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+page.title=Android Studio
+@jd:body
+
+<div id="qv-wrapper">
+<div id="qv">
+
+ <h2>In this document</h2>
+ <ol>
+ <li><a href="#project-structure">Project and File Structure</a></li>
+ <li><a href="#build-system">Android Build System</a></li>
+ <li><a href="#debug-perf">Debug and Performance</a></li>
+ <li><a href="#install-updates">Installation, Setup, and Update Management</a></li>
+ <li><a href="#other">Other Highlights</a></li>
+
+
+ </ol>
+
+ <h2>See also</h2>
+ <ol>
+ <li><a href="{@docRoot}tools/sdk/index.html">Download Android Studio</a></li>
+ <li><a href="{@docRoot}tools/basics/index.html">Android Studio</a></li>
+ <li><a href="http://wiki.jetbrains.net/intellij/Android">IntelliJ IDEA Android Tutorials</a></li>
+ <li><a href="http://confluence.jetbrains.com/display/IntelliJIDEA/FAQ+on+Migrating+to+IntelliJ+IDEA">IntelliJ FAQ on migrating to IntelliJ IDEA</a></li>
+ <li><a href="{@docRoot}tools/buildsystem/index.html">Build System</a></li>
+ </ol>
+
+</div>
+</div>
+
+
+<a class="notice-developers-video"
+href="http://developers.google.com/events/io/sessions/324603352">
+<div>
+ <h3>Video</h3>
+ <p>What's New in Android Developer Tools</p>
+</div>
+</a
+
+
+<div style="position:relative;height:0">
+<div style="position:absolute;width:420px">
+</div>
+</div>
+
+<p>Android Studio is a new Android development environment based on IntelliJ IDEA. It is the official
+Android IDE. On top of the capabilities you expect from IntelliJ, Android Studio offers:</p>
+
+<ul>
+ <li>Flexible Gradle-based build system</li>
+ <li>Build variants and multiple <code>apk</code> file generation</li>
+ <li>Updated AVD Manager with support for custom device skins</li>
+ <li>Expanded template support for Google Services and new device types</li>
+ <li>Rich layout editor with support for drag and drop theme editing</li>
+ <li>Lint tools to catch performance, usability, version compatibility, and other problems</li>
+ <li>ProGuard and app-signing capabilities</li>
+ <li>Built-in support for <a
+ href="http://developers.google.com/cloud/devtools/android_studio_templates/"
+ class="external-link">Google Cloud Platform</a>, making it easy to integrate Google Cloud
+ Messaging and App Engine</li>
+ <li>And much more ...</li>
+</ul>
+
+<p>If you're ready, go here to get started with
+<a href="{@docRoot}training/basics/firstapp/index.html">Building Your First App</a>. </p>
+
+<p>If you're unfamiliar with the Android Studio or the IntelliJ IDEA interface, or just wondering
+about what's new, you might be interested in exploring some common tasks before building your app.
+</p>
+
+<p>For starters, Android Studio installs with a basic <em>hello world</em> app to introduce you to
+the basic Android Studio project structure and navigation. This section highlights the Android
+Studio features. </p>
+
+
+
+<h2 id="project-structure">Project and File Structure</h2>
+
+<h3 id="project-view"><em>Android</em> Project View</h3>
+<p>By default, Android Studio displays your profile files in the <em>Android</em> project view. This
+view shows a flattened version of your project's structure that provides quick access to the key
+source files of Android projects and helps you work with the new
+<a href="{@docRoot}sdk/installing/studio-build.html">Gradle-based build system</a>.
