react-native-elements

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You've installed React Native Elements and your immediate question goes something like this: <blockquote> So umm, how I do change how it looks? </blockquote> Great question! A UI Kit wouldn't be that useful if the apps everyone built looked the same right? For this case React Native Elements provide a number of props on each component to enable you to style them how you want. <h2><a class="anchor" aria-hidden="true" id="component-styles"></a><a href="#component-styles" 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>Component Styles</h2> Every component from React Native Elements has a container around it. The container is just a traditional <code><View /></code> from react native that has some styling on it. This default styling prevents components from colliding with each other. If you want to change how two components react to each on the screen your first stop should be the <code>containerStyle</code> prop. Similar to <code>containerStyle</code>, components may provide their custom style props like <code>buttonStyle</code>, <code>titleStyle</code> etc. Always refer to the documentation for the component to find out which style props it provides. <h2><a class="anchor" aria-hidden="true" id="theming"></a><a href="#theming" 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>Theming</h2> While component styles are great for single use, you may want to have the same styling for every instance of a component. For example, you may want all your buttons to be blue or have the same font. Here are some ways to reuse styles with React Native Elements. <h3><a class="anchor" aria-hidden="true" id="using-composition"></a><a href="#using-composition" 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>Using Composition</h3> With this approach, we create one component with the styles we want and use that instead of the built-in component. <pre><code class="hljs css language-jsx">import React from 'react'; import { Button } from 'react-native-elements'; const RaisedButton = props => <Button raised {...props} />; // Your App const App = () => { return <RaisedButton title="Yea" />; }; </code></pre> If we want to use a button that's raised in our app, we can use <code>RaisedButton</code> instead of using <code>Button</code>. This component still accepts all the props from the normal <code>Button</code> just that it has the <code>raised</code> prop set by default. <h3><a class="anchor" aria-hidden="true" id="using-themeprovider"></a><a href="#using-themeprovider" 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>Using ThemeProvider</h3> The previous solution works great for only one component, but imagine having to do this for every component you want custom styles for. That could get a bit tedious to manage. Thankfully, there's a better way to do this. React Native Elements ships with a 3 utilities for large-scale theming. Firstly you'll want to set up your <code>ThemeProvider</code>. <pre><code class="hljs css language-jsx">import { ThemeProvider, Button } from 'react-native-elements'; const theme = { Button: { raised: true, }, }; // Your App const App = () => { return ( <ThemeProvider theme={theme}> <Button title="My Button" /> <Button title="My 2nd Button" /> </ThemeProvider> ); }; </code></pre> The example above acheives the same goals as the first example — apply the same styles to multiple instances of <code>Button</code> in the app. However this example applies the <code>raised</code> prop to every instance of <code>Button</code> inside the component tree under <code>ThemeProvider</code>. Both of these buttons will have the <code>raised</code> prop set to true. This is extremely convenient and is made possible through <a href="https://reactjs.org/docs/context.html">React's Context API</a>. <hr> <h3><a class="anchor" aria-hidden="true" id="order-of-styles"></a><a href="#order-of-styles" 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>Order of Styles</h3> What happens now if we want a <code>Button</code> that isn't raised? To do that we have to the understand the order in which styles are applied. <blockquote> Internal > Theme > External </blockquote> <h4><a class="anchor" aria-hidden="true" id="internal"></a><a href="#internal" 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>Internal</h4> Internal components styles are the styles which are defined in the component file. These are applied first. <h4><a class="anchor" aria-hidden="true" id="theme"></a><a href="#theme" 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>Theme</h4> Theme styles are the values that are set by the ThemeProvider If present, these are applied second. <pre><code class="hljs css language-jsx">import { ThemeProvider, Button } from 'react-native-elements'; const theme = { Button: { titleStyle: { color: 'red', }, }, }; const App = () => { return ( <ThemeProvider theme={theme}> <Button title="My Button" /> </ThemeProvider> ); }; </code></pre> This will override the white color for the title set in the component's style. <h4><a class="anchor" aria-hidden="true" id="external"></a><a href="#external" 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>External</h4> External styles are the styles which are set through the component props. These are applied last and have the highest precendence. <pre><code class="hljs css language-jsx">import { ThemeProvider, Button } from 'react-native-elements'; const theme = { Button: { titleStyle: { color: 'red', }, }, }; const App = () => { return ( <ThemeProvider theme={theme}> <Card title="My Button" titleStyle={{ color: 'pink' }} /> </ThemeProvider> ); }; </code></pre> This will override both the white color for the title set in the component's style as well as the red color set in the theme. <blockquote> Remember if you want to override the values set in the theme you can always use component props. </blockquote> <hr> <h3><a class="anchor" aria-hidden="true" id="the-theme-object"></a><a href="#the-theme-object" 