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<!DOCTYPE html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><title>CameraRoll – React Native | A framework for building native apps using React</title><meta name="viewport" content="width=device-width"><meta property="og:title" content="CameraRoll – 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"><base href="/react-native/"><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"><link rel="shortcut icon" href="img/favicon.png?2"><link rel="stylesheet" href="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=""><img src="img/header_logo.png">React Native</a><a class="nav-version" href="/react-native/versions.html">0.28</a><div class="nav-site-wrapper"><ul class="nav-site nav-site-internal"><li><a href="docs/getting-started.html" class="active" data-target=".nav-docs">Docs</a></li><li><a href="support.html" class="">Support</a></li><li><a href="showcase.html" class="">Showcase</a></li><li><a href="blog/" class="">Blog</a></li></ul><div class="algolia-search-wrapper"><input id="algolia-doc-search" type="text" placeholder="Search docs..."></div><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-viewport"><div class="nav-docs-section"><h3>Quick Start</h3><ul><li><a style="margin-left:0;" class="" href="docs/getting-started.html">Getting Started</a></li></ul></div><div class="nav-docs-section"><h3>Tutorials</h3><ul><li><a style="margin-left:0;" class="" href="docs/tutorial-core-components.html">Core Components</a></li></ul></div><div class="nav-docs-section"><h3>Sample Applications</h3><ul><li><a style="margin-left:0;" class="" href="docs/sample-application-movies.html">Movie Fetcher</a></li><li><a target="_blank" style="margin-left:0;" class="" href="http://makeitopen.com/">F8 2016 App</a></li></ul></div><div class="nav-docs-section"><h3>Community Resources</h3><ul><li><a style="margin-left:0;" class="" href="docs/videos.html">Videos</a></li><li><a target="_blank" style="margin-left:0;" class="" href="http://reactnative.cc/">Newsletter</a></li></ul></div><div class="nav-docs-section"><h3>Guides</h3><ul><li><a style="margin-left:0;" class="" href="docs/style.html">Style</a></li><li><a style="margin-left:0;" class="" href="docs/images.html">Images</a></li><li><a style="margin-left:0;" class="" href="docs/gesture-responder-system.html">Gesture Responder System</a></li><li><a style="margin-left:0;" class="" href="docs/animations.html">Animations</a></li><li><a style="margin-left:0;" class="" href="docs/accessibility.html">Accessibility</a></li><li><a style="margin-left:0;" class="" href="docs/direct-manipulation.html">Direct Manipulation</a></li><li><a style="margin-left:0;" class="" href="docs/debugging.html">Debugging</a></li><li><a style="margin-left:0;" class="" href="docs/testing.html">Testing</a></li><li><a style="margin-left:0;" class="" href="docs/javascript-environment.html">JavaScript Environment</a></li><li><a style="margin-left:0;" class="" href="docs/navigator-comparison.html">Navigator Comparison</a></li><li><a style="margin-left:0;" class="" href="docs/known-issues.html">Known Issues</a></li><li><a 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Native</a></li></ul></div><div class="nav-docs-section"><h3>Guides (Android)</h3><ul><li><a style="margin-left:0;" class="" href="docs/native-modules-android.html">Native Modules</a></li><li><a style="margin-left:0;" class="" href="docs/native-components-android.html">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="docs/running-on-device-android.html">Running On Device</a></li><li><a style="margin-left:0;" class="" href="docs/embedded-app-android.html">Integrating with Existing Apps</a></li><li><a style="margin-left:0;" class="" href="docs/signed-apk-android.html">Generating Signed APK</a></li><li><a style="margin-left:0;" class="" href="docs/android-ui-performance.html">Profiling Android UI Performance</a></li><li><a style="margin-left:0;" class="" href="docs/android-building-from-source.html">Building React Native from source</a></li></ul></div><div class="nav-docs-section"><h3>components</h3><ul><li><a style="margin-left:0;" class="" href="docs/activityindicator.html">ActivityIndicator</a></li><li><a style="margin-left:0;" class="" href="docs/datepickerios.html">DatePickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/drawerlayoutandroid.html">DrawerLayoutAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/image.html">Image</a></li><li><a style="margin-left:0;" class="" href="docs/listview.html">ListView</a></li><li><a style="margin-left:0;" class="" href="docs/mapview.html">MapView</a></li><li><a style="margin-left:0;" class="" href="docs/modal.html">Modal</a></li><li><a style="margin-left:0;" class="" href="docs/navigator.html">Navigator</a></li><li><a style="margin-left:0;" class="" href="docs/navigatorios.html">NavigatorIOS</a></li><li><a style="margin-left:0;" class="" href="docs/pickerios.html">PickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/picker.html">Picker</a></li><li><a style="margin-left:0;" class="" href="docs/progressbarandroid.html">ProgressBarAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/progressviewios.html">ProgressViewIOS</a></li><li><a style="margin-left:0;" class="" href="docs/refreshcontrol.html">RefreshControl</a></li><li><a style="margin-left:0;" class="" href="docs/scrollview.html">ScrollView</a></li><li><a style="margin-left:0;" class="" href="docs/segmentedcontrolios.html">SegmentedControlIOS</a></li><li><a style="margin-left:0;" class="" href="docs/slider.html">Slider</a></li><li><a style="margin-left:0;" class="" href="docs/sliderios.html">SliderIOS</a></li><li><a