frameworks_base/docs/html/develop/index.jd

fullpage=true
page.title=Develop Apps
page.viewport_width=970
meta.tags="develop, getstarted, sdk, appquality, landing"
section.landing=true
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carousel=1
tabbedList=1
excludeFromSuggestions=true
@jd:body


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        <img class="dac-hero-image" style="padding-top:32px"
          src="/images/develop/hero-layout-editor_2x.png">
      </div>
      <div class="col-1of2 col-pull-1of2" style="margin-bottom:40px">
        <h1 class="dac-hero-title">
            <a style="color:inherit" href="{@docRoot}studio/index.html">
            Android Studio 2.2 <nobr>is here!</nobr></a></h1>

<p class="dac-hero-description">The latest version of Android Studio includes a
rewritten <b>layout editor</b> with the new constraint layout,
helping you build rich UI with less work.</p>


<p class="dac-hero-description">With over a dozen new features, Android Studio
2.2 helps you code faster and smarter.</p>

<p style="margin-top:24px">
    <a class="dac-hero-cta" href="{@docRoot}studio/index.html">
      <span class="dac-sprite dac-auto-chevron"></span>
      Get Android Studio 2.2
    </a>
  &nbsp;&nbsp;&nbsp;&nbsp;<wbr>
    <a class="dac-hero-cta" href="{@docRoot}studio/releases/index.html">
    <span class="dac-sprite dac-auto-chevron"></span>
    See the release notes</a>
</p>

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<section class="dac-section dac-gray dac-small" id="latest"><div class="wrap">
  <h2 class="norule">Latest</h2>
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<section class="dac-section dac-light"><div class="wrap">
  <h1 class="dac-section-title">Tools for building apps</h1>
  <div class="dac-section-subtitle">
    Insights into Android's tools and libraries to speed your development.
  </div>
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       data-query="collection:develop/landing/tools"
       data-cardSizes="6x6"
       data-maxResults="24"
       data-initial-results="3"
       data-items-per-page="6"></div>
</div></section>

<section class="dac-section dac-gray"><div class="wrap">
  <h1 class="dac-section-title">Android development patterns</h1>
  <div class="dac-section-subtitle">
    Fundamental components and best practices that can help you build better apps.
  </div>
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       data-query="collection:develop/landing/devpatterns"
       data-cardSizes="6x6"
       data-maxResults="3"></div>
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      Playlist
    </a></li>
  </ul>
</div></section>

<section class="dac-section dac-section-light"><div class="wrap">
  <h1 class="dac-section-title">Android performance patterns</h1>
  <div class="dac-section-subtitle">
    Everything you need to know about improving your app’s performance.
  </div>
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       data-query="collection:develop/landing/performance"
       data-cardSizes="6x6"
       data-maxResults="3"></div>
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      Playlist
    </a></li>
  </ul>
</div></section>

<section class="dac-section dac-gray"><div class="wrap">
  <h1 class="dac-section-title">Ubiquitous computing on Android</h1>
  <div class="dac-section-subtitle">
    A great experience for your users across devices.
  </div>
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       data-query="collection:develop/landing/ubicomp"
       data-cardSizes="6x6"
       data-maxResults="3"></div>
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    <li class="dac-section-link"><a href="/wear/index.html">
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      Wear
    </a></li>
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      TV
    </a></li>
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      Auto
    </a></li>
  </ul>
</div></section>

<section class="dac-section dac-light" id="courses"><div class="wrap">
  <h1 class="dac-section-title">Online Courses</h1>
  <div class="dac-section-subtitle">Free online courses from Android
    experts that bring you step-by-step to building your own apps.</div>
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       data-query="collection:develop/landing/courses"
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