Merge \"docs: Updating N preview release notes for DP4\" into nyc-dev

    <div class="col-6of12">

      <p>

        <em>Date: June 2016<br>

        Build: TODO<br>

        Build: NPD56N<br>

        Emulator support: x86 &amp; ARM (32/64-bit)<br>

        Google Play services: 8.4</em>

      </p>

<ul>

  <li>This release may have various <strong>stability issues</strong> on

  supported devices. Users may encounter system instability, such as kernel

  panics and crashes.

  supported devices.

  </li>

  <li>Some apps <strong>may not function as expected</strong> on the new

  </li>

  <li>Developer Preview 4 is <strong>Compatibility Test Suite (CTS)

  approved</strong> on these devices: <strong>TODO: Need list.</strong>. Apps

  that depend on CTS approved builds should work normally on these devices

  (Android Pay for example).

  approved</strong> on these devices: Nexus 5X, Nexus 6, Nexus 6P, and

  Pixel C. Apps that depend on CTS approved builds should work normally

  on these devices (Android Pay for example).

  </li>

  <li>Developer Preview 4 is <strong>available on all supported

  devices:</strong> Nexus 5X, Nexus 6, Nexus 6P, Nexus 9, Nexus Player, Pixel

  C, General Mobile 4G (Android One), as well as Sony Xperia Z3 (D6603 and

  D6653 models). <strong>TODO: Confirm this list.</strong>

  devices:</strong> Nexus 5X, Nexus 6, Nexus 6P, Nexus 9, Nexus Player,

  Pixel C, General Mobile 4G (Android One), as well as Sony Xperia Z3

  (D6603 and D6653 models).

  </li>

</ul>

<h3 id="new">New in DP4</h3>

<!-- TODO -->

<h4 id="">New feature</h4>

<h4>Android N final APIs</h4>

<p>

  Developer Preview 4 includes the <strong>final APIs</strong> for the upcoming

  Android N platform. The new API level is 24.

</p>

<p>Description of new feature.</p>

<h4>Play publishing</h4>

<p>

  You can now publish apps that use <strong>API level 24</strong> to Google

  Play, in alpha, beta, and production release channels.

</p>

<h4>Android Studio and tools updates</h4>

<p>

  Along with Developer Preview 4 we’re providing the <strong>final API 24

  SDK</strong> to be used with Android Studio 2.1.2 and higher. In addition,

  we’re releasing updated Developer Preview 4 system images for the emulator to

  help test your apps.

</p>

<p>

  As new updates roll out for Android Studio, you should see minor improvements in

  the new project wizards and AVD manager as we add enhanced support for API 24.

  These are primarily cosmetic changes and should not stop you from getting

  your app ready for an update in the Play store.

</p>

<h4 id="api-changes">Feature and API changes</h4>

<dl>

  <dt>

    <a href="{@docRoot}preview/features/multi-window.html">Multi-Window</a>

  </dt>

<ul>

  <li>In previous versions of Android, an app activates with all of its locale

  resources loaded before locale negotiation begins. Starting in Android N DP4,

  the system negotiates resource locales individually for each resource object

  before the app activates.

  </li>

  <dd>

    The <code>android:minimalHeight</code> and <code>android:minimalWidth</code>

  <li>As announced at Developer Preview 3, we’ve deferred the Launcher

  Shortcuts feature to a later release of Android. In Developer Preview 4,

  we’ve removed the Launcher Shortcuts APIs.

  </li>

  <li>We’ve changed the BLE Scanning behavior starting in DP4. We’ll prevent

  applications from starting and stopping scans more than 5 times in 30

  seconds. For long running scans, we’ll convert them into opportunistic scans.

  </li>

  <li>The <a href=

  "{@docRoot}preview/features/multi-window.html">Multi-Window</a>

  <code>android:minimalHeight</code> and <code>android:minimalWidth</code>

  attributes have been renamed to <code>android:minHeight</code> and

  <code>android:minWidth</code>.

  </dd>

</dl>

  </li>

</ul>

<h4 id="dp4-fixes">Fixes for issues reported by developers</h4>

<h3 id="ki">Known Issues</h3>

<p>

  A number of issues reported by developers have been fixed, including:

</p>

<h4>Stability</h4>

<ul>

  <li><strong>TODO</strong>

  <li>Users may encounter system instability (such as kernel panics and

  crashes).

  </li>

</ul>

<p>For the full list of fixed issues, see <a href="https://goo.gl/6uCKtf">the

issue tracker</a>.</p>

<h4>Launcher</h4>

<h3 id="ki">Known Issues</h3>

<ul>

  <li>The default launcher’s <strong>All Apps</strong> tray may become

  unresponsive after cycling the screen off and on. Returning to the

  homescreen and relaunching the <strong>All Apps</strong> tray may resolve

  this issue.

  </li>

</ul>

<!--

<h4>Setup Wizard</h4>

<ul>

  <li>Crash on selecting "Not now" in "Set up email" screen.

