W3cubDocs

/React Native

WebView

WebView renders web content in a native view.

import React, { Component } from 'react';
import { WebView } from 'react-native';

class MyWeb extends Component {
  render() {
    return (
      <WebView
        source={{uri: 'https://github.com/facebook/react-native'}}
        style={{marginTop: 20}}
      />
    );
  }
}

You can use this component to navigate back and forth in the web view's history and configure various properties for the web content.

Props

ViewPropTypes props...

automaticallyAdjustContentInsets?: bool

Controls whether to adjust the content inset for web views that are placed behind a navigation bar, tab bar, or toolbar. The default value is true.

contentInset?: {top: number, left: number, bottom: number, right: number}

The amount by which the web view content is inset from the edges of the scroll view. Defaults to {top: 0, left: 0, bottom: 0, right: 0}.

html?: string

Deprecated

Use the source prop instead.

injectJavaScript?: function

Function that accepts a string that will be passed to the WebView and executed immediately as JavaScript.

injectedJavaScript?: string

Set this to provide JavaScript that will be injected into the web page when the view loads.

mediaPlaybackRequiresUserAction?: bool

Boolean that determines whether HTML5 audio and video requires the user to tap them before they start playing. The default value is true.

onError?: function

Function that is invoked when the WebView load fails.

onLoad?: function

Function that is invoked when the WebView has finished loading.

onLoadEnd?: function

Function that is invoked when the WebView load succeeds or fails.

onLoadStart?: function

Function that is invoked when the WebView starts loading.

onMessage?: function

A function that is invoked when the webview calls window.postMessage. Setting this property will inject a postMessage global into your webview, but will still call pre-existing values of postMessage.

window.postMessage accepts one argument, data, which will be available on the event object, event.nativeEvent.data. data must be a string.

onNavigationStateChange?: function

Function that is invoked when the WebView loading starts or ends.

renderError?: function

Function that returns a view to show if there's an error.

renderLoading?: function

Function that returns a loading indicator.

scalesPageToFit?: bool

Boolean that controls whether the web content is scaled to fit the view and enables the user to change the scale. The default value is true.

source?: {uri: string, method: string, headers: object, body: string}, {html: string, baseUrl: string}, number

Loads static html or a uri (with optional headers) in the WebView.

startInLoadingState?: bool

Boolean value that forces the WebView to show the loading view on the first load.

style?: ViewPropTypes.style

The style to apply to the WebView.

url?: string

Deprecated

Use the source prop instead.

androiddomStorageEnabled?: bool

Boolean value to control whether DOM Storage is enabled. Used only in Android.

androidjavaScriptEnabled?: bool

Boolean value to enable JavaScript in the WebView. Used on Android only as JavaScript is enabled by default on iOS. The default value is true.

androidmixedContentMode?: enum('never', 'always', 'compatibility')

Specifies the mixed content mode. i.e WebView will allow a secure origin to load content from any other origin.

Possible values for mixedContentMode are:

  • 'never' (default) - WebView will not allow a secure origin to load content from an insecure origin.
  • 'always' - WebView will allow a secure origin to load content from any other origin, even if that origin is insecure.
  • 'compatibility' - WebView will attempt to be compatible with the approach of a modern web browser with regard to mixed content.

androidthirdPartyCookiesEnabled?: bool

Boolean value to enable third party cookies in the WebView. Used on Android Lollipop and above only as third party cookies are enabled by default on Android Kitkat and below and on iOS. The default value is true.

androiduserAgent?: string

Sets the user-agent for the WebView.

iosallowsInlineMediaPlayback?: bool

Boolean that determines whether HTML5 videos play inline or use the native full-screen controller. The default value is false.

NOTE : In order for video to play inline, not only does this property need to be set to true, but the video element in the HTML document must also include the webkit-playsinline attribute.

iosbounces?: bool

Boolean value that determines whether the web view bounces when it reaches the edge of the content. The default value is true.

iosdataDetectorTypes?: enum('phoneNumber', 'link', 'address', 'calendarEvent', 'none', 'all'), [enum('phoneNumber', 'link', 'address', 'calendarEvent', 'none', 'all')]

Determines the types of data converted to clickable URLs in the web view’s content. By default only phone numbers are detected.

You can provide one type or an array of many types.

Possible values for dataDetectorTypes are:

  • 'phoneNumber'
  • 'link'
  • 'address'
  • 'calendarEvent'
  • 'none'
  • 'all'

iosdecelerationRate?: ScrollView.propTypes.decelerationRate

A floating-point number that determines how quickly the scroll view decelerates after the user lifts their finger. You may also use the string shortcuts "normal" and "fast" which match the underlying iOS settings for UIScrollViewDecelerationRateNormal and UIScrollViewDecelerationRateFast respectively:

  • normal: 0.998
  • fast: 0.99 (the default for iOS web view)

iosonShouldStartLoadWithRequest?: function

Function that allows custom handling of any web view requests. Return true from the function to continue loading the request and false to stop loading.

iosscrollEnabled?: bool

Boolean value that determines whether scrolling is enabled in the WebView. The default value is true.

© 2015–2017 Facebook Inc.
Licensed under the Creative Commons Attribution 4.0 International Public License.
https://facebook.github.io/react-native/docs/webview.html