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 Worker Icon |
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Producing Tab and Menu Icons for Android
When developing mobile apps or drawing graphics for Android apps, it is essential to conform to srict guidelines. Re-using graphics designed for other systems, especially desktop-based, is generally not a good idea. Foreign graphics will look weird at best, or will render your Android apps hardly recognizable at worst.Making Standard Tab and Menu Icons for Android Description: When developing mobile apps or drawing graphics for mobile apps, one must conform to srict guidelines. Using icons designed for other operating systems, especially desktop-based, is generally not a good idea. Foreign graphics will look out of place at best, or will make your Android apps appear hardly recognizable at worst. Body: There exist strict guidelines available for designing standard-compliant Android icons. Different design guidelines are published for tab icons and menu images.
Tab icons are drawn in individual tabs in tabbed interface. Tab icons must be supplied in two distinct states: selected and unselected. It is recommended that tab icons are drawn as simple, flat shapes as opposed to graphics shown in 3D or isometric projection.
Android OS and Android apps can run on a multitude of different platforms using a wide range of hardware. In reference to icon images, those platforms can have different display sizes, screen resolutions, pixel density and dimensions. To accommodate the wide range of displays, Android developers should 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 sizes are defined as 24x24, 32x32, and 48x48 pixels. Inner dimensions should not exceed 22x22, 28x28, and 42x42 pixels respectively. By providing all three standard resolutions, designers can ensure that their apps will display properly on a variety of devices running the Android OS.
Menu icons are used 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 cannot use 3D or isometric projections.
Screen sizes for menu icons are defined in a slightly more complex way as opposed to to tab icons. Instead of just two resolutions described for tab icons (inner shape and boundary box), the inner shape of menu icons can be smaller or larger depending on whether they are square-shaped or not. 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 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, mdpi icons should fit 30x30 and 32x32 pixel boundaries, while high-definition images should fit into 44x44 and 48x48 pixel rectangles respectively.
Instead of designing your own icons matching these guidelines, Android developers have an option of obtaining ready-made icons from professional designers. As an example, Android Tab Icons by Aha-Soft offer 112 unique tab icons in selected and unselected states and all standard sizes. Should additional resolutions be required, developers can produce icons at any resolution 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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