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Producing Standard Tab and Menu Icons for Android
When designing mobile apps or designing graphics for Android apps, one must conform to srict guidelines. Re-using icons made for different systems, especially desktop-based, is not a good idea. Foreign images will look weird at best, or will render your Android apps hardly recognizable at worst.Producing Standard Tab and Menu Icons for Android Description: When designing Android apps or drawing graphics for mobile apps, it is essential to follow certain guidelines. Re-using icons designed for different operating systems, especially desktop-based, is not a good idea. Foreign graphics will look out of place at best, or will render your Android apps hardly recognizable at worst. Body: There are strict guidelines available in reference to Android icons. Different design guidelines are published for tab icons and menu images.
Tab icons represent individual tabs in tabbed UI. Tab icons must be supplied in two distinct states: unselected and selected. It is recommended that tab icons are drawn as simple, flat shapes as opposed to images drawn in 3D or isometric projection.
Android OS and Android apps are used on a multitude of different platforms employing a wide range of hardware. In connection to icon graphics, those platforms can have different display sizes, display resolutions, pixel density and dimensions. To accommodate the variety of displays, Android developers must supply all tab icons used in their apps in at least three resolutions to be shown on low, medium, and high density displays. Resolution-wise, the outer boundaries for the three resolutions are defined as 24x24, 32x32, and 48x48 pixels. Inner dimensions should not exceed 22x22, 28x28, and 42x42 pixels respectively. By including all three standard resolutions, designers can ensure that their apps will be shown properly on a wide range of platforms running the Android OS.
Menu icons are used in the "options" menu, and are displayed to users when they press the Menu button. Similar to tab icons, menu icons are specified as flat, greyscale images. Like tab icons, developers cannot use 3D or isometric projections.
Pixel resolutions for menu icons are defined in a slightly more comprehensive way compared 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 bigger depending on whether they are square-shaped or not. 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 size across the two icon types.
The outer dimensions for ldpi, mdpi and hdpi 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 dots. Similarly, mdpi icons should fit 30x30 and 32x32 pixel boxes, while high-definition images should fit into 44x44 and 48x48 pixel rectangles respectively.
Instead of drawing your own icons conforming to these guidelines, Android developers have an option of getting ready-made graphics from professional designers. For example, Android Tab Icons by Aha-Soft offer 112 unique tab graphics in selected and unselected states and all standard resolutions. Should additional resolutions be required, developers can render icons at any size by opening scalable vector sources. Android Tab Icons can be viewed and downloaded at http://www.aha-soft.com/stock-icons/android-tab-icons.htm.
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