+The Android project view:</p>
+
+<ul>
+ <li>Groups the build files for all modules at the top level of the project hierarchy.</li>
+ <li>Shows the most important source directories at the top level of the module hierarchy.</li>
+ <li>Groups all the manifest files for each module.</li>
+ <li>Shows resource files from all Gradle source sets.</li>
+ <li>Groups resource files for different locales, orientations, and screen types in a single
+ group per resource type.</li>
+</ul>
+
+ <img src="{@docRoot}images/tools/projectview01.png" />
+ <p class="img-caption"><strong>Figure 1:</strong> Show the Android project view.</p>
+ <img src="{@docRoot}images/tools/studio-projectview_scripts.png" />
+ <p class="img-caption"><strong>Figure 2:</strong> Project Build Files.</p>
+
+<p>The <em>Android</em> project view shows all the build files at the top level of the project
+hierarchy under <strong>Gradle Scripts</strong>. Each project module appears as a folder at the
+top level of the project hierarchy and contains these three elements at the top level:</p>
+
+<ul>
+ <li><code>java/</code> - Source files for the module.</li>
+ <li><code>manifests/</code> - Manifest files for the module.</li>
+ <li><code>res/</code> - Resource files for the module.</li>
+</ul>
+
+<p>For example, <em>Android</em> project view groups all the instances of the
+<code>ic_launcher.png</code> resource for different screen densities under the same element.</p>
+
+<p class="note"><strong>Note:</strong> The project structure on disk differs from this flattened
+representation. To switch to back the segregated project view, select <strong>Project</strong> from
+the <strong>Project</strong drop-down. </p>
+
+
+
+<h3>New Project and Directory Structure</h3>
+<p>When you use the <em>Project</em> view of a new project in Android Studio or
+(<a href="{@docRoot}tools/eclipse/migrate-adt.html"> a project migrated from Eclipse</a>), you
+should notice that the project structure appears different than you may be used to. Each
+instance of Android Studio contains a project with one or more application modules. Each
+application module folder contains the complete source sets for that module, including
+{@code src/main} and {@code src/androidTest} directories, resources, build
+file and the Android manifest. For the most part, you will need to modify the files under each
+module's {@code src/main} directory for source code updates, the gradle.build file for build
+specification and the files under {@code src/androidTest} directory for test case creation.
+
+ <p> <img src="{@docRoot}images/tools/studio-project-layout.png" alt="" /></p>
+ <p> <class="img-caption"><strong>Figure 3.</strong> Android Studio project structure</p>
+
+<p>For more information, see <a href="http://confluence.jetbrains.com/display/IntelliJIDEA/Project +Organization"class="external-link">IntelliJ project organization</a> and
+<a href="{@docRoot}tools/workflow/project/index.html">Managing Projects</a>.</p>
+
+
+<h3>Creating new files</h3>
+<p>You can quickly add new code and resource files by clicking the appropriate directory in the
+<strong>Project</strong> pane and pressing <code>ALT + INSERT</code> on Windows and Linux or
+<code>COMMAND + N</code> on Mac. Based on the type of directory selected, Android Studio
+offers to create the appropriate file type.</p>
+
+<p>For example, if you select a layout directory, press <code>ALT + INSERT</code> on Windows,
+and select <strong>Layout resource file</strong>, a dialog opens so you can name the file
+(you can exclude the {@code .xml} suffix) and choose a root view element. The editor then
+switches to the layout design editor so you can begin designing your layout.</p>
+
+
+
+<h2 id="build-system">Android Build System</h2>
+
+<h3>Android Build System</h3>
+<p>The Android build system is the toolkit you use to build, test, run and package
+your apps. This build system replaces the Ant system used with Eclipse ADT. It can run as an
+integrated tool from the Android Studio menu and independently from the command line. You can use
+the features of the build system to:</p>
+
+<ul>
+ <li>Customize, configure, and extend the build process.</li>
+ <li>Create multiple APKs for your app with different features using the same project and
+ modules.</li>
+ <li>Reuse code and resources across source sets.</li>
+</ul>
+
+<p>The flexibility of the Android build system enables you to achieve all of this without
+modifying your app's core source files. To build an Android Studio project, see
+<a href="{@docRoot}tools/building/building-studio.html">Building and Running from Android Studio</a>.
