<ul>
<li>push/popでViewControllerの画面遷移をつくった</li>
<li>popするときに、ルートのViewControllerに戻れなくなった</li>
</ul>
<p><span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__9f178fd14047b" src="https://embed.zenn.studio/card#zenn-embedded__9f178fd14047b" data-content="https%3A%2F%2Fdeveloper.apple.com%2Fdocumentation%2Fuikit%2Fuinavigationcontroller%2F1621886-popviewcontroller" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://developer.apple.com/documentation/uikit/uinavigationcontroller/1621886-popviewcontroller" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://developer.apple.com/documentation/uikit/uinavigationcontroller/1621886-popviewcontroller</a></p>


<blockquote>
<p>If the view controller at the top of the stack is the root view controller, this method does nothing. In other words, you cannot pop the last item on the stack.</p>
</blockquote>


<p><code>popToRootViewController(animated:)</code> を使うと戻れた</p>
<p><span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__f57d97dece628" src="https://embed.zenn.studio/card#zenn-embedded__f57d97dece628" data-content="https%3A%2F%2Fdeveloper.apple.com%2Fdocumentation%2Fuikit%2Fuinavigationcontroller%2F1621855-poptorootviewcontroller" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://developer.apple.com/documentation/uikit/uinavigationcontroller/1621855-poptorootviewcontroller" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://developer.apple.com/documentation/uikit/uinavigationcontroller/1621855-poptorootviewcontroller</a></p>
