Android Tutorial

Android Tutorial 109

two separate <uses- configuration> tags in your manifest file, as

follows:

<uses-configuration android:reqHardKeyboard="true"
android:reqTouchScreen="finger" />
<uses-configuration android:reqHardKeyboard="true"
android:reqTouchScreen="stylus" />

Specifying Required Device Features

Not all Android devices support every Android feature. Put another

way: There are a number of APIs (and related hardware) that

Android devices may optionally include. For example, not all

Android devices have multi-touch ability or a camera flash.

The <uses-feature> tag can be used to specify which Android

features the application requires to run properly. These settings are

for informational purposes only—the Android operating system

does not enforce these settings, but publication channels such as

the Android Market use this information to filter the applications

available to a given user.

If your application requires multiple features, you must create a

<uses-feature> tag for each. For example, an application that

requires both a light and proximity sensor requires two tags:

One common reason to use the <uses-feature> tag is for

specifying the OpenGL ES versions supported by your application.

By default, all applications function with OpenGL ES 1.0 (which is a

required feature of all Android devices). However, if your