  </li>

</ul>

<h4>Media</h4>

<ul>

  <li>Media playback may be unreliable on Nexus 9 and Nexus Player, including

  issues playing HD video.

  </li>

  <li>Occasional freeze when running the YouTube app with other apps in

  multi-window mode on Pixel C devices. In some cases hard reboot is required.

  </li>

  <li>Apps may have issues playing some Widevine DRM-protected content on Nexus

  9 devices.

  </li>

  <li>Issues handling VP8 video on Nexus 9 devices.

  </li>

</ul>

<h4>Product area</h4>

<h4>External storage</h4>

<ul>

  <li>Description of bug</li>

  <li>Apps may become unstable when the user moves them from internal storage

  to adoptable external storage (this can include SD card or devices attached

  over USB).

  </li>

</ul>

-->

<h4>Screen zoom and multiple APKs in Google Play</h4>

<ul>

  <li>On devices running Android N, Google Play services 9.0.83 incorrectly

  reports the current screen density rather than the stable screen density.

  When screen zoom is enabled on these devices, this can cause Google Play to

  select a version of a multi-APK app that’s designed for smaller screens. This

  issue is fixed in the next version of Google Play services and will be

  included in a later Developer Preview release.

  </li>

</ul>

<h4>Vulkan support and multiple APKs in Google Play</h4>

<ul>

  <li>On devices running Android N, Google Play services 9.0.83 currently

  reports Vulkan support but not Vulkan version. This can cause Google Play to

  select a version of a multi-APK app that’s designed for lower Vulkan support

  on devices with higher version support. Currently, the Google Play Store does

  not accept uploads of apps which use Vulkan version targeting. This support

  will be added to the Google Play Store in the future and fixed in the next

  version of Google Play services (to be included in a later Developer Preview

  release). Any N devices using the version of Google Play services 9.0.83 will

  continue to receive versions of apps targeting basic Vulkan support.

  </li>

</ul>

<h4>Accessibility</h4>

<ul>

  <li>Switch access doesn't allow user to navigate web pages in Chrome.

  </li>

  <li>Accessibility issues for talkback users with notification dismissal, and

  wifi selection screen.

  </li>

</ul>

<h4>Android for Work</h4>

<ul>

  <li>Currently, CA certificates provisioned through {@link

  android.app.admin.DevicePolicyManager} are not

  available to profiles other than the primary user/profile due to a preload

  issue. For example, this could prevent a user from connecting to a trusted

  server when in a Work profile. This issue will be resolved in the next

  Developer Preview.

  </li>

</ul>

<!-- TBA, if any

<h4>Device-specific issues</h4>

-->

<h4 id="dp4-fixes">Fixes for issues reported by developers</h4>

<p>

  A number of issues reported by developers have been fixed, including:

</p>

<ul>

  <li>The active network state ({@link android.net.NetworkInfo#getState

  NetworkInfo.getState()} and {@link android.net.NetworkInfo#getDetailedState

  NetworkInfo.getDetailedState()}) might return incorrect values during some

  restricted background scenarios

  </li>

  <li>Data Saver restricts the foreground MMS mobile network request

    (<a href="https://code.google.com/p/android/issues/detail?id=208478">bug

    208478</a>)

  </li>

  <li>Quick settings tiles and notifications sometimes unresponsive

  </li>

  <li>Unable to dismiss Clock notifications

  </li>

  <li>Duplication of bluetooth icon and other status icons

  </li>

  <li>Additional bluetooth connectivity fixes

  </li>

</ul>

<p>For the full list of fixed issues, see <a href="https://goo.gl/6uCKtf">the

issue tracker</a>.</p>

<h3 id="dp3-new">New in DP3</h3>

<h4 id="">VR Mode for Android</h4>

<h4>VR Mode for Android</h4>

<p>

  Android N adds platform support and optimizations for a new VR Mode to let

  "https://developers.google.com/vr/android/">Google VR SDK for Android</a>.

</p>

<h4 id="">Sustained performance mode</h4>

<h4>Sustained performance mode</h4>

<p>

  Android N includes optional support for <a href=

  filing a bug</a>.

</p>

<h4 id="">Keyboard Shortcuts helper</h4>

<h4>Keyboard Shortcuts helper</h4>

<p>

  Android N lets users press <code>Meta+/</code> to trigger a <strong>Keyboard

  Shortcuts helper</a> for details.

</p>

<h4 id="">FrameMetrics API</h4>

<h4>FrameMetrics API</h4>

<p>

  DP3 introduces a new <a href=

  </li>

</ul>

<h4 id="">Notifications</h4>

<h4>Notifications</h4>

<ul>

  <li>MessagingStyle does not show notifications with "null" (self) sender.

  </li>

</ul>

<h4 id="">Developer Tools</h4>

<h4>Developer Tools</h4>

<ul>

  <li>