react-native/website/versioned_docs/0.49/webview.md

---
id: version-0.49-webview
title: webview
original_id: webview
---
<a id="content"></a><h1><a class="anchor" name="webview"></a>WebView <a class="hash-link" href="docs/webview.html#webview">#</a></h1><div><div><p><code>WebView</code> renders web content in a native view.</p><div class="prism language-javascript"><span class="token keyword">import</span> React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'react'</span><span class="token punctuation">;</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> WebView <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'react-native'</span><span class="token punctuation">;</span>

<span class="token keyword">class</span> <span class="token class-name">MyWeb</span> <span class="token keyword">extends</span> <span class="token class-name">Component</span> <span class="token punctuation">{</span>
  <span class="token function">render</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> <span class="token punctuation">(</span>
      <span class="token operator">&lt;</span>WebView
        source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>uri<span class="token punctuation">:</span> <span class="token string">'https://github.com/facebook/react-native'</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
        style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>marginTop<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
      <span class="token operator">/</span><span class="token operator">&gt;</span>
    <span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span></div><p>You can use this component to navigate back and forth in the web view's
history and configure various properties for the web content.</p></div><h3><a class="anchor" name="props"></a>Props <a class="hash-link" href="docs/webview.html#props">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="viewproptypes"></a><a href="docs/viewproptypes.html#props">ViewPropTypes props...</a> <a class="hash-link" href="docs/webview.html#viewproptypes">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="automaticallyadjustcontentinsets"></a>automaticallyAdjustContentInsets?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#automaticallyadjustcontentinsets">#</a></h4><div><p>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 <code>true</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="contentinset"></a>contentInset?: <span class="propType">{top: number, left: number, bottom: number, right: number}</span> <a class="hash-link" href="docs/webview.html#contentinset">#</a></h4><div><p>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}.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="html"></a>html?: <span class="propType">string</span> <a class="hash-link" href="docs/webview.html#html">#</a></h4><div class="deprecated"><div class="deprecatedTitle"><img class="deprecatedIcon" src="img/Warning.png"><span>Deprecated</span></div><div class="deprecatedMessage"><div><p>Use the <code>source</code> prop instead.</p></div></div></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="injectjavascript"></a>injectJavaScript?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#injectjavascript">#</a></h4><div><p>Function that accepts a string that will be passed to the WebView and
executed immediately as JavaScript.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="injectedjavascript"></a>injectedJavaScript?: <span class="propType">string</span> <a class="hash-link" href="docs/webview.html#injectedjavascript">#</a></h4><div><p>Set this to provide JavaScript that will be injected into the web page
when the view loads.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="mediaplaybackrequiresuseraction"></a>mediaPlaybackRequiresUserAction?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#mediaplaybackrequiresuseraction">#</a></h4><div><p>Boolean that determines whether HTML5 audio and video requires the user
to tap them before they start playing. The default value is <code>true</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onerror"></a>onError?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onerror">#</a></h4><div><p>Function that is invoked when the <code>WebView</code> load fails.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onload"></a>onLoad?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onload">#</a></h4><div><p>Function that is invoked when the <code>WebView</code> has finished loading.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onloadend"></a>onLoadEnd?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onloadend">#</a></h4><div><p>Function that is invoked when the <code>WebView</code> load succeeds or fails.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onloadstart"></a>onLoadStart?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onloadstart">#</a></h4><div><p>Function that is invoked when the <code>WebView</code> starts loading.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onmessage"></a>onMessage?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onmessage">#</a></h4><div><p>A function that is invoked when the webview calls <code>window.postMessage</code>.
Setting this property will inject a <code>postMessage</code> global into your
webview, but will still call pre-existing values of <code>postMessage</code>.</p><p><code>window.postMessage</code> accepts one argument, <code>data</code>, which will be
available on the event object, <code>event.nativeEvent.data</code>. <code>data</code>
must be a string.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onnavigationstatechange"></a>onNavigationStateChange?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onnavigationstatechange">#</a></h4><div><p>Function that is invoked when the <code>WebView</code> loading starts or ends.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="rendererror"></a>renderError?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#rendererror">#</a></h4><div><p>Function that returns a view to show if there's an error.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="renderloading"></a>renderLoading?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#renderloading">#</a></h4><div><p>Function that returns a loading indicator.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scalespagetofit"></a>scalesPageToFit?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#scalespagetofit">#</a></h4><div><p>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 <code>true</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="source"></a>source?: <span class="propType"><span><span><span>{<span><span><span>uri: string</span>, </span><span><span>method: string</span>, </span><span><span>headers: object</span>, </span><span>body: string</span></span>}</span>, </span><span><span>{<span><span><span>html: string</span>, </span><span>baseUrl: string</span></span>}</span>, </span>number</span></span> <a class="hash-link" href="docs/webview.html#source">#</a></h4><div><p>Loads static html or a uri (with optional headers) in the WebView.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="startinloadingstate"></a>startInLoadingState?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#startinloadingstate">#</a></h4><div><p>Boolean value that forces the <code>WebView</code> to show the loading view