style="margin-left:0;" class="" href="docs/statusbar.html">StatusBar</a></li><li><a style="margin-left:0;" class="" href="docs/switch.html">Switch</a></li><li><a style="margin-left:0;" class="" href="docs/tabbarios.html">TabBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/tabbarios-item.html">TabBarIOS.Item</a></li><li><a style="margin-left:0;" class="" href="docs/text.html">Text</a></li><li><a style="margin-left:0;" class="" href="docs/textinput.html">TextInput</a></li><li><a style="margin-left:0;" class="" href="docs/toolbarandroid.html">ToolbarAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/touchablehighlight.html">TouchableHighlight</a></li><li><a style="margin-left:0;" class="" href="docs/touchablenativefeedback.html">TouchableNativeFeedback</a></li><li><a style="margin-left:0;" class="" href="docs/touchableopacity.html">TouchableOpacity</a></li><li><a style="margin-left:0;" class="" href="docs/touchablewithoutfeedback.html">TouchableWithoutFeedback</a></li><li><a style="margin-left:0;" class="" href="docs/view.html">View</a></li><li><a style="margin-left:0;" class="" href="docs/viewpagerandroid.html">ViewPagerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/webview.html">WebView</a></li></ul></div><div class="nav-docs-section"><h3>apis</h3><ul><li><a style="margin-left:0;" class="" href="docs/actionsheetios.html">ActionSheetIOS</a></li><li><a style="margin-left:0;" class="" href="docs/alert.html">Alert</a></li><li><a style="margin-left:0;" class="" href="docs/alertios.html">AlertIOS</a></li><li><a style="margin-left:0;" class="" href="docs/animated.html">Animated</a></li><li><a style="margin-left:0;" class="" href="docs/appregistry.html">AppRegistry</a></li><li><a style="margin-left:0;" class="" href="docs/appstate.html">AppState</a></li><li><a style="margin-left:0;" class="" href="docs/asyncstorage.html">AsyncStorage</a></li><li><a style="margin-left:0;" class="" href="docs/backandroid.html">BackAndroid</a></li><li><a style="margin-left:0;" class="active" href="docs/cameraroll.html">CameraRoll</a></li><li><a style="margin-left:0;" class="" href="docs/clipboard.html">Clipboard</a></li><li><a style="margin-left:0;" class="" href="docs/datepickerandroid.html">DatePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/dimensions.html">Dimensions</a></li><li><a style="margin-left:0;" class="" href="docs/intentandroid.html">IntentAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/interactionmanager.html">InteractionManager</a></li><li><a style="margin-left:0;" class="" href="docs/layoutanimation.html">LayoutAnimation</a></li><li><a style="margin-left:0;" class="" href="docs/linking.html">Linking</a></li><li><a style="margin-left:0;" class="" href="docs/nativemethodsmixin.html">NativeMethodsMixin</a></li><li><a style="margin-left:0;" class="" href="docs/netinfo.html">NetInfo</a></li><li><a style="margin-left:0;" class="" href="docs/panresponder.html">PanResponder</a></li><li><a style="margin-left:0;" class="" href="docs/pixelratio.html">PixelRatio</a></li><li><a style="margin-left:0;" class="" href="docs/pushnotificationios.html">PushNotificationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/statusbarios.html">StatusBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/stylesheet.html">StyleSheet</a></li><li><a style="margin-left:0;" class="" href="docs/timepickerandroid.html">TimePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/toastandroid.html">ToastAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/vibrationios.html">VibrationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/vibration.html">Vibration</a></li></ul></div><div class="nav-docs-section"><h3>Polyfills</h3><ul><li><a style="margin-left:0;" class="" href="docs/flexbox.html">Flexbox</a></li><li><a style="margin-left:0;" class="" href="docs/shadowproptypesios.html">ShadowPropTypesIOS</a></li><li><a style="margin-left:0;" class="" href="docs/geolocation.html">Geolocation</a></li><li><a style="margin-left:0;" class="" href="docs/network.html">Network</a></li><li><a style="margin-left:0;" class="" href="docs/timers.html">Timers</a></li><li><a style="margin-left:0;" class="" href="docs/colors.html">Colors</a></li></ul></div></div></div><div class="inner-content"><a id="content"></a><table width="100%"><tbody><tr><td><h1><a class="anchor" name="cameraroll"></a>CameraRoll <a class="hash-link" href="docs/cameraroll.html#cameraroll">#</a></h1></td><td style="text-align:right;"><a target="_blank" href="https://github.com/facebook/react-native/blob/0.28-stable/Libraries/CameraRoll/CameraRoll.js">Edit on GitHub</a></td></tr></tbody></table><div><div><p><code>CameraRoll</code> provides access to the local camera roll / gallery.</p></div><span><h3><a class="anchor" name="methods"></a>Methods <a class="hash-link" href="docs/cameraroll.html#methods">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="saveimagewithtag"></a><span class="propType">static </span>saveImageWithTag<span class="propType">(tag)</span> <a class="hash-link" href="docs/cameraroll.html#saveimagewithtag">#</a></h4><div><p>Saves the image to the camera roll / gallery.</p><p>On Android, the tag is a local URI, such as <code>"file:///sdcard/img.png"</code>.</p><p>On iOS, the tag can be one of the following:</p><ul><li>local URI</li><li>assets-library tag</li><li>a tag not matching any of the above, which means the image data will
