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<!DOCTYPE html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><title>View – React Native | A framework for building native apps using React</title><meta name="viewport" content="width=device-width"><meta property="og:title" content="View – 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">0.19</a><div class="nav-site-wrapper"><ul class="nav-site nav-site-internal"><li><a href="docs/getting-started.html" class="active">Docs</a></li><li><a href="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="showcase.html" class="">Showcase</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-section"><h3>Quick Start</h3><ul><li><a style="margin-left:0;" class="" href="docs/getting-started.html#content">Getting Started</a></li><li><a style="margin-left:0;" class="" href="docs/android-setup.html#content">Android Setup</a></li><li><a style="margin-left:0;" class="" href="docs/linux-windows-support.html#content">Linux and Windows Support</a></li><li><a style="margin-left:0;" class="" href="docs/tutorial.html#content">Tutorial</a></li><li><a style="margin-left:0;" class="" href="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="docs/style.html#content">Style</a></li><li><a style="margin-left:0;" class="" href="docs/images.html#content">Images</a></li><li><a style="margin-left:0;" class="" href="docs/gesture-responder-system.html#content">Gesture Responder System</a></li><li><a style="margin-left:0;" class="" href="docs/animations.html#content">Animations</a></li><li><a style="margin-left:0;" class="" href="docs/accessibility.html#content">Accessibility</a></li><li><a style="margin-left:0;" class="" href="docs/direct-manipulation.html#content">Direct Manipulation</a></li><li><a style="margin-left:0;" class="" href="docs/debugging.html#content">Debugging</a></li><li><a style="margin-left:0;" class="" href="docs/testing.html#content">Testing</a></li><li><a style="margin-left:0;" class="" href="docs/javascript-environment.html#content">JavaScript Environment</a></li><li><a style="margin-left:0;" class="" href="docs/navigator-comparison.html#content">Navigator Comparison</a></li><li><a style="margin-left:0;" class="" href="docs/known-issues.html#content">Known Issues</a></li><li><a style="margin-left:0;" class="" href="docs/performance.html#content">Performance</a></li><li><a style="margin-left:0;" class="" href="docs/upgrading.html#content">Upgrading</a></li><li><a style="margin-left:0;" class="" href="docs/platform-specific-code.html#content">Platform Specific Code</a></li></ul></div><div class="nav-docs-section"><h3>Guides (iOS)</h3><ul><li><a style="margin-left:0;" class="" href="docs/native-modules-ios.html#content">Native Modules</a></li><li><a style="margin-left:0;" class="" href="docs/native-components-ios.html#content">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="docs/linking-libraries-ios.html#content">Linking Libraries</a></li><li><a style="margin-left:0;" class="" href="docs/running-on-device-ios.html#content">Running On Device</a></li><li><a style="margin-left:0;" class="" href="docs/embedded-app-ios.html#content">Integrating with Existing Apps</a></li><li><a style="margin-left:0;" class="" href="docs/communication-ios.html#content">Communication between native and React 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#content">Native Modules</a></li><li><a style="margin-left:0;" class="" href="docs/native-components-android.html#content">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="docs/running-on-device-android.html#content">Running On Device</a></li><li><a style="margin-left:0;" class="" href="docs/embedded-app-android.html#content">Integrating with Existing Apps</a></li><li><a style="margin-left:0;" class="" href="docs/signed-apk-android.html#content">Generating Signed APK</a></li><li><a style="margin-left:0;" class="" href="docs/android-ui-performance.html#content">Profiling Android UI Performance</a></li><li><a style="margin-left:0;" class="" href="docs/android-building-from-source.html#content">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/activityindicatorios.html#content">ActivityIndicatorIOS</a></li><li><a style="margin-left:0;" class="" href="docs/datepickerios.html#content">DatePickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/drawerlayoutandroid.html#content">DrawerLayoutAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/image.html#content">Image</a></li><li><a style="margin-left:0;" class="" href="docs/listview.html#content">ListView</a></li><li><a style="margin-left:0;" class="" href="docs/mapview.html#content">MapView</a></li><li><a style="margin-left:0;" class="" href="docs/modal.html#content">Modal</a></li><li><a style="margin-left:0;" class="" href="docs/navigator.html#content">Navigator</a></li><li><a style="margin-left:0;" class="" href="docs/navigatorios.html#content">NavigatorIOS</a></li><li><a style="margin-left:0;" class="" href="docs/pickerios.html#content">PickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/progressbarandroid.html#content">ProgressBarAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/progressviewios.html#content">ProgressViewIOS</a></li><li><a style="margin-left:0;" class="" href="docs/pulltorefreshviewandroid.html#content">PullToRefreshViewAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/refreshcontrol.html#content">RefreshControl</a></li><li><a style="margin-left:0;" class="" href="docs/scrollview.html#content">ScrollView</a></li><li><a style="margin-left:0;" class="" href="docs/segmentedcontrolios.html#content">SegmentedControlIOS</a></li><li><a style="margin-left:0;" class="" href="docs/sliderios.html#content">SliderIOS</a></li><li><a style="margin-left:0;" class="" href="docs/switch.html#content">Switch</a></li><li><a