+To configure custom build settings in an Android Studio project, see
+<a href="{@docRoot}tools/gradle/configuring-studio-builds.html">Configure Android Studio Builds</a>.</p>
+
+
+<h3>Application ID for Package Identification </h3>
+<p>With the Android build system, the <em>applicationId</em> attribute is used to
+uniquely identify application packages for publishing. The application ID is set in the
+<em>android</em> section of the <code>build.gradle</code> file.
+</p>
+
+ <pre>
+ apply plugin: 'com.android.application'
+
+ android {
+ compileSdkVersion 19
+ buildToolsVersion "19.1"
+
+ defaultConfig {
+ <strong>applicationId "com.example.my.app"</strong>
+ minSdkVersion 15
+ targetSdkVersion 19
+ versionCode 1
+ versionName "1.0"
+ }
+ ...
+ </pre>
+
+<p class="note"><strong>Note:</strong> The <em>applicationId</em> is specified only in your
+build.gradle file, and not in the AndroidManifest.xml file.</p>
+
+<p>When using build variants, the build system enables you to to uniquely identify different
+packages for each product flavors and build types. The application ID in the build type is added as
+a suffix to those specified for the product flavors. </p>
+
+ <pre>
+ productFlavors {
+ pro {
+ applicationId = "com.example.my.pkg.pro"
+ }
+ free {
+ applicationId = "com.example.my.pkg.free"
+ }
+ }
+
+ buildTypes {
+ debug {
+ applicationIdSuffix ".debug"
+ }
+ }
+ ....
+ </pre>
+
+<p>The package name must still be specified in the manifest file. It is used in your source code
+to refer to your R class and to resolve any relative activity/service registrations. </p>
+
+ <pre>
+ <?xml version="1.0" encoding="utf-8"?>
+ <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ <strong>package="com.example.app"</strong>>
+ </pre>
+
+<p class="note"><strong>Note:</strong> If you have multiple manifests (for exmample, a product
+flavor specific manifest and a build type manifest), the package name is optional in those manifests.
+If it is specified in those manifests, the package name must be identical to the package name
+specified in the manifest in the <code>src/main/</code> folder. </p>
+
+<p>For more information about the build files and process, see
+<a href="{@docRoot}sdk/installing/studio-build.html">Build System Overview</a>.</p>
+
+
+
+
+<h2 id="debug-perf">Debug and Performance</h2>
+
+
+<h3>Android Virtual Device (AVD) Manager</h3>
+<p>AVD Manager has updated screens with links to help you select the most popular device
+configurations, screen sizes and resolutions for your app previews.</p>
+Click the <strong>Android Virtual Device Manager</strong>
+<img src="{@docRoot}images/tools/avd-manager-studio.png"
+style="vertical-align:bottom;margin:0;height:19px" /> in the toolbar to open it and create
+new virtual devices for running your app in the emulator.</p>
+
+<p>The AVD Manager comes with emulators for Nexus 6 and Nexus 9 devices and also supports
+creating custom Android device skins based on specific emulator properties and assigning those
+skins to hardware profiles. Android Studio installs the the Intel x86 Emulator Accelerator (HAXM)
+and creates a default emulator for quick app prototyping.</p>
+
+<p>For more information, see <a href="{@docRoot}tools/devices/managing-avds.html">Managing AVDs</a>.</p>
+
+
+
+<h3> Memory Monitor</h3>
+<p>Android Studio provides a memory monitor view so you can more easily monitor your
+app's memory usage to find deallocated objects, locate memory leaks and track the amount of
+memory the connected device is using. With your app running on a device or emulator, click the
+<strong>Memory Monitor</strong> tab in the lower right corner to launch the memory monitor. </p>
+
+ <img src="{@docRoot}images/tools/studio-memory-monitor.png" />
+ <p class="img-caption"><strong>Figure 5.</strong> Memory Monitor</p>
+
+
+
+<h3> New Lint inspections</h3>
+<p>Lint has several new checks to ensure:
+<ul>
+ <li><code> Cipher.getInstance()</code> is used with safe values</li>
+ <li>In custom Views, the associated declare-styleable for the custom view uses the same
+ base name as the class name.</li>
+ <li>Security check for fragment injection.</li>
+ <li>Where ever property assignment no longer works as expected.</li>
+ <li>Gradle plugin version is compatible with the SDK.</li>
+ <li>Right to left validation </li>
+ <li>Required API version</li>
+ <li>many others</li>
+</ul>
+
+<p>Hovering over a Lint error displays the full issue explanation inline for easy error
+resolution. There is also a helpful hyperlink at the end of the error message for additional
+error information.</p>
+
+<p>With Android Studio, you can run Lint for a specific build variant, or for all build variants.
