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am e4c2a376: Merge change I2703edac into eclair

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Merge commit 'e4c2a37624612c9708d0767f8643a10502e6887a' into eclair-plus-aosp

* commit 'e4c2a37624612c9708d0767f8643a10502e6887a':
  docs: add new device features for the uses-feature
This commit is contained in:
Scott Main
2009-12-19 12:33:00 -08:00
committed by Android Git Automerger
parent 9a6c8168f7 e4c2a37624
commit 5508987bfc
1 changed files with 66 additions and 22 deletions
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88
docs/html/guide/topics/manifest/uses-feature-element.jd
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@@ -50,12 +50,12 @@ camera, then you should include the following in your {@code AndroidManifest.xml
<uses-feature android:name="android.hardware.camera" />
</pre>
<p>If you declare {@code android.hardware.camera}, then your application is considered
<p>If you declare {@code android.hardware.camera} this way, then your application is considered
compatible with all devices that include a camera. If your application also uses auto-focus
features, then you also need to include a
{@code &lt;uses-feature>} element that declares the {@code android.hardware.camera.autofocus}
feature. Also note that you must still request the {@link android.Manifest.permission#CAMERA
CAMERA} permission. Requesting permission grants your application access to the
CAMERA} permission. Requesting the permission grants your application access to the
appropriate hardware and software, while declaring the features used by
your application ensures proper device compatibility.</p>
@@ -81,8 +81,8 @@ instance of this element.</p>
<dt><a name="glEsVersion"></a>{@code android:glEsVersion}</dt>
<dd>The GLES version needed by the application.
The higher 16 bits represent the major number and the lower 16 bits
represent the minor number. For example, for GL 1.2 referring to
0x00000102, the actual value should be set as 0x00010002.
represent the minor number. For example, for GL 1.2,
the value should be set as {@code 0x00010002}.
</dd>
<dt><a name="name"></a>{@code android:name}</dt>
@@ -96,7 +96,7 @@ instance of this element.</p>
<th>Description</th>
</tr><tr>
<td rowspan="2">Camera</td>
<td>"{@code android.hardware.camera}"</td>
<td>{@code android.hardware.camera}</td>
<td>The application requires a camera.</td>
</tr><tr>
<td colspan="2">
@@ -106,37 +106,81 @@ instance of this element.</p>
to use all camera features (auto-focus and flash). Thus, the application will not
be compatible with devices that do not support all camera features. Please use
{@code &lt;uses-feature>} to declare only the camera features that your
application does need. For instance, if you requests the
{@link android.Manifest.permission#CAMERA} permission, but does not need auto-focus or
flash, then declare only the {@code android.hardware.camera} feature&mdash;the camera
features that you do not request will no longer be assumed as required.
application does need. For instance, if you request the
{@link android.Manifest.permission#CAMERA} permission, but you do not need auto-focus or
flash, then declare only the {@code android.hardware.camera} feature&mdash;the other
camera features that you do not request will no longer be assumed as required.
</td>
</tr><tr>
<td>Camera auto-focus</td>
<td>"{@code android.hardware.camera.autofocus}"</td>
<td>{@code android.hardware.camera.autofocus}</td>
<td>The application requires a camera with auto-focus capability.
As a prerequisite, "{@code android.hardware.camera}" must also be declared
As a prerequisite, {@code android.hardware.camera} must also be declared
with a separate {@code &lt;uses-feature>} element.
</td>
</tr><tr>
<td>Camera flash</td>
<td>{@code android.hardware.camera.flash}</td>
<td>The application requires a camera with a flash.
As a prerequisite, both {@code android.hardware.camera} and {@code
android.hardware.camera.autofocus} must also be declared
with separate {@code &lt;uses-feature>} elements.
</td>
</tr><tr>
<td>Light sensor</td>
<td>{@code android.hardware.sensor.light}</td>
<td>The application requires a device with a light sensor.
</td>
</tr><tr>
<td>Proximity sensor</td>
<td>{@code android.hardware.sensor.proximity}</td>
<td>The application requires a device with a proximity sensor.
</td>
</tr><tr>
<td>Multitouch screen</td>
<td>{@code android.hardware.touchscreen.multitouch}</td>
<td>The application requires a device that supports multitouch.
</td>
</tr><tr>
<td>Telephony</td>
<td>{@code android.hardware.telephony}</td>
<td>The application requires a device that includes a telephony radio with data
communication services.
</td>
</tr><tr>
<td>CDMA telephony</td>
<td>{@code android.hardware.telephony.cdma}</td>
<td>The application requires a device that includes a CDMA telephony radio. As a
prerequisite, {@code android.hardware.telephony} must also be declared
with a separate {@code &lt;uses-feature>} element.
</td>
</tr><tr>
<td>GSM telephony</td>
<td>{@code android.hardware.telephony.gsm}</td>
<td>The application requires a device that includes a GSM telephony radio. As a
prerequisite, {@code android.hardware.telephony} must also be declared
with a separate {@code &lt;uses-feature>} element.
</td>
</tr>
</table>
</dd>
<dt><a name="required"></a>{@code android:required}</dt> <!-- added in api level 5 -->
<dd>Indicates whether the feature is required by the application. This is
"true" by default. <strong>You should not use this attribute for most cases.</strong>
{@code true} by default. <strong>You should not use this attribute for most cases.</strong>
</p>
<p>The only situation in which you should set this attribute "false" is when your application
requests the {@link android.Manifest.permission#CAMERA} permission, but will degrade gracefully
and perform without failure if the device does not have a camera. In this situation, you must
declare the "{@code android.hardware.camera}" feature and set the {@code required} attribute
"false". This is necessary because the {@link android.Manifest.permission#CAMERA} permission
will automatically turn on the requirement for all camera features. So if your application uses
this permission but is still compatible with devices without a camera, then you must set this
attribute "false" for "{@code android.hardware.camera}" or else it will not install on devices
without a camera. Note that, while the permission will enable the requirement for <em>all</em>
camera features, you only need to off the requirement for the basic camera feature.</p>
<p>The only situation in which you should set this attribute {@code false} is when your
application requests the {@link android.Manifest.permission#CAMERA} permission, but will degrade
gracefully and perform without failure if the device does not have a camera. In this situation,
you must declare the {@code android.hardware.camera} feature and set the {@code required}
attribute {@code false}. This is necessary because the {@link
android.Manifest.permission#CAMERA} permission will automatically turn on the requirement for
all camera features. So if your application uses this permission but is still compatible with
devices without a camera, then you must set the {@code required} attribute {@code false} for
{@code android.hardware.camera} or else it will not install on devices without a camera. Note
that, while the permission will enable the requirement for <em>all</em> camera features, you
only need to off the requirement for the basic camera feature.</p>
</dd>