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docs: Updating N release notes for DP3

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This should be the final version for the released-during-IO-keynote
release notes, though we can certainly do a follow-on update if
more info comes in.

See first comment for doc stage location.

bug: 28591801
Change-Id: I3ab208499e4e567c34ef0bdf27952e874d2da112
This commit is contained in:
Andrew Solovay
2016-05-16 15:11:37 -07:00
parent 473ef93497
commit 58d5504241
1 changed files with 445 additions and 31 deletions
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476
docs/html/preview/support.jd
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@@ -5,6 +5,34 @@ page.image=images/cards/card-n-support_2x.png
@jd:body
<div id="qv-wrapper">
<div id="qv">
<h2>In this document</h2>
<ul>
<li><a href="#dp3">Developer Preview 3</a>
<ul>
<li><a href="#general">General advisories</a></li>
<li><a href="#new">New in DP3</a></li>
<li><a href="#ki">Known issues</a></li>
</ul>
</li>
<li><a href="#dp2">Developer Preview 2</a></li>
<li><a href="#dp1">Developer Preview 1</a></li>
</ul>
<!--
<h2>See Also</h2>
<ol>
<li></li>
</ol>
-->
</div>
</div>
<p>
Two primary support channels are available to you when developing and testing
with the Android N Developer Preview: Please file bugs at <a href=
@@ -23,68 +51,452 @@ page.image=images/cards/card-n-support_2x.png
<div class="cols">
<div class="col-6of12">
<p>
<em>Date: April 2016<br>
Builds: TODO<br>
<em>Date: May 2016<br>
Builds: NPD35K<br>
Emulator support: x86 &amp; ARM (32/64-bit)<br>
Google Play services: TODO</em>
Google Play services: 8.4</em>
</p>
</div>
</div>
</div>
<h3 id="general">General advisories</h3>
<p>
This Developer Preview release is for <strong>app developers and other early
adopters</strong> and is available for daily use, development, or
compatibility testing. Please be aware of these general notes about the
release:
</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.
</li>
<li>Some apps <strong>may not function as expected</strong> on the new
platform version. This includes Google’s apps as well as other apps. You can
let developers know about app compatibility issues using the <a href=
"{@docRoot}preview/bugs">N Developer Preview issue tracker</a>.
</li>
<li>Developer Preview 3 is <strong>Compatibility Test Suite (CTS)
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 3 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).
</li>
</ul>
<h3 id="new">New in DP3</h3>
<h4 id="">VR Mode for Android</h4>
<h4 id="api-changes">API changes</h4>
<p>
Android N adds platform support and optimizations for a new VR Mode to let
developers build high quality mobile VR experiences for users. There are a
number of performance enhancements, including access to an exclusive CPU core
for VR apps. Within your apps, you can take advantage of intelligent
head-tracking, and stereo notifications that work for VR. Most importantly,
Android N provides for very low latency graphics.
</p>
<p>
For more information, see the <a href=
"https://developers.google.com/vr/android/">Google VR SDK for Android</a>.
</p>
<h4 id="">Sustained performance mode</h4>
<p>
Android N includes optional support for <a href=
"{@docRoot}preview/api-overview.html#sustained_performance_api">sustained
performance mode</a>, enabling OEMs to provide hints on device performance
capabilities for long running applications. App developers can then use these
hints to tune applications for a predictable, consistent level of device
performance over long periods of time. App developers can try out this new
API in the developer preview on Nexus 6P devices only.
</p>
<h4>Multiprocess WebView</h4>
<p>
Starting with version 51 in Android N, WebView will run web content in a
separate sandboxed process when the developer option "Multiprocess WebView"
is enabled. The WebView team is looking for feedback on compatibility and
runtime performance in N before enabling multiprocess WebView in a future
version of Android. In this version, regressions in startup time, total
memory usage and software rendering performance are expected.
</p>
<p>
If you find unexpected issues in multiprocess mode we’d like to hear about
them. Please get in touch with the WebView team by <a href=
"https://bugs.chromium.org/p/chromium/issues/entry?template=Webview%20Bugs">
filing a bug</a>.
</p>
<h4 id="">Keyboard Shortcuts helper</h4>
<p>
Android N lets users press <code>Meta+/</code> to trigger a <strong>Keyboard
Shortcuts</strong> screen that displays all shortcuts available both from the
system and from the app in focus. Developers can add their own shortcuts or
trigger the Shortcuts screen from their apps. See <a href=
"{@docRoot}preview/api-overview.html#keyboard_shortcuts_helper">Keyboard
Shortcuts helper</a> for details.