+You can configure Lint by adding a <em>lintOptions</em> property to the Android settings in the
+build.gradle file. </p>
+
+ <pre>
+ android {
+ lintOptions {
+ // set to true to turn off analysis progress reporting by lint
+ quiet true
+ // if true, stop the gradle build if errors are found
+ abortOnError false
+ // if true, only report errors
+ ignoreWarnings true
+ </pre>
+
+<p>For more information, see
+<a href="{@docRoot}tools/debugging/improving-w-lint.html">Improving Your Code with Lint</a>.</p>
+
+
+<h3>Dynamic layout preview</h3>
+<p>Android Studio allows you to work with layouts in both a <em>Design View</em> </p>
+<p><img src="{@docRoot}images/tools/studio-helloworld-design.png" alt="" />
+</p>
+ <p class="img-caption"><strong>Figure 6.</strong> Hello World App with Design View</p>
+
+<p>and a <em>Text View</em>. </p>
+
+ <p><img src="{@docRoot}images/tools/studio-helloworld-text.png" alt="" />
+ <pclass="img-caption"><strong>Figure 7.</strong> Hello World App with Text View</p>
+
+<p>Easily select and preview layout changes for different device images, display
+densities, UI modes, locales, and Android versions (multi-API version rendering).
+ <p><img src="{@docRoot}images/tools/studio-api-version-rendering.png" /></p>
+ <p class="img-caption"><strong>Figure 11.</strong> API Version Rendering</p>
+
+
+<p>From the Design View, you can drag and drop elements from the Palette to the Preview or
+Component Tree. The Text View allows you to directly edit the XML settings, while previewing
+the device display. </p>
+
+
+<h3>Log messages</h3>
+<p>When you build and run your app with Android Studio, you can view adb and device log messages
+(logcat) in the DDMS pane by clicking <strong>Android</strong> at the bottom of the window.</p>
+
+<p>If you want to debug your app with the
+<ahref="{@docRoot}tools/help/monitor.html">Android Debug Monitor</a>, you can launch it by
+clicking <strong>Monitor</strong>
+<img src="{@docRoot}images/tools/monitor-studio.png" style="vertical-align:bottom;margin:0;height:19px"/>
+in the toolbar. The Debug Monitor is where you can find the complete set of
+<a href="{@docRoot}tools/debugging/ddms.html">DDMS</a> tools for profiling your app,
+controlling device behaviors, and more. It also includes the Hierarchy Viewer tools to help
+<a href="{@docRoot}tools/debugging/debugging-ui.html"> optimize your layouts</a>.</p>
+
+
+
+
+<h2 id="install-updates">Installation, Setup, and Update Management</h2>
+
+<h3>Android Studio installation and setup wizards</h3>
+<p>An updated installation and setup wizards walk you through a step-by-step installation
+and setup process as the wizard checks for system requirements, such as the Java Development
+Kit (JDK) and available RAM, and then prompts for optional installation options, such as the
+Intel &#174; HAXM accelerator.</p>
+
+<p>An updated setup wizard walks you through the setup processes as
+the wizard updates your system image and emulation requirements, such GPU, and then creates
+an optimized default Android Virtual Device (AVD) based on Android 5 (Lollipop) for speedie and
+reliable emulation. </p>
+<p><img src="{@docRoot}images/tools/studio-setup-wizard.png" /></p>
+<p class="img-caption"><strong>Figure 10.</strong> Setup Wizard</p>
+
+
+<h3>Expanded template and form factor support</h3>
+<p>Android Studio supports new templates for Google Services and expands the availabe device
+types. </p>
+
+ <h4> Android Wear and TV support</h4>
