perf(theme): onLaunch 提前设导航栏色,缩小冷启动橙->主题色跳变
新增 applyChrome() 在 onLaunch 第一行调用,把导航栏变色点从首页 onShow 提前到 onLaunch,缩短冷启动橙色跳变窗口。app.json 静态橙色在 JS 执行前 生效是框架硬限制,无法完全消除。 Co-Authored-By: Claude <noreply@anthropic.com>
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@@ -5,6 +5,10 @@ const darkMod = require('./utils/darkMode')
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App({
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async onLaunch() {
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// 尽早设导航栏色 + 窗口背景:原生导航栏在 JS 执行前用 app.json 写死的
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// 橙色,这里在 onLaunch 第一时间切到用户主题色,缩小冷启动跳变窗口。
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themeMod.applyChrome()
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// Init dark mode listener (refreshes all open pages when system theme changes)
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darkMod.watchDarkMode((isDark) => {
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const pages = getCurrentPages()
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@@ -39,9 +43,6 @@ App({
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this.globalData.theme = themeMod.getCurrentTheme()
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// 窗口背景色 — 冷启动就设好,避免暗黑模式下切 tab 闪白
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themeMod.applyWindowBg()
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// Sync with cloud: always locate our doc first (pullAll caches
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// _openid / _docId), then either restore or push. The previous flow
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// only pulled when local was empty, so on a cold start with non-empty
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@@ -130,11 +130,25 @@ const applyWindowBg = () => {
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} catch (e) {}
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}
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/**
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* 冷启动尽早调用:设导航栏色 + 窗口背景。
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* 原生导航栏在 JS 执行前用 app.json 写死的橙色,这里在 onLaunch 第一时间
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* 切到用户主题色,把冷启动橙->主题色的跳变窗口压到最小(无法完全消除,
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* 因为 app.json 静态值在 onLaunch 之前就已应用)。
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*/
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const applyChrome = () => {
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try {
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_setNavBarColor(getCurrentTheme().primary)
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applyWindowBg()
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} catch (e) {}
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}
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module.exports = {
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THEMES,
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DEFAULT_THEME_ID,
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BASE_VARS,
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applyWindowBg,
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applyChrome,
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getThemeById,
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getCurrentTheme,
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setTheme,
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