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Producing Tab and Menu Icons for Android Apps
When designing mobile apps or drawing graphics for mobile apps, one must follow srict guidelines. Using icons made for other 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 appear hardly recognizable at worst.Producing Tab and Menu Icons for Android Description: When developing mobile apps or drawing graphics for Android apps, one must follow srict guidelines. Using icons made for other operating 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. Body: There are strict guidelines available in reference to Android icons. Different design guidelines are available for tab icons and menu icons.
Tab icons are drawn in individual tabs in tabbed interface. Tab icons must be supplied in two different states: unselected and selected. It is recommended that tab icons are designed as simple, flat shapes as opposed to images drawn in 3D or isometric projection.
Android OS and Android apps are used on a variety of different platforms using a wide range of hardware. In connection to icon images, those devices can have different display sizes, screen resolutions, pixel dimensions and density. To accommodate the variety of displays, Android developers must provide all tab icons used in their apps in at least three resolutions to be displayed on low, medium, and high density displays. Resolution-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 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 drawn in the "options" menu, and are displayed 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 should not use 3D or isometric projections.
Screen resolutions for menu icons are defined in a slightly more complex way as opposed to to tab icons. Instead of two resolutions described for tab graphics (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 size should be smaller than for icons shaped otherwise. The reason for having two different sizes 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 dots. 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 drawing your own icons conforming to 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 selected and unselected states and all three standard resolutions. 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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