+ <p>For easy cross-platform development, the Project Wizard provides new templates for
+ creating your apps for Android Wear and TV. </p>
+ <p><img src="{@docRoot}images/tools/studio-tvwearsupport.png" />
+ <p class="img-caption"><strong>Figure 8.</strong> New Form Factors</p>
+ <p>During app creation, the Project Wizard also displays an API Level dialog to help you choose
+ the best <em>minSdkVersion</em> for your project.</p>
+
+
+ <h4> Google App Engine integration (Google Cloud Platform/Messaging)</h4>
+ <p>Quick cloud integration. Using Google App Engine to connect to the Google cloud
+ and create a cloud end-point is as easy as selecting <em>File > New Module > App Engine Java
+ Servlet Module</em> and specifying the module, package, and client names. </p>
+ <p><img src="{@docRoot}images/tools/studio-cloudmodule.png" /></p>
+ <p class="img-caption"><strong>Figure 9.</strong> Setup Wizard</p>
+
+
+
+<h3>Update channels</h3>
+<p>Android Studio provides four update channels to keep Android Studio up-to-date based on your
+code-level preference:
+<ul>
+ <li><strong>Canary channel</strong>: Canary builds provide bleeding edge releases, updated
+ about weekly. While these builds do get tested, they are still subject to bugs, as we want
+ people to see what's new as soon as possible. This is not recommended for production.</li>
+ <li><strong>Dev channel</strong>: Dev builds are hand-picked older canary builds that survived
+ the test of time. They are updated roughly bi-weekly or monthly.</li>
+ <li><strong>Beta channel</strong>: Beta builds are used for beta-quality releases before a
+ production release.</li>
+ <li><strong>Stable channel</strong>: Used for stable, production-read versions.</li>
+</ul>
+</p>
+
+<p>By default, Android Studio uses the <em>Stable</em> channel. Use
+<strong>File > Settings > Updates</strong> to change your channel setting. </p>
+
+
+
+<h2 id="other">Other Highlights/h2>
+
+<h3> Translation Editor</h3>
+<p>Multi-language support is enhanced with the Translation Editor plugin so you can easily add
+locales to the app's translation file. Color codes indicate whether a locale is complete or
+still missing string translations. Also, you can use the plugin to export your strings to the
+Google Play Developer Console for translation, then download and import your translations back
+into your project. </p>
+
+<p>To access the Translation Editor, open a <code>strings.xml</code> file and click the
+<strong>Open Editor</strong> link. </p>
+
+ <img src="{@docRoot}images/tools/studio-translationeditoropen.png" />
+ <p class="img-caption"><strong>Figure 4.</strong> Translation Editor</p>
+
+
+<h3> Editor support for the latest Android APIs</h3>
+<p>Android Studio supports the new
+<a href="{@docRoot}design/material/index.html">Material Design</a></li> themes, widgets, and
+graphics, such as shadow layers and API version rendering (showing the layout across different
+UI versions). Also, the new drawable XML tags and attributes, such as &lt;ripple&gt;
+and &lt;animated-selector&gt;, are supported.</p>
+
+
+<h3> Easy access to Android code samples on GitHub</h3>
+<p>Clicking <strong>Import Samples</strong> from the <strong>File</strong> menu or Welcome page
+provides seamless access to Google code samples on GitHub.</p>
+ <p><img src="{@docRoot}images/tools/studio-samples-githubaccess.png" /></p>
+ <p class="img-caption"><strong>Figure 12.</strong> Code Sample Access/p>
+
+
+
+
+
+
+
