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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/dynamiccolorios.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">DynamicColorIOS</h1></header><article><div><span><p>The <code>DynamicColorIOS</code> function is a platform color type specific to iOS.</p>
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<pre><code class="hljs css language-jsx"><span class="token function">DynamicColorIOS</span><span class="token punctuation">(</span><span class="token punctuation">{</span> light<span class="token operator">:</span> color<span class="token punctuation">,</span> dark<span class="token operator">:</span> color <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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</code></pre>
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<p><code>DynamicColorIOS</code> takes a single argument as an object with two keys: <code>dark</code> and <code>light</code>. These correspond to the colors you want to use for "light mode" and "dark mode" on iOS.</p>
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<blockquote>
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<p>In the future, more keys might become available for different user preferences, like high contrast.</p>
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</blockquote>
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<p>At runtime, the system will choose which of the two colors to display depending on the current system appearance settings. Dynamic colors are useful for branding colors or other app specific colors that still respond automatically to system setting changes.</p>
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<button role="tab" class="button-iosNote" onclick="displayTabs('devNotes', 'iosNote')">iOS</button>
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</span>
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<p><block class="webNote devNotes" /></p>
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<blockquote>
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<p>If you’re familiar with <code>@media (prefers-color-scheme: dark)</code> in CSS, this is similar! Only instead of defining all the colors in a media query, you define which color to use under what circumstances right there where you're using it. Neat!</p>
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</blockquote>
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<p><block class="iosNote devNotes" /></p>
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<blockquote>
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<p>The <code>DynamicColorIOS</code> function is similar to the iOS native methods <a href="https://developer.apple.com/documentation/uikit/uicolor/3238040-colorwithdynamicprovider"><code>UIColor colorWithDynamicProvider:</code></a></p>
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</blockquote>
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<p><block class="endBlock devNotes" /></p>
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<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>
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<pre><code class="hljs css language-jsx"><span class="token keyword">import</span> <span class="token punctuation">{</span> DynamicColorIOS <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'react-native'</span><span class="token punctuation">;</span>
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<span class="token keyword">const</span> customDynamicTextColor <span class="token operator">=</span> <span class="token function">DynamicColorIOS</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
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dark<span class="token operator">:</span> <span class="token string">'lightskyblue'</span><span class="token punctuation">,</span>
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light<span class="token operator">:</span> <span class="token string">'midnightblue'</span>
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<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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</code></pre>
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</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/actionsheetios"><span class="arrow-prev">← </span><span class="function-name-prevnext">ActionSheetIOS</span></a><a class="docs-next button" href="/docs/settings"><span>Settings</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#example">Example</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><div><h5>Docs</h5><a href="/docs/getting-started">Getting Started</a><a href="/docs/tutorial">Tutorial</a><a href="/docs/components-and-apis">Components and APIs</a><a href="/docs/more-resources">More Resources</a></div><div><h5>Community</h5><a href="/help">The React Native Community</a><a href="/showcase">Who's using React Native?</a><a href="https://stackoverflow.com/questions/tagged/react-native" target="_blank">Ask Questions on Stack Overflow</a><a href="https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md">Contributor Guide</a><a href="https://dev.to/t/reactnative" target="_blank">DEV Community</a></div><div><h5>More Resources</h5><a href="/blog">Blog</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="https://reactjs.org" target="_blank">React</a></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2020 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>window.fbAsyncInit = function() {FB.init({appId:'1677033832619985',xfbml:true,version:'v2.7'});};(function(d, s, id){var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) {return;}js = d.createElement(s); js.id = id;js.src = '//connect.facebook.net/en_US/sdk.js';fjs.parentNode.insertBefore(js, fjs);}(document, 'script','facebook-jssdk'));
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