react-native-lipstick

Add powerful styling to your react-native components, including scaling, global variables, selectors and more !

Why this ?

Working with style in react-native is lovely ! But it's also really painful when it comes to repeat the same things : using colors, scaling sizes, sharing style among multiple components...

This is where Lipstick comes in : it replaces the default StyleSheet object provided by react and allows you to do much more funny things !

Installation

npm install --save react-native-lipstick

OR

yarn add react-native-lipstick

Example

import React from "react";
import { View } from "react-native";
import StyleSheet from "react-native-lipstick";

const styles = StyleSheet.create({
  $blue: "#5a99ee",

  // Reuse of the global $blue
  topBar: {
    backgroundColor: "$blue",
    height: "60@vs",
    width: "100%",
  },

  // @vs scales the value vertically given screen height
  // @s scales horizontally given screen width
  profilePicture: {
    height: "25@vs",
    width: "25@s",
  },

  // apply a borderWidth of 1 to both topBar and profilePicture
  'topBar|profilePicture': {
    borderWidth: 1,
  }
});

export const Element = () => (
  <View style={styles.topBar}>
    <Image style={styles.profilePicture} source={{ uri: "https://..." }} />
  </View>
)

Plugins

Lipstick works with a plugin system : actually, everything is a plugin in Lipstick ! By default are provided three plugins :

• globalVariablePlugin : allows the usage of global variables
• multiSelectorsPlugin : handle the use of selectors (like 'topBar|profilePicture')
• scalePlugin : scales the values according to the screen dimensions so your app looks the same on every screen (inspired by react-native-size-matters)

Write your own plugin !

A plugin is a simple function that takes a style in, and spit a style out. It's really easy to add your own !

import StyleSheet from "react-native-lipstick";

StyleSheet.addPlugin((object) => {
  // Do whatever you want with the object and return the modified style !
  return object;
});

Performances ?

I really don't know if it's a threat in terms of performance, because in depth every plugin loops through every keys of the style object. I think it's gonna add a few ms to launch time, so it's really not noticeable.

If you have ideas or anything on this please share :)