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<!DOCTYPE html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><title>Image – React Native | A framework for building native apps using React</title><meta name="viewport" content="width=device-width"><meta property="og:title" content="Image – React Native | A framework for building native apps using React"><meta property="og:type" content="website"><meta property="og:url" content="http://facebook.github.io/react-native/index.html"><meta property="og:image" content="http://facebook.github.io/react-native/img/opengraph.png?2"><meta property="og:description" content="A framework for building native apps using React"><link rel="shortcut icon" href="/react-native/img/favicon.png?2"><link rel="stylesheet" href="/react-native/css/react-native.css"><script type="text/javascript" src="//use.typekit.net/vqa1hcx.js"></script><script type="text/javascript">try{Typekit.load();}catch(e){}</script></head><body><div class="container"><div class="nav-main"><div class="wrap"><a class="nav-home" href="/react-native/"><img src="/react-native/img/header_logo.png">React Native</a><div class="nav-site-wrapper"><ul class="nav-site nav-site-internal"><li><a href="/react-native/docs/getting-started.html" class="active">Docs</a></li><li><a href="/react-native/support.html" class="">Support</a></li><li><a href="https://github.com/facebook/react-native/releases" class="">Releases</a></li><li><a href="http://reactnative.cc" class="">Newsletter</a></li><li><a href="/react-native/showcase.html" class="">Showcase</a></li></ul><ul class="nav-site nav-site-external"><li><a href="https://github.com/facebook/react-native" class="">GitHub</a></li><li><a href="http://facebook.github.io/react" class="">React</a></li></ul></div></div></div><section class="content wrap documentationContent"><div class="nav-docs"><div class="nav-docs-section"><h3>Quick Start</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/getting-started.html#content">Getting Started</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/android-setup.html#content">Android Setup</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/tutorial.html#content">Tutorial</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/videos.html#content">Videos</a></li></ul></div><div class="nav-docs-section"><h3>Guides</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/style.html#content">Style</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/gesture-responder-system.html#content">Gesture Responder System</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/animations.html#content">Animations</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/accessibility.html#content">Accessibility</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/native-modules-ios.html#content">Native Modules (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/native-modules-android.html#content">Native Modules (Android)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/native-components-ios.html#content">Native UI Components (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/native-components-android.html#content">Native UI Components (Android)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/direct-manipulation.html#content">Direct Manipulation</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/linking-libraries-ios.html#content">Linking Libraries (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/debugging.html#content">Debugging</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/testing.html#content">Testing</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/running-on-device-ios.html#content">Running On Device (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/running-on-device-android.html#content">Running On Device (Android)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/embedded-app-ios.html#content">Integrating with Existing Apps (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/javascript-environment.html#content">JavaScript Environment</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/navigator-comparison.html#content">Navigator Comparison</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/known-issues.html#content">Known Issues</a></li></ul></div><div class="nav-docs-section"><h3>components</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/activityindicatorios.html#content">ActivityIndicatorIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/datepickerios.html#content">DatePickerIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/drawerlayoutandroid.html#content">DrawerLayoutAndroid</a></li><li><a style="margin-left:0;" class="active" href="/react-native/docs/image.html#content">Image</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/listview.html#content">ListView</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/mapview.html#content">MapView</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/navigator.html#content">Navigator</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/modal.html#content">Modal</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/navigatorios.html#content">NavigatorIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pickerios.html#content">PickerIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/progressbarandroid.html#content">ProgressBarAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/progressviewios.html#content">ProgressViewIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/scrollview.html#content">ScrollView</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/segmentedcontrolios.html#content">SegmentedControlIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/sliderios.html#content">SliderIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/switchandroid.html#content">SwitchAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/switchios.html#content">SwitchIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/tabbarios.html#content">TabBarIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/tabbarios-item.html#content">TabBarIOS.Item</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/text.html#content">Text</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/textinput.html#content">TextInput</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/toolbarandroid.html#content">ToolbarAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchablehighlight.html#content">TouchableHighlight</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchablenativefeedback.html#content">TouchableNativeFeedback</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchableopacity.html#content">TouchableOpacity</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchablewithoutfeedback.html#content">TouchableWithoutFeedback</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/view.html#content">View</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/webview.html#content">WebView</a></li></ul></div><div