Android Tutorial

By : Ketan Bhimani

110 

application requires features available only in later versions of

OpenGL ES, such as 2.0, then you must specify this feature in the

Android manifest file. This is done using the android:glEsVersion

attribute of the <uses-feature> tag. Specify the lowest version of

OpenGL ES that the application requires. If the application works

with 1.0 and 2.0, specify the lowest version (so that the Android

Market allows more users to install your application).

For more information about the <uses-feature> tag of the Android

manifest file, see the Android SDK reference.

Specifying Supported Screen Sizes

Android devices come in many shapes and sizes. Screen sizes and

pixel densities vary widely across the range of Android devices

available on the market today. The Android platform categorizes

screen types in terms of sizes (small, normal, and large) and pixel

density (low, medium, and high).These characteristics effectively

cover the variety of screen types available within the Android

platform.

An application can provide custom resources for specific screen

sizes and pixel densities (we cover this in Chapter “Managing

Application Resources”).The <supportsscreen> tag can be used to

specify which Android types of screens the application supports.

For example, if the application supports QVGA screens (small) and

HVGA screens (normal) regardless of pixel density, the <supports-

screen> tag is configured as follows:

<supports-screens android:smallScreens="true"
android:normalScreens="true"
android:largeScreens"false"
android:anyDensity="true"/>