| page.title=Interacting with Other Apps |
| page.tags="intents","activity" |
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| startpage=true |
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| <div id="tb-wrapper"> |
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| <h2>Dependencies and prerequisites</h2> |
| <ul> |
| <li>Basic understanding of the Activity lifecycle (see <a |
| href="{@docRoot}training/basics/activity-lifecycle/index.html">Managing the Activity |
| Lifecycle</a>)</li> |
| </ul> |
| |
| |
| <h2>You should also read</h2> |
| <ul> |
| <li><a href="{@docRoot}training/sharing/index.html">Sharing Content</a></li> |
| <li><a |
| href="http://android-developers.blogspot.com/2009/11/integrating-application-with-intents.html"> |
| Integrating Application with Intents (blog post)</a></li> |
| <li><a href="{@docRoot}guide/components/intents-filters.html">Intents and Intent |
| Filters</a></li> |
| </ul> |
| |
| </div> |
| </div> |
| |
| <p>An Android app typically has several <a |
| href="{@docRoot}guide/components/activities.html">activities</a>. Each activity displays a |
| user interface that allows the user to perform a specific task (such as view a map or take a photo). |
| To take the user from one activity to another, your app must use an {@link |
| android.content.Intent} to define your app's "intent" to do something. When you pass an |
| {@link android.content.Intent} to the system with a method such as {@link |
| android.app.Activity#startActivity startActivity()}, the system uses the {@link |
| android.content.Intent} to identify and start the appropriate app component. Using intents even |
| allows your app to start an activity that is contained in a separate app.</p> |
| |
| <p>An {@link android.content.Intent} can be <em>explicit</em> in order to start a specific component |
| (a specific {@link android.app.Activity} instance) or <em>implicit</em> in order to start any |
| component that can handle the intended action (such as "capture a photo").</p> |
| |
| <p>This class shows you how to use an {@link android.content.Intent} to perform some basic |
| interactions with other apps, such as start another app, receive a result from that app, and |
| make your app able to respond to intents from other apps.</p> |
| |
| <h2>Lessons</h2> |
| |
| <dl> |
| <dt><b><a href="sending.html">Sending the User to Another App</a></b></dt> |
| <dd>Shows how you can create implicit intents to launch other apps that can perform an |
| action.</dd> |
| <dt><b><a href="result.html">Getting a Result from an Activity</a></b></dt> |
| <dd>Shows how to start another activity and receive a result from the activity.</dd> |
| <dt><b><a href="filters.html">Allowing Other Apps to Start Your Activity</a></b></dt> |
| <dd>Shows how to make activities in your app open for use by other apps by defining |
| intent filters that declare the implicit intents your app accepts.</dd> |
| </dl> |
| |