class="nav-docs-section"><h3>apis</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/actionsheetios.html#content">ActionSheetIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/alertios.html#content">AlertIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/animated.html#content">Animated</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/appregistry.html#content">AppRegistry</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/appstateios.html#content">AppStateIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/asyncstorage.html#content">AsyncStorage</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/backandroid.html#content">BackAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/cameraroll.html#content">CameraRoll</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/interactionmanager.html#content">InteractionManager</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/layoutanimation.html#content">LayoutAnimation</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/linkingios.html#content">LinkingIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/netinfo.html#content">NetInfo</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/panresponder.html#content">PanResponder</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pixelratio.html#content">PixelRatio</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pushnotificationios.html#content">PushNotificationIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/statusbarios.html#content">StatusBarIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/stylesheet.html#content">StyleSheet</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/toastandroid.html#content">ToastAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/vibrationios.html#content">VibrationIOS</a></li></ul></div><div class="nav-docs-section"><h3>Polyfills</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/flexbox.html#content">Flexbox</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/geolocation.html#content">Geolocation</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/network.html#content">Network</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/timers.html#content">Timers</a></li></ul></div></div><div class="inner-content"><a id="content"></a><h1>Image</h1><div><div><p>A React component for displaying different types of images,
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including network images, static resources, temporary local images, and
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images from local disk, such as the camera roll.</p><p>Example usage:</p><div class="prism language-javascript">renderImages<span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">(</span>
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<View<span class="token operator">></span>
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<Image
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style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>icon<span class="token punctuation">}</span>
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source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!myIcon'</span><span class="token punctuation">)</span><span class="token punctuation">}</span>
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<span class="token operator">/</span><span class="token operator">></span>
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<Image
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style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>logo<span class="token punctuation">}</span>
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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">'http://facebook.github.io/react/img/logo_og.png'</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
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<span class="token operator">/</span><span class="token operator">></span>
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<<span class="token operator">/</span>View<span class="token operator">></span>
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span></div></div><h3><a class="anchor" name="props"></a><a class="edit-github" href="https://github.com/facebook/react-native/blob/master/Libraries/Image/Image.ios.js">Edit on GitHub</a>Props <a class="hash-link" href="#props">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="onlayout"></a>onLayout <span class="propType">function</span> <a class="hash-link" href="#onlayout">#</a></h4><div><p>Invoked on mount and layout changes with
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<code>{nativeEvent: {layout: {x, y, width, height}}}</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="resizemode"></a>resizeMode <span class="propType">enum('cover', 'contain', 'stretch')</span> <a class="hash-link" href="#resizemode">#</a></h4><div><p>Determines how to resize the image when the frame doesn't match the raw
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image dimensions.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="source"></a>source <span class="propType">{uri: string}, number</span> <a class="hash-link" href="#source">#</a></h4><div><p><code>uri</code> is a string representing the resource identifier for the image, which
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could be an http address, a local file path, or the name of a static image
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resource (which should be wrapped in the <code>require('image!name')</code> function).</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="style"></a>style <span class="propType">style</span> <a class="hash-link" href="#style">#</a></h4><div class="compactProps"><div class="prop"><h6 class="propTitle"><a href="flexbox.html#proptypes">Flexbox...</a></h6></div><div class="prop"><h6 class="propTitle"><a href="transforms.html#proptypes">Transforms...</a></h6></div><div class="prop"><h6 class="propTitle">resizeMode <span class="propType">Object.keys(ImageResizeMode)</span></h6></div><div class="prop"><h6 class="propTitle">backgroundColor <span class="propType">string</span></h6></div><div class="prop"><h6 class="propTitle">borderColor <span class="propType">string</span></h6></div><div class="prop"><h6 class="propTitle">borderWidth <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderRadius <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">overflow <span class="propType">enum('visible', 'hidden')</span></h6></div><div class="prop"><h6 class="propTitle">tintColor <span class="propType">string</span></h6></div><div class="prop"><h6 class="propTitle">opacity <span class="propType">number</span></h6></div></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="testid"></a>testID <span class="propType">string</span> <a class="hash-link" href="#testid">#</a></h4><div><p>A unique identifier for this element to be used in UI Automation
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testing scripts.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessibilitylabel"></a><span class="platform">ios</span>accessibilityLabel <span class="propType">string</span> <a class="hash-link" href="#accessibilitylabel">#</a></h4><div><p>The text that's read by the screen reader when the user interacts with
