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<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>🚧 MaskedViewIOS · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="&gt; **Deprecated.** Use [@react-native-community/masked-view](https://github.com/react-native-community/react-native-masked-view) instead."/><meta name="docsearch:version" content="0.63"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="🚧 MaskedViewIOS · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://reactnative.dev/"/><meta property="og:description" content="&gt; **Deprecated.** Use [@react-native-community/masked-view](https://github.com/react-native-community/react-native-masked-view) instead."/><meta property="og:image" content="https://reactnative.dev/img/logo-og.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://reactnative.dev/img/logo-og.png"/><link rel="shortcut icon" href="/img/favicon.ico"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://reactnative.dev/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://reactnative.dev/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
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</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/maskedviewios.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">🚧 MaskedViewIOS</h1></header><article><div><span><blockquote>
<p><strong>Deprecated.</strong> Use <a href="https://github.com/react-native-community/react-native-masked-view">@react-native-community/masked-view</a> instead.</p>
</blockquote>
<p>Renders the child view with a mask specified in the <code>maskElement</code> prop.</p>
<h2><a class="anchor" aria-hidden="true" id="example"></a><a href="#example" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Example</h2>
<pre><code class="hljs css language-jsx"><span class="token keyword">import</span> React <span class="token keyword">from</span> <span class="token string">'react'</span><span class="token punctuation">;</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> MaskedViewIOS<span class="token punctuation">,</span> Text<span class="token punctuation">,</span> View <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'react-native'</span><span class="token punctuation">;</span>
<span class="token keyword">class</span> <span class="token class-name">MyMaskedView</span> <span class="token keyword">extends</span> <span class="token class-name">React<span class="token punctuation">.</span>Component</span> <span class="token punctuation">{</span>
<span class="token function">render</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">return</span> <span class="token punctuation">(</span>
<span class="token comment">// Determines shape of the mask</span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token class-name">MaskedViewIOS</span></span>
<span class="token attr-name">style</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span> flex<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span> flexDirection<span class="token operator">:</span> <span class="token string">'row'</span><span class="token punctuation">,</span> height<span class="token operator">:</span> <span class="token string">'100%'</span> <span class="token punctuation">}</span><span class="token punctuation">}</span></span>
<span class="token attr-name">maskElement</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token class-name">View</span></span>
<span class="token attr-name">style</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
<span class="token comment">// Transparent background because mask is based off alpha channel.</span>
backgroundColor<span class="token operator">:</span> <span class="token string">'transparent'</span><span class="token punctuation">,</span>
flex<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
justifyContent<span class="token operator">:</span> <span class="token string">'center'</span><span class="token punctuation">,</span>
alignItems<span class="token operator">:</span> <span class="token string">'center'</span>
<span class="token punctuation">}</span><span class="token punctuation">}</span></span><span class="token punctuation">></span></span><span class="token plain-text">
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token class-name">Text</span></span>
<span class="token attr-name">style</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
fontSize<span class="token operator">:</span> <span class="token number">60</span><span class="token punctuation">,</span>
color<span class="token operator">:</span> <span class="token string">'black'</span><span class="token punctuation">,</span>
fontWeight<span class="token operator">:</span> <span class="token string">'bold'</span>
<span class="token punctuation">}</span><span class="token punctuation">}</span></span><span class="token punctuation">></span></span><span class="token plain-text">
Basic Mask
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span><span class="token class-name">Text</span></span><span class="token punctuation">></span></span><span class="token plain-text">
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span><span class="token class-name">View</span></span><span class="token punctuation">></span></span>
<span class="token punctuation">}</span></span><span class="token punctuation">></span></span><span class="token plain-text">
</span><span class="token punctuation">{</span><span class="token comment">/* Shows behind the mask, you can put anything here, such as an image */</span><span class="token punctuation">}</span><span class="token plain-text">
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token class-name">View</span></span>
<span class="token attr-name">style</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
flex<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
height<span class="token operator">:</span> <span class="token string">'100%'</span><span class="token punctuation">,</span>
backgroundColor<span class="token operator">:</span> <span class="token string">'#324376'</span>
<span class="token punctuation">}</span><span class="token punctuation">}</span></span>
<span class="token punctuation">/></span></span><span class="token plain-text">
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token class-name">View</span></span>
<span class="token attr-name">style</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
flex<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
height<span class="token operator">:</span> <span class="token string">'100%'</span><span class="token punctuation">,</span>
backgroundColor<span class="token operator">:</span> <span class="token string">'#F5DD90'</span>
<span class="token punctuation">}</span><span class="token punctuation">}</span></span>
<span class="token punctuation">/></span></span><span class="token plain-text">
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span><span class="token class-name">View</span></span>
<span class="token attr-name">style</span><span class="token script language-javascript"><span class="token script-punctuation punctuation">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
flex<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
height<span class="token operator">:</span> <span class="token string">'100%'</span><span class="token punctuation">,</span>
backgroundColor<span class="token operator">:</span> <span class="token string">'#F76C5E'</span>
<span class="token punctuation">}</span><span class="token punctuation">}</span></span>
<span class="token punctuation">/></span></span><span class="token plain-text">
</span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span><span class="token class-name">MaskedViewIOS</span></span><span class="token punctuation">></span></span>
<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<p>The following image demonstrates that you can put almost anything behind the mask. The three examples shown are masked <code>&lt;View&gt;</code>, <code>&lt;Text&gt;</code>, and <code>&lt;Image&gt;</code>.</p>
<p><center><img src="/docs/assets/MaskedViewIOS/example.png" width="200"></img></center></p>
<p><strong>The alpha channel of the view rendered by the <code>maskElement</code> prop determines how much of the view's content and background shows through.</strong> Fully or partially opaque pixels allow the underlying content to show through but fully transparent pixels block that content.</p>
<h3><a class="anchor" aria-hidden="true" id="props"></a><a href="#props" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Props</h3>
<ul>
<li><a href="/docs/view#props">View props...</a></li>
</ul>
<ul>
<li><a href="maskedviewios.md#maskelement"><code>maskElement</code></a></li>
</ul>
<hr>
<h1><a class="anchor" aria-hidden="true" id="reference"></a><a href="#reference" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Reference</h1>
<h2><a class="anchor" aria-hidden="true" id="props-1"></a><a href="#props-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Props</h2>
<h3><a class="anchor" aria-hidden="true" id="maskelement"></a><a href="#maskelement" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>maskElement</code></h3>
<table>
<thead>
<tr><th>Type</th><th>Required</th></tr>
</thead>
<tbody>
<tr><td>element</td><td>Yes</td></tr>
</tbody>
</table>
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