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perf(theme): memoize themes to stop AnimatedTheme re-lerp storm

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This commit is contained in:
klockky
2026-05-16 12:03:12 +03:00
parent 43c8d0d68c
commit fadb81652d
1 changed files with 41 additions and 20 deletions
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lib/main.dart
+41 -20
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@@ -260,6 +260,43 @@ class KometAppState extends State<KometApp> {
_profileUpdateController.add(null);
}
String? _themeCacheFontId;
ColorScheme? _themeCacheLight;
ColorScheme? _themeCacheDark;
ThemeData? _lightTheme;
ThemeData? _darkTheme;
void _rebuildThemesIfNeeded(ColorScheme light, ColorScheme dark) {
if (_themeCacheFontId == _fontId &&
_themeCacheLight == light &&
_themeCacheDark == dark) {
return;
}
_themeCacheFontId = _fontId;
_themeCacheLight = light;
_themeCacheDark = dark;
_lightTheme = withM3ETheme(
ThemeData(
useMaterial3: true,
colorScheme: light,
textTheme: AppFonts.textTheme(
_fontId,
ThemeData(brightness: Brightness.light).textTheme,
),
),
);
_darkTheme = withM3ETheme(
ThemeData(
useMaterial3: true,
colorScheme: dark,
textTheme: AppFonts.textTheme(
_fontId,
ThemeData(brightness: Brightness.dark).textTheme,
),
),
);
}
ColorScheme _adjustDarkScheme(ColorScheme base) {
return base.copyWith(
surface: Color.alphaBlend(
@@ -314,6 +351,8 @@ class KometAppState extends State<KometApp> {
final lightScheme = _adjustLightScheme(lightBase);
final darkScheme = _adjustDarkScheme(darkBase);
_rebuildThemesIfNeeded(lightScheme, darkScheme);
return MaterialApp(
title: 'Komet',
debugShowCheckedModeBanner: false,
@@ -321,26 +360,8 @@ class KometAppState extends State<KometApp> {
themeMode: ThemeMode.system,
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
theme: withM3ETheme(
ThemeData(
useMaterial3: true,
colorScheme: lightScheme,
textTheme: AppFonts.textTheme(
_fontId,
ThemeData(brightness: Brightness.light).textTheme,
),
),
),
darkTheme: withM3ETheme(
ThemeData(
useMaterial3: true,
colorScheme: darkScheme,
textTheme: AppFonts.textTheme(
_fontId,
ThemeData(brightness: Brightness.dark).textTheme,
),
),
),
theme: _lightTheme,
darkTheme: _darkTheme,
navigatorKey: KometApp.navigatorKey,
builder: (context, child) {
final scaledChild = MediaQuery.withClampedTextScaling(