this repo has no description
kitten.sh
1<!doctype html><html lang=en dir=ltr class="docs-wrapper plugin-docs plugin-id-default docs-version-0.79 docs-doc-page docs-doc-id-app-extensions" data-has-hydrated=false><meta charset=UTF-8><meta name=generator content="Docusaurus v3.8.0"><title data-rh=true>App Extensions · React Native</title><meta data-rh=true name=viewport content="width=device-width, initial-scale=1.0"><meta data-rh=true property=og:url content=https://reactnative.dev/docs/app-extensions><meta data-rh=true property=og:locale content=en><meta data-rh=true name=docusaurus_locale content=en><meta data-rh=true name=docsearch:language content=en><meta data-rh=true property=og:image content=https://reactnative.dev/img/logo-share.png><meta data-rh=true name=twitter:card content=summary_large_image><meta data-rh=true name=twitter:image content=https://reactnative.dev/img/logo-share.png><meta data-rh=true name=twitter:site content=@reactnative><meta data-rh=true name=docusaurus_version content=0.79><meta data-rh=true name=docusaurus_tag content=docs-default-0.79><meta data-rh=true name=docsearch:version content=0.79><meta data-rh=true name=docsearch:docusaurus_tag content=docs-default-0.79><meta data-rh=true property=og:title content="App Extensions · React Native"><meta data-rh=true name=description content="App extensions let you provide custom functionality and content outside of your main app. There are different types of app extensions on iOS, and they are all covered in the App Extension Programming Guide. In this guide, we'll briefly cover how you may take advantage of app extensions on iOS."><meta data-rh=true property=og:description content="App extensions let you provide custom functionality and content outside of your main app. There are different types of app extensions on iOS, and they are all covered in the App Extension Programming Guide. In this guide, we'll briefly cover how you may take advantage of app extensions on iOS."><link data-rh=true rel=icon href=/img/favicon.ico><link data-rh=true rel=canonical href=https://reactnative.dev/docs/app-extensions><link data-rh=true rel=alternate href=https://reactnative.dev/docs/app-extensions hreflang=en><link data-rh=true rel=alternate href=https://reactnative.dev/docs/app-extensions hreflang=x-default><link data-rh=true rel=preconnect href=https://8TDSE0OHGQ-dsn.algolia.net crossorigin=anonymous><link rel=alternate type=application/rss+xml href=/blog/rss.xml title="React Native RSS Feed"><link rel=alternate type=application/atom+xml href=/blog/atom.xml title="React Native Atom Feed"><link rel=alternate type=application/json href=/blog/feed.json title="React Native JSON Feed"><link rel=preconnect href=https://www.google-analytics.com><script>window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)},ga.l=+new Date,ga("create","UA-41298772-2","auto"),ga("send","pageview")</script><script async src=https://www.google-analytics.com/analytics.js></script><link rel=preconnect href=https://www.google-analytics.com><link rel=preconnect href=https://www.googletagmanager.com><script async src="https://www.googletagmanager.com/gtag/js?id=G-58L13S6BDP"></script><script>function gtag(){dataLayer.push(arguments)}window.dataLayer=window.dataLayer||[],gtag("js",new Date),gtag("config","G-58L13S6BDP",{})</script><link rel=search type=application/opensearchdescription+xml title="React Native" href=/opensearch.xml><link rel=icon href=/img/pwa/manifest-icon-512.png><link rel=manifest href=/manifest.json><meta name=theme-color content=#20232a><meta name=apple-mobile-web-app-capable content=yes><meta name=apple-mobile-web-app-status-bar-style content=#20232a><link rel=apple-touch-icon href=/img/pwa/manifest-icon-512.png><link rel=mask-icon href=/img/pwa/manifest-icon-512.png color=#06bcee><meta name=msapplication-TileImage href=/img/pwa/manifest-icon-512.png><meta name=msapplication-TileColor content=#20232a><script src=https://cdn.jsdelivr.net/npm/focus-visible@5.2.0/dist/focus-visible.min.js defer></script><script src=https://widget.surveymonkey.com/collect/website/js/tRaiETqnLgj758hTBazgd8ryO5qrZo8Exadq9qmt1wtm4_2FdZGEAKHDFEt_2BBlwwM4.js defer></script><script src=https://snack.expo.dev/embed.js defer></script><script src=https://platform.twitter.com/widgets.js async></script><link rel=stylesheet href=/assets/css/styles.883cb042.css><script src=/assets/js/runtime~main.8ac1e6f0.js defer></script><script src=/assets/js/main.341783f5.js defer></script><body class=navigation-with-keyboard><svg xmlns=http://www.w3.org/2000/svg style="display: none;"><defs>
2<symbol id=theme-svg-external-link viewBox="0 0 24 24"><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></symbol>
3</defs></svg>