diff --git a/docs/html/tools/basics/studio-tips.jd b/docs/html/tools/basics/studio-tips.jd
new file mode 100644
index 0000000..253c944
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+page.title=Android Studio Tips and Tricks
+@jd:body
+
+<div id="qv-wrapper">
+<div id="qv">
+
+ <h2>In this document</h2>
+ <ol>
+ <li><a href="#whats-new">What's New</a></li>
+ <li><a href="#tips-tricks">Tips & Tricks</a></li>
+ <li><a href="#intellij">Working with IntelliJ</a></li>
+ <li><a href="#key-commands">Key Commands</a></li>
+ </ol>
+
+ <h2>See also</h2>
+ <ol>
+ <li><a href="{@docRoot}tools/sdk/index.html">Download Android Studio</a></li>
+ <li><a href="{@docRoot}tools/sdk/index.html">Download Standalone SDK tools.</a> </li>
+ <li><a href="http://wiki.jetbrains.net/intellij/Android">IntelliJ IDEA Android Tutorials</a></li>
+ <li><a href="http://confluence.jetbrains.com/display/IntelliJIDEA/FAQ+on+Migrating+to+IntelliJ+IDEA">IntelliJ FAQ on migrating to IntelliJ IDEA</a></li>
+ <li><a href="{@docRoot}tools/buildsystem/index.html">Build System</a></li>
+ </ol>
+
+</div>
+</div>
+
+<p>If you're unfamiliar with using Android Studio and the IntelliJ IDEA interface, this page
+provides some tips to help you get started with some of the most common tasks and productivity
+enhancements. </p>
+
+
+
+ <h2>Smart Rendering</h2>
+ <p>With smart rendering, Android Studio displays links for quick fixes to rendering errors.
+ For example, if you add a button to the layout without specifying the <em>width</em> and
+ <em>height</em> atttributes, Android Studio displays the rendering message <em>Automatically
+ add all missing attributs</em>. Clicking the message adds the missing attributes to the layout.</p>
+
+
+ <h2> Bitmap rendering in the debugger</h2>
+ <p>While debugging, you can now right-click on bitmap variables in your app and invoke
+ <em>View Bitmap</em>. This fetches the associated data from the debugged process and renders
+ the bitmap in the debugger. </p>
+ <p><img src="{@docRoot}images/tools/studio-bitmap-rendering.png" style="width:350px"/></p>
+ <p class="img-caption"><strong>Figure 13.</strong> Bitmap Rendering/p>
+
+
+ <h2>Output window message filtering</h2>
+ <p>When checking build results, you can filter messages by <em>message type</em> to quickly
+ locate messages of interest.</p>
+ <img src="{@docRoot}images/tools/studio-outputwindowmsgfiltering.png" style="width:200px"style="width:200px" />
+ <p class="img-caption"><strong>Figure 14.</strong> Filter Build Messages</p>
+
+
+
+ <h2>Hierarchical parent setting</h2>
+ <p>The activity parent can now be set in the Activity Wizard when creating a new
+ activity. Setting a <em>hierarchal parent</em> sets the {@code Up} button to automatically
+ appear in the app's Action bar when viewing a child activity, so the {@code Up}
+ button no longer needs to be manually specified in the <em>menu.xml</em> file.</p>
+
+
+ <h2>Creating layouts</h2>
+ <p>Android Studio offers an advanced layout editor that allows you to drag-and-drop widgets
+ into your layout and preview your layout while editing the XML.</p>
+
+ <p>While editing in the <strong>Text</strong> view, you can preview the layout on devices by
+ opening the <strong>Preview</strong> pane available on the right side of the window. Within the
+ Preview pane, you can modify the preview by changing various options at the top of the pane,
+ including the preview device, layout theme, platform version and more. To preview the layout on