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the image.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessible"></a><span class="platform">ios</span>accessible <span class="propType">bool</span> <a class="hash-link" href="#accessible">#</a></h4><div><p>When true, indicates the image is an accessibility element.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="capinsets"></a><span class="platform">ios</span>capInsets <span class="propType">{top: number, left: number, bottom: number, right: number}</span> <a class="hash-link" href="#capinsets">#</a></h4><div><p>When the image is resized, the corners of the size specified
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by capInsets will stay a fixed size, but the center content and borders
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of the image will be stretched. This is useful for creating resizable
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rounded buttons, shadows, and other resizable assets. More info on
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<a href="https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIImage_Class/index.html#//apple_ref/occ/instm/UIImage/resizableImageWithCapInsets" target="_blank">Apple documentation</a></p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="defaultsource"></a><span class="platform">ios</span>defaultSource <span class="propType">{uri: string}</span> <a class="hash-link" href="#defaultsource">#</a></h4><div><p>A static image to display while downloading the final image off the
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network.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onerror"></a><span class="platform">ios</span>onError <span class="propType">function</span> <a class="hash-link" href="#onerror">#</a></h4><div><p>Invoked on load error with <code>{nativeEvent: {error}}</code></p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onload"></a><span class="platform">ios</span>onLoad <span class="propType">function</span> <a class="hash-link" href="#onload">#</a></h4><div><p>Invoked when load completes successfully</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onloadend"></a><span class="platform">ios</span>onLoadEnd <span class="propType">function</span> <a class="hash-link" href="#onloadend">#</a></h4><div><p>Invoked when load either succeeds or fails</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onloadstart"></a><span class="platform">ios</span>onLoadStart <span class="propType">function</span> <a class="hash-link" href="#onloadstart">#</a></h4><div><p>Invoked on load start</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onprogress"></a><span class="platform">ios</span>onProgress <span class="propType">function</span> <a class="hash-link" href="#onprogress">#</a></h4><div><p>Invoked on download progress with <code>{nativeEvent: {loaded, total}}</code></p></div></div></div></div><div><h3><a class="anchor" name="description"></a><a class="edit-github" href="https://github.com/facebook/react-native/blob/master/docs/Image.md">Edit on GitHub</a>Description <a class="hash-link" href="#description">#</a></h3><div><h2><a class="anchor" name="static-resources"></a>Static Resources <a class="hash-link" href="#static-resources">#</a></h2><p>Over the course of a project, it is not uncommon to add and remove many images and accidentally end up shipping images you are no longer using in the app. In order to fight this, we need to find a way to know statically which images are being used in the app. To do that, we introduced a marker on require. The only allowed way to refer to an image in the bundle is to literally write <code>require('image!name-of-the-asset')</code> in the source.</p><div class="prism language-javascript"><span class="token comment" spellcheck="true">// GOOD
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</span><Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!my-icon'</span><span class="token punctuation">)</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<span class="token comment" spellcheck="true">
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// BAD
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</span><span class="token keyword">var</span> icon <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">.</span>props<span class="token punctuation">.</span>active <span class="token operator">?</span> <span class="token string">'my-icon-active'</span> <span class="token punctuation">:</span> <span class="token string">'my-icon-inactive'</span><span class="token punctuation">;</span>
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<Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!'</span> <span class="token operator">+</span> icon<span class="token punctuation">)</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<span class="token comment" spellcheck="true">
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// GOOD
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</span><span class="token keyword">var</span> icon <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">.</span>props<span class="token punctuation">.</span>active <span class="token operator">?</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!my-icon-active'</span><span class="token punctuation">)</span> <span class="token punctuation">:</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!my-icon-inactive'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<Image source<span class="token operator">=</span><span class="token punctuation">{</span>icon<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span></div><p>When your entire codebase respects this convention, you're able to do interesting things like automatically packaging the assets that are being used in your app. Note that in the current form, nothing is enforced, but it will be in the future.</p><h3><a class="anchor" name="adding-static-resources-to-your-ios-app-using-images-xcassets"></a>Adding Static Resources to your iOS App using Images.xcassets <a class="hash-link" href="#adding-static-resources-to-your-ios-app-using-images-xcassets">#</a></h3><p><img src="/react-native/img/StaticImageAssets.png" alt=""></p><blockquote><p><strong>NOTE</strong>: App build required for new resources</p><p>Any time you add a new resource to <code>Images.xcassets</code> you will need to re-build your app through Xcode before you can use it - a reload from within the simulator is not enough.</p></blockquote><p><em>This process is currently being improved, a much better workflow will be available shortly.</em></p><h3><a class="anchor" name="adding-static-resources-to-your-android-app"></a>Adding Static Resources to your Android app <a class="hash-link" href="#adding-static-resources-to-your-android-app">#</a></h3><p>Add your images as <a href="http://developer.android.com/guide/topics/resources/drawable-resource.html#Bitmap" target="_blank">bitmap drawables</a> to the android project (<code><yourapp>/android/app/src/main/res</code>). To provide different resolutions of your assets, check out <a href="http://developer.android.com/guide/practices/screens_support.html#qualifiers" target="_blank">using configuration qualifiers</a>. Normally, you will want to put your assets in the following directories (create them under <code>res</code> if they don't exist):</p><ul><li><code>drawable-mdpi</code> (1x)</li><li><code>drawable-hdpi</code> (1.5x)</li><li><code>drawable-xhdpi</code> (2x)</li><li><code>drawable-xxhdpi</code> (3x)</li></ul><p>If you're missing a resolution for your asset, Android will take the next best thing and resize it for you.