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Docs: Adds SurfaceView to API Overview page for Android-N DP4.

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Change-Id: I29854c82ef788b00c1ebc305bc5faf463c2d8dc8
This commit is contained in:
David Friedman
2016-06-14 15:37:16 -07:00
parent 8e3a16ad91
commit 521da6ac5c
1 changed files with 27 additions and 0 deletions
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docs/html/preview/api-overview.jd
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@@ -18,6 +18,7 @@ page.image=images/cards/card-n-apis_2x.png
<li><a href="#quick_path_to_app_install">Quick Path to App Install</a></li>
<li><a href="#doze_on_the_go">Doze on the Go</a></li>
<li><a href="#background_optimizations">Background Optimizations</a></li>
<li><a href="#surfaceview">SurfaceView</a></li>
<li><a href="#data_saver">Data Saver</a></li>
<li><a href="#vulkan">Vulkan API</a></li>
<li><a href="#tile_api">Quick Settings Tile API</a></li>
@@ -286,6 +287,32 @@ your app is receiving these, take advantage of the N Developer Preview to
Optimizations</a> documentation for details.
</p>
<h2 id="surfaceview">SurfaceView</h2>
<p>
Android N brings synchronous movement to the {@link android.view.SurfaceView}
class, which provides better battery performance
than {@link android.view.TextureView} in certain cases: When rendering video or
3D content, apps with scrolling and animated video position use less power with
{@link android.view.SurfaceView} than with {@link android.view.TextureView}.
</p>
The {@link android.view.SurfaceView} class enables more battery-efficient compositing on
screen, because it is composited in dedicated hardware, separately from app
window content. As a result, it makes fewer intermediate
copies than {@link android.view.TextureView}.
</p>
<p>
A {@link android.view.SurfaceView} object's content position is now updated synchronously
with the containing app content. One result of this change is that simple
translations or scales of a video playing in a {@link android.view.SurfaceView}
no longer produce black bars alongside the view as it moves.
</p>
<p>
Starting with Android N, we strongly recommend that you save power by using
{@link android.view.SurfaceView} instead of {@link android.view.TextureView}.
</p>
<h2 id="data_saver">Data Saver</h2>