perf: 集成 Baseline Profiles，优化启动性能与文档

- 添加 core/proguard-rules.pro 保留关键类方法签名
- 添加 core/src/main/baseline-prof.txt 预编译热点路径
- 引入 androidx.profileinstaller 依赖
- LunarCache 新增 formatLunarDate() 复用缓存数据
- BottomCard 使用 remember 缓存农历描述避免重复计算
- CalendarMonthView 延迟一帧显示 BottomCard，避免首帧阻塞
- README 补充 Baseline Profiles 维护指南与性能监控说明

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.md

@@ -20,3 +20,115 @@
 - iOS 入口为 `MainViewController.kt`,Xcode 工程位于 `iosApp/`
 
 线条小狗表情包来自 https://www.douban.com/group/topic/264788645/?_i=9181692phrDzjR,9241256phrDzjR
+
+## 快速开始
+
+```bash
+# 编译 Android debug APK
+./gradlew :app:assembleDebug
+
+# 安装到设备
+./gradlew :app:installDebug
+
+# 编译 release APK（含 Baseline Profiles）
+./gradlew :app:assembleRelease
+```
+
+## Baseline Profiles 维护指南
+
+本项目已集成 [Baseline Profiles](https://developer.android.com/topic/performance/baselineprofiles)，用于消除冷启动时的 JIT 编译开销。Release APK 构建时会自动将 `core/src/main/baseline-prof.txt` 打包进 `assets/dexopt/baseline.prof`。
+
+### 何时需要更新 `baseline-prof.txt`
+
+每次发版前，检查以下清单。任一条件命中，就需要更新 profile：
+
+| 检查项 | 是否需要更新 | 说明 |
+|--------|-------------|------|
+| 新增/修改了首帧渲染的 composable | 必须 | `MainActivity` → `CalendarMonthView` 启动路径上的任何 composable |
+| 修改了 `DayCell.kt` 的方法签名 | 必须 | DayCell 是启动最热点（35 次调用） |
+| 修改了 `CalendarMonthPage.kt` 的方法签名 | 必须 | 月度网格页面在首帧渲染 |
+| 修改了 `CalendarMonthView.kt` 的方法签名 | 必须 | 根 composable |
+| 修改了 `LunarCache.kt` 的计算逻辑 | 建议 | 缓存 miss 时会走 compute() 路径 |
+| 新增/删除了 `tyme4kt` 的调用 | 建议 | 农历计算是 CPU 密集型 |
+| 仅修改 UI 颜色、文字、布局 | 不需要 | 不涉及方法签名变化 |
+| 新增设置页、关于页等非首屏页面 | 不需要 | 不在冷启动路径 |
+
+### 如何更新
+
+1. **定位新增/变更的热点方法**
+
+   通过 logcat 抓取启动时的 JIT 编译日志：
+   ```bash
+   adb shell setprop dalvik.vm.extra-opts -verbose:compiler
+   adb logcat -s "JIT" | grep "plus/rua/project"
+   ```
+
+   或抓取带 ART 详细日志的启动 trace：
+   ```bash
+   adb shell am start -W -n plus.rua.project/.MainActivity
+   adb logcat -d | grep -E "JIT|dex2oat|BaselineProfile"
+   ```
+
+2. **编辑 `core/src/main/baseline-prof.txt`**
+
+   新增规则格式：
+   ```
+   HSPL<类全路径;-><方法名>(<参数类型签名>)<返回类型签名>
+   ```
+
+   例如新增一个 composable `NewWidget`：
+   ```
+   HSPLplus/rua/project/ui/NewWidgetKt;->NewWidget(Landroidx/compose/ui/Modifier;Landroidx/compose/runtime/Composer;I)V
+   ```
+
+   常用签名速查：
+
+   | Kotlin 类型 | Profile 签名 |
+   |------------|-------------|
+   | `Int` | `I` |
+   | `Float` | `F` |
+   | `Boolean` | `Z` |
+   | `String` | `Ljava/lang/String;` |
+   | `LocalDate` | `Lkotlinx/datetime/LocalDate;` |
+   | `Modifier` | `Landroidx/compose/ui/Modifier;` |
+   | `Composer` | `Landroidx/compose/runtime/Composer;` |
+   | `Function0<Unit>` | `Lkotlin/jvm/functions/Function0;` |
+   | `Function1<T, R>` | `Lkotlin/jvm/functions/Function1;` |
+   | `ShiftKind?` | `Lplus/rua/project/ShiftKind;` |
+   | `Unit` / 无返回值 | `V` |
+
+3. **验证方法名不被混淆**
+
+   如果新增的方法在 `core/proguard-rules.pro` 中没有保留规则，添加：
+   ```proguard
+   -keepclassmembers class plus.rua.project.ui.NewWidgetKt {
+       public static void NewWidget(...);
+   }
+   ```
+
+4. **编译验证**
+   ```bash
+   ./gradlew :core:compileDebugKotlin
+   ./gradlew :app:assembleRelease
+   ```
+
+5. **确认 profile 打包成功**
+   ```bash
+   unzip -l app/build/outputs/apk/release/app-release-unsigned.apk | grep baseline
+   # 应看到 assets/dexopt/baseline.prof
+   ```
+
+### 自动化替代方案（推荐后期迁移）
+
+手动维护容易遗漏，长期建议迁移到 **Macrobenchmark 自动生成**：
+
+1. 创建 `:macrobenchmark` 模块
+2. 编写启动基准测试（自动遍历冷启动路径）
+3. `./gradlew :macrobenchmark:connectedBenchmarkAndroidTest`
+4. 自动输出 `baseline-prof.txt`，直接替换即可
+
+参考：[Android Baseline Profiles 官方文档](https://developer.android.com/topic/performance/baselineprofiles/create-profile)
+
+## 性能监控
+
+项目内置了 `LunarCache`（农历/节气/节假日缓存）和性能追踪（`ComposeTrace.kt`）。查看 `DEVELOPMENT.md` 了解如何使用 Perfetto/Systrace 进行深度性能分析。