style="margin-left:0;" class="" href="docs/tabbarios.html#content">TabBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/tabbarios-item.html#content">TabBarIOS.Item</a></li><li><a style="margin-left:0;" class="" href="docs/text.html#content">Text</a></li><li><a style="margin-left:0;" class="" href="docs/textinput.html#content">TextInput</a></li><li><a style="margin-left:0;" class="" href="docs/toolbarandroid.html#content">ToolbarAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/touchablehighlight.html#content">TouchableHighlight</a></li><li><a style="margin-left:0;" class="" href="docs/touchablenativefeedback.html#content">TouchableNativeFeedback</a></li><li><a style="margin-left:0;" class="" href="docs/touchableopacity.html#content">TouchableOpacity</a></li><li><a style="margin-left:0;" class="" href="docs/touchablewithoutfeedback.html#content">TouchableWithoutFeedback</a></li><li><a style="margin-left:0;" class="active" href="docs/view.html#content">View</a></li><li><a style="margin-left:0;" class="" href="docs/viewpagerandroid.html#content">ViewPagerAndroid</a></li><li><a style="margin-left:0;" class="" href="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="docs/actionsheetios.html#content">ActionSheetIOS</a></li><li><a style="margin-left:0;" class="" href="docs/alert.html#content">Alert</a></li><li><a style="margin-left:0;" class="" href="docs/alertios.html#content">AlertIOS</a></li><li><a style="margin-left:0;" class="" href="docs/animated.html#content">Animated</a></li><li><a style="margin-left:0;" class="" href="docs/appregistry.html#content">AppRegistry</a></li><li><a style="margin-left:0;" class="" href="docs/appstateios.html#content">AppStateIOS</a></li><li><a style="margin-left:0;" class="" href="docs/appstate.html#content">AppState</a></li><li><a style="margin-left:0;" class="" href="docs/asyncstorage.html#content">AsyncStorage</a></li><li><a style="margin-left:0;" class="" href="docs/backandroid.html#content">BackAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/cameraroll.html#content">CameraRoll</a></li><li><a style="margin-left:0;" class="" href="docs/dimensions.html#content">Dimensions</a></li><li><a style="margin-left:0;" class="" href="docs/intentandroid.html#content">IntentAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/interactionmanager.html#content">InteractionManager</a></li><li><a style="margin-left:0;" class="" href="docs/layoutanimation.html#content">LayoutAnimation</a></li><li><a style="margin-left:0;" class="" href="docs/linkingios.html#content">LinkingIOS</a></li><li><a style="margin-left:0;" class="" href="docs/nativemethodsmixin.html#content">NativeMethodsMixin</a></li><li><a style="margin-left:0;" class="" href="docs/netinfo.html#content">NetInfo</a></li><li><a style="margin-left:0;" class="" href="docs/panresponder.html#content">PanResponder</a></li><li><a style="margin-left:0;" class="" href="docs/pixelratio.html#content">PixelRatio</a></li><li><a style="margin-left:0;" class="" href="docs/pushnotificationios.html#content">PushNotificationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/statusbarios.html#content">StatusBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/stylesheet.html#content">StyleSheet</a></li><li><a style="margin-left:0;" class="" href="docs/toastandroid.html#content">ToastAndroid</a></li><li><a style="margin-left:0;" class="" href="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="docs/flexbox.html#content">Flexbox</a></li><li><a style="margin-left:0;" class="" href="docs/geolocation.html#content">Geolocation</a></li><li><a style="margin-left:0;" class="" href="docs/network.html#content">Network</a></li><li><a style="margin-left:0;" class="" href="docs/timers.html#content">Timers</a></li></ul></div></div><div class="inner-content"><a id="content"></a><h1>View</h1><div><div><p>The most fundamental component for building UI, <code>View</code> is a
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container that supports layout with flexbox, style, some touch handling, and
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accessibility controls, and is designed to be nested inside other views and
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to have 0 to many children of any type. <code>View</code> maps directly to the native
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view equivalent on whatever platform React is running on, whether that is a
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<code>UIView</code>, <code><div></code>, <code>android.view</code>, etc. This example creates a <code>View</code> that
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wraps two colored boxes and custom component in a row with padding.</p><div class="prism language-javascript"><View style<span class="token operator">=</span><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> height<span class="token punctuation">:</span> <span class="token number">100</span><span class="token punctuation">,</span> padding<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>backgroundColor<span class="token punctuation">:</span> <span class="token string">'blue'</span><span class="token punctuation">,</span> flex<span class="token punctuation">:</span> <span class="token number">0.3</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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<View style<span class="token operator">=</span><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> flex<span class="token punctuation">:</span> <span class="token number">0.5</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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<MyCustomComponent <span class="token punctuation">{</span><span class="token punctuation">.</span><span class="token punctuation">.</span><span class="token punctuation">.</span>customProps<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></div><p><code>View</code>s are designed to be used with <code>StyleSheet</code>s for clarity and
