react-native-stylable

Cascading styles for ReactNative. A components for easy styling you React Native application.

⚠️ The package is currently in alpha stage of development. If you find a bug or missing functionality, please feel free to report, but better fix or implement what you want and send a pull request to GitHub repository.

Installation

npm install --save react-native-stylable

Usage

// app.js
import React from 'react'
import { StyleProvider } from 'react-native-stylable'
 
import AppView from './AppView'
import styleSheet from './styles'
 
const App = () => <StyleProvider styleSheet={styleSheet}>
  <AppView/>
</StyleProvider>
 
export default App

// styles.js
import { Stylesheet } from 'react-native-stylable'
 
const s = new Stylesheet()
// Global styles, theme code, etc...
// Will overwrite defaults...
s.addRules({
  'baseText': {
    style: { fontSize: 8 }
  }
})
export default s

// some component, Item.js for ex
import PropTypes from 'prop-types'
import React from 'react'
import { Image, Text, View } from 'react-native'
import { stylable } from 'react-native-stylable'
 
import styleSheet from './styles'
 
// default styles for our component
styleSheet.addDefaultRules({
  Item: {
    style: {
      borderWidth: 1,
      borderColor: 'rgb(240,240,240)',
      margin: 4,
      flex: 1
    }
  },
  'Item Description': {
    style: {
      marginHorizontal: 12
    }
  },
  'Item PriceText': {
    mixins: ['baseText'],
    style: {
      fontWeight: 'bold'
    }
  },
  'Item DescriptionText': {
    mixins: ['baseText'],
    style: {
      marginVertical: 6
    }
  },
  'Item Image': {
    style: {
      left: 0,
      right: 0,
      height: 160
    }
  }
})
 
const Description = stylable('Description')(View)
const DescriptionText = stylable('DescriptionText')(Text)
const Image = stylable('Image')(Image)
const PriceText = stylable('PriceText')(Text)
 
class Item extends React.Component {
  static propTypes = {
    modelItem: PropTypes.object.isRequired
  }
  render () {
    const { modelItem, ...other } = this.props
    const price = modelItem.price + modelItem.currency
    const uri = modelItem.imageUri
    return <View {...other}>
      <Image source={{uri}} />
      <Description>
        <DescriptionText>{modelItem.name}</DescriptionText>
        <PriceText>{price}</PriceText>
      </Description>
    </View>
  }
}
 
export default stylable('Item')(Item)

API

import { StyleSheet, StyleProvider, stylable } from 'react-native-stylable'

Stylesheet

Holds style rules.

Constructor

Creates new empty style sheet.

const styleSheet = new StyleSheet()

addDefaultRules(rules:Object)

Add default (low priority) rules to style sheet. This method intended to be called from custom components code to provide default styles.

addRules(rules:Object)

Add normal rules. This method intended to be called from application startup to provide customizations.

Rules object

Each rule has selector and properties.

Selector is an element name or sequence of names separated by space (same as descendant selectors in CSS). Also any element name can be suffixed with variant with dot symbol (ex: Button.active ButtonTitle), variants works like classes in CSS.

Properties is an object, that can contains mixins, props and style keys.

• mixins - Array of others element names.
• props - Properties to be added to React component.
• style - Styles to be added to style of React component.

StyleProvider

React component that provides StyleSheet to other stylable components.

<StyleProvider styleSheet={styleSheet}>{other app components}</StyleSheet>

stylable(name:String):Function

Return function (fn(component:Component):Component) to produce Higher Order Component with name that pass props and style from StyleSheet to wrapped component. Also generated component can accept one additional property - variant to dynamically change styles.

Author

Vladimir Timofeev

License

Source code is licensed under the MIT License.