+ multiple devices simultaneously, select <strong>Preview All Screen Sizes</strong> from the
+ device drop-down.</p>
+ <p><img src="{@docRoot}images/tools/studio-previewall.png" style="width:350px"/></p>
+ <p class="img-caption"><strong>Figure 15.</strong> Preview All Screens/p>
+
+ <p>You can switch to the graphical editor by clicking <strong>Design</strong> at the
+ bottom of the window. While editing in the Design view, you can show and hide the
+ widgets available to drag-and-drop by clicking <strong>Palette</strong> on the left side of the
+ window. Clicking <strong>Designer</strong> on the right side of the window reveals a panel
+ with a layout hierarchy and a list of properties for each view in the layout.</p>
+
+
+ <h2 id="intellij">Working with IntelliJ</h3>
+
+ <p>This section list just a few of the code editing
+ practices you should consider using when creating Android Studio apps. </p>
+
+ <p>For complete user documentation for the IntelliJ IDEA interface (upon which Android Studio
+ is based), refer to the
+ <a href="http://www.jetbrains.com/idea/documentation/index.jsp">IntelliJ IDEA documentation</a>.</p>
+
+
+
+ <h3><em>Alt + Enter</em> key binding</h3>
+ <p>For quick fixes to coding errors, the IntelliJ powered IDE implements the <em>Alt + Enter</em>
+ key binding to fix errors (missing imports, variable assignments, missing references, etc) when
+ possible, and if not, suggest the most probably solution. </p>
+
+
+ <h3><em>Ctrl + D</em> key binding</h3>
+ <p>The <em>Ctrl + D</em> key binding is great for quickly duplicating code lines or fragments.
+ Simply select the desired line or fragment and enter this key binding. </p>
+
+
+ <h3>Navigate menu</h3>
+ <p>In case you're not familiar with an API class, file or symbol, the <em>Navigate</em> menu lets
+ you jump directly to the class of a method or field name without having to search through
+ individual classes. </p>
+
+
+ <h3>Inspection scopes</h3>
+ <p>Scopes set the color of code segments for easy code identification and location. For example,
+ you can set a scope to identify all code related to a specific action bar. </p>
+
+
+
+ <h3>External annotations</h3>
+ <p>Specify annotations within the code or from an external annotation file. The Android Studio
+ IDE keeps track of the restrictions and validates compliance, for example setting the data type
+ of a string as not null.</p>
+
+
+
+ <h3>Injecting languages</h3>
+ <p>With language injection, the Android Studio IDE allows you to work with islands of different
+ languages embedded in the source code. This extends the syntax, error highlighting and coding
+ assistance to the embedded language. This can be especially useful for checking regular expression
+ values inline, and validating XML and SQL statments.</p>
+
+
+ <h3>Code folding</h3>
+ <p>This allows you to selectively hide and display sections of the code for readability. For
+ example, resource expressions or code for a nested class can be folded or hidden in to one line
+ to make the outer class structure easier to read. The inner clas can be later expanded for
+ updates. </p>
+
+
+ <h3>Image and color preview</h3>
+ <p>When referencing images and icons in your code, a preview of the image or icon appears
+ (in actual size at different densities) in the code margin to help you verify the image or icon
+ reference. Pressing {@code F1} with the preview image or icon selected displays resource asset
+ details, such as the <em>dp</em> settings. </p>