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performance, although inline styles are also supported.</p></div><h3><a class="anchor" name="props"></a><a class="edit-github" href="https://github.com/facebook/react-native/blob/master/Libraries/Components/View/View.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="accessibilitylabel"></a>accessibilityLabel <span class="propType">string</span> <a class="hash-link" href="#accessibilitylabel">#</a></h4><div><p>Overrides the text that's read by the screen reader when the user interacts
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with the element. By default, the label is constructed by traversing all the
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children and accumulating all the Text nodes separated by space.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessible"></a>accessible <span class="propType">bool</span> <a class="hash-link" href="#accessible">#</a></h4><div><p>When true, indicates that the view is an accessibility element. By default,
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all the touchable elements are accessible.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onaccessibilitytap"></a>onAccessibilityTap <span class="propType">function</span> <a class="hash-link" href="#onaccessibilitytap">#</a></h4><div><p>When <code>accessible</code> is true, the system will try to invoke this function
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when the user performs accessibility tap gesture.</p></div></div><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</p><p> {nativeEvent: { layout: {x, y, width, height}}}.</p><p>This event is fired immediately once the layout has been calculated, but
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the new layout may not yet be reflected on the screen at the time the
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event is received, especially if a layout animation is in progress.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onmagictap"></a>onMagicTap <span class="propType">function</span> <a class="hash-link" href="#onmagictap">#</a></h4><div><p>When <code>accessible</code> is true, the system will invoke this function when the
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user performs the magic tap gesture.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onmoveshouldsetresponder"></a>onMoveShouldSetResponder <span class="propType">function</span> <a class="hash-link" href="#onmoveshouldsetresponder">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onmoveshouldsetrespondercapture"></a>onMoveShouldSetResponderCapture <span class="propType">function</span> <a class="hash-link" href="#onmoveshouldsetrespondercapture">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onrespondergrant"></a>onResponderGrant <span class="propType">function</span> <a class="hash-link" href="#onrespondergrant">#</a></h4><div><p>For most touch interactions, you'll simply want to wrap your component in
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<code>TouchableHighlight</code> or <code>TouchableOpacity</code>. Check out <code>Touchable.js</code>,
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<code>ScrollResponder.js</code> and <code>ResponderEventPlugin.js</code> for more discussion.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onrespondermove"></a>onResponderMove <span class="propType">function</span> <a class="hash-link" href="#onrespondermove">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onresponderreject"></a>onResponderReject <span class="propType">function</span> <a class="hash-link" href="#onresponderreject">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onresponderrelease"></a>onResponderRelease <span class="propType">function</span> <a class="hash-link" href="#onresponderrelease">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onresponderterminate"></a>onResponderTerminate <span class="propType">function</span> <a class="hash-link" href="#onresponderterminate">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onresponderterminationrequest"></a>onResponderTerminationRequest <span class="propType">function</span> <a class="hash-link" href="#onresponderterminationrequest">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onstartshouldsetresponder"></a>onStartShouldSetResponder <span class="propType">function</span> <a class="hash-link" href="#onstartshouldsetresponder">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onstartshouldsetrespondercapture"></a>onStartShouldSetResponderCapture <span class="propType">function</span> <a class="hash-link" href="#onstartshouldsetrespondercapture">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="pointerevents"></a>pointerEvents <span class="propType">enum('box-none', 'none', 'box-only', 'auto')</span> <a class="hash-link" href="#pointerevents">#</a></h4><div><p>In the absence of <code>auto</code> property, <code>none</code> is much like <code>CSS</code>'s <code>none</code>
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value. <code>box-none</code> is as if you had applied the <code>CSS</code> class:</p><div class="prism language-javascript"><span class="token punctuation">.</span>box<span class="token operator">-</span>none <span class="token punctuation">{</span>
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pointer<span class="token operator">-</span>events<span class="token punctuation">:</span> none<span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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<span class="token punctuation">.</span>box<span class="token operator">-</span>none <span class="token operator">*</span> <span class="token punctuation">{</span>