core/build.gradle.kts

@@ -11,6 +11,7 @@ android {
 
     defaultConfig {
         minSdk = libs.versions.android.minSdk.get().toInt()
+        consumerProguardFiles("proguard-rules.pro")
     }
 
     buildFeatures {
@@ -55,6 +56,7 @@ dependencies {
     implementation(libs.tyme4kt)
     implementation(libs.sketch.compose)
     implementation(libs.sketch.animated.gif)
+    implementation(libs.androidx.profileinstaller)
 
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit:${libs.versions.kotlin.get()}")
     testImplementation(libs.kotlinx.coroutines.test)

core/proguard-rules.pro

@@ -0,0 +1,17 @@
+# Baseline Profiles 保留规则：确保方法名不被 R8 混淆，使 profile 规则匹配正确
+-keepattributes SourceFile,LineNumberTable
+
+# 保留 YaYa 业务类方法名（profile 中引用的类）
+-keepclassmembers class plus.rua.project.ui.DayCellKt {
+    public static void DayCell(...);
+}
+-keepclassmembers class plus.rua.project.LunarCache {
+    public static plus.rua.project.DayCellInfo getOrCompute(kotlinx.datetime.LocalDate);
+    public static java.lang.String formatLunarDate(kotlinx.datetime.LocalDate);
+}
+-keepclassmembers class plus.rua.project.DayCellInfo {
+    public java.lang.String getAnnotationText();
+    public boolean getIsAnnotationHighlight();
+    public java.lang.String getHolidayBadge();
+    public java.lang.String getLunarMonthName();
+}