</p>
<h4 id="">FrameMetrics API</h4>
<p>
DP3 introduces a new <a href=
"{@docRoot}preview/api-overview.html#framemetrics_api">FrameMetrics API</a>
that allows an app to monitor its UI rendering performance by exposing a
streaming pubsub API to transfer frame timing info for the application’s
current window. <code>FrameMetricsListener</code> can be used to measure
interaction-level UI performance in production with higher granularity and
without the need for a USB connection.
</p>
<h4 id="api-changes">Feature and API changes</h4>
<dl>
<dt><a href="{@docRoot}preview/api-overview.html#number-blocking"
>Number-blocking</a></dt>
<dd>If an unauthorized user attempts to block or unblock a number, the operation
now fails with {@link java.lang.SecurityException}. (Previously, the
operation threw {@link java.lang.UnsupportedOperationException}.)</dd>
<dt>
Launcher Shortcuts and the Launcher Shortcuts API
</dt>
<dt><a href="{@docRoot}preview/api-overview.html#tile_api">Quick
Settings Tile API</a></dt>
<dd>The system now uses the activity's metadata to decide on the tile mode.
<dd>
We’ve decided to defer this feature to a future release of Android. We plan
to remove the Launcher Shortcuts APIs (ShortcutManager and others) from the
public Android N API starting in the next developer preview.
</dd>
<dt>
WebView Javascript run before page load
</dt>
<dd>
Starting with apps targeting Android N, the Javascript context is reset
when a new page is loaded. Currently, the context is carried over for the
first page loaded in a new {@link android.webkit.WebView} instance.
Developers looking to inject Javascript into the {@link
android.webkit.WebView} should execute the script after the page has
started to load.
</dd>
<dt>
WebView Geolocation on insecure origins
</dt>
<dd>
Starting with apps targeting Android N, the geolocation API will only be
allowed on secure origins (over HTTPS.) This policy is designed to protect
users' private information when they're using an insecure connection.
</dd>
<dt>
Data Saver
</dt>
<dd>
Starting in Developer Preview 3, apps can use use an intent to display a
system dialog that lets the user directly add the app to the Data Saver
exemption whitelist. See the <a href=
"{@docRoot}preview/api-overview.html#data_saver">Data Saver
documentation</a> for details.
</dd>
<dt>
<a href=
"{@docRoot}preview/api-overview.html#number-blocking">Number-blocking</a>
</dt>
<dd>
If an unauthorized user attempts to block or unblock a number, the
operation now fails with {@link java.lang.SecurityException}. (Previously,
the operation threw {@link java.lang.UnsupportedOperationException}.)
</dd>
<dt>
<a href="{@docRoot}preview/api-overview.html#tile_api">Quick Settings Tile
API</a>
</dt>
<dd>
The system now uses the activity's metadata to decide on the tile mode.
(Previously, tile mode was determined by the return value of
<code>TileService.onTileAdded()</code>.) For more information, see
<code>TileService.META_DATA_ACTIVE_TILE</code> in the downloadable
<a href="{@docRoot}preview/setup-sdk.html#docs-dl">API Reference</a>.
<code>TileService.META_DATA_ACTIVE_TILE</code> in the downloadable <a href=
"{@docRoot}preview/setup-sdk.html#docs-dl">API Reference</a>.
</dd>
</dl>
<h4 id="dp2-fixes">Fixes for issues reported by developers</h4>
<h4 id="dp3-fixes">Fixes for issues reported by developers</h4>
<p>
A number of issues reported by developers have been fixed, including:
</p>
<ul>
<li>TODO</li>
<li>Bluetooth Audio playback interrupted after 1 song (bug <a href=
"https://code.google.com/p/android/issues/detail?id=206889">206889</a>)
</li>
<li>Pixel C Consistently Crashes (bug <a href=
"https://code.google.com/p/android/issues/detail?id=206962">206962</a>)
</li>
<li>Clock and Toast notification issues (bug <a href=
"https://code.google.com/p/android/issues/detail?id=203094">203094</a>)
</li>
<li>Pixel C reboots when connected to MacBook Pro via USB C Cable (bug
<a href=
"https://code.google.com/p/android/issues/detail?id=205432">205432</a>)
</li>
<li>Calandar offset by one day (bug <a href=
"https://code.google.com/p/android/issues/detail?id=203002">203002</a>)
</li>
<li>TelephonyManager.getAllCellInfo returning invalid data (bug <a href=
"https://code.google.com/p/android/issues/detail?id=203022">203022</a>)
</li>
<li>Nexus 6p, Bluetooth keeps disconnecting (bug <a href=
"https://code.google.com/p/android/issues/detail?id=208062">208062</a>)
</li>
</ul>
<h3 id="general">General advisories</h3>
<p>
This Developer Preview release is for <strong>app developers only</strong>
and is designed for use in compatibility testing and early development only.
