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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>ImageStore · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="### Methods"/><meta name="docsearch:version" content="0.56"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="ImageStore · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/index.html"/><meta property="og:description" content="### Methods"/><meta name="twitter:card" content="summary"/><link rel="shortcut icon" href="/react-native/img/favicon.png"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/react-native/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://facebook.github.io/react-native/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
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class="navItem" href="/react-native/docs/state">State</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/style">Style</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/height-and-width">Height and Width</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/flexbox">Layout with Flexbox</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/handling-text-input">Handling Text Input</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/handling-touches">Handling Touches</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/using-a-scrollview">Using a ScrollView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/using-a-listview">Using List Views</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/network">Networking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/more-resources">More Resources</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Guides</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/components-and-apis">Components and APIs</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/platform-specific-code">Platform Specific Code</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/navigation">Navigating Between Screens</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/images">Images</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/animations">Animations</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/accessibility">Accessibility</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/improvingux">Improving User Experience</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/timers">Timers</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/debugging">Debugging</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/performance">Performance</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/gesture-responder-system">Gesture Responder System</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/javascript-environment">JavaScript Environment</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/direct-manipulation">Direct Manipulation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/colors">Color Reference</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/integration-with-existing-apps">Integration with Existing Apps</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/building-for-apple-tv">Building For TV Devices</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/running-on-device">Running On Device</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/upgrading">Upgrading to new React Native versions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/troubleshooting">Troubleshooting</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/native-modules-setup">Native Modules Setup</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Guides (iOS)</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/native-modules-ios">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/native-components-ios">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/linking-libraries-ios">Linking Libraries</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/running-on-simulator-ios">Running On Simulator</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/communication-ios">Communication between native and React Native</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/app-extensions">App Extensions</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Guides (Android)</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/native-modules-android">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/native-components-android">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/headless-js-android">Headless JS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/signed-apk-android">Generating Signed APK</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/removing-default-permissions">Removing Default Permissions</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Contributing</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/contributing">How to Contribute</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/maintainers">What to Expect from Maintainers</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/building-from-source">Building React Native from source</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/testing">Testing your Changes</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/understanding-cli">Understanding the CLI</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Components</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/activityindicator">ActivityIndicator</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/button">Button</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/datepickerios">DatePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/drawerlayoutandroid">DrawerLayoutAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/flatlist">FlatList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/image">Image</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/inputaccessoryview">InputAccessoryView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/keyboardavoidingview">KeyboardAvoidingView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/listview">ListView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/maskedviewios">MaskedViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/modal">Modal</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/navigatorios">NavigatorIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/picker">Picker</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/pickerios">PickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/progressbarandroid">ProgressBarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/progressviewios">ProgressViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/refreshcontrol">RefreshControl</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/safeareaview">SafeAreaView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/scrollview">ScrollView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/sectionlist">SectionList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/segmentedcontrolios">SegmentedControlIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/slider">Slider</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/snapshotviewios">SnapshotViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/statusbar">StatusBar</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/switch">Switch</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/tabbarios">TabBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/tabbarios-item">TabBarIOS.Item</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/text">Text</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/textinput">TextInput</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/toolbarandroid">ToolbarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/touchablehighlight">TouchableHighlight</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/touchablenativefeedback">TouchableNativeFeedback</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/touchableopacity">TouchableOpacity</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/touchablewithoutfeedback">TouchableWithoutFeedback</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/view">View</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/viewpagerandroid">ViewPagerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/virtualizedlist">VirtualizedList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/webview">WebView</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">APIs</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/accessibilityinfo">AccessibilityInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/actionsheetios">ActionSheetIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/alert">Alert</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/alertios">AlertIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/animated">Animated</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/appregistry">AppRegistry</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/appstate">AppState</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/asyncstorage">AsyncStorage</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/backandroid">BackAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/backhandler">BackHandler</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/cameraroll">CameraRoll</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/clipboard">Clipboard</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/datepickerandroid">DatePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/dimensions">Dimensions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/easing">Easing</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/geolocation">Geolocation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/imageeditor">ImageEditor</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/imagepickerios">ImagePickerIOS</a></li><li class="navListItem navListItemActive"><a class="navItem" href="/react-native/docs/imagestore">ImageStore</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/image-style-props">Image Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/interactionmanager">InteractionManager</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/keyboard">Keyboard</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/layout-props">Layout Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/layoutanimation">LayoutAnimation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/linking">Linking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/listviewdatasource">ListViewDataSource</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/netinfo">NetInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/panresponder">PanResponder</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/permissionsandroid">PermissionsAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/pixelratio">PixelRatio</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/pushnotificationios">PushNotificationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/settings">Settings</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/shadow-props">Shadow Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/share">Share</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/statusbarios">StatusBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/stylesheet">StyleSheet</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/systrace">Systrace</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/text-style-props">Text Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/timepickerandroid">TimePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/toastandroid">ToastAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/transforms">Transforms</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/vibration">Vibration</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/vibrationios">VibrationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/view-style-props">View Style Props</a></li></ul></div></div></section></div><script>
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</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/imagestore.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">ImageStore</h1></header><article><div><span><h3><a class="anchor" aria-hidden="true" id="methods"></a><a href="#methods" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Methods</h3>
<ul>
<li><a href="/react-native/docs/imagestore#hasimagefortag"><code>hasImageForTag</code></a></li>
<li><a href="/react-native/docs/imagestore#removeimagefortag"><code>removeImageForTag</code></a></li>
<li><a href="/react-native/docs/imagestore#addimagefrombase64"><code>addImageFromBase64</code></a></li>
<li><a href="/react-native/docs/imagestore#getbase64fortag"><code>getBase64ForTag</code></a></li>
</ul>
<hr>
<h1><a class="anchor" aria-hidden="true" id="reference"></a><a href="#reference" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Reference</h1>
<h2><a class="anchor" aria-hidden="true" id="methods-1"></a><a href="#methods-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Methods</h2>
<h3><a class="anchor" aria-hidden="true" id="hasimagefortag"></a><a href="#hasimagefortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>hasImageForTag()</code></h3>
<pre><code class="hljs css languages- javascript"><span class="hljs-keyword">static</span> hasImageForTag(uri, callback)
</code></pre>
<p>Check if the ImageStore contains image data for the specified URI. @platform ios</p>
<hr>
<h3><a class="anchor" aria-hidden="true" id="removeimagefortag"></a><a href="#removeimagefortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>removeImageForTag()</code></h3>
<pre><code class="hljs css languages- javascript"><span class="hljs-keyword">static</span> removeImageForTag(uri)
</code></pre>
<p>Delete an image from the ImageStore. Images are stored in memory and must be manually removed when you are finished with them, otherwise they will continue to use up RAM until the app is terminated. It is safe to call <code>removeImageForTag()</code> without first calling <code>hasImageForTag()</code>, it will simply fail silently. @platform ios</p>
<hr>
<h3><a class="anchor" aria-hidden="true" id="addimagefrombase64"></a><a href="#addimagefrombase64" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>addImageFromBase64()</code></h3>
<pre><code class="hljs css languages- javascript"><span class="hljs-keyword">static</span> addImageFromBase64(base64ImageData, success, failure)
</code></pre>
<p>Stores a base64-encoded image in the ImageStore, and returns a URI that can be used to access or display the image later. Images are stored in memory only, and must be manually deleted when you are finished with them by calling <code>removeImageForTag()</code>.</p>
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. @platform ios</p>
<hr>
<h3><a class="anchor" aria-hidden="true" id="getbase64fortag"></a><a href="#getbase64fortag" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>getBase64ForTag()</code></h3>
<pre><code class="hljs css languages- javascript"><span class="hljs-keyword">static</span> getBase64ForTag(uri, success, failure)
</code></pre>
<p>Retrieves the base64-encoded data for an image in the ImageStore. If the specified URI does not match an image in the store, the failure callback will be called.</p>
<p>Note that it is very inefficient to transfer large quantities of binary data between JS and native code, so you should avoid calling this more than necessary. To display an image in the ImageStore, you can just pass the URI to an <code>&lt;Image/&gt;</code> component; there is no need to retrieve the base64 data.</p>
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