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pointer<span class="token operator">-</span>events<span class="token punctuation">:</span> all<span class="token punctuation">;</span>
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<span class="token punctuation">}</span></div><p><code>box-only</code> is the equivalent of</p><div class="prism language-javascript"><span class="token punctuation">.</span>box<span class="token operator">-</span>only <span class="token punctuation">{</span>
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pointer<span class="token operator">-</span>events<span class="token punctuation">:</span> all<span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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<span class="token punctuation">.</span>box<span class="token operator">-</span>only <span class="token operator">*</span> <span class="token punctuation">{</span>
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pointer<span class="token operator">-</span>events<span class="token punctuation">:</span> none<span class="token punctuation">;</span>
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<span class="token punctuation">}</span></div><p>But since <code>pointerEvents</code> does not affect layout/appearance, and we are
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already deviating from the spec by adding additional modes, we opt to not
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include <code>pointerEvents</code> on <code>style</code>. On some platforms, we would need to
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implement it as a <code>className</code> anyways. Using <code>style</code> or not is an
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implementation detail of the platform.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="removeclippedsubviews"></a>removeClippedSubviews <span class="propType">bool</span> <a class="hash-link" href="#removeclippedsubviews">#</a></h4><div><p>This is a special performance property exposed by RCTView and is useful
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for scrolling content when there are many subviews, most of which are
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offscreen. For this property to be effective, it must be applied to a
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view that contains many subviews that extend outside its bound. The
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subviews must also have overflow: hidden, as should the containing view
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(or one of its superviews).</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="shadowproptypesios.html#style">ShadowPropTypesIOS#style...</a></h6></div><div class="prop"><h6 class="propTitle"><a href="transforms.html#proptypes">Transforms...</a></h6></div><div class="prop"><h6 class="propTitle">backfaceVisibility <span class="propType">enum('visible', 'hidden')</span></h6></div><div class="prop"><h6 class="propTitle">backgroundColor <span class="propType">ColorPropType</span></h6></div><div class="prop"><h6 class="propTitle">borderColor <span class="propType">ColorPropType</span></h6></div><div class="prop"><h6 class="propTitle">borderTopColor <span class="propType">ColorPropType</span></h6></div><div class="prop"><h6 class="propTitle">borderRightColor <span class="propType">ColorPropType</span></h6></div><div class="prop"><h6 class="propTitle">borderBottomColor <span class="propType">ColorPropType</span></h6></div><div class="prop"><h6 class="propTitle">borderLeftColor <span class="propType">ColorPropType</span></h6></div><div class="prop"><h6 class="propTitle">borderRadius <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderTopLeftRadius <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderTopRightRadius <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderBottomLeftRadius <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderBottomRightRadius <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderStyle <span class="propType">enum('solid', 'dotted', 'dashed')</span></h6></div><div class="prop"><h6 class="propTitle">borderWidth <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderTopWidth <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderRightWidth <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderBottomWidth <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">borderLeftWidth <span class="propType">number</span></h6></div><div class="prop"><h6 class="propTitle">opacity <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">elevation <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>Used to locate this view in end-to-end tests. NB: disables the 'layout-only
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view removal' optimization for this view!</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessibilitycomponenttype"></a><span class="platform">android</span>accessibilityComponentType <span class="propType">AccessibilityComponentType</span> <a class="hash-link" href="#accessibilitycomponenttype">#</a></h4><div><p>Indicates to accessibility services to treat UI component like a
|
||
native one. Works for Android only.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessibilityliveregion"></a><span class="platform">android</span>accessibilityLiveRegion <span class="propType">enum('none', 'polite', 'assertive')</span> <a class="hash-link" href="#accessibilityliveregion">#</a></h4><div><p>Indicates to accessibility services whether the user should be notified
|
||
when this view changes. Works for Android API >= 19 only.