Please be aware of these general notes about the release:
</p>
<ul>
<li>TODO</li>
</ul>
<p>For the full list of fixed issues, see <a href="https://goo.gl/6uCKtf">the
issue tracker</a>.</p>
<h3 id="ki">Known Issues</h3>
<p>TODO</p>
<h4>Accessibility</h4>
<ul>
<li>Unable to listen to TTS output when pitch is set near maximum level.
</li>
<li>Accessibility features and settings may be disrupted with the user adds a
Work profile, including magnification gesture and setting. Accessibility
state is restored when the user next touches the associated settings.
</li>
</ul>
<h4>Camera</h4>
<ul>
<li>The Camera app has exhibited instability; it may crash in various
circumstances, such as when launched in multi-window mode.
</li>
<li>Pressing the shutter continuously in panorama mode may cause the Camera
app to crash.
</li>
</ul>
<h4>Audio</h4>
<ul>
<li>A platform audio player issue prevents some apps from functioning
normally. For example, Skype and other apps are affected by this issue.
</li>
</ul>
<h4>Connectivity</h4>
<ul>
<li>When a Bluetooth Low Energy (BLE) peripheral role device advertises a
service and a BLE central role device connects, the peripheral role device
disconnects very quickly.
</li>
<li>Wi-Fi connection may be dropped when the screen is off.
</li>
<li>RFCOMM connections are unstable and may result in data corruption and
dangling connections.
</li>
<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>
</ul>
<h4>
Launcher
</h4>
<ul>
<li>The default launcher’s All Apps tray may become unresponsive after
cycling screen off / screen on. Returning to the homescreen and relaunching
the All Apps tray may resolve this issue.
</li>
</ul>
<h4>
Keyboard
</h4>
<ul>
<li>When updating a device running Android 6.0 or earlier to the N Developer
Preview, Google Keyboard does not preserve preferences data such as recent
emoji and sound settings.
</li>
<li>Google Indic Managed Keyboard may be unstable.
</li>
<li>When entering text in a password field, the user can select Russian as
the input language but the keyboard remains in English. This prevents the
user from entering Russian-language passwords.
</li>
</ul>
<h4>
Locale and languages
</h4>
<ul>
<li>When using a right-to-left (RTL) locale, the system may unexpectedly
switch to left-to-right (LTR) presentation after restarting the device.
</li>
</ul>
<h4>Media</h4>
<ul>
<li>Media playback be be unreliable on Nexus 9 and Nexus Player, including
issues playing HD video.
</li>
</ul>
<h4>
Multi-window mode
</h4>
<ul>
<li>Device may freeze when changing orientation in multi-window mode.
</li>
<li>Several apps currently have issues with multi-window mode:
<ul>
<li>The system UI may crash when docking Settings &gt; Display &gt;
Screen brightness to multi-window.
</li>
<li>The Camera app may crash when launched in multi-window mode.
</li>
<li>YouTube may crash when launched into multi-window mode. To fix the
issue, you can clear the YouTube app’s data at Storage &gt; Apps &gt;
YouTube.
</li>
</ul>
</li>
</ul>
<h4>
Google Play services
</h4>
<ul>
<li>Apps using Google Cast through Google Play services may be unstable when
the user selects a system locale that uses letters and numbers outside of the
ASCII range.
</li>
</ul>
<h4>
Work and enterprise
</h4>
<ul>
<li>The Device Policy app may crash when the user unlocks the device with the
"device policy status" screen pinned.
</li>
<li>After setting up a work profile with file-based encryption enabled and
then turning off Work, users must unlock primary profile screen lock to once
again access Work apps.
</li>
<li>Cannot open work apps after reboot in file-based-encryption with work
mode off.
</li>
<li>Device reboots when removing the security pattern lock and opening work
app/personal app in the multi-window.
</li>
<li>Setting DISALLOW_VPN_CONFIG is causing the consent dialog to appear in
always-on-vpn set by Device Policy Client.
</li>
<li>Traffic is not locked down until VPN is connected in always-on-vpn mode.
</li>
</ul>
<h4>
External storage
</h4>
<ul>
<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>
<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 id="">Notifications</h4>
<ul>
<li>MessagingStyle does not show notifications with "null" (self) sender.
</li>
</ul>
<!-- TODO, if any
<h4>Device-specific issues</h4>
<p>TODO</p>
<dl>
<dt>
<strong>Device Name</strong>
@@ -99,6 +511,8 @@ page.image=images/cards/card-n-support_2x.png
</dd>
</dl>
-->
<!-- DP2 Release Notes Archive -->
<h2 id="dp2">Developer Preview 2</h2>