npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@kingstinct/react-native-dark-mode

v0.1.1

Published

Detect dark mode in React Native

Downloads

3

Readme

react-native-dark-mode

npm version PRs Welcome

Installation

npm install react-native-dark-mode
# If you're running React Native 0.59 or lower also run `react-native link react-native-dark-mode`

Usage

High level APIs

useDarkMode

Returns a boolean. true when dark mode is on.

import { useDarkMode } from 'react-native-dark-mode'

function Component() {
	const isDarkMode = useDarkMode()
	return <View style={{ backgroundColor: isDarkMode ? 'black' : 'white' }} />
}

useDarkModeContext

Returns dark or light.

import { useDarkModeContext } from 'react-native-dark-mode'

const backgroundColors = {
	light: 'white',
	dark: 'black',
}

function Component() {
	const mode = useDarkModeContext()
	const backgroundColor = backgroundColors[mode]
	return <View style={{ backgroundColor }} />
}

DynamicStyleSheet, DynamicValue and useDynamicStyleSheet

Just like StyleSheet but with support for dynamic values.

import { DynamicStyleSheet, DynamicValue, useDynamicStyleSheet } from 'react-native-dark-mode'

const dynamicStyles = new DynamicStyleSheet({
	container: {
		backgroundColor: new DynamicValue('white', 'black'),
		flex: 1,
	},
	text: {
		color: new DynamicValue('black', 'white'),
		textAlign: 'center',
	},
})

function Component() {
	const styles = useDynamicStyleSheet(dynamicStyles)

	return (
		<View style={styles.container}>
			<Text style={styles.text}>My text</Text>
		</View>
	)
}

DarkModeProvider

Allows you to set a specific mode for children.

import { DarkModeProvider } from 'react-native-dark-mode'

function MyScreen() {
	return (
		<>
			{/* will be rendered using dark theme */}
			<DarkModeProvider mode="dark">
				<Component />
			</DarkModeProvider>

			{/* will be rendered using light theme */}
			<DarkModeProvider mode="light">
				<Component />
			</DarkModeProvider>

			{/* will be rendered using current theme */}
			<Component />
		</>
	)
}

It is recommended to wrap your application in a DarkModeProvider without a mode prop to observe a performance improvement.

function App() {
	return (
		<DarkModeProvider>
			{/* ... */}
		</DarkModeProvider>
	)
}

useDynamicValue

Returns the appropriate value depending on the theme. You can either pass a DynamicValue or just two arguments.

import { DynamicValue, useDynamicValue } from 'react-native-dark-mode'
const lightLogo = require('./light.png')
const darkLogo = require('./dark.png')
const logoUri = new DynamicValue(lightLogo, darkLogo)

function Logo() {
	const source = useDynamicValue(logoUri)
	return <Image source={source} />
}
import { useDynamicValue } from 'react-native-dark-mode'

function Input() {
	const placeholderColor = useDynamicValue('black', 'white')
	return <TextInput placeholderTextColor={placeholderColor} />
}

Low level APIs

initialMode

This is the initial mode that the app started in.

import { initialMode } from 'react-native-dark-mode'

console.log('App started in', intialMode, 'mode')

eventEmitter

Allows you to subscribe to changes in the mode.

import { eventEmitter } from 'react-native-dark-mode'

eventEmitter.on('currentModeChanged', newMode => {
	console.log('Switched to', newMode, 'mode')
})

Requirements

iOS

  • Xcode 11 beta 1 or higher
  • React Native 0.59.9 or higher
  • iOS 13 beta 1 or higher to see it in action