+
+
+ <h3>Quick F1 documentation</h3>
+ <p>You can now inspect theme attributes using <strong>View > Quick Documentation</strong>
+ (<strong>F1</strong>),
+ see the theme inheritance hierarchy, and resolve values for the various attributes.</p>
+
+ <p>If you invoke <strong> View > Quick Documentation</strong> (usually bound to F1) on the theme
+ attribute <em>?android:textAppearanceLarge</em>, you will see the theme inheritance hierarchy and
+ resolved values for the various attributes that are pulled in.</p>
+
+
+ <h3>New Allocation Tracker integration in the Android/DDMS window</h3>
+ <p>You can now inspect theme attributes using <strong> View > Quick Documentation
+ </strong> <code>F1</code>, see the theme inheritance hierarchy, and resolved values for the
+ various attributes.</p>
+ <img src="{@docRoot}images/tools/studio-allocationtracker.png" style="width:300px" />
+ <p class="img-caption"><strong>Figure 16</strong> Allocation Tracker</p>
+
+
+
+
+<h3 id="key-commands">Keyboard Commands</h3>
+
+<p>The following tables list keyboard shortcuts for common operations.</p>
+
+<p class="note"><strong>Note:</strong> This section lists Android Studio keyboard shortcuts
+for the default keymap. To change the default keymap on Windows and Linux, go to
+<strong>File</strong> &gt; <strong>Settings</strong> &gt; <strong>Keymap</strong>. To change
+the default keymap on Mac OS X, go to <strong>Android Studio</strong> &gt;
+<strong>Preferences</strong> &gt; <strong>Keymap</strong>.</p>
+
+<p class="note"><strong>Note:</strong> If you're using Mac OS X, update your keymap to use
+the Mac OS X 10.5+ version keymaps under <strong>Android Studio > Preferences > Keymap</strong>.</p>
+
+
+<p class="table-caption"><strong>Table 1.</strong> Programming key commands</p>
+<table>
+<tr><th>Action</th><th>Android Studio Key Command</th></tr>
+
+<tr>
+ <td>Command look-up (autocomplete command name)</td>
+ <td>CTRL + SHIFT + A</td>
+</tr>
+
+<tr>
+ <td>Project quick fix</td>
+ <td>ALT + ENTER</td>
+</tr>
+
+<tr>
+ <td>Reformat code</td>
+ <td>CTRL + ALT + L (Win)<br>
+ OPTION + CMD + L (Mac)</td>
+</tr>
+
+<tr>
+ <td>Show docs for selected API</td>
+ <td>CTRL + Q (Win)<br>
+ F1 (Mac)</td>
+</tr>
+
+<tr>
+ <td>Show parameters for selected method</td>
+ <td>CTRL + P</td>
+</tr>
+
+<tr>
+ <td>Generate method</td>
+ <td>ALT + Insert (Win)<br>
+ CMD + N (Mac)</td>
+</tr>
+
+<tr>
+ <td>Jump to source</td>
+ <td>F4 (Win)<br>
+ CMD + down-arrow (Mac)</td>
+</tr>
+
+<tr>
+ <td>Delete line</td>
+ <td>CTRL + Y (Win)<br>
+ CMD + Backspace (Mac)</td>
+</tr>
+
+<tr>
+ <td>Search by symbol name</td>
+ <td>CTRL + ALT + SHIFT + N (Win)<br>
+ OPTION + CMD + O (Mac)</td>
+</tr>
+
+</table>
+
+
+
+
+<p class="table-caption"><strong>Table 2.</strong> Project and editor key commands</p>
+<table>
+<tr><th>Action</th><th>Android Studio Key Command</th></tr>
+
+<tr>
+ <td>Build</td>
+ <td>CTRL + F9 (Win)<br>
+ CMD + F9 (Mac)</td>
+</tr>
+
+<tr>
+ <td>Build and run</td>
+ <td>SHIFT + F10 (Win)<br>
+ CTRL + R (Mac)</td>
+</tr>
+
+<tr>
+ <td>Toggle project visibility</td>
+ <td>ALT + 1 (Win)<br>
+ CMD + 1 (Mac)</td>
+</tr>
+
+<tr>
+ <td>Navigate open tabs</td>
+ <td>ALT + left-arrow; ALT + right-arrow (Win)<br>
+ CTRL + left-arrow; CTRL + right-arrow (Mac)</td>
+</tr>
+
+</table>
+
+<p>For a complete keymap reference guide, see the
+<a href="http://www.jetbrains.com/idea/documentation/index.jsp">IntelliJ IDEA</a> documentation.</p>
+
+
+</div>
+
+
+</div>
+
+
+