</p><blockquote><p><strong>NOTE</strong>: App build required for new resources</p><p>Any time you add a new resource to your drawables you will need to re-build your app by running <code>react-native run-android</code> before you can use it - reloading the JS is not enough.</p></blockquote><p><em>This process is currently being improved, a much better workflow will be available shortly.</em></p><h2><a class="anchor" name="network-resources"></a>Network Resources <a class="hash-link" href="#network-resources">#</a></h2><p>Many of the images you will display in your app will not be available at compile time, or you will want to load some dynamically to keep the binary size down. Unlike with static resources, <em>you will need to manually specify the dimensions of your image.</em></p><div class="prism language-javascript"><span class="token comment" spellcheck="true">// GOOD
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</span><Image 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://facebook.github.io/react/img/logo_og.png'</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
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style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">400</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">400</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<span class="token comment" spellcheck="true">
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// BAD
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</span><Image 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://facebook.github.io/react/img/logo_og.png'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span></div><h2><a class="anchor" name="local-filesystem-resources"></a>Local Filesystem Resources <a class="hash-link" href="#local-filesystem-resources">#</a></h2><p>See <a href="/react-native/docs/cameraroll.html" target="">CameraRoll</a> for an example of
|
||
using local resources that are outside of <code>Images.xcassets</code>.</p><h3><a class="anchor" name="best-camera-roll-image"></a>Best Camera Roll Image <a class="hash-link" href="#best-camera-roll-image">#</a></h3><p>iOS saves multiple sizes for the same image in your Camera Roll, it is very important to pick the one that's as close as possible for performance reasons. You wouldn't want to use the full quality 3264x2448 image as source when displaying a 200x200 thumbnail. If there's an exact match, React Native will pick it, otherwise it's going to use the first one that's at least 50% bigger in order to avoid blur when resizing from a close size. All of this is done by default so you don't have to worry about writing the tedious (and error prone) code to do it yourself.</p><h2><a class="anchor" name="why-not-automatically-size-everything"></a>Why Not Automatically Size Everything? <a class="hash-link" href="#why-not-automatically-size-everything">#</a></h2><p><em>In the browser</em> if you don't give a size to an image, the browser is going to render a 0x0 element, download the image, and then render the image based with the correct size. The big issue with this behavior is that your UI is going to jump all around as images load, this makes for a very bad user experience.</p><p><em>In React Native</em> this behavior is intentionally not implemented. It is more work for the developer to know the dimensions (or aspect ratio) of the remote image in advance, but we believe that it leads to a better user experience. Static images loaded from the app bundle via the <code>require('image!x')</code> syntax <em>can be automatically sized</em> because their dimensions are available immediately at the time of mounting.</p><p>For example, the result of <code>require('image!logo')</code> from the above screenshot:</p><div class="prism language-javascript"><span class="token punctuation">{</span><span class="token string">"__packager_asset"</span><span class="token punctuation">:</span><span class="token boolean">true</span><span class="token punctuation">,</span><span class="token string">"isStatic"</span><span class="token punctuation">:</span><span class="token boolean">true</span><span class="token punctuation">,</span><span class="token string">"path"</span><span class="token punctuation">:</span><span class="token string">"/Users/react/HelloWorld/iOS/Images.xcassets/react.imageset/logo.png"</span><span class="token punctuation">,</span><span class="token string">"uri"</span><span class="token punctuation">:</span><span class="token string">"logo"</span><span class="token punctuation">,</span><span class="token string">"width"</span><span class="token punctuation">:</span><span class="token number">591</span><span class="token punctuation">,</span><span class="token string">"height"</span><span class="token punctuation">:</span><span class="token number">573</span><span class="token punctuation">}</span></div><h2><a class="anchor" name="source-as-an-object"></a>Source as an object <a class="hash-link" href="#source-as-an-object">#</a></h2><p>In React Native, one interesting decision is that the <code>src</code> attribute is named <code>source</code> and doesn't take a string but an object with an <code>uri</code> attribute.</p><div class="prism language-javascript"><Image 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">'something.jpg'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span></div><p>On the infrastructure side, the reason is that it allows us to attach metadata to this object. For example if you are using <code>require('image!icon')</code>, then we add an <code>isStatic</code> attribute to flag it as a local file (don't rely on this fact, it's likely to change in the future!). This is also future proofing, for example we may want to support sprites at some point, instead of outputting <code>{uri: ...}</code>, we can output <code>{uri: ..., crop: {left: 10, top: 50, width: 20, height: 40}}</code> and transparently support spriting on all the existing call sites.</p><p>On the user side, this lets you annotate the object with useful attributes such as the dimension of the image in order to compute the size it's going to be displayed in. Feel free to use it as your data structure to store more information about your image.</p><h2><a class="anchor" name="background-image-via-nesting"></a>Background Image via Nesting <a class="hash-link" href="#background-image-via-nesting">#</a></h2><p>A common feature request from developers familiar with the web is <code>background-image</code>. To handle this use case, simply create a normal <code><Image></code> component and add whatever children to it you would like to layer on top of it.</p><div class="prism language-javascript"><span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||
<Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Text<span class="token operator">></span>Inside<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>Image<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span></div><h2><a class="anchor" name="off-thread-decoding"></a>Off-thread Decoding <a class="hash-link" href="#off-thread-decoding">#</a></h2><p>Image decoding can take more than a frame-worth of time. This is one of the major source of frame drops on the web because decoding is done in the main thread. In React Native, image decoding is done in a different thread. In practice, you already need to handle the case when the image is not downloaded yet, so displaying the placeholder for a few more frames while it is decoding does not require any code change.</p></div></div><div><h3><a class="anchor" name="examples"></a><a class="edit-github" href="https://github.com/facebook/react-native/blob/master/Examples/UIExplorer/ImageExample.js">Edit on GitHub</a>Examples <a class="hash-link" href="#examples">#</a></h3><div class="prism language-javascript"><span class="token string">'use strict'</span><span class="token punctuation">;</span>
|
||
|
||
<span class="token keyword">var</span> React <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'react-native'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token keyword">var</span> <span class="token punctuation">{</span>
|
||
Image<span class="token punctuation">,</span>
|
||
StyleSheet<span class="token punctuation">,</span>
|
||
Text<span class="token punctuation">,</span>
|
||
View<span class="token punctuation">,</span>
|
||
ActivityIndicatorIOS
|
||
<span class="token punctuation">}</span> <span class="token operator">=</span> React<span class="token punctuation">;</span>
|
||
|
||
<span class="token keyword">var</span> ImageCapInsetsExample <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'./ImageCapInsetsExample'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
|
||
<span class="token keyword">var</span> NetworkImageExample <span class="token operator">=</span> React<span class="token punctuation">.</span><span class="token function">createClass<span class="token punctuation">(</span></span><span class="token punctuation">{</span>
|
||
watchID<span class="token punctuation">:</span> <span class="token punctuation">(</span><span class="token keyword">null</span><span class="token punctuation">:</span> <span class="token operator">?</span>number<span class="token punctuation">)</span><span class="token punctuation">,</span>
|
||
|
||
getInitialState<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
error<span class="token punctuation">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span>
|
||
loading<span class="token punctuation">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span>
|
||
progress<span class="token punctuation">:</span> <span class="token number">0</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">var</span> loader <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>loading <span class="token operator">?</span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>progress<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Text<span class="token operator">></span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>progress<span class="token punctuation">}</span><span class="token operator">%</span><<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<ActivityIndicatorIOS style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>marginLeft<span class="token punctuation">:</span><span class="token number">5</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span> <span class="token punctuation">:</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
|
||
<span class="token keyword">return</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>error <span class="token operator">?</span>
|
||
<Text<span class="token operator">></span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>error<span class="token punctuation">}</span><<span class="token operator">/</span>Text<span class="token operator">></span> <span class="token punctuation">:</span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>props<span class="token punctuation">.</span>source<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> <span class="token punctuation">{</span>overflow<span class="token punctuation">:</span> <span class="token string">'visible'</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
onLoadStart<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">(</span>e<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setState<span class="token punctuation">(</span></span><span class="token punctuation">{</span>loading<span class="token punctuation">:</span> <span class="token boolean">true</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">}</span>
|
||
onError<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">(</span>e<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setState<span class="token punctuation">(</span></span><span class="token punctuation">{</span>error<span class="token punctuation">:</span> e<span class="token punctuation">.</span>nativeEvent<span class="token punctuation">.</span>error<span class="token punctuation">,</span> loading<span class="token punctuation">:</span> <span class="token boolean">false</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">}</span>
|
||
onProgress<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">(</span>e<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setState<span class="token punctuation">(</span></span><span class="token punctuation">{</span>progress<span class="token punctuation">:</span> Math<span class="token punctuation">.</span><span class="token function">round<span class="token punctuation">(</span></span><span class="token number">100</span> <span class="token operator">*</span> e<span class="token punctuation">.</span>nativeEvent<span class="token punctuation">.</span>loaded <span class="token operator">/</span> e<span class="token punctuation">.</span>nativeEvent<span class="token punctuation">.</span>total<span class="token punctuation">)</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">}</span>
|
||
onLoad<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setState<span class="token punctuation">(</span></span><span class="token punctuation">{</span>loading<span class="token punctuation">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span> error<span class="token punctuation">:</span> <span class="token boolean">false</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<span class="token punctuation">{</span>loader<span class="token punctuation">}</span>
|
||
<<span class="token operator">/</span>Image<span class="token operator">></span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
|
||
exports<span class="token punctuation">.</span>displayName <span class="token operator">=</span> <span class="token punctuation">(</span>undefined<span class="token punctuation">:</span> <span class="token operator">?</span>string<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
