<uses-feature>

<uses-feature android:glEsVersion="integer"
              android:name="string" />

For example, an application might specify that it requires a camera with auto-focus capabilities. If a device does not provide a camera with auto-focus, then it will not allow installation of the application.

In order to maintain strict device compatibility, it's very important that you use this element to declare all features that your application uses. Failure to declare a feature may result your application being installed on a device that does not support the feature and your application failing.

For some features, there may exist a specfic attribute that allows you to define a version of the feature, such as the version of Open GL used (declared with glEsVersion). Other features that either do or do not exist for a device, such as camera auto-focus, are declared using the name attribute.

Any software or hardware features that may vary among Android-powered devices will be listed on this page among the attributes below. If you see any features here that you use in your application, you should include a <uses-feature> element for each one. For example, if your application uses the device camera, then you should include the following in your AndroidManifest.xml:

<uses-feature android:name="android.hardware.camera" />

If you declare "android.hardware.camera", then your application is considered compatible with all devices that include a camera, regardless of whether auto-focus is available or not. If you also use the auto-focus features (available through the Camera API), then you need to include an additional <uses-feature> element that declares the "android.hardware.camera.autofocus" feature. Also note that you must still request the CAMERA permission. Requesting permission grants your application access to the appropriate hardware and software, while declaring the features used by your application ensures proper device compatibility.

Although the <uses-feature> element is only activated for devices running API Level 4 or higher, it is safe to include this for applications that declare a minSdkVersion of "3" or lower. Devices running older versions of the platform will simply ignore this element, but newer devices will recognize it and enforce installation restrictions based on whether the device supports the feature.

Note: For each feature required by your application, you must include a new <uses-feature> element. Multiple features cannot be declared in one instance of this element.

android:glEsVersion

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.

android:name

The name of a feature required by the application. The value must be one of the following accepted strings:

Feature	Value	Description
Camera	"android.hardware.camera"	The application requires a camera.
	"android.hardware.camera.autofocus"	The application requires a camera with auto-focus capability. As a prerequisite, "android.hardware.camera" must also be declared with a separate <uses-feature> element.
	Note: Any application that requests the CAMERA permission but does not declare any camera features with the <uses-feature> element will be assumed to use all camera features (such as auto-focus). Thus, the application will not be compatible with devices that do not support all features. Please use <uses-feature> to declare only the camera features that your application needs.

• ConfigurationInfo