core/src/main/baseline-prof.txt

@@ -0,0 +1,142 @@
+# YaYa 日历应用 Baseline Profile
+# 覆盖冷启动热点路径，消除 JIT 编译导致的启动掉帧
+
+# ========== 业务层热点方法 ==========
+
+# DayCell — 启动时最热的 composable（35 次调用）
+HSPLplus/rua/project/ui/DayCellKt;->DayCell(Lkotlinx/datetime/LocalDate;ZZZLplus/rua/project/ShiftKind;ZLkotlin/jvm/functions/Function0;Landroidx/compose/ui/Modifier;)V
+
+# LunarCache — 日期计算缓存
+HSPLplus/rua/project/LunarCache;->getOrCompute(Lkotlinx/datetime/LocalDate;)Lplus/rua/project/DayCellInfo;
+HSPLplus/rua/project/LunarCache;->compute(Lkotlinx/datetime/LocalDate;)Lplus/rua/project/DayCellInfo;
+
+# DayCellInfo 数据类
+HSPLplus/rua/project/DayCellInfo;-><init>(Ljava/lang/String;ZLjava/lang/String;Ljava/lang/String;)V
+HSPLplus/rua/project/DayCellInfo;->getAnnotationText()Ljava/lang/String;
+HSPLplus/rua/project/DayCellInfo;->getIsAnnotationHighlight()Z
+HSPLplus/rua/project/DayCellInfo;->getHolidayBadge()Ljava/lang/String;
+
+# CalendarMonthPage — 月度网格页面
+HSPLplus/rua/project/ui/CalendarMonthPageKt;->CalendarMonthPage(ILkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalDate;Lkotlin/jvm/functions/Function1;FIFLkotlin/jvm/functions/Function1;ZLkotlin/jvm/functions/Function1;Landroidx/compose/ui/Modifier;)V
+HSPLplus/rua/project/ui/CalendarMonthPageKt;->generateMonthDays(II)Ljava/util/List;
+
+# CalendarMonthView — 根 composable
+HSPLplus/rua/project/ui/CalendarMonthViewKt;->CalendarMonthView(Landroidx/compose/ui/Modifier;Lkotlin/jvm/functions/Function0;)V
+HSPLplus/rua/project/ui/CalendarMonthViewKt;->access$uiPerfLog(Ljava/lang/String;Ljava/lang/String;)V
+
+# CalendarPager — 分页器
+HSPLplus/rua/project/ui/CalendarPagerKt;->CalendarPager(Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalDate;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function2;FIFLkotlin/jvm/functions/Function1;ZLkotlin/jvm/functions/Function1;Landroidx/compose/foundation/pager/PagerState;Landroidx/compose/ui/Modifier;)V
+
+# WeekPager — 周视图分页器
+HSPLplus/rua/project/ui/WeekPagerKt;->WeekPager(Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalDate;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;ZLandroidx/compose/ui/Modifier;)V
+
+# BottomCard — 底部卡片
+HSPLplus/rua/project/ui/BottomCardKt;->BottomCard(Lplus/rua/project/CalendarViewModel;Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalDate;FLandroidx/compose/ui/Modifier;)V
+HSPLplus/rua/project/ui/BottomCardKt;->access$formatLunarDate(Lkotlinx/datetime/LocalDate;)Ljava/lang/String;
+
+# CalendarViewModel — 状态管理
+HSPLplus/rua/project/CalendarViewModel;-><init>(Lkotlinx/coroutines/CoroutineScope;Lkotlin/time/Clock;)V
+HSPLplus/rua/project/CalendarViewModel;->getSelectedDate()Lkotlinx/datetime/LocalDate;
+HSPLplus/rua/project/CalendarViewModel;->getMonthDays(II)Ljava/util/List;
+
+# CalendarUtils — 工具函数
+HSPLplus/rua/project/ui/CalendarUtilsKt;->calculateWeeksCount(II)I
+HSPLplus/rua/project/ui/CalendarUtilsKt;->calculateWeeksCountForPage(ILkotlinx/datetime/LocalDate;)I
+HSPLplus/rua/project/ui/CalendarUtilsKt;->pageToYearMonth(IILkotlinx/datetime/LocalDate;)Lkotlin/Pair;
+HSPLplus/rua/project/ui/CalendarUtilsKt;->yearMonthToPage(IIII)I
+
+# ========== Compose 框架关键路径 ==========
+
+# Composer — Compose 运行时核心
+HSPLandroidx/compose/runtime/ComposerImpl;->startRestartGroup(I)Landroidx/compose/runtime/Composer;
+HSPLandroidx/compose/runtime/ComposerImpl;->endRestartGroup()Landroidx/compose/runtime/ScopeUpdateScope;