exports<span class="token punctuation">.</span>framework <span class="token operator">=</span> <span class="token string">'React'</span><span class="token punctuation">;</span>
|
||
exports<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'<Image>'</span><span class="token punctuation">;</span>
|
||
exports<span class="token punctuation">.</span>description <span class="token operator">=</span> <span class="token string">'Base component for displaying different types of images.'</span><span class="token punctuation">;</span>
|
||
|
||
exports<span class="token punctuation">.</span>examples <span class="token operator">=</span> <span class="token punctuation">[</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Plain Network Image'</span><span class="token punctuation">,</span>
|
||
description<span class="token punctuation">:</span> <span class="token string">'If the `source` prop `uri` property is prefixed with '</span> <span class="token operator">+</span>
|
||
<span class="token string">'"http", then it will be downloaded from the network.'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<Image
|
||
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">'http://facebook.github.io/react/img/logo_og.png'</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Plain Static Image'</span><span class="token punctuation">,</span>
|
||
description<span class="token punctuation">:</span> <span class="token string">'Static assets should be required by prefixing with `image!` '</span> <span class="token operator">+</span>
|
||
<span class="token string">'and are located in the app bundle.'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_thumb_normal'</span><span class="token punctuation">)</span><span class="token punctuation">}</span> style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>icon<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_thumb_selected'</span><span class="token punctuation">)</span><span class="token punctuation">}</span> style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>icon<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_comment_normal'</span><span class="token punctuation">)</span><span class="token punctuation">}</span> style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>icon<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<Image source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_comment_highlighted'</span><span class="token punctuation">)</span><span class="token punctuation">}</span> style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>icon<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Error Handler'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<NetworkImageExample 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">'http://TYPO_ERROR_facebook.github.io/react/img/logo_og.png'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
platform<span class="token punctuation">:</span> <span class="token string">'ios'</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Image Download Progress'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<NetworkImageExample 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">'http://facebook.github.io/origami/public/images/blog-hero.jpg?r=1'</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">/</span><span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
platform<span class="token punctuation">:</span> <span class="token string">'ios'</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Border Color'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>
|
||
styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span>
|
||
styles<span class="token punctuation">.</span>background<span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>borderWidth<span class="token punctuation">:</span> <span class="token number">3</span><span class="token punctuation">,</span> borderColor<span class="token punctuation">:</span> <span class="token string">'#f099f0'</span><span class="token punctuation">}</span>
|
||
<span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
platform<span class="token punctuation">:</span> <span class="token string">'ios'</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Border Width'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>
|
||
styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span>
|
||
styles<span class="token punctuation">.</span>background<span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>borderWidth<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> borderColor<span class="token punctuation">:</span> <span class="token string">'#f099f0'</span><span class="token punctuation">}</span>
|
||
<span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
platform<span class="token punctuation">:</span> <span class="token string">'ios'</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Border Radius'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">19</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Background Color'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span> style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>
|
||
styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span>
|
||
styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>backgroundColor<span class="token punctuation">:</span> <span class="token string">'rgba(0, 0, 100, 0.25)'</span><span class="token punctuation">}</span>
|
||
<span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>backgroundColor<span class="token punctuation">:</span> <span class="token string">'red'</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>backgroundColor<span class="token punctuation">:</span> <span class="token string">'black'</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Opacity'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> <span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.8</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.6</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.4</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.2</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0</span><span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Nesting'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">60</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">60</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'transparent'</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Text style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>nestedText<span class="token punctuation">}</span><span class="token operator">></span>
|
||
React
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>Image<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">{</span>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Tint Color'</span><span class="token punctuation">,</span>
|
||
description<span class="token punctuation">:</span> <span class="token string">'The `tintColor` style prop changes all the non-alpha '</span> <span class="token operator">+</span>
|
||
