React-native-responsive-pixels NPM

📱 React Native Responsive Pixels

Description

This package is created for responsive UI calculations in React Native. If you are using a base device or dimensions to create UI this package can help you.

E.g. You are creating the UI based on the desings that created on iPhone X in Figma. If you wanted to have same look on all devices, you just need to set base device as iPhone X then use the values on your design. This package is going to help you about responsive calculations.

Installation

This is a pure JS library so you just need to install npm package. To install this package run the command below on Terminal.

npm install react-native-responsive-pixels --save

Usage

Sample Usage

You can just import methods and use it with values.

import React from 'react';
import { convertX, convertY, scaleFont } from 'react-native-responsive-pixels';

const BASE_WIDTH = 375;
const BASE_HEIGHT = 812;

const App = () => {
  return (
    <View style= {{width: convertX(300, BASE_WIDTH), height: convertY(500, BASE_HEIGHT) }}>
        <Text style={{ fontSize: scaleFont(24, BASE_WIDTH) }}> 
            Lorem ipsum dolor sit amet.
        </Text>
    </View>
  );
};

export default App;

Recommended Usage

Recommended usage is creating an util file and setting base device's dimensions once. Then using methods from utils file.

Util.ts file 👇

import { convertX, convertY, scaleFont, Devices } from 'react-native-responsive-pixels';

const BASE_WIDTH = 375;
const BASE_HEIGHT = 812;

export const getXValue = (value: number) => {
  return convertX(value, BASE_WIDTH);
}

export const getYValue = (value: number) => {
  return convertY(value, BASE_HEIGHT);
}

export const getFontSize = (value: number) => {
  return scaleFont(value, BASE_WIDTH);
}

App.tsx file 👇

import React from 'react';
import { convertX, convertY, scaleFont } from './utils.ts';

const App = () => {
  return (
    <View style= {{width: getXValue(300), height: getYValue(500) }}>
        <Text style={{ fontSize: scaleFont(24) }}> 
            Lorem ipsum dolor sit amet.
        </Text>
    </View>
  );
};

export default App;

Using "Devices" Enum

If you don't know your base device's width and height, you can select it from "Devices" enum. It automatically gets base width and height for desired device.

Util.ts file 👇

import { convertX, convertY, scaleFont, Devices } from 'react-native-responsive-pixels';

export const getXValue = (value: number) => {
  return convertX(value, Devices.iPhoneX);
}

export const getYValue = (value: number) => {
  return convertY(value, Devices.iPhoneX);
}

export const getFontSize = (value: number) => {
  return scaleFont(value, Devices.iPhoneX);
}

Then you can import and use this methods.