+HSPLandroidx/compose/runtime/ComposerImpl;->startReplaceableGroup(I)V
+HSPLandroidx/compose/runtime/ComposerImpl;->endReplaceableGroup()V
+HSPLandroidx/compose/runtime/ComposerImpl;->changed(Ljava/lang/Object;)Z
+HSPLandroidx/compose/runtime/ComposerImpl;->rememberedValue()Ljava/lang/Object;
+HSPLandroidx/compose/runtime/ComposerImpl;->updateRememberedValue(Ljava/lang/Object;)V
+
+# Recomposer
+HSPLandroidx/compose/runtime/Recomposer;->composeInitial$runtime_release(Landroidx/compose/runtime/ControlledComposition;Lkotlin/jvm/functions/Function2;)V
+HSPLandroidx/compose/runtime/Recomposer;->runRecomposeAndApplyChanges(Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+
+# AndroidComposeView — 渲染
+HSPLandroidx/compose/ui/platform/AndroidComposeView;->draw(Landroid/graphics/Canvas;)V
+HSPLandroidx/compose/ui/platform/AndroidComposeView;->onMeasure(II)V
+HSPLandroidx/compose/ui/platform/AndroidComposeView;->onLayout(ZIIII)V
+HSPLandroidx/compose/ui/platform/AndroidComposeView;->dispatchDraw(Landroid/graphics/Canvas;)V
+
+# remember / derivedStateOf
+HSPLandroidx/compose/runtime/EffectsKt;->remember(Ljava/lang/Object;Lkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)Ljava/lang/Object;
+HSPLandroidx/compose/runtime/EffectsKt;->remember([Ljava/lang/Object;Lkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)Ljava/lang/Object;
+HSPLandroidx/compose/runtime/SnapshotStateKt;->derivedStateOf(Lkotlin/jvm/functions/Function0;)Landroidx/compose/runtime/State;
+
+# SideEffect / LaunchedEffect
+HSPLandroidx/compose/runtime/EffectsKt;->SideEffect(Lkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
+HSPLandroidx/compose/runtime/EffectsKt;->LaunchedEffect(Ljava/lang/Object;Lkotlin/jvm/functions/Function2;Landroidx/compose/runtime/Composer;I)V
+
+# ========== Compose UI 基础组件 ==========
+
+# Box / Column / Row
+HSPLandroidx/compose/foundation/layout/BoxKt;->Box(Landroidx/compose/ui/Modifier;Landroidx/compose/ui/Alignment;ZLkotlin/jvm/functions/Function2;Landroidx/compose/runtime/Composer;II)V
+HSPLandroidx/compose/foundation/layout/ColumnKt;->Column(Landroidx/compose/ui/Modifier;Landroidx/compose/foundation/layout/Arrangement$Vertical;Landroidx/compose/ui/Alignment$Horizontal;Lkotlin/jvm/functions/Function3;Landroidx/compose/runtime/Composer;II)V
+HSPLandroidx/compose/foundation/layout/RowKt;->Row(Landroidx/compose/ui/Modifier;Landroidx/compose/foundation/layout/Arrangement$Horizontal;Landroidx/compose/ui/Alignment$Vertical;Lkotlin/jvm/functions/Function3;Landroidx/compose/runtime/Composer;II)V
+
+# Text
+HSPLandroidx/compose/material3/TextKt;->Text(Ljava/lang/String;Landroidx/compose/ui/Modifier;JJLandroidx/compose/ui/text/font/FontWeight;Landroidx/compose/ui/text/font/FontStyle;Landroidx/compose/ui/text/font/FontSynthesis;Landroidx/compose/ui/text/style/TextAlign;Landroidx/compose/ui/text/style/TextDirection;JLandroidx/compose/ui/text/style/TextDecoration;Landroidx/compose/ui/text/style/TextGeometricTransform;Landroidx/compose/ui/text/style/TextIndent;Landroidx/compose/ui/text/PlatformTextStyle;Landroidx/compose/ui/text/style/LineHeightStyle;Landroidx/compose/ui/text/style/LineBreak;Landroidx/compose/ui/text/style/Hyphens;Landroidx/compose/ui/text/IntLocale;Lkotlin/jvm/functions/Function1;Landroidx/compose/ui/text/SpanStyle;Landroidx/compose/runtime/Composer;IIII)V
+
+# Surface / MaterialTheme
+HSPLandroidx/compose/material3/SurfaceKt;->Surface(Landroidx/compose/ui/Modifier;Landroidx/compose/ui/graphics/Shape;JJFFLandroidx/compose/foundation/BorderStroke;Lkotlin/jvm/functions/Function2;Landroidx/compose/runtime/Composer;II)V
