[javascript] How does one Display a Hyperlink in React Native App?

How do I display a hyperlink in a React Native app?

e.g.

<a href="https://google.com>Google</a> 

for the React Native, there is library to open Hyperlinks in App. https://www.npmjs.com/package/react-native-hyperlink

In addition to this, i suppose you will need to check url and best approach is Regex. https://www.npmjs.com/package/url-regex

The selected answer refers only to iOS. For both platforms, you can use the following component:

import React, { Component, PropTypes } from 'react';
import {
  Linking,
  Text,
  StyleSheet
} from 'react-native';

export default class HyperLink extends Component {

  constructor(){
      super();
      this._goToURL = this._goToURL.bind(this);
  }

  static propTypes = {
    url: PropTypes.string.isRequired,
    title: PropTypes.string.isRequired,
  }

  render() {

    const { title} = this.props;

    return(
      <Text style={styles.title} onPress={this._goToURL}>
        >  {title}
      </Text>
    );
  }

  _goToURL() {
    const { url } = this.props;
    Linking.canOpenURL(url).then(supported => {
      if (supported) {
        Linking.openURL(this.props.url);
      } else {
        console.log('Don\'t know how to open URI: ' + this.props.url);
      }
    });
  }
}

const styles = StyleSheet.create({
  title: {
    color: '#acacac',
    fontWeight: 'bold'
  }
});

Use React Native Hyperlink (Native <A> tag):

Install:

npm i react-native-a

import:

import A from 'react-native-a'

Usage:

1. <A>Example.com</A>
2. <A href="example.com">Example</A>
3. <A href="https://example.com">Example</A>
4. <A href="example.com" style={{fontWeight: 'bold'}}>Example</A>

Import Linking the module from React Native

import { TouchableOpacity, Linking } from "react-native";

Try it:-

<TouchableOpacity onPress={() => Linking.openURL('http://Facebook.com')}>
     <Text> Facebook </Text>     
</TouchableOpacity>

Another helpful note to add to the above responses is to add some flexbox styling. This will keep the text on one line and will make sure the text doesn't overlap the screen.

 <View style={{ display: "flex", flexDirection: "row", flex: 1, flexWrap: 'wrap', margin: 10 }}>
  <Text>Add your </Text>
  <TouchableOpacity>
    <Text style={{ color: 'blue' }} onpress={() => Linking.openURL('https://www.google.com')} >
         link
    </Text>
   </TouchableOpacity>
   <Text>here.
   </Text>
 </View>

React Native documentation suggests using Linking:

Reference

Here is a very basic use case:

import { Linking } from 'react-native';

const url="https://google.com"

<Text onPress={() => Linking.openURL(url)}>
    {url}
</Text>

You can use either functional or class component notation, dealers choice.

If you want to do links and other types of rich text, a more comprehensive solution is to use React Native HTMLView.

You can use linking property <Text style={{color: 'skyblue'}} onPress={() => Linking.openURL('http://yahoo.com')}> Yahoo

To do this, I would strongly consider wrapping a Text component in a TouchableOpacity. When a TouchableOpacity is touched, it fades (becomes less opaque). This gives the user immediate feedback when touching the text and provides for an improved user experience.

You can use the onPress property on the TouchableOpacity to make the link happen:

<TouchableOpacity onPress={() => Linking.openURL('http://google.com')}>
  <Text style={{color: 'blue'}}>
    Google
  </Text>
</TouchableOpacity>

Just thought I'd share my hacky solution with anyone who's discovering this problem now with embedded links within a string. It attempts to inline the links by rendering it dynamically with what ever string is fed into it.

Please feel free to tweak it to your needs. It's working for our purposes as such:

This is an example of how https://google.com would appear.

View it on Gist:

https://gist.github.com/Friendly-Robot/b4fa8501238b1118caaa908b08eb49e2

import React from 'react';
import { Linking, Text } from 'react-native';

export default function renderHyperlinkedText(string, baseStyles = {}, linkStyles = {}, openLink) {
  if (typeof string !== 'string') return null;
  const httpRegex = /http/g;
  const wwwRegex = /www/g;
  const comRegex = /.com/g;
  const httpType = httpRegex.test(string);
  const wwwType = wwwRegex.test(string);
  const comIndices = getMatchedIndices(comRegex, string);
  if ((httpType || wwwType) && comIndices.length) {
    // Reset these regex indices because `comRegex` throws it off at its completion. 
    httpRegex.lastIndex = 0;
    wwwRegex.lastIndex = 0;
    const httpIndices = httpType ? 
      getMatchedIndices(httpRegex, string) : getMatchedIndices(wwwRegex, string);
    if (httpIndices.length === comIndices.length) {
      const result = [];
      let noLinkString = string.substring(0, httpIndices[0] || string.length);
      result.push(<Text key={noLinkString} style={baseStyles}>{ noLinkString }</Text>);
      for (let i = 0; i < httpIndices.length; i += 1) {
        const linkString = string.substring(httpIndices[i], comIndices[i] + 4);
        result.push(
          <Text
            key={linkString}
            style={[baseStyles, linkStyles]}
            onPress={openLink ? () => openLink(linkString) : () => Linking.openURL(linkString)}
          >
            { linkString }
          </Text>
        );
        noLinkString = string.substring(comIndices[i] + 4, httpIndices[i + 1] || string.length);
        if (noLinkString) {
          result.push(
            <Text key={noLinkString} style={baseStyles}>
              { noLinkString }
            </Text>
          );
        }
      }
      // Make sure the parent `<View>` container has a style of `flexWrap: 'wrap'`
      return result;
    }
  }
  return <Text style={baseStyles}>{ string }</Text>;
}

function getMatchedIndices(regex, text) {
  const result = [];
  let match;
  do {
    match = regex.exec(text);
    if (match) result.push(match.index);
  } while (match);
  return result;
}