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be stored in memory (and consume memory as long as the process is alive)</li></ul><p>Returns a Promise which when resolved will be passed the new URI.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="getphotos"></a><span class="propType">static </span>getPhotos<span class="propType">(params)</span> <a class="hash-link" href="docs/cameraroll.html#getphotos">#</a></h4><div><p>Returns a Promise with photo identifier objects from the local camera
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roll of the device matching shape defined by <code>getPhotosReturnChecker</code>.</p><p>@param {object} params See <code>getPhotosParamChecker</code>.</p><p>Returns a Promise which when resolved will be of shape <code>getPhotosReturnChecker</code>.</p></div></div></div></span></div><div><div><table width="100%"><tbody><tr><td><h3><a class="anchor" name="examples"></a>Examples <a class="hash-link" href="docs/cameraroll.html#examples">#</a></h3></td><td style="text-align:right;"><a target="_blank" href="https://github.com/facebook/react-native/blob/0.28-stable/Examples/UIExplorer/CameraRollExample.js">Edit on GitHub</a></td></tr></tbody></table><div class="prism language-javascript"><span class="token string">'use strict'</span><span class="token punctuation">;</span>
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const React <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'react'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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const ReactNative <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>
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const <span class="token punctuation">{</span>
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CameraRoll<span class="token punctuation">,</span>
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Image<span class="token punctuation">,</span>
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SliderIOS<span class="token punctuation">,</span>
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StyleSheet<span class="token punctuation">,</span>
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Switch<span class="token punctuation">,</span>
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Text<span class="token punctuation">,</span>
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View<span class="token punctuation">,</span>
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TouchableOpacity
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<span class="token punctuation">}</span> <span class="token operator">=</span> ReactNative<span class="token punctuation">;</span>
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const CameraRollView <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'./CameraRollView'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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const AssetScaledImageExampleView <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'./AssetScaledImageExample'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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const CAMERA_ROLL_VIEW <span class="token operator">=</span> <span class="token string">'camera_roll_view'</span><span class="token punctuation">;</span>
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const CameraRollExample <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>
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<span class="token function">getInitialState<span class="token punctuation">(</span></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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groupTypes<span class="token punctuation">:</span> <span class="token string">'SavedPhotos'</span><span class="token punctuation">,</span>
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sliderValue<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
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bigImages<span class="token punctuation">:</span> <span class="token boolean">true</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 function">render<span class="token punctuation">(</span></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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<Switch
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onValueChange<span class="token operator">=</span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>_onSwitchChange<span class="token punctuation">}</span>
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value<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>bigImages<span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<Text<span class="token operator">></span><span class="token punctuation">{</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>bigImages <span class="token operator">?</span> <span class="token string">'Big'</span> <span class="token punctuation">:</span> <span class="token string">'Small'</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token string">' Images'</span><span class="token punctuation">}</span><<span class="token operator">/</span>Text<span class="token operator">></span>
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<SliderIOS
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value<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>sliderValue<span class="token punctuation">}</span>
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onValueChange<span class="token operator">=</span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>_onSliderChange<span class="token punctuation">}</span>
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<span class="token operator">/</span><span class="token operator">></span>
