Merge "Docs: Adds SurfaceView to API Overview page for Android-N DP4." into nyc-dev

        <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>

  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>