4<script>!function(){var t=function(){try{return new URLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}}()||function(){try{return window.localStorage.getItem("theme")}catch(t){}}();document.documentElement.setAttribute("data-theme",t||(window.matchMedia("(prefers-color-scheme: dark)").matches?"dark":"light")),document.documentElement.setAttribute("data-theme-choice",t||"system")}(),function(){try{for(var[t,e]of new URLSearchParams(window.location.search).entries())if(t.startsWith("docusaurus-data-")){var a=t.replace("docusaurus-data-","data-");document.documentElement.setAttribute(a,e)}}catch(t){}}(),document.documentElement.setAttribute("data-announcement-bar-initially-dismissed",function(){try{return"true"===localStorage.getItem("docusaurus.announcement.dismiss")}catch(t){}return!1}())</script><div id=__docusaurus><div role=region aria-label="Skip to main content"><a class=skipToContent_oPtH href=#__docusaurus_skipToContent_fallback>Skip to main content</a></div><div class="theme-announcement-bar announcementBar_zJRd" style=background-color:#20232a;color:#fff role=banner><div class="content_bSb_ announcementBarContent_t7IR">Join us for React Conf on Oct 7-8. <a target=_blank rel="noopener noreferrer" href=https://conf.react.dev>Learn more</a>.</div></div><nav aria-label=Main class="theme-layout-navbar navbar navbar--fixed-top navbar--dark"><div class=navbar__inner><div class="theme-layout-navbar-left navbar__items"><button aria-label="Toggle navigation bar" aria-expanded=false class="navbar__toggle clean-btn" type=button><svg width=30 height=30 viewBox="0 0 30 30" aria-hidden=true><path stroke=currentColor stroke-linecap=round stroke-miterlimit=10 stroke-width=2 d="M4 7h22M4 15h22M4 23h22"/></svg></button><a class=navbar__brand href=/><div class=navbar__logo><img src=/img/header_logo.svg alt="React Native" class="themedComponent_siVc themedComponent--light_hHel"><img src=/img/header_logo.svg alt="React Native" class="themedComponent_siVc themedComponent--dark_yETr"></div><b class="navbar__title text--truncate">React Native</b></a><div class="navbar__item dropdown dropdown--hoverable"><a class=navbar__link aria-haspopup=true aria-expanded=false role=button href=/docs/app-extensions>0.79</a><ul class=dropdown__menu><li><a class=dropdown__link href=/docs/next/app-extensions>Next</a><li><a aria-current=page class="dropdown__link dropdown__link--active" href=/docs/app-extensions>0.79</a><li><a class=dropdown__link href=/docs/0.78/app-extensions>0.78</a><li><a class=dropdown__link href=/docs/0.77/app-extensions>0.77</a><li><a class=dropdown__link href=/docs/0.76/app-extensions>0.76</a><li><a class=dropdown__link href=/docs/0.75/app-extensions>0.75</a><li><a class=dropdown__link href=/docs/0.74/app-extensions>0.74</a><li><a class=dropdown__link href=/docs/0.73/app-extensions>0.73</a><li><a class=dropdown__link href=/docs/0.72/app-extensions>0.72</a><li><a class=dropdown__link href=/docs/0.71/app-extensions>0.71</a><li><a class=dropdown__link href=/docs/0.70/app-extensions>0.70</a><li><a class=dropdown__link href=/versions>All versions</a></ul></div></div><div class="theme-layout-navbar-right navbar__items navbar__items--right"><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a href=# aria-haspopup=true aria-expanded=false role=button class=navbar__link>Development</a><ul class=dropdown__menu><li><a aria-current=page class="dropdown__link dropdown__link--active" href=/docs/getting-started>Guides</a><li><a class=dropdown__link href=/docs/components-and-apis>Components</a><li><a class=dropdown__link href=/docs/accessibilityinfo>APIs</a><li><a class=dropdown__link href=/architecture/overview>Architecture</a></ul></div><a class="navbar__item navbar__link" href=/contributing/overview>Contributing</a><a class="navbar__item navbar__link" href=/community/overview>Community</a><a class="navbar__item navbar__link" href=/showcase>Showcase</a><a class="navbar__item navbar__link" href=/blog>Blog</a><a href=https://github.com/facebook/react-native target=_blank rel="noopener noreferrer" class="navbar__item navbar__link navbar-github-link" aria-label="GitHub repository"></a><div class="toggle_ki11 colorModeToggle_Hewu"><button class="clean-btn toggleButton_MMFG toggleButtonDisabled_Uw7m darkNavbarColorModeToggle_m8pZ" type=button disabled title="system mode" aria-label="Switch between dark and light mode (currently system mode)"><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_k9hJ lightToggleIcon_lgto"><path fill=currentColor d="M12,9c1.65,0,3,1.35,3,3s-1.35,3-3,3s-3-1.35-3-3S10.35,9,12,9 M12,7c-2.76,0-5,2.24-5,5s2.24,5,5,5s5-2.24,5-5 S14.76,7,12,7L12,7z M2,13l2,0c0.55,0,1-0.45,1-1s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S1.45,13,2,13z M20,13l2,0c0.55,0,1-0.45,1-1 s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S19.45,13,20,13z