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markdown"><header><h1>DevSettings</h1></header><p>The <code>DevSettings</code> module exposes methods for customizing settings for developers in development.</p>
5<hr>
6<h1>Reference</h1>
7<h2 class="anchor anchorWithStickyNavbar_JmGV" id=methods>Methods<a href=#methods class=hash-link aria-label="Direct link to Methods" title="Direct link to Methods"></a></h2>
8<h3 class="anchor anchorWithStickyNavbar_JmGV" id=addmenuitem><code>addMenuItem()</code><a href=#addmenuitem class=hash-link aria-label="Direct link to addmenuitem" title="Direct link to addmenuitem"></a></h3>
9<div class="language-tsx codeBlockContainer_mQmQ theme-code-block" style=--prism-color:#FFFFFF;--prism-background-color:#282C34><div class=codeBlockTitle_kY6l>tsx</div><div class=codeBlockContent_t_Hd><pre tabindex=0 class="prism-code language-tsx codeBlock_RMoD thin-scrollbar" style=color:#FFFFFF;background-color:#282C34><code class=codeBlockLines_AclH><span class=token-line style=color:#FFFFFF><span class="token keyword" style=color:#c5a5c5>static</span><span class="token plain"> </span><span class="token function" style=color:#79b6f2>addMenuItem</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"> </span><span class="token builtin" style=color:#2aa198>string</span><span class="token punctuation" style=color:#657b83>,</span><span class="token plain"> </span><span class="token function-variable function" style=color:#79b6f2>handler</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 arrow operator" style=color:#fc929e>=></span><span class="token plain"> </span><span class="token builtin" style=color:#2aa198>any</span><span class="token punctuation" style=color:#657b83>)</span><span class="token punctuation" style=color:#657b83>;</span><br></span></code></pre></div></div>
10<p>Add a custom menu item to the Dev Menu.</p>
11<p><strong>Parameters:</strong></p>
12<table><thead><tr><th>Name<th>Type<tbody><tr><td>title <div class="label basic required">Required</div><td>string<tr><td>handler <div class="label basic required">Required</div><td>function</table>
13<p><strong>Example:</strong></p>
14<div class="language-tsx codeBlockContainer_mQmQ theme-code-block" style=--prism-color:#FFFFFF;--prism-background-color:#282C34><div class=codeBlockTitle_kY6l>tsx</div><div class=codeBlockContent_t_Hd><pre tabindex=0 class="prism-code language-tsx codeBlock_RMoD thin-scrollbar" style=color:#FFFFFF;background-color:#282C34><code class=codeBlockLines_AclH><span class=token-line style=color:#FFFFFF><span class="token maybe-class-name">DevSettings</span><span class="token punctuation" style=color:#657b83>.</span><span class="token method function property-access" style=color:#79b6f2>addMenuItem</span><span class="token punctuation" style=color:#657b83>(</span><span class="token string" style=color:#8dc891>'Show Secret Dev Screen'</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 punctuation" style=color:#657b83>)</span><span class="token plain"> </span><span class="token arrow operator" style=color:#fc929e>=></span><span class="token plain"> </span><span class="token punctuation" style=color:#657b83>{</span><span class="token plain"></span><br></span><span class=token-line style=color:#FFFFFF><span class="token plain"> </span><span class="token maybe-class-name">Alert</span><span class="token punctuation" style=color:#657b83>.</span><span class="token method function property-access" style=color:#79b6f2>alert</span><span class="token punctuation" style=color:#657b83>(</span><span class="token string" style=color:#8dc891>'Showing secret dev screen!'</span><span class="token punctuation" style=color:#657b83>)</span><span class="token punctuation" style=color:#657b83>;</span><span class="token plain"></span><br></span><span class=token-line style=color:#FFFFFF><span class="token plain"></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><br></span></code></pre></div></div>
15<hr>
16<h3 class="anchor anchorWithStickyNavbar_JmGV" id=reload><code>reload()</code><a href=#reload class=hash-link aria-label="Direct link to reload" title="Direct link to reload"></a></h3>
17<div class="language-tsx codeBlockContainer_mQmQ theme-code-block" style=--prism-color:#FFFFFF;--prism-background-color:#282C34><div class=codeBlockTitle_kY6l>tsx</div><div class=codeBlockContent_t_Hd><pre tabindex=0 class="prism-code language-tsx codeBlock_RMoD thin-scrollbar" style=color:#FFFFFF;background-color:#282C34><code class=codeBlockLines_AclH><span class=token-line style=color:#FFFFFF><span class="token keyword" style=color:#c5a5c5>static</span><span class="token plain"> </span><span class="token function" style=color:#79b6f2>reload</span><span class="token punctuation" style=color:#657b83>(</span><span class="token plain">reason</span><span class="token operator" style=color:#fc929e>?</span><span class="token operator" style=color:#fc929e>:</span><span class="token plain"> </span><span class="token builtin" style=color:#2aa198>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 keyword" style=color:#c5a5c5>void</span><span class="token punctuation" style=color:#657b83>;</span><br></span></code></pre></div></div>
18<p>Reload the application. Can be invoked directly or on user interaction.</p>
19<p><strong>Example:</strong></p>
20<div class="language-tsx codeBlockContainer_mQmQ theme-code-block" style=--prism-color:#FFFFFF;--prism-background-color:#282C34><div class=codeBlockTitle_kY6l>tsx</div><div class=codeBlockContent_t_Hd><pre tabindex=0 class="prism-code language-tsx codeBlock_RMoD thin-scrollbar" style=color:#FFFFFF;background-color:#282C34><code class=codeBlockLines_AclH><span class=token-line style=color:#FFFFFF><span class="token tag punctuation" style=color:#657b83><</span><span class="token tag class-name" style=color:#fac863>Button</span><span class="token tag" style=color:#fc929e> </span><span class="token tag attr-name" style=color:#c5a5c5>title</span><span class="token tag attr-value punctuation attr-equals" style=color:#657b83>=</span><span class="token tag attr-value punctuation" style=color:#657b83>"</span><span class="token tag attr-value" style=color:#8dc891>Reload</span><span class="token tag attr-value punctuation" style=color:#657b83>"</span><span class="token tag" style=color:#fc929e> </span><span class="token tag attr-name" style=color:#c5a5c5>onPress</span><span class="token tag script language-javascript script-punctuation punctuation" style=color:#657b83>=</span><span class="token tag script language-javascript punctuation" style=color:#657b83>{</span><span class="token tag script language-javascript punctuation" style=color:#657b83>(</span><span class="token tag script language-javascript punctuation" style=color:#657b83>)</span><span class="token tag script language-javascript" style=color:#fc929e> </span><span class="token tag script language-javascript arrow operator" style=color:#fc929e>=></span><span class="token tag script language-javascript" style=color:#fc929e> </span><span class="token tag script language-javascript maybe-class-name" style=color:#fc929e>DevSettings</span><span class="token tag script language-javascript punctuation" style=color:#657b83>.</span><span class="token tag script language-javascript method function property-access" style=color:#79b6f2>reload</span><span class="token tag script language-javascript punctuation" style=color:#657b83>(</span><span class="token tag script language-javascript punctuation" style=color:#657b83>)</span><span class="token tag script language-javascript punctuation" style=color:#657b83>}</span><span class="token tag" style=color:#fc929e> </span><span class="token tag punctuation" style=color:#657b83>/></span><br></span></code></pre></div></div></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/devsettings.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 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