|
||
See <a href="http://developer.android.com/reference/android/view/View.html#attr_android:accessibilityLiveRegion">http://developer.android.com/reference/android/view/View.html#attr_android:accessibilityLiveRegion</a>
|
||
for references.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessibilitytraits"></a><span class="platform">ios</span>accessibilityTraits <span class="propType">AccessibilityTraits, [AccessibilityTraits]</span> <a class="hash-link" href="#accessibilitytraits">#</a></h4><div><p>Provides additional traits to screen reader. By default no traits are
|
||
provided unless specified otherwise in element</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="collapsable"></a><span class="platform">android</span>collapsable <span class="propType">bool</span> <a class="hash-link" href="#collapsable">#</a></h4><div><p>Views that are only used to layout their children or otherwise don't draw
|
||
anything may be automatically removed from the native hierarchy as an
|
||
optimization. Set this property to <code>false</code> to disable this optimization and
|
||
ensure that this View exists in the native view hierarchy.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="importantforaccessibility"></a><span class="platform">android</span>importantForAccessibility <span class="propType">enum('auto', 'yes', 'no', 'no-hide-descendants')</span> <a class="hash-link" href="#importantforaccessibility">#</a></h4><div><p>Controls how view is important for accessibility which is if it
|
||
fires accessibility events and if it is reported to accessibility services
|
||
that query the screen. Works for Android only.
|
||
See <a href="http://developer.android.com/reference/android/R.attr.html#importantForAccessibility">http://developer.android.com/reference/android/R.attr.html#importantForAccessibility</a>
|
||
for references.
|
||
Possible values:
|
||
'auto' - The system determines whether the view is important for accessibility -
|
||
default (recommended).
|
||
'yes' - The view is important for accessibility.
|
||
'no' - The view is not important for accessibility.
|
||
'no-hide-descendants' - The view is not important for accessibility,
|
||
nor are any of its descendant views.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="needsoffscreenalphacompositing"></a><span class="platform">android</span>needsOffscreenAlphaCompositing <span class="propType">bool</span> <a class="hash-link" href="#needsoffscreenalphacompositing">#</a></h4><div><p>Whether this view needs to rendered offscreen and composited with an alpha
|
||
in order to preserve 100% correct colors and blending behavior. The default
|
||
(false) falls back to drawing the component and its children with an alpha
|
||
applied to the paint used to draw each element instead of rendering the full
|
||
component offscreen and compositing it back with an alpha value. This default
|
||
may be noticeable and undesired in the case where the View you are setting
|
||
an opacity on has multiple overlapping elements (e.g. multiple overlapping
|
||
Views, or text and a background).</p><p>Rendering offscreen to preserve correct alpha behavior is extremely
|
||
expensive and hard to debug for non-native developers, which is why it is
|
||
not turned on by default. If you do need to enable this property for an
|
||
animation, consider combining it with renderToHardwareTextureAndroid if the
|
||
view <strong>contents</strong> are static (i.e. it doesn't need to be redrawn each frame).