M11,2v2c0,0.55,0.45,1,1,1s1-0.45,1-1V2c0-0.55-0.45-1-1-1S11,1.45,11,2z M11,20v2c0,0.55,0.45,1,1,1s1-0.45,1-1v-2c0-0.55-0.45-1-1-1C11.45,19,11,19.45,11,20z M5.99,4.58c-0.39-0.39-1.03-0.39-1.41,0 c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0s0.39-1.03,0-1.41L5.99,4.58z M18.36,16.95 c-0.39-0.39-1.03-0.39-1.41,0c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0c0.39-0.39,0.39-1.03,0-1.41 L18.36,16.95z M19.42,5.99c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06c-0.39,0.39-0.39,1.03,0,1.41 s1.03,0.39,1.41,0L19.42,5.99z M7.05,18.36c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06 c-0.39,0.39-0.39,1.03,0,1.41s1.03,0.39,1.41,0L7.05,18.36z"/></svg><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_k9hJ darkToggleIcon_U96C"><path fill=currentColor d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z M12,3c-4.97,0-9,4.03-9,9s4.03,9,9,9s9-4.03,9-9c0-0.46-0.04-0.92-0.1-1.36 c-0.98,1.37-2.58,2.26-4.4,2.26c-2.98,0-5.4-2.42-5.4-5.4c0-1.81,0.89-3.42,2.26-4.4C12.92,3.04,12.46,3,12,3L12,3z"/></svg><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_k9hJ systemToggleIcon_E5c0"><path fill=currentColor d="m12 21c4.971 0 9-4.029 9-9s-4.029-9-9-9-9 4.029-9 9 4.029 9 9 9zm4.95-13.95c1.313 1.313 2.05 3.093 2.05 4.95s-0.738 3.637-2.05 4.95c-1.313 1.313-3.093 2.05-4.95 2.05v-14c1.857 0 3.637 0.737 4.95 2.05z"/></svg></button></div><div class=navbarSearchContainer_bzqh><button type=button class="DocSearch DocSearch-Button" aria-label="Search (Command+K)"><span class=DocSearch-Button-Container><svg width=20 height=20 class=DocSearch-Search-Icon viewBox="0 0 20 20" aria-hidden=true><path d="M14.386 14.386l4.0877 4.0877-4.0877-4.0877c-2.9418 2.9419-7.7115 2.9419-10.6533 0-2.9419-2.9418-2.9419-7.7115 0-10.6533 2.9418-2.9419 7.7115-2.9419 10.6533 0 2.9419 2.9418 2.9419 7.7115 0 10.6533z" stroke=currentColor fill=none fill-rule=evenodd stroke-linecap=round stroke-linejoin=round /></svg><span class=DocSearch-Button-Placeholder>Search</span></span><span class=DocSearch-Button-Keys></span></button></div></div></div><div role=presentation class=navbar-sidebar__backdrop></div></nav><div id=__docusaurus_skipToContent_fallback class="theme-layout-main main-wrapper mainWrapper_MB5r"><div class=docsWrapper__sE8><button aria-label="Scroll back to top" class="clean-btn theme-back-to-top-button backToTopButton_iEvu" type=button></button><div class=docRoot_DfVB><aside class="theme-doc-sidebar-container docSidebarContainer_c7NB"><div class=sidebarViewport_KYo0><div class=sidebar_CUen><nav aria-label="Docs sidebar" class="menu thin-scrollbar menu_jmj1 menuWithAnnouncementBar_YufC"><ul class="theme-doc-sidebar-menu menu__list"><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/getting-started>The Basics</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/environment-setup>Environment setup</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/running-on-device>Workflow</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/style>UI & Interaction</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/debugging>Debugging</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/testing-overview>Testing</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/performance>Performance</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/javascript-environment>JavaScript Runtime</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/the-new-architecture/what-is-codegen>Codegen</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/native-platform>Native Development</a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret menu__link--active" role=button aria-expanded=true href=/docs/headless-js-android>Android and iOS guides</a></div><ul class=menu__list><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item"><div class=menu__list-item-collapsible><a class=menu__link tabindex=0>Android</a></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/headless-js-android>Headless JS</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/signed-apk-android>Publishing to Google Play Store</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/communication-android>Communication between native and React Native</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/react-native-gradle-plugin>React Native Gradle Plugin</a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item"><div class=menu__list-item-collapsible><a class="menu__link menu__link--active" tabindex=0>iOS</a></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/linking-libraries-ios>Linking Libraries</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/running-on-simulator-ios>Running On Simulator</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/communication-ios>Communication between native and React Native</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class="menu__link