An auto height webview for React Native, or even auto width for inline html.
Cause of changes to lifecycle methods in React 16.3.0 (https://reactjs.org/blog/2018/03/27/update-on-async-rendering.html), please install react-native-autoheight-webview 0.6.1 for the project with 0.47 <= rn < 0.55
Cause of removing unused createJSModules calls in React Naitve 0.47 (https://github.com/facebook/react-native/releases/tag/v0.47.2), please install react-native-autoheight-webview 0.3.1 for the project with 0.44 <= rn < 0.47.
Cause of moving View.propTypes to ViewPropTypes in React Naitve 0.44 (https://github.com/facebook/react-native/releases/tag/v0.44.3) and PropTypes has been moved to a separate package in React 16 (https://facebook.github.io/react/blog/2017/04/07/react-v15.5.0.html#migrating-from-react.proptypes), please install react-native-autoheight-webview 0.2.3 for the project with rn < 0.44.
npm install react-native-autoheight-webview --save (rn >= 0.56)
npm install react-native-autoheight-webview@0.6.1 --save (0.47 <= rn < 0.56)
npm install react-native-autoheight-webview@0.3.1 --save (0.44 <= rn < 0.47)
npm install react-native-autoheight-webview@0.2.3 --save (rn < 0.44)
react-native link react-native-autoheight-webview
import AutoHeightWebView from 'react-native-autoheight-webview';
import AutoHeightWebView from 'react-native-autoheight-webview';
<AutoHeightWebView
onMessage={e => console.log(e)},
// either height or width updated will trigger this
onSizeUpdated={({size => console.log(size.height)})},
// set scrollEnabled to true may cause some layout issues
scrollEnabled={true},
// if page contains iframe on iOS, use a specific script for it
hasIframe={true}
/*
if set to false may cause some layout issues (width of container not fit for screen) on Android
if set to true may cause some layout issues (smaller font size) on iOS
*/
scalesPageToFit={Platform.OS === 'Android' ? true : false}
// offset of rn webview margin
heightOffset={5}
// default width is the width of screen
// if there are some text selection issues on iOS, the width should be reduced more than 15 and the marginTop should be added more than 35
style={{ width: Dimensions.get('window').width - 15, marginTop: 35 }}
// enable animation by default
enableAnimation={true},
// only works on enable animation
animationDuration={255},
// only on Android for animating size
animationEasing={Easing.ease()},
// or uri
source={{ html: `<p style="font-weight: 400;font-style: normal;font-size: 21px;line-height: 1.58;letter-spacing: -.003em;">Tags are great for describing the essence of your story in a single word or phrase, but stories are rarely about a single thing. <span style="background-color: transparent !important;background-image: linear-gradient(to bottom, rgba(146, 249, 190, 1), rgba(146, 249, 190, 1));">If I pen a story about moving across the country to start a new job in a car with my husband, two cats, a dog, and a tarantula, I wouldn’t only tag the piece with “moving”. I’d also use the tags “pets”, “marriage”, “career change”, and “travel tips”.</span></p>` }}
// 'web/' by default on iOS, and 'file:///android_asset/web/' on Android, and baseUrl not work in android 4.3 or below version
baseUrl: 'webAssets/',
// add baseUrl/files... to project root
/*
use local or remote files
local files only works on enable baseUrl on Android,
to add local file on Android: rnproject/android/app/src/main/assets/web/,
to add local file on iOS: open iOS project with Xcode,
add new group named web (with folder) under your project folder, then drag your files into this folder
*/
files={[{
href: 'cssfileaddress',
type: 'text/css',
rel: 'stylesheet'
}]}
customScript={`document.body.style.background = 'lightyellow';`}
// rn WebView callbacks
onError={() => console.log('on error')}
onLoad={() => console.log('on load')}
onLoadStart={() => console.log('on load start')}
onLoadEnd={() => console.log('on load end')}
onNavigationStateChange={() => console.log('navigation state changed')}
// only on iOS
onShouldStartLoadWithRequest={result => {
console.log(result)
return true;
}}
// add custom CSS to the page's <head>
customStyle={`
* {
font-family: 'Times New Roman';
}
p {
font-size: 16px;
}
`}
/>You may have to copy autoHeightWebView, android, node_modules folders to 'demo/node_modules/react-native-autoheight-webview/', cause of installing a local package with npm will create symlink, but there is no supporting of React Native to symlink (facebook/watchman#105).