14f51a724e
stage: https://android-dot-devsite.googleplex.com/training/basics/firstapp/creating-project.html Change-Id: I40ce201553226fa36477e54b82721bc6cc85b88b
103 lines
4.3 KiB
Plaintext
103 lines
4.3 KiB
Plaintext
page.title=Creating an Android Project
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page.tags=project setup
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helpoutsWidget=true
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trainingnavtop=true
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next.title=Running Your App
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next.link=running-app.html
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@jd:body
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<!-- This is the training bar -->
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<div id="tb-wrapper">
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<div id="tb">
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<h2>You should also read</h2>
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<ul>
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<li><a href="{@docRoot}studio/projects/index.html">Projects Overview</a></li>
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</ul>
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</div>
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</div>
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<p>This lesson shows you how to create a new Android project with
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<a href="{@docRoot}studio/index.html">Android Studio</a> and describes some
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of the files in the project.</p>
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<ol>
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<li>In Android Studio, create a new project:
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<ul>
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<li>If you don't have a project opened, in the <strong>Welcome to Android Studio</strong> window, click <strong>
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Start a new Android Studio project</strong>.</li>
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<li>If you have a project opened, select <strong>File > New Project</strong>.</li>
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</ul>
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</li>
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<li>In the <b>New Project</b> screen, enter the following values:</p>
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<ul>
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<li><strong>Application Name</strong>: "My First App" </li>
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<li><strong>Company Domain</strong>: "example.com"</li>
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</ul>
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<p>Android Studio fills in the package name and project location for you,
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but you can edit these if you'd like.
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</li>
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<li>Click <b>Next</b>.</li>
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<li>In the <b>Target Android Devices</b> screen, keep the default values and
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click <b>Next</b>.
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<p>The <b>Minimum Required SDK</b> is the earliest version of Android that your app supports,
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which is indicated by the <a href="{@docRoot}guide/topics/manifest/uses-sdk-element.html#ApiLevels">
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API level</a>. To support as many devices as possible, you should set this to the lowest
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version available that allows your app to provide its core feature set. If any feature of your
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app is possible only on newer versions of Android and it's not critical to the core
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feature set, enable that feature only when running on the versions that support it (see
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<a href="{@docRoot}training/basics/supporting-devices/platforms.html">
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Supporting Different Platform Versions</a>).</p>
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</li>
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<li>In the <strong>Add an Activity to Mobile</strong> screen, select <strong>Empty
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Activity</strong> and click <strong>Next</strong>.
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</li>
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<li>In the <strong>Customize the Activity</strong> screen, keep the default values
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and click <strong>Finish</strong>.
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</ol>
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<p>After some processing, Android Studio opens and displays a "Hello World" app
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with default files. You will add functionality to some of
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these files in the following lessons.</p>
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<p>Now take a moment to review the most important files. First, be sure that
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the <b>Project</b> window is open (select <b>View > Tool Windows > Project</b>)
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and the <b>Android</b> view is selected from the drop-down list at the top.
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You can then see the following files:</p>
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<dl>
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<dt><b>app > java > com.example.myfirstapp > MainActivity.java</b></dt>
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<dd>This file appears in Android Studio after the New Project wizard finishes.
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It contains the class definition for the activity you created earlier. When you build
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and run the app, the {@link android.app.Activity} starts and loads the
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layout file that says "Hello World!"</dd>
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<dt><b>app > res > layout > activity_main.xml</b></dt>
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<dd>This XML file defines the layout of the activity. It contains a {@code TextView}
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element with the text "Hello world!".</dd>
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<dt><b>app > manifests > AndroidManifest.xml</b></dt>
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<dd>The <a href="{@docRoot}guide/topics/manifest/manifest-intro.html">manifest file</a> describes
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the fundamental characteristics of the app and defines each of its components. You'll revisit
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this file as you follow these lessons and add more components to your app.</dd>
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<dt><b>Gradle Scripts > build.gradle</b></dt>
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<dd>Android Studio uses Gradle to compile and build your app. There is a <code>build.gradle</code>
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file for each module of your project, as well as a <code>build.gradle</code> file for the entire
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project. Usually, you're only interested in the <code>build.gradle</code> file for the module.
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in this case the <code>app</code> or application module. For more information about this file,
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see <a href="{@docRoot}studio/build/index.html">Building Your Project with Gradle</a>.</dd>
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</dl>
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<p>
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To run the app, continue to the <a href="running-app.html">next lesson</a>.
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</p> |