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<Text<span class="token operator">></span><span class="token punctuation">{</span><span class="token string">'Group Type: '</span> <span class="token operator">+</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>groupTypes<span class="token punctuation">}</span><<span class="token operator">/</span>Text<span class="token operator">></span>
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<CameraRollView
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ref<span class="token operator">=</span><span class="token punctuation">{</span>CAMERA_ROLL_VIEW<span class="token punctuation">}</span>
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batchSize<span class="token operator">=</span><span class="token punctuation">{</span><span class="token number">20</span><span class="token punctuation">}</span>
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groupTypes<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>groupTypes<span class="token punctuation">}</span>
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renderImage<span class="token operator">=</span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>_renderImage<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>
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<span class="token function">loadAsset<span class="token punctuation">(</span></span>asset<span class="token punctuation">)</span><span class="token punctuation">{</span>
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<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>props<span class="token punctuation">.</span>navigator<span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span>props<span class="token punctuation">.</span>navigator<span class="token punctuation">.</span><span class="token function">push<span class="token punctuation">(</span></span><span class="token punctuation">{</span>
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title<span class="token punctuation">:</span> <span class="token string">'Camera Roll Image'</span><span class="token punctuation">,</span>
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component<span class="token punctuation">:</span> AssetScaledImageExampleView<span class="token punctuation">,</span>
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backButtonTitle<span class="token punctuation">:</span> <span class="token string">'Back'</span><span class="token punctuation">,</span>
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passProps<span class="token punctuation">:</span> <span class="token punctuation">{</span> asset<span class="token punctuation">:</span> asset <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 punctuation">;</span>
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<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 function">_renderImage<span class="token punctuation">(</span></span>asset<span class="token punctuation">)</span> <span class="token punctuation">{</span>
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const imageSize <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>bigImages <span class="token operator">?</span> <span class="token number">150</span> <span class="token punctuation">:</span> <span class="token number">75</span><span class="token punctuation">;</span>
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const imageStyle <span class="token operator">=</span> <span class="token punctuation">[</span>styles<span class="token punctuation">.</span>image<span class="token punctuation">,</span> <span class="token punctuation">{</span>width<span class="token punctuation">:</span> imageSize<span class="token punctuation">,</span> height<span class="token punctuation">:</span> imageSize<span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
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const location <span class="token operator">=</span> asset<span class="token punctuation">.</span>node<span class="token punctuation">.</span>location<span class="token punctuation">.</span>longitude <span class="token operator">?</span>
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JSON<span class="token punctuation">.</span><span class="token function">stringify<span class="token punctuation">(</span></span>asset<span class="token punctuation">.</span>node<span class="token punctuation">.</span>location<span class="token punctuation">)</span> <span class="token punctuation">:</span> <span class="token string">'Unknown location'</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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<TouchableOpacity key<span class="token operator">=</span><span class="token punctuation">{</span>asset<span class="token punctuation">}</span> onPress<span class="token operator">=</span><span class="token punctuation">{</span> <span class="token keyword">this</span><span class="token punctuation">.</span>loadAsset<span class="token punctuation">.</span><span class="token function">bind<span class="token punctuation">(</span></span> <span class="token keyword">this</span><span class="token punctuation">,</span> asset <span class="token punctuation">)</span> <span class="token punctuation">}</span><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>row<span class="token punctuation">}</span><span class="token operator">></span>
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||
<Image
|
||
source<span class="token operator">=</span><span class="token punctuation">{</span>asset<span class="token punctuation">.</span>node<span class="token punctuation">.</span>image<span class="token punctuation">}</span>
|
||
