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HTML
43 lines
45 KiB
HTML
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<script src="https://snack.expo.io/embed.js" defer="defer"></script><title data-react-helmet="true">🚧 AlertIOS · React Native</title><meta data-react-helmet="true" name="twitter:image:alt" content="Image for React Native"><meta data-react-helmet="true" name="docsearch:language" content="en"><meta data-react-helmet="true" name="docsearch:version" content="0.63"><meta data-react-helmet="true" name="docsearch:docusaurus_tag" content="docs-default-0.63"><meta data-react-helmet="true" property="og:image" content="https://reactnative.dev/img/logo-og.png"><meta data-react-helmet="true" name="twitter:card" content="summary"><meta data-react-helmet="true" name="twitter:image" content="https://reactnative.dev/img/logo-og.png"><meta data-react-helmet="true" property="og:title" content="🚧 AlertIOS · React Native"><meta data-react-helmet="true" name="description" content="Deprecated. Use Alert instead."><meta data-react-helmet="true" property="og:description" content="Deprecated. Use Alert instead."><meta data-react-helmet="true" property="og:url" content="https://reactnative.dev/docs/alertios"><link data-react-helmet="true" rel="shortcut icon" href="/img/favicon.ico"><link data-react-helmet="true" rel="preconnect" href="https://BH4D9OD16A-dsn.algolia.net" crossorigin="anonymous"><link data-react-helmet="true" rel="canonical" href="https://reactnative.dev/docs/alertios"><link rel="stylesheet" href="/styles.9eb50f2e.css">
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rel="noopener noreferrer" class="menu__link navbar-github-link" aria-label="GitHub repository"></a></li></ul></div></div></div></nav><div class="main-wrapper"><div class="docPage_1mVJ"><main class="docMainContainer_1zi2"><div class="container padding-vert--lg docItemWrapper_1hMI"><div class="row"><div class="col docItemCol_2AGf"><div class="docItemContainer_1tAC"><article><header><h1 class="docTitle_cWlf">🚧 AlertIOS</h1></header><div class="markdown"><blockquote><p><strong>Deprecated.</strong> Use <a href="/docs/alert"><code>Alert</code></a> instead.</p></blockquote><p><code>AlertIOS</code> provides functionality to create an iOS alert dialog with a message or create a prompt for user input.</p><p>Creating an iOS alert:</p><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain">AlertIOS</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">alert</span><span class="token punctuation" style="color:#657b83">(</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Sync Complete'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'All your data are belong to us.'</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"></span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">;</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><p>Creating an iOS prompt:</p><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain">AlertIOS</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">prompt</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'Enter a value'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token keyword" style="color:#c5a5c5">null</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">(</span><span class="token parameter">text</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> console</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">log</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'You entered '</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">+</span><span class="token plain"> text</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"></span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">;</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><p>We recommend using the <a href="/docs/alert"><code>Alert.alert</code></a> method for cross-platform support if you don't need to create iOS-only prompts.</p><hr><h1><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="reference"></a>Reference<a class="hash-link" href="#reference" title="Direct link to heading">#</a></h1><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="methods"></a>Methods<a class="hash-link" href="#methods" title="Direct link to heading">#</a></h2><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="alert"></a><code>alert()</code><a class="hash-link" href="#alert" title="Direct link to heading">#</a></h3><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token keyword" style="color:#c5a5c5">static</span><span class="token plain"> </span><span class="token function" style="color:#79b6f2">alert</span><span class="token punctuation" style="color:#657b83">(</span><span class="token plain">title</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> string</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">message</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> string</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">callbackOrButtons</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">?</span><span class="token punctuation" style="color:#657b83">(</span><span class="token punctuation" style="color:#657b83">(</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"> </span><span class="token keyword" style="color:#c5a5c5">void</span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> ButtonsArray</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">type</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> AlertType</span><span class="token punctuation" style="color:#657b83">)</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">object Object</span><span class="token punctuation" style="color:#657b83">]</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><p>Create and display a popup alert.</p><p><strong>Parameters:</strong></p><table><thead><tr><th>Name</th><th>Type</th><th>Required</th><th>Description</th></tr></thead><tbody><tr><td>title</td><td>string</td><td>Yes</td><td>The dialog's title. Passing null or '' will hide the title.</td></tr><tr><td>message</td><td>string</td><td>No</td><td>An optional message that appears below the dialog's title.</td></tr><tr><td>callbackOrButtons</td><td>?(() => void),<a href="/docs/alertios#buttonsarray">ButtonsArray</a></td><td>No</td><td>This optional argument should be either a single-argument function or an array of buttons. If passed a function, it will be called when the user taps 'OK'. If passed an array of button configurations, each button should include a <code>text</code> key, as well as optional <code>onPress</code> and <code>style</code> keys. <code>style</code> should be one of 'default', 'cancel' or 'destructive'.</td></tr><tr><td>type</td><td><a href="/docs/alertios#alerttype">AlertType</a></td><td>No</td><td>Deprecated, do not use.