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<h1><span class="kind-method">resolveLocale</span> method
<a href="https://dart.dev/null-safety" class="feature feature-null-safety" title="Supports the null safety language feature.">Null safety</a>
</h1></div>
<section class="multi-line-signature">
<span class="returntype"><a href="https://api.flutter.dev/flutter/dart-ui/Locale-class.html">Locale</a></span>
<span class="name ">resolveLocale</span>(<wbr><ol class="parameter-list"><li><span class="parameter" id="resolveLocale-param-preferredLocales"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/List-class.html">List</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="https://api.flutter.dev/flutter/dart-ui/Locale-class.html">Locale</a></span>&gt;</span>?</span> <span class="parameter-name">preferredLocales</span>, </span></li>
<li><span class="parameter" id="resolveLocale-param-supportedLocales"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/Iterable-class.html">Iterable</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="https://api.flutter.dev/flutter/dart-ui/Locale-class.html">Locale</a></span>&gt;</span></span> <span class="parameter-name">supportedLocales</span></span></li>
</ol>)
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<section class="summary source-code" id="source">
<h2><span>Implementation</span></h2>
<pre class="language-dart"><code class="language-dart">static Locale resolveLocale(List&lt;Locale&gt;? preferredLocales, Iterable&lt;Locale&gt; supportedLocales) {
for (final locale in preferredLocales ?? const &lt;Locale&gt;[]) {
&#47;&#47; Check if the current device locale is supported
for (final supportedLocale in supportedLocales) {
if (supportedLocale.languageCode == locale.languageCode) {
return supportedLocale;
}
}
}
return supportedLocales.first;
}</code></pre>
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<h5>AppSetup class</h5>
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