feat: 移除共享元素转场，月/年视图切换改用缩放+淡入淡出动画

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

@@ -4,7 +4,6 @@ import androidx.compose.animation.AnimatedContent
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.EnterTransition
 import androidx.compose.animation.ExitTransition
-import androidx.compose.animation.SharedTransitionLayout
 import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.animateFloatAsState
@@ -12,11 +11,8 @@ import androidx.compose.animation.core.spring
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
-import androidx.compose.animation.ExperimentalSharedTransitionApi
 import androidx.compose.animation.scaleIn
 import androidx.compose.animation.scaleOut
-import androidx.compose.animation.slideInVertically
-import androidx.compose.animation.slideOutVertically
 import androidx.compose.animation.togetherWith
 import androidx.compose.ui.graphics.TransformOrigin
 import androidx.compose.ui.graphics.graphicsLayer
@@ -88,14 +84,13 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import plus.rua.project.util.logd
 
 /**
- * 日历主界面，包含月/周视图切换、折叠动画和年视图共享元素转场。
+ * 日历主界面，包含月/周视图切换、折叠动画和年视图转场。
  *
  * 折叠时日历从月视图收缩为周视图（1行），BottomCard 同步上移填充空间。
- * 通过左下角 FAB 菜单切换月/年视图，使用 SharedTransitionLayout 实现共享元素转场。
+ * 通过左下角 FAB 菜单切换月/年视图。
  *
  * @param modifier 外部布局修饰符
  */
-@OptIn(ExperimentalSharedTransitionApi::class)
 @Composable
 fun CalendarMonthView(
     modifier: Modifier = Modifier,
@@ -185,8 +180,6 @@ fun CalendarMonthView(
                 screenWidthPx = size.width
             }
     ) {
-        SharedTransitionLayout {
-            val sharedScope = this
             var lastLoggedTargetState by remember { mutableStateOf(false) }
             SideEffect {
                 if (lastLoggedTargetState != isYearView) {
@@ -198,10 +191,14 @@ fun CalendarMonthView(
                 targetState = isYearView,
                 label = "month_year_transition",
                 transitionSpec = {
-                    val enter = fadeIn(tween(300, easing = FastOutSlowInEasing)) +
+                    val enter = scaleIn(
-                        slideInVertically(tween(300, easing = FastOutSlowInEasing)) { it / 6 }
+                        initialScale = 0.85f,
-                    val exit = fadeOut(tween(200, easing = FastOutSlowInEasing)) +
+                        animationSpec = tween(350, easing = FastOutSlowInEasing)
-                        slideOutVertically(tween(200, easing = FastOutSlowInEasing)) { -it / 6 }
+                    ) + fadeIn(tween(250, easing = FastOutSlowInEasing))
+                    val exit = scaleOut(
+                        targetScale = 0.85f,
+                        animationSpec = tween(250, easing = FastOutSlowInEasing)
+                    ) + fadeOut(tween(200, easing = FastOutSlowInEasing))
                     enter togetherWith exit
                 },
                 modifier = Modifier.fillMaxSize()
@@ -261,9 +258,6 @@ fun CalendarMonthView(
                             val onRowHeightMeasured = remember {
                                 { h: Int -> if (h > 0) rowHeightPx = h }
                             }
-                            with(sharedScope) {
-                                // P0: 缓存 sharedElement tween，避免每次重组创建新实例导致动画重新计算
-                                val sharedTween = remember { tween<androidx.compose.ui.geometry.Rect>(400, easing = FastOutSlowInEasing) }
                             CalendarPagerArea(
                                 selectedDate = selectedDate,
                                 today = today,
@@ -276,17 +270,8 @@ fun CalendarMonthView(
                                 shiftKindAt = shiftKindAt,
                                 onRowHeightMeasured = onRowHeightMeasured,
                                 pagerState = pagerState,
-                                    modifier = Modifier
+                                modifier = Modifier.clipToBounds()
-                                        .sharedElement(
-                                            sharedContentState = rememberSharedContentState(
-                                                key = "month_grid_${currentYear}_${currentMonth}"
-                                            ),
-                                            animatedVisibilityScope = this@AnimatedContent,
-                                            boundsTransform = { _, _ -> sharedTween }
                             )
-                                        .clipToBounds()
-                                )
-                            }
                             BottomCardArea(
                                 viewModel = viewModel,
                                 today = today,
@@ -365,8 +350,6 @@ fun CalendarMonthView(
                                         coroutineScope.launch { pagerState.scrollToPage(targetPage) }
                                     }
                                 },
-                                sharedTransitionScope = sharedScope,
-                                animatedVisibilityScope = this@AnimatedContent,
                                 modifier = Modifier
                             )
                         }
@@ -374,7 +357,6 @@ fun CalendarMonthView(
                     composeTraceEndSection()
                 }
             }
-        }
 
         // FAB 浮动按钮
     FloatingActionButton(

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

@@ -1,9 +1,6 @@
 package plus.rua.project.ui
 
 import androidx.compose.animation.AnimatedContent
-import androidx.compose.animation.AnimatedVisibilityScope
-import androidx.compose.animation.ExperimentalSharedTransitionApi
-import androidx.compose.animation.SharedTransitionScope
 import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.animation.core.tween
@@ -74,19 +71,14 @@ private data class MiniMonthColors(
  * @param selectedMonth 当前选中月份（1-12）
  * @param today 今天的日期
  * @param onMonthClick 月份点击回调
- * @param sharedTransitionScope 共享元素转场作用域
- * @param animatedVisibilityScope 动画可见性作用域
  * @param modifier 外部布局修饰符
  */
-@OptIn(ExperimentalSharedTransitionApi::class)
 @Composable
 fun YearGridView(
     year: Int,
     selectedMonth: Int,
     today: LocalDate,
     onMonthClick: (Int) -> Unit,
-    sharedTransitionScope: SharedTransitionScope,
-    animatedVisibilityScope: AnimatedVisibilityScope,
     modifier: Modifier = Modifier
 ) {
     val enterT = System.nanoTime()
@@ -176,10 +168,6 @@ fun YearGridView(
                 ) {
                     (0 until 3).forEach { col ->
                         val month = row * 3 + col + 1
-                        with(sharedTransitionScope) {
-                            // P0: 缓存 sharedElement tween，避免每次重组创建新实例
-                            val miniMonthTween = remember { tween<androidx.compose.ui.geometry.Rect>(400, easing = FastOutSlowInEasing) }
-                            val seKey = "month_grid_${year}_$month"
                         MiniMonth(
                             year = year,
                             month = month,
@@ -191,17 +179,8 @@ fun YearGridView(
                             titleLayouts = titleLayouts,
                             weekdayLayouts = weekdayLayouts,
                             onClick = { onMonthClick(month) },
-                                modifier = Modifier
+                            modifier = Modifier.weight(1f)
-                                    .weight(1f)
-                                    .sharedElement(
-                                        sharedContentState = rememberSharedContentState(
-                                            key = seKey
-                                        ),
-                                        animatedVisibilityScope = animatedVisibilityScope,
-                                        boundsTransform = { _, _ -> miniMonthTween }
                         )
-                            )
-                        }
                     }
                 }
             }