</a></li> |
| <li><a href="../building-blocks/spinners.html">Spinners</a></li> |
| <li><a href="../building-blocks/buttons.html">Buttons</a></li> |
| <li><a href="../building-blocks/text-fields.html">Text Fields</a></li> |
| <li><a href="../building-blocks/seek-bars.html">Seek Bars</a></li> |
| <li><a href="../building-blocks/progress.html">Progress & Activity</a></li> |
| <li><a href="../building-blocks/switches.html">Switches</a></li> |
| <li><a href="../building-blocks/dialogs.html">Dialogs</a></li> |
| <li><a href="../building-blocks/pickers.html">Pickers</a></li> |
| </ul> |
| </li> |
| |
| <li class="nav-section"> |
| <div class="nav-section-header empty"><a href="../downloads/index.html">Downloads</a></div> |
| </li> |
| |
| <li> |
| <div id="back-dac-section"><a href="../../index.html">Developers</a></div> |
| </li> |
| |
| </ul> |
| |
| <div id="content"> |
| |
| |
| <div class="layout-content-row content-header"> |
| <div class="layout-content-col span-9"> |
| <h2>Backwards Compatibility</h2> |
| </div> |
| <div class="paging-links layout-content-col span-4"> |
| <a href="#" class="prev-page-link">Previous</a> |
| <a href="#" class="next-page-link">Next</a> |
| </div> |
| </div> |
| |
| |
| |
| |
| <p>Significant changes in Android 3.0 included:</p> |
| <ul> |
| <li>Deprecation of navigation hardware keys (Back, Menu, Search, Home) in favor of handling navigation |
| via virtual controls (Back, Home, Recents).</li> |
| <li>Robust pattern for the use of menus in action bars.</li> |
| </ul> |
| <p>Android 4.0 brings these changes for tablets to the phone platform.</p> |
| |
| <h2 id="older-hardware">Adapting Android 4.0 to Older Hardware and Apps</h2> |
| |
| <div class="layout-content-row"> |
| <div class="layout-content-col span-6"> |
| |
| <h4>Phones with virtual navigation controls</h4> |
| <p>Android apps written for Android 3.0 and later display actions in the action bar. Actions that don't |
| fit in the action bar or aren't important enough to be displayed at the top level appear in the |
| action overflow.</p> |
| <p>Users access the action overflow by touching it in the action bar.</p> |
| |
| </div> |
| <div class="layout-content-col span-7"> |
| |
| <img src="../static/content/compatibility_virtual_nav.png"> |
| |
| </div> |
| </div> |
| |
| <div class="layout-content-row"> |
| <div class="layout-content-col span-6"> |
| |
| <h4>Phones with physical navigation keys</h4> |
| <p>Android phones with traditional navigation hardware keys don't display the virtual navigation bar at |
| the bottom of the screen. Instead, the action overflow is available from the menu hardware key. The |
| resulting actions popup has the same style as in the previous example, but is displayed at the bottom of the screen.</p> |
| |
| </div> |
| <div class="layout-content-col span-7"> |
| |
| <img src="../static/content/compatibility_physical_buttons.png"> |
| |
| </div> |
| </div> |
| |
| <div class="layout-content-row"> |
| <div class="layout-content-col span-6"> |
| |
| <h4>Legacy apps on phones with virtual navigation controls</h4> |
| <p>When you run an app that was built for Android 2.3 or earlier on a phone with virtual navigation |
| controls, an action overflow control appears at the right side of the virtual navigation bar. You |
| can touch the control to display the app's actions in the traditional Android menu styling.</p> |
| |
| </div> |
| <div class="layout-content-col span-7"> |
| |
| <img src="../static/content/compatibility_legacy_apps.png"> |
| |
| </div> |
| </div> |
| |
| |
| |
| |
| <div class="layout-content-row content-footer"> |
| <div class="paging-links layout-content-col span-9"> </div> |
| <div class="paging-links layout-content-col span-4"> |
| <a href="#" class="prev-page-link">Previous</a> |
| <a href="#" class="next-page-link">Next</a> |
| </div> |
| </div> |
| |
| </div> |
| |
| </div> |
| |
| <div id="page-footer"> |
| |
| <p id="copyright"> |
| Except as noted, this content is licensed under |
| <a href="http://creativecommons.org/licenses/by/2.5/"> |
| Creative Commons Attribution 2.5</a>.<br> |
| For details and restrictions, see the |
| <a href="http://developer.android.com/license.html">Content License</a>. |
| </p> |
| |
| <p> |
| <a href="http://www.android.com/terms.html">Site Terms of Service</a> – |
| <a href="http://www.android.com/privacy.html">Privacy Policy</a> – |
| <a href="http://www.android.com/branding.html">Brand Guidelines</a> |
| </p> |
| |
| </div> |
| </div> |
| |
| <script src="../static/jquery-1.6.2.min.js"></script> |
| <script> |
| var SITE_ROOT = '../'; |
| </script> |
| <script src="../static/default.js"></script> |
| |
| |
| <script type="text/javascript"> |
| var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); |
| document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); |
| </script> |
| <script type="text/javascript"> |
| var pageTracker = _gat._getTracker("UA-5831155-1"); |
| pageTracker._trackPageview(); |
| </script> |
| </body> |
| </html> |