<span class="token string">'pixels to the tint color.'</span><span class="token punctuation">,</span>
|
||
render<span class="token punctuation">:</span> <span class="token keyword">function</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>
|
||
<View<span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_thumb_normal'</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>styles<span class="token punctuation">.</span>icon<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#5ac8fa'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_thumb_normal'</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>styles<span class="token punctuation">.</span>icon<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#4cd964'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_thumb_normal'</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>styles<span class="token punctuation">.</span>icon<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#ff2d55'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span><span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'image!uie_thumb_normal'</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>styles<span class="token punctuation">.</span>icon<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#8e8e93'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<Text style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>sectionText<span class="token punctuation">}</span><span class="token operator">></span>
|
||
It also works <span class="token keyword">with</span> downloaded images<span class="token punctuation">:</span>
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#5ac8fa'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#4cd964'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#ff2d55'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>smallImage<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>base<span class="token punctuation">,</span> styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">,</span> <span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> tintColor<span class="token punctuation">:</span> <span class="token string">'#8e8e93'</span> <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
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<<span class="token operator">/</span>View<span class="token operator">></span>
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||
<<span class="token operator">/</span>View<span class="token operator">></span>
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">{</span>
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title<span class="token punctuation">:</span> <span class="token string">'Resize Mode'</span><span class="token punctuation">,</span>
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||
description<span class="token punctuation">:</span> <span class="token string">'The `resizeMode` style prop controls how the image is '</span> <span class="token operator">+</span>
|
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<span class="token string">'rendered within the frame.'</span><span class="token punctuation">,</span>
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||
render<span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">(</span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>horizontal<span class="token punctuation">}</span><span class="token operator">></span>
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<View<span class="token operator">></span>
|
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<Text style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>resizeModeText<span class="token punctuation">]</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Contain
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
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||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>resizeMode<span class="token punctuation">}</span>
|
||
resizeMode<span class="token operator">=</span><span class="token punctuation">{</span>Image<span class="token punctuation">.</span>resizeMode<span class="token punctuation">.</span>contain<span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
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||
<span class="token operator">/</span><span class="token operator">></span>
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||
<<span class="token operator">/</span>View<span class="token operator">></span>
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||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Text style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>resizeModeText<span class="token punctuation">]</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Cover
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>resizeMode<span class="token punctuation">}</span>
|
||
resizeMode<span class="token operator">=</span><span class="token punctuation">{</span>Image<span class="token punctuation">.</span>resizeMode<span class="token punctuation">.</span>cover<span class="token punctuation">}</span>
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>leftMargin<span class="token punctuation">}</span><span class="token operator">></span>
|
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<Text style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>resizeModeText<span class="token punctuation">]</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Stretch
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>resizeMode<span class="token punctuation">}</span>
|
||
resizeMode<span class="token operator">=</span><span class="token punctuation">{</span>Image<span class="token punctuation">.</span>resizeMode<span class="token punctuation">.</span>stretch<span class="token punctuation">}</span>
|
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source<span class="token operator">=</span><span class="token punctuation">{</span>fullImage<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><span class="token operator">></span>
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||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">{</span>
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title<span class="token punctuation">:</span> <span class="token string">'Animated GIF'</span><span class="token punctuation">,</span>
|
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render<span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
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<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
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<Image
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>gif<span class="token punctuation">}</span>
|
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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">'http://38.media.tumblr.com/9e9bd08c6e2d10561dd1fb4197df4c4e/tumblr_mfqekpMktw1rn90umo1_500.gif'</span><span class="token punctuation">}</span><span class="token punctuation">}</span>
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<span class="token operator">/</span><span class="token operator">></span>