on the first load.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="style"></a>style?: <span class="propType">ViewPropTypes.style</span> <a class="hash-link" href="docs/webview.html#style">#</a></h4><div><p>The style to apply to the <code>WebView</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="url"></a>url?: <span class="propType">string</span> <a class="hash-link" href="docs/webview.html#url">#</a></h4><div class="deprecated"><div class="deprecatedTitle"><img class="deprecatedIcon" src="img/Warning.png"><span>Deprecated</span></div><div class="deprecatedMessage"><div><p>Use the <code>source</code> prop instead.</p></div></div></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="domstorageenabled"></a><span class="platform">android</span>domStorageEnabled?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#domstorageenabled">#</a></h4><div><p>Boolean value to control whether DOM Storage is enabled. Used only in
Android.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="javascriptenabled"></a><span class="platform">android</span>javaScriptEnabled?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#javascriptenabled">#</a></h4><div><p>Boolean value to enable JavaScript in the <code>WebView</code>. Used on Android only
as JavaScript is enabled by default on iOS. The default value is <code>true</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="mixedcontentmode"></a><span class="platform">android</span>mixedContentMode?: <span class="propType">enum('never', 'always', 'compatibility')</span> <a class="hash-link" href="docs/webview.html#mixedcontentmode">#</a></h4><div><p>Specifies the mixed content mode. i.e WebView will allow a secure origin to load content from any other origin.</p><p>Possible values for <code>mixedContentMode</code> are:</p><ul><li><code>'never'</code> (default) - WebView will not allow a secure origin to load content from an insecure origin.</li><li><code>'always'</code> - WebView will allow a secure origin to load content from any other origin, even if that origin is insecure.</li><li><code>'compatibility'</code> -  WebView will attempt to be compatible with the approach of a modern web browser with regard to mixed content.</li></ul></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="thirdpartycookiesenabled"></a><span class="platform">android</span>thirdPartyCookiesEnabled?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#thirdpartycookiesenabled">#</a></h4><div><p>Boolean value to enable third party cookies in the <code>WebView</code>. 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 <code>true</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="useragent"></a><span class="platform">android</span>userAgent?: <span class="propType">string</span> <a class="hash-link" href="docs/webview.html#useragent">#</a></h4><div><p>Sets the user-agent for the <code>WebView</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="allowsinlinemediaplayback"></a><span class="platform">ios</span>allowsInlineMediaPlayback?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#allowsinlinemediaplayback">#</a></h4><div><p>Boolean that determines whether HTML5 videos play inline or use the
native full-screen controller. The default value is <code>false</code>.</p><p><strong>NOTE</strong> : In order for video to play inline, not only does this
property need to be set to <code>true</code>, but the video element in the HTML
document must also include the <code>webkit-playsinline</code> attribute.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="bounces"></a><span class="platform">ios</span>bounces?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#bounces">#</a></h4><div><p>Boolean value that determines whether the web view bounces
when it reaches the edge of the content. The default value is <code>true</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="datadetectortypes"></a><span class="platform">ios</span>dataDetectorTypes?: <span class="propType"><span><span>enum('phoneNumber', 'link', 'address', 'calendarEvent', 'none', 'all'), </span><span>[enum('phoneNumber', 'link', 'address', 'calendarEvent', 'none', 'all')]</span></span></span> <a class="hash-link" href="docs/webview.html#datadetectortypes">#</a></h4><div><p>Determines the types of data converted to clickable URLs in the web view’s content.
By default only phone numbers are detected.</p><p>You can provide one type or an array of many types.</p><p>Possible values for <code>dataDetectorTypes</code> are:</p><ul><li><code>'phoneNumber'</code></li><li><code>'link'</code></li><li><code>'address'</code></li><li><code>'calendarEvent'</code></li><li><code>'none'</code></li><li><code>'all'</code></li></ul></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="decelerationrate"></a><span class="platform">ios</span>decelerationRate?: <span class="propType">ScrollView.propTypes.decelerationRate</span> <a class="hash-link" href="docs/webview.html#decelerationrate">#</a></h4><div><p>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 <code>"normal"</code> and <code>"fast"</code> which match the underlying iOS
settings for <code>UIScrollViewDecelerationRateNormal</code> and
<code>UIScrollViewDecelerationRateFast</code> respectively:</p><ul><li>normal: 0.998</li><li>fast: 0.99 (the default for iOS web view)</li></ul></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onshouldstartloadwithrequest"></a><span class="platform">ios</span>onShouldStartLoadWithRequest?: <span class="propType">function</span> <a class="hash-link" href="docs/webview.html#onshouldstartloadwithrequest">#</a></h4><div><p>Function that allows custom handling of any web view requests. Return
<code>true</code> from the function to continue loading the request and <code>false</code>
to stop loading.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scrollenabled"></a><span class="platform">ios</span>scrollEnabled?: <span class="propType">bool</span> <a class="hash-link" href="docs/webview.html#scrollenabled">#</a></h4><div><p>Boolean value that determines whether scrolling is enabled in the
<code>WebView</code>. The default value is <code>true</code>.</p></div></div></div></div><p class="edit-page-block"><a target="_blank" href="https://github.com/facebook/react-native/blob/master/Libraries/Components/WebView/WebView.ios.js">Improve this page</a> by sending a pull request!</p><div class="docs-prevnext"><a class="docs-prev" href="docs/virtualizedlist.html#content">← Prev</a><a class="docs-next" href="docs/accessibilityinfo.html#content">Next →</a></div>