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Commit 170191d6 authored by Andrew Solovay's avatar Andrew Solovay
Browse files

docs: Added screen zoom testing info. 

I'd pulled the "testing screen zoom" material out of the draft doc,
since we were planning on putting it in a separate "testing" doc.
Since we don't have a testing doc, I'm restoring it here.

See first comment for doc stage location.

Change-Id: Ie1375cd4d61f92ab7a75b2dba2d31b340c7244d5
parent 6aed9862

docs/html/preview/behavior-changes.jd

+26 −2
Original line number Diff line number Diff line
@@ -288,10 +288,34 @@ page.image=images/cards/card-n-changes_2x.png 


<p>

  Most apps do not need to make any changes to support this feature, provided

  the apps follow Android best practices. You should verify that your app

  behaves properly under Screen Zoom.

  the apps follow Android best practices. Specific things to check for:

</p>



<ul>

  <li>Test your app on a device with screen width <code><a href=

  "{@docRoot}guide/topics/resources/providing-resources.html">sw320dp</a></code>

  and be sure it performs adequately.

  </li>



  <li>When the device configuration changes, update any density-dependent

  cached information, such as cached bitmaps or resources loaded from the

  network. Check for configuration changes when the app resumes from the paused

  state.

    <p class="note">

      <strong>Note:</strong> If you cache configuration-dependent data, it's a

      good idea to include relevant metadata such as the appropriate screen

      size or pixel density for that data. Saving this metadata allows you to

      decide whether you need to refresh the cached data after a configuration

      change.

    </p>

  </li>



  <li>Avoid specifying dimensions with px units, since they do not scale with

  screen density. Instead, specify dimensions with <a href=

  "{@docRoot}guide/practices/screens_support.html">density-independent

  pixel</a> (<code>dp</code>) units.

  </li>

</ul>



<h3 id="vision-settings">Vision Settings in Setup Wizard</h3>