</td></tr></tbody></table><p>Example with custom buttons:</p><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain">AlertIOS</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">alert</span><span class="token punctuation" style="color:#657b83">(</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Update available'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Keep your app up to date to enjoy the latest features'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">{</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> text</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Cancel'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token function-variable function" style="color:#79b6f2">onPress</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">(</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"> console</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">log</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'Cancel Pressed'</span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> style</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token string" style="color:#8dc891">'cancel'</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">}</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">{</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> text</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Install'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token function-variable function" style="color:#79b6f2">onPress</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">(</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"> console</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">log</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'Install Pressed'</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">}</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">]</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"></span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">;</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><hr><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="prompt"></a><code>prompt()</code><a class="hash-link" href="#prompt" title="Direct link to heading">#</a></h3><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token keyword" style="color:#c5a5c5">static</span><span class="token plain"> </span><span class="token function" style="color:#79b6f2">prompt</span><span class="token punctuation" style="color:#657b83">(</span><span class="token plain">title</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> string</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">message</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> string</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">callbackOrButtons</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">?</span><span class="token punctuation" style="color:#657b83">(</span><span class="token punctuation" style="color:#657b83">(</span><span class="token parameter">text</span><span class="token parameter operator" style="color:#fc929e">:</span><span class="token parameter"> string</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"> </span><span class="token keyword" style="color:#c5a5c5">void</span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> ButtonsArray</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">type</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> AlertType</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">defaultValue</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> string</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">keyboardType</span><span class="token punctuation" style="color:#657b83">]</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> string</span><span class="token punctuation" style="color:#657b83">)</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain">object Object</span><span class="token punctuation" style="color:#657b83">]</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><p>Create and display a prompt to enter some text.</p><p><strong>Parameters:</strong></p><table><thead><tr><th>Name</th><th>Type</th><th>Required</th><th>Description</th></tr></thead><tbody><tr><td>title</td><td>string</td><td>Yes</td><td>The dialog's title.</td></tr><tr><td>message</td><td>string</td><td>No</td><td>An optional message that appears above the text input.</td></tr><tr><td>callbackOrButtons</td><td>?((text: string) => void),<a href="/docs/alertios#buttonsarray">ButtonsArray</a></td><td>No</td><td>This optional argument should be either a single-argument function or an array of buttons. If passed a function, it will be called with the prompt's value when the user taps 'OK'. If passed an array of button configurations, each button should include a <code>text</code> key, as well as optional <code>onPress</code> and <code>style</code> keys (see example). <code>style</code> should be one of 'default', 'cancel' or 'destructive'.</td></tr><tr><td>type</td><td><a href="/docs/alertios#alerttype">AlertType</a></td><td>No</td><td>This configures the text input. One of 'plain-text', 'secure-text' or 'login-password'.</td></tr><tr><td>defaultValue</td><td>string</td><td>No</td><td>The default text in text input.</td></tr><tr><td>keyboardType</td><td>string</td><td>No</td><td>The keyboard type of first text field(if exists). One of 'default', 'email-address', 'numeric', 'phone-pad', 'ascii-capable', 'numbers-and-punctuation', 'url', 'number-pad', 'name-phone-pad', 'decimal-pad', 'twitter' or 'web-search'.</td></tr></tbody></table><p>Example with custom buttons:</p><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain">AlertIOS</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">prompt</span><span class="token punctuation" style="color:#657b83">(</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Enter password'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Enter your password to claim your $1.5B in lottery winnings'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">[</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">{</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> text</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Cancel'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token function-variable function" style="color:#79b6f2">onPress</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">(</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"> console</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">log</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'Cancel Pressed'</span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> style</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token string" style="color:#8dc891">'cancel'</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">}</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">{</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> text</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token string" style="color:#8dc891">'OK'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token function-variable function" style="color:#79b6f2">onPress</span><span class="token