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 Army Officer Icon |
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Designing Tab and Menu Icons for Android
When designing mobile apps or drawing graphics for Android apps, it is essential to follow certain guidelines. Using images made for other systems, especially desktop-based, is not a good idea. Foreign icons will look weird at best, or will make your Android apps hardly recognizable at worst.Designing Tab and Menu Icons for Android Description: When designing Android apps or drawing graphics for Android apps, it is essential to conform to certain guidelines. Using graphics designed for different operating systems, especially desktop-based, is generally not a good idea. Foreign icons will look weird at best, or will make your Android apps appear hardly recognizable at worst. Body: There are precise guidelines published in reference to Android icons. Different design guidelines are available for tab icons and menu graphics.
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 designed as simple, flat shapes as opposed to images drawn in 3D or isometric projection.
Android OS and Android apps can run on a wide range of different platforms employing a wide range of hardware. In connection to icon graphics, those devices can have different display sizes, display 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 drawn on low, medium, and high density displays. Resolution-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 wide range of devices running the Android OS.
Menu icons are drawn in the "options" menu, and are shown to users 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.
Pixel resolutions for menu icons are described in a slightly more complex way compared to tab icons. Instead of two sizes defined 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 resolution should be smaller than for icons with different shapes. The reason for having two different sizes is to establish a consistent visual weight across the two icon types.
The outer dimensions for ldpi, mdpi and hdpi 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 dots. Similarly, medium-definition icons should fit 30x30 and 32x32 pixel boxes, while high-definition images should fit into 44x44 and 48x48 pixel rectangles respectively.
Instead of drawing your own icons matching these guidelines, Android developers have an option of obtaining ready-made images from professional designers. As an example, Android Tab Icons by Aha-Soft offer 112 unique tab graphics in both states and all standard resolutions. If an additional size is needed, developers can render icons at any resolution by accessing scalable vector sources. Android Tab Icons can be viewed and downloaded at http://www.aha-soft.com/stock-icons/android-tab-icons.htm.
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