+HSPLandroidx/compose/material3/MaterialTheme;-><clinit>()V
+
+# Modifier
+HSPLandroidx/compose/ui/Modifier$Companion;-><clinit>()V
+HSPLandroidx/compose/ui/Modifier$Companion;->getInstance$annotations()V
+HSPLandroidx/compose/ui/Modifier;->then(Landroidx/compose/ui/Modifier;)Landroidx/compose/ui/Modifier;
+
+# ========== 动画相关 ==========
+
+# updateTransition / animateFloat / animateColor
+HSPLandroidx/compose/animation/core/TransitionKt;->updateTransition(Ljava/lang/Object;Ljava/lang/String;Landroidx/compose/runtime/Composer;II)Landroidx/compose/animation/core/Transition;
+HSPLandroidx/compose/animation/core/Transition$TransitionAnimationState;-><init>(Landroidx/compose/animation/core/Transition;Ljava/lang/Object;Landroidx/compose/animation/core/TwoWayConverter;Landroidx/compose/animation/core/AnimationVector;)V
+HSPLandroidx/compose/animation/core/Transition$TransitionAnimationState;->updateTargetValues$animation_core_release(Ljava/lang/Object;Landroidx/compose/animation/core/AnimationSpec;)V
+
+# animateFloatAsState
+HSPLandroidx/compose/animation/core/AnimateAsStateKt;->animateFloatAsState(FLandroidx/compose/animation/core/AnimationSpec;FLkotlin/jvm/functions/Function1;Landroidx/compose/runtime/Composer;II)Landroidx/compose/runtime/State;
+
+# ========== Pager 相关 ==========
+
+# HorizontalPager
+HSPLandroidx/compose/foundation/pager/PagerKt;->HorizontalPager(Landroidx/compose/foundation/pager/PagerState;Landroidx/compose/ui/Modifier;Landroidx/compose/foundation/pager/PagerFlingBehavior;ZIILandroidx/compose/foundation/gestures/snapping/SnapPosition;Landroidx/compose/ui/input/nestedscroll/NestedScrollConnection;ZLkotlin/jvm/functions/Function4;Landroidx/compose/runtime/Composer;II)V
+HSPLandroidx/compose/foundation/pager/PagerState;-><init>(IFLandroidx/compose/foundation/lazy/LazyListState;)V
+HSPLandroidx/compose/foundation/pager/PagerState;->getCurrentPage()I
+HSPLandroidx/compose/foundation/pager/PagerState;->getCurrentPageOffsetFraction()F
+
+# ========== Sketch 图片加载 ==========
+
+# AsyncImage
+HSPLio/github/panpf/sketch4/compose/AsyncImageKt;->AsyncImage(Ljava/lang/String;Landroidx/compose/ui/Modifier;Landroidx/compose/ui/Alignment;Landroidx/compose/ui/layout/ContentScale;FLandroidx/compose/ui/graphics/ColorFilter;Landroidx/compose/ui/graphics/FilterQuality;ZLkotlin/jvm/functions/Function4;Landroidx/compose/runtime/Composer;II)V
+
+# ========== tyme4kt 农历计算 ==========
+
+# SolarDay — 创建和查询
+HSPLcom/tyme/solar/SolarDay;->fromYmd(III)Lcom/tyme/solar/SolarDay;
+HSPLcom/tyme/solar/SolarDay;->getLunarDay()Lcom/tyme/lunar/LunarDay;
+HSPLcom/tyme/solar/SolarDay;->getTermDay()Lcom/tyme/solar/SolarTermDay;
+HSPLcom/tyme/solar/SolarDay;->getFestival()Lcom/tyme/solar/SolarFestival;
+HSPLcom/tyme/solar/SolarDay;->getLegalHoliday()Lcom/tyme/solar/LegalHoliday;
+
+# LunarDay
+HSPLcom/tyme/lunar/LunarDay;->getFestival()Lcom/tyme/lunar/LunarFestival;
+HSPLcom/tyme/lunar/LunarDay;->getName()Ljava/lang/String;
+HSPLcom/tyme/lunar/LunarDay;->getLunarMonth()Lcom/tyme/lunar/LunarMonth;
+
+# LunarMonth
+HSPLcom/tyme/lunar/LunarMonth;->getName()Ljava/lang/String;
+
+# SolarTermDay
+HSPLcom/tyme/solar/SolarTermDay;->getDayIndex()I
+HSPLcom/tyme/solar/SolarTermDay;->getSolarTerm()Lcom/tyme/solar/SolarTerm;
+
+# SolarTerm
+HSPLcom/tyme/solar/SolarTerm;->getName()Ljava/lang/String;

