| <body> |
| <p>Contains the components necessary to create "app widgets", which users can embed in other |
| applications (such as the home screen) to quickly access application data and services without |
| launching a new activity.</p> |
| |
| <p>For more information, see the |
| <a href="{@docRoot}guide/topics/appwidgets/index.html">App Widgets</a> guide.</p> |
| {@more} |
| |
| <p>The behavior of an app widget is published by an "app widget provider." An "app widget host" is |
| a component that can contain app widgets (such as the Home screen).</p> |
| |
| <p>Any application can publish app widgets (as an app widget provider). All an application needs to |
| do to publish an app widget is |
| provide a {@link android.content.BroadcastReceiver} that receives the {@link |
| android.appwidget.AppWidgetManager#ACTION_APPWIDGET_UPDATE} intent |
| and provide some metadata about the app widget. Android provides the |
| {@link android.appwidget.AppWidgetProvider} class, which extends {@link |
| android.content.BroadcastReceiver}, as a convenience class to define the app widget behavrio and aid |
| in handling the broadcasts.</p> |
| |
| <p>App widget hosts are the containers in which widgets can be placed. Most of the look and feel |
| details are left up to the widget hosts. For example, the home screen has one way of viewing |
| widgets, but the lock screen could also contain widgets, and it would have a different way of |
| adding, removing and otherwise managing widgets.</p> |
| |
| <p>For information about implementing an app widget host, see the {@link |
| android.appwidget.AppWidgetHost} class.</p> |
| |
| </body> |
| |