|
||
If that property is enabled, this View will be rendered off-screen once,
|
||
saved in a hardware texture, and then composited onto the screen with an alpha
|
||
each frame without having to switch rendering targets on the GPU.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="rendertohardwaretextureandroid"></a><span class="platform">android</span>renderToHardwareTextureAndroid <span class="propType">bool</span> <a class="hash-link" href="#rendertohardwaretextureandroid">#</a></h4><div><p>Whether this view should render itself (and all of its children) into a
|
||
single hardware texture on the GPU.</p><p>On Android, this is useful for animations and interactions that only
|
||
modify opacity, rotation, translation, and/or scale: in those cases, the
|
||
view doesn't have to be redrawn and display lists don't need to be
|
||
re-executed. The texture can just be re-used and re-composited with
|
||
different parameters. The downside is that this can use up limited video
|
||
memory, so this prop should be set back to false at the end of the
|
||
interaction/animation.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="shouldrasterizeios"></a><span class="platform">ios</span>shouldRasterizeIOS <span class="propType">bool</span> <a class="hash-link" href="#shouldrasterizeios">#</a></h4><div><p>Whether this view should be rendered as a bitmap before compositing.</p><p>On iOS, this is useful for animations and interactions that do not
|
||
modify this component's dimensions nor its children; for example, when
|
||
translating the position of a static view, rasterization allows the
|
||
renderer to reuse a cached bitmap of a static view and quickly composite
|
||
it during each frame.</p><p>Rasterization incurs an off-screen drawing pass and the bitmap consumes
|
||
memory. Test and measure when using this property.</p></div></div></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/ViewExample.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> Platform <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'Platform'</span><span class="token punctuation">)</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>
|
||
StyleSheet<span class="token punctuation">,</span>
|
||
Text<span class="token punctuation">,</span>
|
||
View<span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span> <span class="token operator">=</span> React<span class="token punctuation">;</span>
|
||
<span class="token keyword">var</span> TouchableWithoutFeedback <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'TouchableWithoutFeedback'</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>
|
||
box<span class="token punctuation">:</span> <span class="token punctuation">{</span>
|
||
backgroundColor<span class="token punctuation">:</span> <span class="token string">'#527FE4'</span><span class="token punctuation">,</span>
|
||
borderColor<span class="token punctuation">:</span> <span class="token string">'#000033'</span><span class="token punctuation">,</span>
|
||
borderWidth<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 keyword">var</span> ViewBorderStyleExample <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>
|
||
<span class="token function">getInitialState<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">return</span> <span class="token punctuation">{</span>
|
||
showBorder<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><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>
|
||
<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||
<TouchableWithoutFeedback onPress<span class="token operator">=</span><span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>_handlePress<span class="token punctuation">}</span><span class="token operator">></span>
|
||
<View<span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
|
||
borderWidth<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
|
||
borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span>
|
||
borderStyle<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>showBorder <span class="token operator">?</span> <span class="token string">'dashed'</span> <span class="token punctuation">:</span> <span class="token keyword">null</span><span class="token punctuation">,</span>
|
||
padding<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>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Dashed border style
|
||
<<span class="token operator">/</span>Text<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><span class="token punctuation">{</span>
|
||
marginTop<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span>
|
||
borderWidth<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
|
||
borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span>
|
||
borderStyle<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>showBorder <span class="token operator">?</span> <span class="token string">'dotted'</span> <span class="token punctuation">:</span> <span class="token keyword">null</span><span class="token punctuation">,</span>
|
||
padding<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>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Dotted border style
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<<span class="token operator">/</span>TouchableWithoutFeedback<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 function">_handlePress<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>showBorder<span class="token punctuation">:</span> <span class="token operator">!</span><span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>showBorder<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>
|
||
|
||
exports<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'<View>'</span><span class="token punctuation">;</span>
|
||
exports<span class="token punctuation">.</span>description <span class="token operator">=</span> <span class="token string">'Basic building block of all UI, examples that '</span> <span class="token operator">+</span>
|
||
<span class="token string">'demonstrate some of the many styles available.'</span><span class="token punctuation">;</span>
|
||
|
||
exports<span class="token punctuation">.</span>displayName <span class="token operator">=</span> <span class="token string">'ViewExample'</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">'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><span class="token punctuation">{</span>backgroundColor<span class="token punctuation">:</span> <span class="token string">'#527FE4'</span><span class="token punctuation">,</span> padding<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>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Blue background
|
||
