rn-resp-dim/src/index.js

Resposive fontSize, height and width for your react-native components. [Modified from react-native-responsive-dimensions]

/**
 * MIT License
 *
 * Copyright (c) 2017-present DaniAkash
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

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

const { height, width } = Dimensions.get("window");

export const responsiveHeight = h => {
 return PixelRatio.get() == 3 ? height * (h / 115) : height * (h / 100);
};

export const responsiveWidth = w => {
 return PixelRatio.get() == 3 ? width * (w / 115) : width * (w / 100);
};

export const responsiveFontSize = f => {
 return PixelRatio.get() == 3
   ? Math.sqrt(height * height + width * width) * (f / 115)
   : Math.sqrt(height * height + width * width) * (f / 100);
};
export const normalize = size => {
 if (Platform.OS === "ios") {
   return Math.round(PixelRatio.roundToNearestPixel(size));
 } else {
   return Math.round(PixelRatio.roundToNearestPixel(size)) - 2;
 }
};