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perf: CalendarPager alpha() → graphicsLayer 避免滑动重组

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月份切换滑动时 pageOffset 每帧变化，alpha() Modifier 触发重组。
改用 graphicsLayer 在 draw 阶段更新透明度，跳过 Composition/Layout。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
xfy 2026-05-25 16:47:04 +08:00
parent da46204de4
commit 01a7d7aed8
1 changed files with 2 additions and 2 deletions
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4
core/src/main/kotlin/plus/rua/project/ui/CalendarPager.kt
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@ -11,7 +11,7 @@ import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.runtime.snapshotFlow import androidx.compose.runtime.snapshotFlow
import androidx.compose.ui.Modifier import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.alpha import androidx.compose.ui.graphics.graphicsLayer
import kotlinx.coroutines.flow.drop import kotlinx.coroutines.flow.drop
import kotlinx.coroutines.launch import kotlinx.coroutines.launch
import kotlinx.datetime.LocalDate import kotlinx.datetime.LocalDate
@ -117,7 +117,7 @@ fun CalendarPager(
shiftKindAt = shiftKindAt, shiftKindAt = shiftKindAt,
showLegalHoliday = showLegalHoliday, showLegalHoliday = showLegalHoliday,
onRowHeightMeasured = onRowHeightMeasured, onRowHeightMeasured = onRowHeightMeasured,
modifier = Modifier.alpha(alpha) modifier = Modifier.graphicsLayer { this.alpha = alpha }
) )
} }
} }