style<span class="token operator">=</span><span class="token punctuation">{</span>imageStyle<span class="token punctuation">}</span>
|
||
<span class="token operator">/</span><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>info<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>url<span class="token punctuation">}</span><span class="token operator">></span><span class="token punctuation">{</span>asset<span class="token punctuation">.</span>node<span class="token punctuation">.</span>image<span class="token punctuation">.</span>uri<span class="token punctuation">}</span><<span class="token operator">/</span>Text<span class="token operator">></span>
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<Text<span class="token operator">></span><span class="token punctuation">{</span>location<span class="token punctuation">}</span><<span class="token operator">/</span>Text<span class="token operator">></span>
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||
<Text<span class="token operator">></span><span class="token punctuation">{</span>asset<span class="token punctuation">.</span>node<span class="token punctuation">.</span>group_name<span class="token punctuation">}</span><<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<Text<span class="token operator">></span><span class="token punctuation">{</span><span class="token keyword">new</span> <span class="token class-name">Date</span><span class="token punctuation">(</span>asset<span class="token punctuation">.</span>node<span class="token punctuation">.</span>timestamp<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toString<span class="token punctuation">(</span></span><span class="token punctuation">)</span><span class="token punctuation">}</span><<span class="token operator">/</span>Text<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 operator">/</span>TouchableOpacity<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 function">_onSliderChange<span class="token punctuation">(</span></span>value<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
const options <span class="token operator">=</span> CameraRoll<span class="token punctuation">.</span>GroupTypesOptions<span class="token punctuation">;</span>
|
||
const index <span class="token operator">=</span> Math<span class="token punctuation">.</span><span class="token function">floor<span class="token punctuation">(</span></span>value <span class="token operator">*</span> options<span class="token punctuation">.</span>length <span class="token operator">*</span> <span class="token number">0.99</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
const groupTypes <span class="token operator">=</span> options<span class="token punctuation">[</span>index<span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
<span class="token keyword">if</span> <span class="token punctuation">(</span>groupTypes <span class="token operator">!</span><span class="token operator">==</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>groupTypes<span class="token punctuation">)</span> <span class="token punctuation">{</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>groupTypes<span class="token punctuation">:</span> groupTypes<span class="token punctuation">}</span><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 punctuation">,</span>
|
||
|
||
<span class="token function">_onSwitchChange<span class="token punctuation">(</span></span>value<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">this</span><span class="token punctuation">.</span>refs<span class="token punctuation">[</span>CAMERA_ROLL_VIEW<span class="token punctuation">]</span><span class="token punctuation">.</span><span class="token function">rendererChanged<span class="token punctuation">(</span></span><span class="token punctuation">)</span><span class="token punctuation">;</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> bigImages<span class="token punctuation">:</span> value <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>
|
||
|
||
const 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>
|
||
row<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>
|
||
flex<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>
|
||
url<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
fontSize<span class="token punctuation">:</span> <span class="token number">9</span><span class="token punctuation">,</span>
|
||
marginBottom<span class="token punctuation">:</span> <span class="token number">14</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
image<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
margin<span class="token punctuation">:</span> <span class="token number">4</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
info<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>
|
||
<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>title <span class="token operator">=</span> <span class="token string">'Camera Roll'</span><span class="token punctuation">;</span>
|
||
exports<span class="token punctuation">.</span>description <span class="token operator">=</span> <span class="token string">'Example component that uses CameraRoll to list user\'s photos'</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">'Photos'</span><span class="token punctuation">,</span>
|
||
<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span><span class="token punctuation">:</span> ReactElement<any<span class="token operator">></span> <span class="token punctuation">{</span> <span class="token keyword">return</span> <CameraRollExample <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>
|
||
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