menu__link--active" aria-current=page tabindex=0 href=/docs/app-extensions>App Extensions</a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/publishing-to-app-store>Publishing to Apple App Store</a></ul></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/legacy/native-modules-intro>Legacy Architecture</a></div></ul></nav></div></div></aside><main class=docMainContainer_a9sJ><div class="container padding-top--md padding-bottom--lg"><div class=row><div class="col docItemCol_Qr34"><div class=docItemContainer_tjFy><article><div class="tocCollapsible_wXna theme-doc-toc-mobile tocMobile_Ojys"><button type=button class="clean-btn tocCollapsibleButton_iI2p">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>App Extensions</h1></header><p>App extensions let you provide custom functionality and content outside of your main app. There are different types of app extensions on iOS, and they are all covered in the <a href=https://developer.apple.com/library/content/documentation/General/Conceptual/ExtensibilityPG/index.html#//apple_ref/doc/uid/TP40014214-CH20-SW1 target=_blank rel="noopener noreferrer">App Extension Programming Guide</a>. In this guide, we'll briefly cover how you may take advantage of app extensions on iOS.</p>
5<h2 class="anchor anchorWithStickyNavbar_JmGV" id=memory-use-in-extensions>Memory use in extensions<a href=#memory-use-in-extensions class=hash-link aria-label="Direct link to Memory use in extensions" title="Direct link to Memory use in extensions"></a></h2>
6<p>As these extensions are loaded outside of the regular app sandbox, it's highly likely that several of these app extensions will be loaded simultaneously. As you might expect, these extensions have small memory usage limits. Keep these in mind when developing your app extensions. It's always highly recommended to test your application on an actual device, and more so when developing app extensions: too frequently, developers find that their extension works fine in the iOS Simulator, only to get user reports that their extension is not loading on actual devices.</p>
7<p>We highly recommend that you watch Conrad Kramer's talk on <a href="https://www.youtube.com/watch?v=GqXMqn6MXrM" target=_blank rel="noopener noreferrer">Memory Use in Extensions</a> to learn more about this topic.</p>
8<h3 class="anchor anchorWithStickyNavbar_JmGV" id=today-widget>Today widget<a href=#today-widget class=hash-link aria-label="Direct link to Today widget" title="Direct link to Today widget"></a></h3>
9<p>The memory limit of a Today widget is 16 MB. As it happens, Today widget implementations using React Native may work unreliably because the memory usage tends to be too high. You can tell if your Today widget is exceeding the memory limit if it yields the message 'Unable to Load':</p>
10<p><img decoding=async loading=lazy src=/assets/images/TodayWidgetUnableToLoad-b931f8be6eeb72c037338b9ab9766477.jpg width=1242 height=497 class=img_SS3x></p>
11<p>Always make sure to test your app extensions in a real device, but be aware that this may not be sufficient, especially when dealing with Today widgets. Debug-configured builds are more likely to exceed the memory limits, while release-configured builds don't fail right away. We highly recommend that you use <a href=https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/InstrumentsUserGuide/index.html target=_blank rel="noopener noreferrer">Xcode's Instruments</a> to analyze your real world memory usage, as it's very likely that your release-configured build is very close to the 16 MB limit. In situations like these, you can quickly go over the 16 MB limit by performing common operations, such as fetching data from an API.</p>
12<p>To experiment with the limits of React Native Today widget implementations, try extending the example project in <a href=https://github.com/matejkriz/react-native-today-widget/ target=_blank rel="noopener noreferrer">react-native-today-widget</a>.</p>
13<h3 class="anchor anchorWithStickyNavbar_JmGV" id=other-app-extensions>Other app extensions<a href=#other-app-extensions class=hash-link aria-label="Direct link to Other app extensions" title="Direct link to Other app extensions"></a></h3>
