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 Cash Register Icon |
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Making Standard Tab and Menu Icons for Android
When developing mobile apps or designing graphics for Android apps, one must follow srict guidelines. Using icons made for other systems, especially desktop-based, is not a good idea. Foreign images will look out of place at best, or will render your Android apps appear hardly recognizable at worst.Making Tab and Menu Icons for Android Description: When designing Android apps or drawing graphics for Android apps, it is essential to conform to srict guidelines. Using graphics made for different 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 strict guidelines published for designing standard-compliant Android icons. Different design guidelines are available for tab icons and menu icons.
Tab icons represent individual tabs in tabbed UI. Tab icons must be supplied in two different states: unselected and selected. It is required that tab icons are drawn as simple, flat shapes as opposed to icons shown in 3D or isometric projection.
Android OS and Android apps can run on a multitude of hardware platforms employing a wide range of hardware. In reference to icon images, those devices can have different screen sizes, display resolutions, pixel density and dimensions. To accommodate the wide range of screens, Android developers should provide all tab icons used in their apps in at least three resolutions to be drawn 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 including all three standard sizes, designers can ensure that their apps will be shown properly on a variety of platforms running the Android OS.
Menu icons are used in the "options" menu, and are displayed to the user when they press the Menu button. Similar to tab icons, menu icons are specified as flat, greyscale 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 compared 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 bigger 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 ldpi, mdpi and hdpi icons are described as 36x36, 48x48, and 72x72 pixels respectively. Inner shapes for square, low-definition icons should be 22x22 pixels, while non-square icons should fit into a boundary box sized 24x24 dots. Similarly, mdpi 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 conforming to these guidelines, Android developers have an option of getting ready-made images from professional designers. For example, Android Tab Icons by Aha-Soft include 112 unique tab graphics in selected and unselected states and all three standard resolutions. Should additional resolutions be required, developers can produce graphics 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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