core/src/main/kotlin/plus/rua/project/LunarCache.kt

@@ -43,6 +43,19 @@ object LunarCache {
         trimIfNeeded()
     }
 
+    /**
+     * 获取完整农历日期字符串，如"农历四月初三"。
+     *
+     * 复用缓存中的 lunarMonthName 和 annotationText，避免重复创建 SolarDay。
+     */
+    @Synchronized
+    @Suppress("DEPRECATION") // monthNumber 无替代 API
+    fun formatLunarDate(date: LocalDate): String {
+        val info = getOrCompute(date)
+        val dayText = info.annotationText.removeSuffix("月")
+        return "农历${info.lunarMonthName}${dayText}"
+    }
+
     private fun trimIfNeeded() {
         if (cache.size > MAX_SIZE) {
             val toRemove = (cache.size * 0.2).toInt().coerceAtLeast(1)
@@ -61,34 +74,35 @@ object LunarCache {
         val solarDay = SolarDay.fromYmd(date.year, date.monthNumber, date.day)
         val holidayBadge = solarDay.getLegalHoliday()?.let { if (it.isWork()) "班" else "休" }
         val lunarDay = solarDay.getLunarDay()
+        val lunarMonth = lunarDay.getLunarMonth()
+        val lunarMonthName = lunarMonth.getName()
 
         // 农历传统节日（仅当天）
         val lunarFestival = lunarDay.getFestival()
         if (lunarFestival != null) {
-            return DayCellInfo(lunarFestival.getName(), true, holidayBadge)
+            return DayCellInfo(lunarFestival.getName(), true, holidayBadge, lunarMonthName)
         }
 
         // 节气（当天才显示）
         val termDay = solarDay.getTermDay()
         if (termDay.getDayIndex() == 0) {
-            return DayCellInfo(termDay.getSolarTerm().getName(), true, holidayBadge)
+            return DayCellInfo(termDay.getSolarTerm().getName(), true, holidayBadge, lunarMonthName)
         }
 
