41 lines
2.1 KiB
Plaintext
41 lines
2.1 KiB
Plaintext
page.title=Resources and Assets
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@jd:body
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<div id="qv-wrapper">
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<div id="qv">
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<h2>Key classes</h2>
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<ol>
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<li>{@link android.content.res.Resources}</li>
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<li>{@link android.content.res.AssetManager}</li>
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</ol>
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</div>
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</div>
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<p>Resources are an integral part of an Android application.
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In general, these are external elements that you want to include and reference within your application,
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like images, audio, video, text strings, layouts, themes, etc. Every Android application contains
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a directory for resources (<code>res/</code>) and a directory for assets (<code>assets/</code>).
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Assets are used less often, because their applications are far fewer. You only need to save data
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as an asset when you need to read the raw bytes. The directories for resources and assets both
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reside at the top of an Android project tree, at the same level as your source code directory
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(<code>src/</code>).</p>
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<p>The difference between "resources" and "assets" isn't much on the surface, but in general,
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you'll use resources to store your external content much more often than you'll use assets.
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The real difference is that anything
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placed in the resources directory will be easily accessible from your application from the
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<code>R</code> class, which is compiled by Android. Whereas, anything placed in the assets
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directory will maintain its raw file format and, in order to read it, you must use the
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{@link android.content.res.AssetManager} to read the file as a stream of bytes. So keeping
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files and data in resources (<code>res/</code>) makes them easily accessible.</p>
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<p>Within the documents of this topic, you'll find information on the kinds of standard resources
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that are typically used in an Android application and how to reference them from you code.
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<a href="{@docRoot}guide/topics/resources/resources-i18n.html">Resources and Internationalization</a>
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is where you should start, to learn more about how Android utilizes project resources. Then, the
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<a href="{@docRoot}guide/topics/resources/available-resources.html">Available Resource Types</a>
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document offers a summary of various resource types and a reference to their specifications.
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</p>
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