14<p>Other types of app extensions have greater memory limits than the Today widget. For instance, Custom Keyboard extensions are limited to 48 MB, and Share extensions are limited to 120 MB. Implementing such app extensions with React Native is more viable. One proof of concept example is <a href=https://github.com/andrewsardone/react-native-ios-share-extension target=_blank rel="noopener noreferrer">react-native-ios-share-extension</a>.</div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class=editButtons_t0bR><a href=https://github.com/facebook/react-native-website/edit/main/docs/app-extensions.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" class=iconEdit_bHB7 aria-hidden=true><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"/></g></svg>Edit page for next release</a><a href=https://github.com/facebook/react-native-website/edit/main/website/versioned_docs/version-0.79/app-extensions.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" class=iconEdit_bHB7 aria-hidden=true><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"/></g></svg>Edit page for current release</a></div><div class=lastUpdated_VsjB><span class=theme-last-updated>Last updated<!-- --> on <b><time datetime=2025-04-14T14:14:17.000Z itemprop=dateModified>Apr 14, 2025</time></b></span></div></div></footer></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href=/docs/communication-ios><div class=pagination-nav__sublabel>Previous</div><div class=pagination-nav__label>Communication between native and React Native</div></a><a class="pagination-nav__link pagination-nav__link--next" href=/docs/publishing-to-app-store><div class=pagination-nav__sublabel>Next</div><div class=pagination-nav__label>Publishing to Apple App Store</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_XG6w thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href=#memory-use-in-extensions class="table-of-contents__link toc-highlight">Memory use in extensions</a><ul><li><a href=#today-widget class="table-of-contents__link toc-highlight">Today widget</a><li><a href=#other-app-extensions class="table-of-contents__link toc-highlight">Other app extensions</a></ul></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Develop</div><ul class="footer__items clean-list"><li class=footer__item><a class=footer__link-item href=/docs/getting-started>Guides</a><li class=footer__item><a class=footer__link-item href=/docs/components-and-apis>Components</a><li class=footer__item><a class=footer__link-item href=/docs/accessibilityinfo>APIs</a><li class=footer__item><a class=footer__link-item href=/architecture/overview>Architecture</a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Participate</div><ul class="footer__items clean-list"><li class=footer__item><a class=footer__link-item href=/showcase>Showcase</a><li class=footer__item><a class=footer__link-item href=/contributing/overview>Contributing</a><li class=footer__item><a class=footer__link-item href=/community/overview>Community</a><li class=footer__item><a href=https://reactnative.directory/ target=_blank rel="noopener noreferrer" class=footer__link-item>Directory<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a><li class=footer__item><a href=https://stackoverflow.com/questions/tagged/react-native target=_blank rel="noopener noreferrer" class=footer__link-item>Stack Overflow<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Find us</div><ul class="footer__items clean-list"><li class=footer__item><a class=footer__link-item href=/blog>Blog</a><li class=footer__item><a href=https://x.com/reactnative target=_blank rel="noopener noreferrer" class=footer__link-item>X<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a><li class=footer__item><a href=https://bsky.app/profile/reactnative.dev target=_blank rel="noopener noreferrer" class=footer__link-item>Bluesky<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a><li class=footer__item><a href=https://github.com/facebook/react-native target=_blank rel="noopener noreferrer" class=footer__link-item>GitHub<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Explore More</div><ul class="footer__items clean-list"><li class=footer__item><a href=https://react.dev/ target=_blank rel="noopener noreferrer" class=footer__link-item>ReactJS<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a><li class=footer__item><a href=https://opensource.fb.com/legal/privacy/ target=_blank rel="noopener noreferrer" class=footer__link-item>Privacy Policy<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a><li class=footer__item><a href=https://opensource.fb.com/legal/terms/ target=_blank rel="noopener noreferrer" class=footer__link-item>Terms of Service<svg width=13.5 height=13.5 aria-hidden=true viewBox="0 0 24 24" class=iconExternalLink_2l9O><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></svg></a></ul></div></div><div class="footer__bottom text--center"><div class=margin-bottom--sm><a href=https://opensource.fb.com/ rel="noopener noreferrer" class=footerLogoLink_tutC><img src=/img/oss_logo.svg alt="Meta Open Source Logo" class="footer__logo themedComponent_siVc themedComponent--light_hHel"><img src=/img/oss_logo.svg alt="Meta Open Source Logo" class="footer__logo themedComponent_siVc themedComponent--dark_yETr"></a></div><div class=footer__copyright>Copyright © 2025 Meta Platforms, Inc.</div></div></div></footer></div>