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>The Theme Object</h3> By default, the theme object looks like this. You can add whatever values you want to the theme, and they will be merged with the default. By default the platform colors aren't used anywhere. These native colors are added for your convenience. <pre><code class="hljs css language-tsx">interface theme { colors: { primary; secondary; grey0; grey1; grey2; grey3; grey4; grey5; greyOutline; searchBg; success; error; warning; divider; platform: { ios: { primary; secondary; success; error; warning; }; android: { // Same as ios }; }; }; } </code></pre> Setting styles in the theme is as simple as using the name of the component, as a key and the props you want to change as the value. <pre><code class="hljs css language-jsx">import { ThemeProvider } from 'react-native-elements'; const theme = { Avatar: { rounded: true, }, Badge: { textStyle: { fontSize: 30 }, }, }; ... <ThemeProvider theme={theme}> </code></pre> <hr> <h3><a class="anchor" aria-hidden="true" id="using-the-theme-in-your-own-components"></a><a href="#using-the-theme-in-your-own-components" 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>Using the theme in your own components</h3> You may want to make use of the theming utilities in your own components. For this you can use the <code>withTheme</code> HOC exported from this library. It adds two props to the component it wraps - <code>theme</code> and <code>updateTheme</code>. <pre><code class="hljs css language-jsx">import React from 'react'; import { Text } from 'react-native'; import { withTheme } from 'react-native-elements'; function MyComponent(props) { const { theme, updateTheme } = props; return <Text style={{ color: theme.colors.primary }}>Yo!</Text>; } export default withTheme(MyComponent); </code></pre> The <code>updateTheme</code> merges the theme passed in with the current theme. <pre><code class="hljs css language-jsx">const theme = { colors: { primary: 'pink', }, }; // We can update the primary color updateTheme({ colors: { primary: 'red' } }); </code></pre> Don't want to wrap your components? You can use the <code>ThemeConsumer</code> component which uses render props! <pre><code class="hljs css language-jsx">import React from 'react'; import { Text } from 'react-native'; import { ThemeConsumer } from 'react-native-elements'; const MyComponent = () => ( <ThemeConsumer> {({ theme }) => ( <Text style={{ color: theme.colors.primary }}>Yo!</Text>; )} </ThemeConsumer> ) </code></pre> <hr> <h3><a class="anchor" aria-hidden="true" id="using-the-respective-platform-s-native-colors"></a><a href="#using-the-respective-platform-s-native-colors" 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>Using the respective platform's native colors</h3> You may want to style your app using the native color palette. You can do this using the <code>colors</code> object and the <code>Platform</code> API. <pre><code class="hljs css language-jsx">import { Platform } from 'react-native'; import { Button, colors, ThemeProvider } from 'react-native-elements'; const theme = { colors: { ...Platform.select({ default: colors.platform.android, ios: colors.platform.ios, }), }, }; const App = () => { return ( <ThemeProvider theme={theme}> // This button's color will now be the default iOS / Android blue. <Button title="My Button" /> </ThemeProvider> ); }; </code></pre> </div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/react-native-elements/docs/overview.html">← Overview</a><a class="docs-next button" href="/react-native-elements/docs/troubleshooting.html">Troubleshooting →</a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#component-styles">Component Styles</a></li><li><a href="#theming">Theming</a><ul class="toc-headings"><li><a href="#using-composition">Using Composition</a></li><li><a href="#using-themeprovider">Using ThemeProvider</a></li><li><a href="#order-of-styles">Order of Styles</a></li><li><a href="#the-theme-object">The Theme Object</a></li><li><a href="#using-the-theme-in-your-own-components">Using the theme in your own components</a></li><li><a href="#using-the-respective-platform-s-native-colors">Using the respective platform's native colors</a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/react-native-elements/" class="nav-home"><img src="/react-native-elements/img/logo.png" alt="React Native Elements" width="120" height="58"/></a><div><h5>Docs</h5><a href="/react-native-elements/docs/en/getting_started.html">Getting Started</a><a href="/react-native-elements/docs/en/overview.html">Components</a></div><div><h5>Community</h5><a href="https://reactnativetraining.herokuapp.com/" target="_blank">Chat with us on Slack</a><a href="https://github.com/react-native-training/react-native-elements/issues/" target="_blank">Submit a bug or feature</a><a href="https://opencollective.com/react-native-elements" target="_blank">Support us on Open Collective</a></div><div><h5>More</h5><a href="https://github.com/react-native-training/react-native-elements" target="blank">GitHub</a><a class="github-button" href="https://github.com/react-native-training/react-native-elements" data-icon="octicon-star" data-count-href="/facebook/docusaurus/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright-logo-container"><a href="http://reactnative.training" target="_blank"><img src="/react-native-elements/img/react-native-training.png" alt="React Native Training" width="90"/></a></section><section class="copyright">Copyright © 2019 React Native Training</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script> document.addEventListener('keyup', function(e) { if (e.target !== document.body) { return; } // keyCode for '/' (slash) if (e.keyCode === 191) { const search = document.getElementById('search_input_react'); search && search.focus(); } }); </script><script> var search = docsearch({ apiKey: '89e04a9445d16350e100c2d2421f2d39', indexName: 'react_native_elements', inputSelector: '#search_input_react' }); </script></body></html>