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Can anybody explain me what formula android use to calculate screen density?
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Dps and screen density A dp is equal to one physical pixel on a screen with a density of 160. To calculate dp: dp = (width in pixels *... A dp is equal to one physical pixel on a screen with a density of 160.
Density refers to how many pixels have been physically squeezed into a 1 inch x 1 inch area. In digital displays / screens like monitors, phones, and tablets, density measurement unit is PPI (pixels-per-inch).
Definitions. px or dot is a pixel on the physical screen. dpi are pixels per inch on the physical screen and represent the density of the display. dip or dp are density-indenpendant pixels, i.e. they correspond to more or less pixels depending on the physical density.
Density can be calculated by the following formula:
Density = sqrt((wp * wp) + (hp * hp)) / di
Where:
wp is width resolution in pixels,
hp is height resolution in pixels, and
di is diagonal size in inches.
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