operator" style="color:#fc929e">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">(</span><span class="token parameter">password</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> console</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">log</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'OK Pressed, password: '</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">+</span><span class="token plain"> password</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">}</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">]</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'secure-text'</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"></span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">;</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><p>,</p><p>Example with the default button and a custom callback:</p><div class="mdxCodeBlock_1daz"><div class="codeBlockContent_2es_"><div tabindex="0" class="prism-code language-jsx codeBlock_27aQ thin-scrollbar"><div class="codeBlockLines_2rCb" style="color:#FFFFFF;background:#282C34"><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain">AlertIOS</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">prompt</span><span class="token punctuation" style="color:#657b83">(</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'Update username'</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token keyword" style="color:#c5a5c5">null</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token punctuation" style="color:#657b83">(</span><span class="token parameter">text</span><span class="token punctuation" style="color:#657b83">)</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">=></span><span class="token plain"> console</span><span class="token punctuation" style="color:#657b83">.</span><span class="token function" style="color:#79b6f2">log</span><span class="token punctuation" style="color:#657b83">(</span><span class="token string" style="color:#8dc891">'Your username is '</span><span class="token plain"> </span><span class="token operator" style="color:#fc929e">+</span><span class="token plain"> text</span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token keyword" style="color:#c5a5c5">null</span><span class="token punctuation" style="color:#657b83">,</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"> </span><span class="token string" style="color:#8dc891">'default'</span><span class="token plain"></span></div><div class="token-line" style="color:#FFFFFF;background:#282C34"><span class="token plain"></span><span class="token punctuation" style="color:#657b83">)</span><span class="token punctuation" style="color:#657b83">;</span></div></div></div><button type="button" aria-label="Copy code to clipboard" class="copyButton_2bml">Copy</button></div></div><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="type-definitions"></a>Type Definitions<a class="hash-link" href="#type-definitions" title="Direct link to heading">#</a></h2><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="alerttype"></a>AlertType<a class="hash-link" href="#alerttype" title="Direct link to heading">#</a></h3><p>An Alert button type</p><table><thead><tr><th>Type</th></tr></thead><tbody><tr><td>\$Enum</td></tr></tbody></table><p><strong>Constants:</strong></p><table><thead><tr><th>Value</th><th>Description</th></tr></thead><tbody><tr><td>default</td><td>Default alert with no inputs</td></tr><tr><td>plain-text</td><td>Plain text input alert</td></tr><tr><td>secure-text</td><td>Secure text input alert</td></tr><tr><td>login-password</td><td>Login and password alert</td></tr></tbody></table><hr><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="alertbuttonstyle"></a>AlertButtonStyle<a class="hash-link" href="#alertbuttonstyle" title="Direct link to heading">#</a></h3><p>An Alert button style</p><table><thead><tr><th>Type</th></tr></thead><tbody><tr><td>\$Enum</td></tr></tbody></table><p><strong>Constants:</strong></p><table><thead><tr><th>Value</th><th>Description</th></tr></thead><tbody><tr><td>default</td><td>Default button style</td></tr><tr><td>cancel</td><td>Cancel button style</td></tr><tr><td>destructive</td><td>Destructive button style</td></tr></tbody></table><hr><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_E4oP" id="buttonsarray"></a>ButtonsArray<a class="hash-link" href="#buttonsarray" title="Direct link to heading">#</a></h3><p>Array or buttons</p><table><thead><tr><th>Type</th></tr></thead><tbody><tr><td>Array</td></tr></tbody></table><p><strong>Properties:</strong></p><table><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td>[text]</td><td>string</td><td>Button label</td></tr><tr><td>[onPress]</td><td>function</td><td>Callback function when button pressed</td></tr><tr><td>[style]</td><td><a href="/docs/alertios#alertbuttonstyle">AlertButtonStyle</a></td><td>Button style</td></tr></tbody></table><p><strong>Constants:</strong></p><table><thead><tr><th>Value</th><th>Description</th></tr></thead><tbody><tr><td>text</td><td>Button label</td></tr><tr><td>onPress</td><td>Callback function when button pressed</td></tr><tr><td>style</td><td>Button style</td></tr></tbody></table></div></article><div class="docMetadata margin-vert--xl"><div class="row"><div class="col"><a href="https://github.com/facebook/react-native-website/blob/master/website/versioned_docs/version-0.63/alertios.md" target="_blank" rel="noreferrer noopener"><svg fill="currentColor" height="1.2em" width="1.2em" preserveAspectRatio="xMidYMid meet" role="img" viewBox="0 0 40 40" class="iconEdit_2Hwv"><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"></path></g></svg>Edit this page</a></div><div class="col text--right"><em><small class="docMetadata-updated">Last updated on <time datetime="2020-10-29T04:19:29.000Z" class="docLastUpdatedAt_1gIo">10/29/2020</time></small></em></div></div></div><div class="margin-vert--lg"><nav class="pagination-nav" aria-label="Blog list page navigation"><div class="pagination-nav__item"></div><div class="pagination-nav__item pagination-nav__item--next"></div></nav></div></div></div><div class="col col--3"><div class="tableOfContents_1zTD thin-scrollbar"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#methods" class="table-of-contents__link">Methods</a><ul><li><a href="#alert" class="table-of-contents__link"><code>alert()</code></a></li><li><a href="#prompt" class="table-of-contents__link"><code>prompt()</code></a></li></ul></li><li><a href="#type-definitions" class="table-of-contents__link">Type Definitions</a><ul><li><a href="#alerttype" class="table-of-contents__link">AlertType</a></li><li><a href="#alertbuttonstyle" class="table-of-contents__link">AlertButtonStyle</a></li><li><a href="#buttonsarray" class="table-of-contents__link">ButtonsArray</a></li></ul></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container"><div class="row footer__links"><div 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