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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platform<span class="token punctuation">:</span> <span class="token string">'ios'</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">{</span>
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title<span class="token punctuation">:</span> <span class="token string">'Cap Insets'</span><span class="token punctuation">,</span>
|
||
description<span class="token punctuation">:</span>
|
||
<span class="token string">'When the image is resized, the corners of the size specified '</span> <span class="token operator">+</span>
|
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<span class="token string">'by capInsets will stay a fixed size, but the center content and '</span> <span class="token operator">+</span>
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<span class="token string">'borders of the image will be stretched. This is useful for creating '</span> <span class="token operator">+</span>
|
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<span class="token string">'resizable rounded buttons, shadows, and other resizable assets.'</span><span class="token punctuation">,</span>
|
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render<span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <ImageCapInsetsExample <span class="token operator">/</span><span class="token operator">></span><span class="token punctuation">;</span>
|
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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platform<span class="token punctuation">:</span> <span class="token string">'ios'</span><span class="token punctuation">,</span>
|
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
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<span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
|
||
<span class="token keyword">var</span> fullImage <span class="token operator">=</span> <span class="token punctuation">{</span>uri<span class="token punctuation">:</span> <span class="token string">'http://facebook.github.io/react/img/logo_og.png'</span><span class="token punctuation">}</span><span class="token punctuation">;</span>
|
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<span class="token keyword">var</span> smallImage <span class="token operator">=</span> <span class="token punctuation">{</span>uri<span class="token punctuation">:</span> <span class="token string">'http://facebook.github.io/react/img/logo_small_2x.png'</span><span class="token punctuation">}</span><span class="token punctuation">;</span>
|
||
|
||
<span class="token keyword">var</span> styles <span class="token operator">=</span> StyleSheet<span class="token punctuation">.</span><span class="token function">create<span class="token punctuation">(</span></span><span class="token punctuation">{</span>
|
||
base<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
width<span class="token punctuation">:</span> <span class="token number">38</span><span class="token punctuation">,</span>
|
||
height<span class="token punctuation">:</span> <span class="token number">38</span><span class="token punctuation">,</span>
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||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
progress<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
flex<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
|
||
alignItems<span class="token punctuation">:</span> <span class="token string">'center'</span><span class="token punctuation">,</span>
|
||
flexDirection<span class="token punctuation">:</span> <span class="token string">'row'</span><span class="token punctuation">,</span>
|
||
width<span class="token punctuation">:</span> <span class="token number">100</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
leftMargin<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
marginLeft<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
background<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
backgroundColor<span class="token punctuation">:</span> <span class="token string">'#222222'</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
sectionText<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
marginVertical<span class="token punctuation">:</span> <span class="token number">6</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
nestedText<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
marginLeft<span class="token punctuation">:</span> <span class="token number">12</span><span class="token punctuation">,</span>
|
||
marginTop<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">,</span>
|
||
backgroundColor<span class="token punctuation">:</span> <span class="token string">'transparent'</span><span class="token punctuation">,</span>
|
||
color<span class="token punctuation">:</span> <span class="token string">'white'</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
resizeMode<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
width<span class="token punctuation">:</span> <span class="token number">90</span><span class="token punctuation">,</span>
|
||
height<span class="token punctuation">:</span> <span class="token number">60</span><span class="token punctuation">,</span>
|
||
borderWidth<span class="token punctuation">:</span> <span class="token number">0.5</span><span class="token punctuation">,</span>
|
||
borderColor<span class="token punctuation">:</span> <span class="token string">'black'</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
resizeModeText<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
fontSize<span class="token punctuation">:</span> <span class="token number">11</span><span class="token punctuation">,</span>
|
||
marginBottom<span class="token punctuation">:</span> <span class="token number">3</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
icon<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
width<span class="token punctuation">:</span> <span class="token number">15</span><span class="token punctuation">,</span>
|
||
height<span class="token punctuation">:</span> <span class="token number">15</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
horizontal<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
flexDirection<span class="token punctuation">:</span> <span class="token string">'row'</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
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gif<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
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flex<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
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height<span class="token punctuation">:</span> <span class="token number">200</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></div></div><div class="docs-prevnext"><a class="docs-next" href="listview.html#content">Next →</a></div></div></section><footer class="wrap"><div class="right">© 2015 Facebook Inc.</div></footer></div><div id="fb-root"></div><script>
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