PixelRatio
PixelRatio class gives access to the device pixel density.
TV relevance: Baseline React Native Web API. Useful for typography and visual scaling across TV display densities.
import { PixelRatio } from 'react-native';API
Static methods
get () => number
Returns the device pixel density as a number.
getFontScale () => number
On web this returns the device pixel ratio as a number.
getPixelSizeForLayoutSize (number) => number
Converts a layout size (dp) to pixel size (px). Guaranteed to return an integer number.
roundToNearestPixel (number) => number
Rounds a layout size (dp) to the nearest layout size that corresponds to an integer number of pixels. For example, on a device with a PixelRatio of 3, PixelRatio.roundToNearestPixel(8.4) = 8.33, which corresponds to exactly (8.33 * 3) = 25 pixels.