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 Army Officer Icon |
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Making Standard Tab and Menu Icons for Android
When developing Android apps or designing graphics for Android apps, it is essential to conform to srict guidelines. Re-using graphics made for other systems, especially desktop-based, is generally not a good idea. Foreign icons will look out of place at best, or will render your Android apps hardly recognizable at worst.Making Standard Tab and Menu Icons for Android Apps Description: When developing mobile apps or drawing graphics for mobile apps, it is essential to follow certain guidelines. Re-using icons designed for other systems, especially desktop-based, is generally not a good idea. Foreign graphics will look out of place at best, or will make your Android apps hardly recognizable at worst. Body: There exist precise guidelines available in reference to Android icons. Different design guidelines are published for tab icons and menu graphics.
Tab icons are drawn in individual tabs in tabbed interface. Tab icons must be supplied in two different states: unselected and selected. It is required that tab icons are created as simple, flat shapes as opposed to graphics shown in 3D or isometric projection.
Android OS and Android apps are used on a variety of hardware 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 variety of displays, Android developers should provide all tab icons used in their apps in at least three resolutions to be displayed on low, medium, and high density displays. Pixel-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 providing all three standard resolutions, designers can ensure that their apps will be shown properly on a variety of devices running the Android OS.
Menu icons are used in the "options" menu, and are displayed to users when they press the Menu button. Similar to tab icons, menu icons should be flat, grayscale images. Like tab icons, developers cannot use 3D or isometric projections.
Screen sizes for menu icons are described 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 larger depending on whether they are square-shaped or not. If a menu icon is square-shaped, its dimensions should be smaller than for icons with different shapes. 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 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 boundaries, while high-definition images should fit into 44x44 and 48x48 pixel boundaries respectively.
Instead of designing your own graphics matching these guidelines, Android developers have an option of ordering 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 produce graphics 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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