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Designing Standard Tab and Menu Icons for Android
When designing mobile apps or drawing graphics for mobile apps, one must conform to srict guidelines. Re-using graphics made for different operating systems, especially desktop-based, is generally not a good idea. Foreign icons will look weird at best, or will render your Android apps appear hardly recognizable at worst.Making Tab and Menu Icons for Android Description: When developing Android apps or designing graphics for mobile apps, one must conform to srict guidelines. Re-using icons made for other systems, especially desktop-based, is not a good idea. Foreign icons will look weird at best, or will render your Android apps hardly recognizable at worst. Body: There exist precise guidelines published in reference to Android icons. Different design guidelines are available for tab icons and menu images.
Tab icons are drawn in individual tabs in tabbed UI. Tab icons must be provided in two distinct states: selected and unselected. It is recommended that tab icons are created as simple, flat shapes as opposed to icons drawn in 3D or isometric projection.
Android OS and Android apps can run on a multitude of different platforms employing a wide range of hardware. In connection to icon images, those devices can have different display sizes, display resolutions, pixel dimensions and density. To accommodate the variety of screens, Android developers must provide all tab icons used in their apps in at least three resolutions to be displayed on low, medium, and high density screens. Pixel-wise, the outer boundaries for the three resolutions are defined as 24x24, 32x32, and 48x48 pixels. The size of the shape itself should not exceed 22x22, 28x28, and 42x42 pixels respectively. By providing all three standard sizes, developers can ensure that their apps will display properly on a variety of devices running the Android OS.
Menu icons are displayed in the "options" menu, and are shown to the user when they press the Menu button. Similar to tab icons, menu icons should be flat, grayscale images. Just as tab icons, developers should not use 3D or isometric projections.
Pixel sizes for menu icons are described in a slightly more comprehensive way as opposed to to tab icons. Instead of two resolutions described for tab icons (inner shape and boundary box), the inner shape of menu icons can be smaller or larger depending on their shape. If a menu icon is square-shaped, its dimensions should be smaller than for icons shaped otherwise. The reason for having two different size limits is to establish a consistent visual weight across the two icon types.
The outer dimensions for low, medium, and high resolution icons are defined as 36x36, 48x48, and 72x72 pixels respectively. Inner shapes for square, low-definition icons is 22x22 pixels, while non-square icons should fit into a boundary box sized 24x24 pixels. Similarly, medium-definition icons should fit 30x30 and 32x32 pixel boxes, while high-definition images should fit into 44x44 and 48x48 pixel boundaries respectively.
Instead of drawing your own graphics conforming to these guidelines, Android developers have an option of ordering ready-made icons from professional designers. As an example, Android Tab Icons by Aha-Soft offer 112 unique tab icons in both states and all three standard sizes. Should additional resolutions be required, developers can render icons at any size by opening scalable vector sources. Android Tab Icons can be previewed and downloaded at http://www.aha-soft.com/stock-icons/android-tab-icons.htm.
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