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itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="主页面" class="breadcrumbs__link" href="/cocos-enhance-kit/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_kU5B"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">使用指南</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">多线程支持</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本：2.0.0</span><div class="tocCollapsible_bZGK theme-doc-toc-mobile tocMobile_TmEX"><button type="button" class="clean-btn tocCollapsibleButton_l22C">本页总览</button></div><div class="theme-doc-markdown markdown"><h1>多线程支持</h1><div class="admonition admonition-caution alert alert--warning"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M8.893 1.5c-.183-.31-.52-.5-.887-.5s-.703.19-.886.5L.138 13.499a.98.98 0 0 0 0 1.001c.193.31.53.501.886.501h13.964c.367 0 .704-.19.877-.5a1.03 1.03 0 0 0 .01-1.002L8.893 1.5zm.133 11.497H6.987v-2.003h2.039v2.003zm0-3.004H6.987V5.987h2.039v4.006z"></path></svg></span>注意</h5></div><div class="admonition-content"><p>以下所有多线程特性暂时仅适用于微信小游戏平台。</p></div></div><p>社区版为引擎的部分系统增加了多线程支持，启用后可以释放其对主线程的占用，减少卡顿现象。</p><p>你可以在社区版的设置面板启用多线程支持：</p><p><img loading="lazy" alt="thread-settings" src="/cocos-enhance-kit/assets/images/thread-settings-db7938f60a4ef88a3c244e23aef57afe.png" width="1102" height="1384" class="img_E7b_"></p><h2 class="anchor anchorWithStickyNavbar_mojV" id="使用代码调整设置">使用代码调整设置<a class="hash-link" href="#使用代码调整设置" title="标题的直接链接"></a></h2><p>你可以使用 <a href="https://docs.cocos.com/creator/2.4/manual/zh/publish/custom-project-build-template.html" target="_blank" rel="noopener noreferrer">构建模板</a> 在 <code>game.js</code> 的 <code>__globalAdapter.init();</code> 语句执行之前声明宏来调整设置：</p><ul><li>CC_WORKER_ASSET_PIPELINE（是否启用 Worker 驱动资源管线）</li><li>CC_WORKER_AUDIO_SYSTEM（是否启用 Worker 驱动音频系统）</li><li>CC_WORKER_DEBUG（是否启用 Worker 调试模式）</li></ul><p>例如这样：</p><div class="language-js codeBlockContainer_MPoW theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_B9tL"><pre tabindex="0" class="prism-code language-js codeBlock__0OG thin-scrollbar"><code class="codeBlockLines_gEuF"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic">// game.js</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token function" style="color:#d73a49">require</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">'adapter-js-path'</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic">// --- 在 init 执行之前设置 ---</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">globalThis</span><span class="token punctuation" style="color:#393A34">.</span><span class="token constant" style="color:#36acaa">CC_WORKER_ASSET_PIPELINE</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> isAndroid</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic">// --------------------------</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">__globalAdapter</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">init</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><br></span></code></pre><div class="buttonGroup_hRr1"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_W9eQ" aria-hidden="true"><svg class="copyButtonIcon_XEyF" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_i9w9" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>当 <code>init</code> 执行之后，由于引擎已经初始化完毕，就不能再对设置进行修改了。</p><h2 class="anchor anchorWithStickyNavbar_mojV" id="注意事项">注意事项<a class="hash-link" href="#注意事项" title="标题的直接链接"></a></h2><p>当你重启编辑器，或者启用/禁用多线程支持时，可能出现以下几种情况：</p><p><strong>禁用多线程支持时输出的包体大小警告：</strong></p><p>由于要实现多线程支持，社区版在包体内增加了一个 <code>workers</code> 目录，用于存放 Worker 线程的代码。</p><p>大小有 <code>30-50KB</code> 左右，当你禁用多线程时，这个目录可以被删除以减少包体。</p><p>具体流程如下：</p><ul><li>点击编辑器界面右上角的 <strong>编辑器</strong> 按钮，并跳转到 <code>Resources/builtin/adapters/platforms/wechat/res</code> 目录。</li><li>删除该目录下的 <code>workers</code> 目录。</li><li>打开该目录下的 <code>game.json</code>，删除 <code>workers</code> 字段并保存。</li></ul><p><strong>启用多线程支持时输出的检测错误：</strong></p><p>这是由于你按照上面的步骤删除了多线程所需的文件和配置，所以无法启用多线程支持，只需恢复或者重新安装完整的社区版即可。</p><div class="admonition admonition-tip alert alert--success"><div class="admonition-heading"><h5><span class="admonition-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="16" viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span>注意</h5></div><div class="admonition-content"><p><strong>如果你正在使用付费扩展，则无需手动删除或重新安装，也不会输出任何警告或者错误。</strong></p><p>因为付费扩展会存储已安装版本的备份文件，所以能够自动删除或重新安装。</p><p>如果付费扩展依然输出错误则可能是文件损坏，重新一键安装即可。</p></div></div><p>阅读下面的文档了解详情：</p><section class="row"><article class="col col--6 margin-bottom--lg"><a class="card padding--lg cardContainer_S8oU" href="/cocos-enhance-kit/docs/2.0.0/user-guide/multithread/thread-asset-pipeline"><h2 class="text--truncate cardTitle_HoSo" title="资源管线"> <!-- -->资源管线</h2><p class="text--truncate cardDescription_c27F" title="在多线程中执行资源管线。">在多线程中执行资源管线。</p></a></article><article class="col col--6 margin-bottom--lg"><a class="card padding--lg cardContainer_S8oU" href="/cocos-enhance-kit/docs/2.0.0/user-guide/multithread/thread-audio-system"><h2 class="text--truncate cardTitle_HoSo" title="音频系统"> <!-- -->音频系统</h2><p class="text--truncate cardDescription_c27F" title="在多线程中操作音频。">在多线程中操作音频。</p></a></article></section></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="文档分页导航"><a class="pagination-nav__link pagination-nav__link--prev" href="/cocos-enhance-kit/docs/2.0.0/user-guide/tiledmap/tiledmap-culling"><div class="pagination-nav__sublabel">上一页</div><div class="pagination-nav__label">复用 Culling 数据</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/cocos-enhance-kit/docs/2.0.0/user-guide/multithread/thread-asset-pipeline"><div class="pagination-nav__sublabel">下一页</div><div class="pagination-nav__label">资源管线</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_cNA8 thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#使用代码调整设置" class="table-of-contents__link toc-highlight">使用代码调整设置</a></li><li><a href="#注意事项" class="table-of-contents__link toc-highlight">注意事项</a></li></ul></div></div></div></div></main></div></div></div>
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