<<span class="token operator">/</span>Text<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">'Border'</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><span class="token punctuation">{</span>borderColor<span class="token punctuation">:</span> <span class="token string">'#527FE4'</span><span class="token punctuation">,</span> borderWidth<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> padding<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">}</span><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>fontSize<span class="token punctuation">:</span> <span class="token number">11</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>5px blue border<<span class="token operator">/</span>Text<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">'Padding/Margin'</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><span class="token punctuation">{</span>borderColor<span class="token punctuation">:</span> <span class="token string">'#bb0000'</span><span class="token punctuation">,</span> borderWidth<span class="token punctuation">:</span> <span class="token number">0.5</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>box<span class="token punctuation">,</span> <span class="token punctuation">{</span>padding<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><span class="token operator">></span>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>5px padding<<span class="token operator">/</span>Text<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><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>box<span class="token punctuation">,</span> <span class="token punctuation">{</span>margin<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><span class="token operator">></span>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>5px margin<<span class="token operator">/</span>Text<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><span class="token punctuation">[</span>styles<span class="token punctuation">.</span>box<span class="token punctuation">,</span> <span class="token punctuation">{</span>margin<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> padding<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> alignSelf<span class="token punctuation">:</span> <span class="token string">'flex-start'</span><span class="token punctuation">}</span><span class="token punctuation">]</span><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>fontSize<span class="token punctuation">:</span> <span class="token number">11</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
5px margin and padding<span class="token punctuation">,</span>
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>
|
||
widthAutonomous<span class="token operator">=</span><span class="token boolean">true</span>
|
||
<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<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">'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><span class="token punctuation">{</span>borderWidth<span class="token punctuation">:</span> <span class="token number">0.5</span><span class="token punctuation">,</span> borderRadius<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> padding<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>
|
||
<Text style<span class="token operator">=</span><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><span class="token punctuation">}</span><span class="token operator">></span>
|
||
Too much use of `borderRadius` <span class="token punctuation">(</span>especially large radii<span class="token punctuation">)</span> on
|
||
anything which is scrolling may result <span class="token keyword">in</span> dropped frames<span class="token punctuation">.</span>
|
||
Use sparingly<span class="token punctuation">.</span>
|
||
<<span class="token operator">/</span>Text<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">'Border Style'</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> <ViewBorderStyleExample <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>
|
||
title<span class="token punctuation">:</span> <span class="token string">'Circle with 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><span class="token punctuation">{</span>borderRadius<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">,</span> borderWidth<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span> width<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></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">'Overflow'</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><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 operator">></span>
|
||
<View
|
||
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">95</span><span class="token punctuation">,</span>
|
||
height<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">,</span>
|
||
marginRight<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">,</span>
|
||
marginBottom<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span>
|
||
overflow<span class="token punctuation">:</span> <span class="token string">'hidden'</span><span class="token punctuation">,</span>
|
||
borderWidth<span class="token punctuation">:</span> <span class="token number">0.5</span><span class="token punctuation">,</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<View 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">200</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Text<span class="token operator">></span>Overflow hidden<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<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><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">95</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">,</span> marginBottom<span class="token punctuation">:</span> <span class="token number">5</span><span class="token punctuation">,</span> borderWidth<span class="token punctuation">:</span> <span class="token number">0.5</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<View 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">200</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">20</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||
<Text<span class="token operator">></span>Overflow visible<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<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<span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><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 operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">0</span><<span class="token operator">/</span>Text<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><span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.1</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">0.1</span><<span class="token operator">/</span>Text<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><span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.3</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">0.3</span><<span class="token operator">/</span>Text<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><span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.5</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">0.5</span><<span class="token operator">/</span>Text<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><span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.7</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">0.7</span><<span class="token operator">/</span>Text<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><span class="token punctuation">{</span>opacity<span class="token punctuation">:</span> <span class="token number">0.9</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">0.9</span><<span class="token operator">/</span>Text<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><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 operator">></span><Text<span class="token operator">></span>Opacity <span class="token number">1</span><<span class="token operator">/</span>Text<span class="token operator">></span><<span class="token operator">/</span>View<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>
|
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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