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Producing Tab and Menu Icons for Android
When developing Android apps or designing graphics for Android apps, it is essential to follow certain guidelines. Using graphics designed 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.Producing Tab and Menu Icons for Android Apps Description: When designing Android apps or drawing graphics for Android apps, it is essential to follow srict guidelines. Using images designed for different systems, especially desktop-based, is not a good idea. Foreign icons will look out of place at best, or will render your Android apps hardly recognizable at worst. Body: There are precise guidelines available in reference to 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 should be provided in two distinct states: unselected and selected. It is recommended that tab icons are created as simple, flat shapes as opposed to icons shown in 3D or isometric projection.
Android OS and Android apps can run on a variety of hardware platforms employing a wide range of hardware. In connection to icon images, those platforms can have different screen sizes, screen resolutions, pixel dimensions and density. To accommodate the variety of screens, Android developers must supply 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. The size of the shape itself should not exceed 22x22, 28x28, and 42x42 pixels respectively. By providing all three standard sizes, designers can ensure that their apps will display properly on a wide range 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. Like tab icons, developers should not use 3D or isometric projections.
Screen resolutions for menu icons are described 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 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 low, medium, and high resolution icons are defined 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 pixels. Similarly, medium-definition icons should fit 30x30 and 32x32 pixel boxes, while high-definition images should fit into 44x44 and 48x48 pixel boxes respectively.
Instead of designing your own images matching these guidelines, Android developers have an option of obtaining ready-made images from professional designers. For example, Android Tab Icons by Aha-Soft offer 112 unique tab graphics in both states and all standard sizes. If an additional size is needed, developers can produce images at any resolution 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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