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Designing Standard Tab and Menu Icons for Android
When designing mobile apps or designing graphics for Android apps, one must follow srict guidelines. Using images made for other operating systems, especially desktop-based, is not a good idea. Foreign icons will look out of place at best, or will render your Android apps appear hardly recognizable at worst.Making Standard Tab and Menu Icons for Android Apps Description: When developing Android apps or designing graphics for Android apps, one must follow srict guidelines. Re-using icons designed for different operating systems, especially desktop-based, is generally not a good idea. Foreign images will look out of place at best, or will make your Android apps hardly recognizable at worst. Body: There are precise guidelines available for designing standard-compliant Android icons. Different design guidelines are available for tab icons and menu images.
Tab icons are drawn in individual tabs in tabbed interface. Tab icons should be supplied in two different states: selected and unselected. It is recommended that tab icons are designed as simple, flat shapes as opposed to graphics shown in 3D or isometric projection.
Android OS and Android apps are used on a multitude of different platforms using a wide range of hardware. In reference to icon images, those platforms can have different screen sizes, display resolutions, pixel density and dimensions. To accommodate the wide range 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 supplying all three standard sizes, developers can ensure that their apps will be shown properly on a wide range 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 are specified as flat, grayscale images. Just as tab icons, developers cannot use 3D or isometric projections.
Pixel resolutions for menu icons are described in a slightly more comprehensive way compared to tab icons. Instead of just two sizes defined for tab graphics (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 resolution should be smaller than for icons with different shapes. The reason for specifying two different sizes is to establish a consistent visual weight across the two icon types.
The outer dimensions for low, medium, and high resolution icons are described 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 boundaries, while high-definition images should fit into 44x44 and 48x48 pixel boundaries respectively.
Instead of designing your own images matching these guidelines, Android developers have an option of getting ready-made icons from professional designers. For example, Android Tab Icons by Aha-Soft offer 112 unique tab icons in selected and unselected states and all three standard sizes. If an additional size is needed, developers can produce icons at any size by accessing 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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