badeggg / react-native-live-markdown Goto Github PK

• ⚛️ Drop-in replacement for <TextInput> component
• ⌨️ Live synchronous formatting on every keystroke
• ⚡ Fully native experience (selection, spellcheck, autocomplete)
• 🎨 Customizable styles
• 🌐 Universal support (Android, iOS, web)
• 🏗️ Supports New Architecture

First, install the library from npm with the package manager of your choice:

yarn add @expensify/react-native-live-markdown
npm install @expensify/react-native-live-markdown --save
npx expo install @expensify/react-native-live-markdown

Then, install the iOS dependencies with CocoaPods:

cd ios && pod install

The library includes native code so you will need to re-build the native app.

import {MarkdownTextInput} from '@expensify/react-native-live-markdown';
import React from 'react';

export default function App() {
  const [text, setText] = React.useState('Hello, *world*!');

  return (
    <MarkdownTextInput
      value={text}
      onChangeText={setText}
    />
  );
}

MarkdownTextInput can be styled using style prop just like regular TextInput component.

It is also possible to customize the styling of the formatted contents of MarkdownTextInput component. The style object supports all color representations from React Native including PlatformColor and DynamicColorIOS according to the color reference. Currently, a limited set of styles is customizable but this is subject to change in the future.

import type {MarkdownStyle} from '@expensify/react-native-live-markdown';

const FONT_FAMILY_MONOSPACE = Platform.select({
  ios: 'Courier',
  default: 'monospace',
});

const markdownStyle: MarkdownStyle = {
  syntax: {
    color: 'gray',
  },
  link: {
    color: 'blue',
  },
  h1: {
    fontSize: 25,
  },
  emoji: {
    fontSize: 20,
  },
  blockquote: {
    borderColor: 'gray',
    borderWidth: 6,
    marginLeft: 6,
    paddingLeft: 6,
  },
  code: {
    fontFamily: FONT_FAMILY_MONOSPACE,
    fontSize: 20,
    color: 'black',
    backgroundColor: 'lightgray',
  },
  pre: {
    fontFamily: FONT_FAMILY_MONOSPACE,
    fontSize: 20,
    color: 'black',
    backgroundColor: 'lightgray',
  },
  mentionHere: {
    color: 'green',
    backgroundColor: 'lime',
  },
  mentionUser: {
    color: 'blue',
    backgroundColor: 'cyan',
  },
};

The style object can be passed to multiple MarkdownTextInput components using markdownStyle prop:

<MarkdownTextInput
  value={text}
  onChangeText={setText}
  style={styles.input}
  markdownStyle={markdownStyle}
/>

Currently, react-native-live-markdown supports only ExpensiMark flavor. We are working on CommonMark support as well as possibility to use other Markdown parsers.

MarkdownTextInput inherits all props of React Native's TextInput component as well as introduces the following properties:

react-native-live-markdown requires React Native 0.71 or newer.

MIT