7d711b1995
Training classes from top to bottom of "Connectivity and the Cloud" Change-Id: I42afb34b2a3c64d0d7a325027a19e0ab7a1847a4
64 lines
2.6 KiB
Plaintext
64 lines
2.6 KiB
Plaintext
page.title=Interacting with Other Apps
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page.tags="intents","activity"
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trainingnavtop=true
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startpage=true
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@jd:body
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<div id="tb-wrapper">
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<div id="tb">
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<h2>Dependencies and prerequisites</h2>
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<ul>
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<li>Basic understanding of the Activity lifecycle (see <a
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href="{@docRoot}training/basics/activity-lifecycle/index.html">Managing the Activity
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Lifecycle</a>)</li>
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</ul>
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<h2>You should also read</h2>
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<ul>
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<li><a href="{@docRoot}training/sharing/index.html">Sharing Content</a></li>
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<li><a
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href="http://android-developers.blogspot.com/2009/11/integrating-application-with-intents.html">
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Integrating Application with Intents (blog post)</a></li>
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<li><a href="{@docRoot}guide/components/intents-filters.html">Intents and Intent
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Filters</a></li>
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</ul>
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</div>
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</div>
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<p>An Android app typically has several <a
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href="{@docRoot}guide/components/activities.html">activities</a>. Each activity displays a
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user interface that allows the user to perform a specific task (such as view a map or take a photo).
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To take the user from one activity to another, your app must use an {@link
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android.content.Intent} to define your app's "intent" to do something. When you pass an
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{@link android.content.Intent} to the system with a method such as {@link
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android.app.Activity#startActivity startActivity()}, the system uses the {@link
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android.content.Intent} to identify and start the appropriate app component. Using intents even
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allows your app to start an activity that is contained in a separate app.</p>
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<p>An {@link android.content.Intent} can be <em>explicit</em> in order to start a specific component
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(a specific {@link android.app.Activity} instance) or <em>implicit</em> in order to start any
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component that can handle the intended action (such as "capture a photo").</p>
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<p>This class shows you how to use an {@link android.content.Intent} to perform some basic
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interactions with other apps, such as start another app, receive a result from that app, and
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make your app able to respond to intents from other apps.</p>
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<h2>Lessons</h2>
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<dl>
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<dt><b><a href="sending.html">Sending the User to Another App</a></b></dt>
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<dd>Shows how you can create implicit intents to launch other apps that can perform an
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action.</dd>
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<dt><b><a href="result.html">Getting a Result from an Activity</a></b></dt>
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<dd>Shows how to start another activity and receive a result from the activity.</dd>
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<dt><b><a href="filters.html">Allowing Other Apps to Start Your Activity</a></b></dt>
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<dd>Shows how to make activities in your app open for use by other apps by defining
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intent filters that declare the implicit intents your app accepts.</dd>
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</dl>
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