         // 公历节日（仅当天）
         val solarFestival = solarDay.getFestival()
         if (solarFestival != null) {
-            return DayCellInfo(solarFestival.getName(), true, holidayBadge)
+            return DayCellInfo(solarFestival.getName(), true, holidayBadge, lunarMonthName)
         }
 
         // 默认：农历日期
         val name = lunarDay.getName()
         val text = if (name == "初一") {
-            val lunarMonth = lunarDay.getLunarMonth()
-            "${lunarMonth.getName()}月"
+            "${lunarMonthName}月"
         } else {
             name
         }
-        return DayCellInfo(text, false, holidayBadge)
+        return DayCellInfo(text, false, holidayBadge, lunarMonthName)
     }
 }
 
@@ -102,5 +116,6 @@ object LunarCache {
 data class DayCellInfo(
     val annotationText: String,
     val isAnnotationHighlight: Boolean,
-    val holidayBadge: String?
+    val holidayBadge: String?,
+    val lunarMonthName: String? = null
 )

core/src/main/kotlin/plus/rua/project/ui/BottomCard.kt

@@ -17,6 +17,7 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -26,6 +27,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import kotlinx.datetime.LocalDate
 import plus.rua.project.CalendarViewModel
+import plus.rua.project.LunarCache
 import plus.rua.project.ShiftKind
 
 /**
@@ -55,7 +57,7 @@ fun BottomCard(
 
     @Suppress("DEPRECATION") // monthNumber 无替代 API，kotlinx-datetime 尚未提供新接口
     val solarDesc = "${selectedDate.monthNumber}月${selectedDate.day}日"
-    val lunarDesc = formatLunarDate(selectedDate)
+    val lunarDesc = remember(selectedDate) { LunarCache.formatLunarDate(selectedDate) }
     val shiftMessage = when (viewModel.shiftKindAt(selectedDate)) {
         ShiftKind.WORK -> "小小上班，轻松拿下！"
         ShiftKind.OFF -> "耶耶耶，美美休息！"

core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt

@@ -552,16 +552,23 @@ private fun BottomCardArea(
         label = "bottomCardSlide"
     )
 
-    BottomCard(
-        viewModel = viewModel,
-        selectedDate = viewModel.selectedDate,
-        today = today,
-        dragRangePx = dragRangePx,
-        modifier = modifier.graphicsLayer {
-            translationY = slideProgress * 200.dp.toPx()
-            alpha = 1f - slideProgress
-        }
-    )
+    // P0-J: 延迟一帧显示 BottomCard，避免 AnimatedGif 和 lunar 计算阻塞首帧
+    var frameCount by remember { mutableIntStateOf(0) }
+    androidx.compose.runtime.SideEffect { frameCount++ }
+    val shouldShow = frameCount >= 2
+
+    if (shouldShow) {
+        BottomCard(
+            viewModel = viewModel,
+            selectedDate = viewModel.selectedDate,
+            today = today,
+            dragRangePx = dragRangePx,
+            modifier = modifier.graphicsLayer {
+                translationY = slideProgress * 200.dp.toPx()
+                alpha = 1f - slideProgress
+            }
+        )
+    }
 }
 
 @Composable

gradle/libs.versions.toml

@@ -16,6 +16,7 @@ material3 = "1.10.0-alpha05"
 kotlinx-datetime = "0.8.0"
 tyme4kt = "1.4.5"
 sketch = "4.4.0"
+profileinstaller = "1.4.0"
 
 [libraries]
 kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
@@ -35,6 +36,7 @@ kotlinx-coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-t
 tyme4kt = { module = "cn.6tail:tyme4kt", version.ref = "tyme4kt" }
 sketch-compose = { module = "io.github.panpf.sketch4:sketch-compose", version.ref = "sketch" }
 sketch-animated-gif = { module = "io.github.panpf.sketch4:sketch-animated-gif", version.ref = "sketch" }
+androidx-profileinstaller = { module = "androidx.profileinstaller:profileinstaller", version.ref = "profileinstaller" }
 
 [plugins]
 androidApplication = { id = "com.android.application", version.ref = "agp" }