itkitchen-react-native-ui-lib/src/functions/normalize.js

itkitchen react-native ui lib

import { Dimensions, Platform, PixelRatio } from 'react-native';

const {
    width: SCREEN_WIDTH,
    height: SCREEN_HEIGHT,
} = Dimensions.get('window');

// based on iphone 5s's scale
const scale = SCREEN_WIDTH / 320;

export function normalize(size) {
    const newSize = size * scale
    if (Platform.OS === 'ios') {
        return Math.round(PixelRatio.roundToNearestPixel(newSize))
    } else {
        return Math.round(PixelRatio.roundToNearestPixel(newSize)) - 2
    }
}