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 Angel Icon |
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Making Standard Tab and Menu Icons for Android Apps
When developing Android apps or drawing graphics for mobile apps, one must conform to certain guidelines. Using graphics designed for different operating systems, especially desktop-based, is not a good idea. Foreign icons will look weird at best, or will make your Android apps appear 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 certain guidelines. Re-using graphics made for different operating systems, especially desktop-based, is not a good idea. Foreign images will look weird at best, or will render your Android apps appear 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 images.
Tab icons are drawn in individual tabs in tabbed UI. 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 graphics drawn in 3D or isometric projection.
Android OS and Android apps are used on a variety of different platforms employing a wide range of hardware. In reference to icon images, those devices can have different screen sizes, display resolutions, pixel dimensions and density. To accommodate the wide range of displays, Android developers should 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 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 resolutions, designers can ensure that their apps will display 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 are specified as flat, grayscale images. Like tab icons, developers should not use 3D or isometric projections.
Pixel sizes for menu icons are described in a slightly more complex way as opposed to to tab icons. Instead of two sizes 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 specifying two different size limits 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, mdpi 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 getting stock icons from professional designers. As an example, Android Tab Icons by Aha-Soft offer 112 unique tab graphics in selected and unselected states and all standard sizes. Should additional resolutions be required, developers can render 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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